java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf -i ../../../trunk/examples/programs/real-life/divisibilityWithArray.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-0302a3f [2019-02-27 12:54:53,375 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-02-27 12:54:53,378 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-02-27 12:54:53,390 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-02-27 12:54:53,430 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf [2019-02-27 12:54:53,444 INFO L110 SettingsManager]: Loading preferences was successful [2019-02-27 12:54:53,444 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-02-27 12:54:53,445 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-02-27 12:54:53,445 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-02-27 12:54:53,445 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-02-27 12:54:53,446 INFO L133 SettingsManager]: * User list type=DISABLED [2019-02-27 12:54:53,446 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-02-27 12:54:53,446 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-02-27 12:54:53,446 INFO L133 SettingsManager]: * Explicit value domain=true [2019-02-27 12:54:53,447 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-02-27 12:54:53,447 INFO L133 SettingsManager]: * Octagon Domain=false [2019-02-27 12:54:53,447 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2019-02-27 12:54:53,447 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-02-27 12:54:53,447 INFO L133 SettingsManager]: * Interval Domain=false [2019-02-27 12:54:53,448 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-02-27 12:54:53,448 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-02-27 12:54:53,449 INFO L133 SettingsManager]: * Use SBE=true [2019-02-27 12:54:53,449 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-02-27 12:54:53,449 INFO L133 SettingsManager]: * sizeof long=4 [2019-02-27 12:54:53,449 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-02-27 12:54:53,449 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-02-27 12:54:53,450 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-02-27 12:54:53,450 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-02-27 12:54:53,450 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-02-27 12:54:53,450 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-02-27 12:54:53,451 INFO L133 SettingsManager]: * sizeof long double=12 [2019-02-27 12:54:53,451 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-02-27 12:54:53,451 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-02-27 12:54:53,451 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-02-27 12:54:53,451 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-02-27 12:54:53,452 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-02-27 12:54:53,452 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-02-27 12:54:53,452 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-02-27 12:54:53,452 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-02-27 12:54:53,452 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-02-27 12:54:53,453 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-02-27 12:54:53,453 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-02-27 12:54:53,453 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-02-27 12:54:53,453 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-02-27 12:54:53,454 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-02-27 12:54:53,485 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-02-27 12:54:53,503 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-02-27 12:54:53,507 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-02-27 12:54:53,511 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-02-27 12:54:53,512 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-02-27 12:54:53,513 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/divisibilityWithArray.bpl [2019-02-27 12:54:53,513 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/divisibilityWithArray.bpl' [2019-02-27 12:54:53,558 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-02-27 12:54:53,560 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-02-27 12:54:53,560 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-02-27 12:54:53,561 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-02-27 12:54:53,561 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-02-27 12:54:53,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 27.02 12:54:53" (1/1) ... [2019-02-27 12:54:53,592 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 27.02 12:54:53" (1/1) ... [2019-02-27 12:54:53,598 WARN L165 Inliner]: Program contained no entry procedure! [2019-02-27 12:54:53,598 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-02-27 12:54:53,599 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-02-27 12:54:53,601 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-02-27 12:54:53,602 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-02-27 12:54:53,602 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-02-27 12:54:53,602 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-02-27 12:54:53,614 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 27.02 12:54:53" (1/1) ... [2019-02-27 12:54:53,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 27.02 12:54:53" (1/1) ... [2019-02-27 12:54:53,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 27.02 12:54:53" (1/1) ... [2019-02-27 12:54:53,616 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 27.02 12:54:53" (1/1) ... [2019-02-27 12:54:53,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 27.02 12:54:53" (1/1) ... [2019-02-27 12:54:53,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 27.02 12:54:53" (1/1) ... [2019-02-27 12:54:53,625 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 27.02 12:54:53" (1/1) ... [2019-02-27 12:54:53,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-02-27 12:54:53,627 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-02-27 12:54:53,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-02-27 12:54:53,627 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-02-27 12:54:53,628 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 27.02 12:54:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-02-27 12:54:53,692 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-02-27 12:54:53,693 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-02-27 12:54:53,693 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-02-27 12:54:53,899 INFO L278 CfgBuilder]: Using library mode [2019-02-27 12:54:53,900 INFO L286 CfgBuilder]: Removed 0 assue(true) statements. [2019-02-27 12:54:53,902 INFO L202 PluginConnector]: Adding new model divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.02 12:54:53 BoogieIcfgContainer [2019-02-27 12:54:53,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-02-27 12:54:53,903 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-02-27 12:54:53,903 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-02-27 12:54:53,907 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-02-27 12:54:53,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 27.02 12:54:53" (1/2) ... [2019-02-27 12:54:53,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4725bf35 and model type divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.02 12:54:53, skipping insertion in model container [2019-02-27 12:54:53,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.02 12:54:53" (2/2) ... [2019-02-27 12:54:53,910 INFO L112 eAbstractionObserver]: Analyzing ICFG divisibilityWithArray.bpl [2019-02-27 12:54:53,921 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-02-27 12:54:53,934 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-02-27 12:54:53,951 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-02-27 12:54:53,990 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-02-27 12:54:53,990 INFO L383 AbstractCegarLoop]: Hoare is true [2019-02-27 12:54:53,991 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-02-27 12:54:53,991 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-02-27 12:54:53,991 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-02-27 12:54:53,991 INFO L387 AbstractCegarLoop]: Difference is false [2019-02-27 12:54:53,991 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-02-27 12:54:53,991 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-02-27 12:54:54,011 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-02-27 12:54:54,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-02-27 12:54:54,026 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:54:54,027 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-02-27 12:54:54,032 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:54:54,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:54:54,040 INFO L82 PathProgramCache]: Analyzing trace with hash 29920, now seen corresponding path program 1 times [2019-02-27 12:54:54,043 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:54:54,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:54:54,093 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 12:54:54,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:54:54,094 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:54:54,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:54:54,765 WARN L181 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 19 [2019-02-27 12:54:54,945 INFO L273 TraceCheckUtils]: 0: Hoare triple {9#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {11#(and (or (< 0 main_n) (and (<= (* 4 main_n) main_i) (< main_i (+ (* 4 main_n) 1)) (= 23 (select main_a main_i)))) (<= main_i 0))} is VALID [2019-02-27 12:54:54,950 INFO L273 TraceCheckUtils]: 1: Hoare triple {11#(and (or (< 0 main_n) (and (<= (* 4 main_n) main_i) (< main_i (+ (* 4 main_n) 1)) (= 23 (select main_a main_i)))) (<= main_i 0))} assume a[i] != 23;i := i + 4; {12#(and (< 0 main_n) (<= main_i 4))} is VALID [2019-02-27 12:54:54,951 INFO L273 TraceCheckUtils]: 2: Hoare triple {12#(and (< 0 main_n) (<= main_i 4))} assume !(i <= n * 4); {10#false} is VALID [2019-02-27 12:54:54,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:54:54,954 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-02-27 12:54:54,954 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-02-27 12:54:54,954 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-02-27 12:54:54,959 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-02-27 12:54:54,960 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:54:54,963 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2019-02-27 12:54:54,981 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 3 edges. 3 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:54:54,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-02-27 12:54:54,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-02-27 12:54:54,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-02-27 12:54:54,991 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2019-02-27 12:54:55,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:54:55,374 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2019-02-27 12:54:55,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-02-27 12:54:55,375 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-02-27 12:54:55,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:54:55,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-02-27 12:54:55,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2019-02-27 12:54:55,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-02-27 12:54:55,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2019-02-27 12:54:55,386 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 14 transitions. [2019-02-27 12:54:55,428 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:54:55,437 INFO L225 Difference]: With dead ends: 14 [2019-02-27 12:54:55,437 INFO L226 Difference]: Without dead ends: 7 [2019-02-27 12:54:55,440 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-02-27 12:54:55,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-02-27 12:54:55,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2019-02-27 12:54:55,558 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:54:55,559 INFO L82 GeneralOperation]: Start isEquivalent. First operand 7 states. Second operand 6 states. [2019-02-27 12:54:55,559 INFO L74 IsIncluded]: Start isIncluded. First operand 7 states. Second operand 6 states. [2019-02-27 12:54:55,560 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 6 states. [2019-02-27 12:54:55,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:54:55,562 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-02-27 12:54:55,562 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-02-27 12:54:55,563 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:54:55,563 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:54:55,563 INFO L74 IsIncluded]: Start isIncluded. First operand 6 states. Second operand 7 states. [2019-02-27 12:54:55,564 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 7 states. [2019-02-27 12:54:55,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:54:55,565 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-02-27 12:54:55,565 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-02-27 12:54:55,566 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:54:55,566 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:54:55,566 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:54:55,566 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:54:55,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-02-27 12:54:55,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2019-02-27 12:54:55,569 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 3 [2019-02-27 12:54:55,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:54:55,570 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2019-02-27 12:54:55,570 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-02-27 12:54:55,571 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2019-02-27 12:54:55,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-02-27 12:54:55,571 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:54:55,571 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2019-02-27 12:54:55,572 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:54:55,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:54:55,572 INFO L82 PathProgramCache]: Analyzing trace with hash 28754210, now seen corresponding path program 1 times [2019-02-27 12:54:55,573 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:54:55,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:54:55,574 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 12:54:55,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:54:55,574 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:54:55,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:54:56,069 WARN L181 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 21 [2019-02-27 12:54:56,372 WARN L181 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 17 [2019-02-27 12:54:56,544 INFO L273 TraceCheckUtils]: 0: Hoare triple {54#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {56#(and (or (<= main_n 1) (<= main_i 0)) (or (<= 0 main_i) (< 1 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:54:56,545 INFO L273 TraceCheckUtils]: 1: Hoare triple {56#(and (or (<= main_n 1) (<= main_i 0)) (or (<= 0 main_i) (< 1 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {57#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= (* 4 main_n) main_i) (< 1 main_n)) (or (<= main_n 1) (<= main_i 4)))))} is VALID [2019-02-27 12:54:56,546 INFO L273 TraceCheckUtils]: 2: Hoare triple {57#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= (* 4 main_n) main_i) (< 1 main_n)) (or (<= main_n 1) (<= main_i 4)))))} assume i <= n * 4; {58#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 4) (< 1 main_n))))} is VALID [2019-02-27 12:54:56,547 INFO L273 TraceCheckUtils]: 3: Hoare triple {58#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 4) (< 1 main_n))))} assume a[i] != 23;i := i + 4; {59#(and (<= main_i 8) (< 1 main_n))} is VALID [2019-02-27 12:54:56,548 INFO L273 TraceCheckUtils]: 4: Hoare triple {59#(and (<= main_i 8) (< 1 main_n))} assume !(i <= n * 4); {55#false} is VALID [2019-02-27 12:54:56,550 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:54:56,550 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:54:56,550 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:54:56,551 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 6 with the following transitions: [2019-02-27 12:54:56,553 INFO L207 CegarAbsIntRunner]: [0], [4], [5], [6] [2019-02-27 12:54:56,591 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-02-27 12:54:56,591 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2019-02-27 12:54:56,744 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-02-27 12:54:56,745 INFO L272 AbstractInterpreter]: Visited 4 different actions 11 times. Merged at 3 different actions 7 times. Never widened. Performed 46 root evaluator evaluations with a maximum evaluation depth of 3. Performed 46 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2019-02-27 12:54:56,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:54:56,752 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-02-27 12:54:56,752 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:54:56,752 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:54:56,767 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 12:54:56,767 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-27 12:54:56,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:54:56,777 WARN L254 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 9 conjunts are in the unsatisfiable core [2019-02-27 12:54:56,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:54:56,800 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:54:56,875 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:54:56,879 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:54:56,896 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:54:56,896 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:54:56,899 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:54:56,899 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_5]. (and (= (store v_main_a_5 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-27 12:54:56,900 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:54:57,140 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:54:57,146 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:54:57,177 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:54:57,178 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:54:57,189 INFO L273 TraceCheckUtils]: 0: Hoare triple {54#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {63#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:54:57,190 INFO L273 TraceCheckUtils]: 1: Hoare triple {63#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {67#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:54:57,195 INFO L273 TraceCheckUtils]: 2: Hoare triple {67#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {71#(and (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:54:57,208 INFO L273 TraceCheckUtils]: 3: Hoare triple {71#(and (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {59#(and (<= main_i 8) (< 1 main_n))} is VALID [2019-02-27 12:54:57,212 INFO L273 TraceCheckUtils]: 4: Hoare triple {59#(and (<= main_i 8) (< 1 main_n))} assume !(i <= n * 4); {55#false} is VALID [2019-02-27 12:54:57,213 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:54:57,213 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:54:57,444 INFO L273 TraceCheckUtils]: 4: Hoare triple {78#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {55#false} is VALID [2019-02-27 12:54:57,448 INFO L273 TraceCheckUtils]: 3: Hoare triple {82#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {78#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:54:57,449 INFO L273 TraceCheckUtils]: 2: Hoare triple {86#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {82#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:54:57,450 INFO L273 TraceCheckUtils]: 1: Hoare triple {90#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {86#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:54:57,451 INFO L273 TraceCheckUtils]: 0: Hoare triple {54#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {90#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:54:57,451 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:54:57,556 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:54:57,556 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 11 [2019-02-27 12:54:57,556 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:54:57,557 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 5 [2019-02-27 12:54:57,558 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:54:57,558 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2019-02-27 12:54:57,583 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:54:57,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-02-27 12:54:57,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-02-27 12:54:57,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2019-02-27 12:54:57,585 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 9 states. [2019-02-27 12:54:57,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:54:57,778 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2019-02-27 12:54:57,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-02-27 12:54:57,779 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 5 [2019-02-27 12:54:57,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:54:57,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-02-27 12:54:57,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 10 transitions. [2019-02-27 12:54:57,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-02-27 12:54:57,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 10 transitions. [2019-02-27 12:54:57,782 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 10 transitions. [2019-02-27 12:54:57,837 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:54:57,838 INFO L225 Difference]: With dead ends: 10 [2019-02-27 12:54:57,839 INFO L226 Difference]: Without dead ends: 9 [2019-02-27 12:54:57,840 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2019-02-27 12:54:57,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-02-27 12:54:57,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2019-02-27 12:54:57,863 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:54:57,863 INFO L82 GeneralOperation]: Start isEquivalent. First operand 9 states. Second operand 8 states. [2019-02-27 12:54:57,866 INFO L74 IsIncluded]: Start isIncluded. First operand 9 states. Second operand 8 states. [2019-02-27 12:54:57,867 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 8 states. [2019-02-27 12:54:57,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:54:57,868 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-02-27 12:54:57,868 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-02-27 12:54:57,868 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:54:57,868 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:54:57,869 INFO L74 IsIncluded]: Start isIncluded. First operand 8 states. Second operand 9 states. [2019-02-27 12:54:57,871 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 9 states. [2019-02-27 12:54:57,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:54:57,873 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-02-27 12:54:57,873 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-02-27 12:54:57,873 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:54:57,873 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:54:57,873 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:54:57,873 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:54:57,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-02-27 12:54:57,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-02-27 12:54:57,876 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2019-02-27 12:54:57,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:54:57,876 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-02-27 12:54:57,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-02-27 12:54:57,877 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-02-27 12:54:57,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-02-27 12:54:57,878 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:54:57,878 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 1, 1] [2019-02-27 12:54:57,878 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:54:57,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:54:57,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1862993124, now seen corresponding path program 2 times [2019-02-27 12:54:57,879 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:54:57,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:54:57,881 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 12:54:57,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:54:57,881 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:54:57,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:54:58,250 INFO L273 TraceCheckUtils]: 0: Hoare triple {136#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {138#(and (or (<= main_n 2) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 2 main_n)))} is VALID [2019-02-27 12:54:58,251 INFO L273 TraceCheckUtils]: 1: Hoare triple {138#(and (or (<= main_n 2) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 2 main_n)))} assume a[i] != 23;i := i + 4; {139#(and (or (<= main_n 2) (<= main_i 4)) (or (< 2 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2019-02-27 12:54:58,252 INFO L273 TraceCheckUtils]: 2: Hoare triple {139#(and (or (<= main_n 2) (<= main_i 4)) (or (< 2 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume i <= n * 4; {139#(and (or (<= main_n 2) (<= main_i 4)) (or (< 2 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2019-02-27 12:54:58,256 INFO L273 TraceCheckUtils]: 3: Hoare triple {139#(and (or (<= main_n 2) (<= main_i 4)) (or (< 2 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume a[i] != 23;i := i + 4; {140#(and (or (<= main_i 8) (<= main_n 2)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 2 main_n)))} is VALID [2019-02-27 12:54:58,257 INFO L273 TraceCheckUtils]: 4: Hoare triple {140#(and (or (<= main_i 8) (<= main_n 2)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 2 main_n)))} assume i <= n * 4; {141#(and (or (< 2 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 8))} is VALID [2019-02-27 12:54:58,257 INFO L273 TraceCheckUtils]: 5: Hoare triple {141#(and (or (< 2 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 8))} assume a[i] != 23;i := i + 4; {142#(and (< 2 main_n) (<= main_i 12))} is VALID [2019-02-27 12:54:58,258 INFO L273 TraceCheckUtils]: 6: Hoare triple {142#(and (< 2 main_n) (<= main_i 12))} assume !(i <= n * 4); {137#false} is VALID [2019-02-27 12:54:58,259 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:54:58,259 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:54:58,259 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:54:58,259 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:54:58,259 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:54:58,259 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:54:58,260 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:54:58,270 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-27 12:54:58,270 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-27 12:54:58,281 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-02-27 12:54:58,282 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 12:54:58,282 WARN L254 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 11 conjunts are in the unsatisfiable core [2019-02-27 12:54:58,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:54:58,287 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:54:58,297 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:54:58,298 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:54:58,308 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:54:58,308 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:54:58,311 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:54:58,311 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_6]. (and (= (store v_main_a_6 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-27 12:54:58,311 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:54:58,440 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:54:58,448 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:54:58,452 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:54:58,453 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:54:58,515 INFO L273 TraceCheckUtils]: 0: Hoare triple {136#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {146#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:54:58,516 INFO L273 TraceCheckUtils]: 1: Hoare triple {146#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {150#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:54:58,516 INFO L273 TraceCheckUtils]: 2: Hoare triple {150#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {150#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:54:58,517 INFO L273 TraceCheckUtils]: 3: Hoare triple {150#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {157#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:54:58,519 INFO L273 TraceCheckUtils]: 4: Hoare triple {157#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {161#(and (= main_i 8) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:54:58,520 INFO L273 TraceCheckUtils]: 5: Hoare triple {161#(and (= main_i 8) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {142#(and (< 2 main_n) (<= main_i 12))} is VALID [2019-02-27 12:54:58,521 INFO L273 TraceCheckUtils]: 6: Hoare triple {142#(and (< 2 main_n) (<= main_i 12))} assume !(i <= n * 4); {137#false} is VALID [2019-02-27 12:54:58,522 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:54:58,522 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:54:58,796 INFO L273 TraceCheckUtils]: 6: Hoare triple {168#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {137#false} is VALID [2019-02-27 12:54:58,797 INFO L273 TraceCheckUtils]: 5: Hoare triple {172#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {168#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:54:58,798 INFO L273 TraceCheckUtils]: 4: Hoare triple {176#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {172#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:54:58,801 INFO L273 TraceCheckUtils]: 3: Hoare triple {180#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {176#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:54:58,802 INFO L273 TraceCheckUtils]: 2: Hoare triple {180#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {180#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:54:58,804 INFO L273 TraceCheckUtils]: 1: Hoare triple {187#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {180#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:54:58,806 INFO L273 TraceCheckUtils]: 0: Hoare triple {136#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {187#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:54:58,806 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:54:58,826 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:54:58,826 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 14 [2019-02-27 12:54:58,826 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:54:58,827 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 7 [2019-02-27 12:54:58,827 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:54:58,827 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2019-02-27 12:54:58,849 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:54:58,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-02-27 12:54:58,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-02-27 12:54:58,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2019-02-27 12:54:58,851 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 11 states. [2019-02-27 12:54:59,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:54:59,050 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2019-02-27 12:54:59,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-02-27 12:54:59,051 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 7 [2019-02-27 12:54:59,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:54:59,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-02-27 12:54:59,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12 transitions. [2019-02-27 12:54:59,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-02-27 12:54:59,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12 transitions. [2019-02-27 12:54:59,054 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 12 transitions. [2019-02-27 12:54:59,069 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:54:59,070 INFO L225 Difference]: With dead ends: 12 [2019-02-27 12:54:59,070 INFO L226 Difference]: Without dead ends: 11 [2019-02-27 12:54:59,071 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2019-02-27 12:54:59,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-02-27 12:54:59,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2019-02-27 12:54:59,082 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:54:59,082 INFO L82 GeneralOperation]: Start isEquivalent. First operand 11 states. Second operand 10 states. [2019-02-27 12:54:59,082 INFO L74 IsIncluded]: Start isIncluded. First operand 11 states. Second operand 10 states. [2019-02-27 12:54:59,083 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 10 states. [2019-02-27 12:54:59,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:54:59,084 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2019-02-27 12:54:59,084 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-02-27 12:54:59,084 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:54:59,085 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:54:59,085 INFO L74 IsIncluded]: Start isIncluded. First operand 10 states. Second operand 11 states. [2019-02-27 12:54:59,085 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 11 states. [2019-02-27 12:54:59,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:54:59,086 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2019-02-27 12:54:59,086 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-02-27 12:54:59,086 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:54:59,087 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:54:59,087 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:54:59,087 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:54:59,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-02-27 12:54:59,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-02-27 12:54:59,088 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7 [2019-02-27 12:54:59,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:54:59,088 INFO L480 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-02-27 12:54:59,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-02-27 12:54:59,089 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-02-27 12:54:59,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-02-27 12:54:59,089 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:54:59,089 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 1, 1] [2019-02-27 12:54:59,089 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:54:59,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:54:59,090 INFO L82 PathProgramCache]: Analyzing trace with hash -664969178, now seen corresponding path program 3 times [2019-02-27 12:54:59,090 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:54:59,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:54:59,091 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 12:54:59,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:54:59,091 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:54:59,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:54:59,515 INFO L273 TraceCheckUtils]: 0: Hoare triple {243#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {245#(and (or (<= main_i 0) (<= main_n 3)) (or (< 3 main_n) (<= 0 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:54:59,517 INFO L273 TraceCheckUtils]: 1: Hoare triple {245#(and (or (<= main_i 0) (<= main_n 3)) (or (< 3 main_n) (<= 0 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {246#(and (or (<= main_i 4) (<= main_n 3)) (or (< 3 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:54:59,518 INFO L273 TraceCheckUtils]: 2: Hoare triple {246#(and (or (<= main_i 4) (<= main_n 3)) (or (< 3 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {246#(and (or (<= main_i 4) (<= main_n 3)) (or (< 3 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:54:59,519 INFO L273 TraceCheckUtils]: 3: Hoare triple {246#(and (or (<= main_i 4) (<= main_n 3)) (or (< 3 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {247#(and (or (<= main_i 8) (<= main_n 3)) (= 23 (select main_a (* 4 main_n))) (or (< 3 main_n) (<= 8 main_i)))} is VALID [2019-02-27 12:54:59,521 INFO L273 TraceCheckUtils]: 4: Hoare triple {247#(and (or (<= main_i 8) (<= main_n 3)) (= 23 (select main_a (* 4 main_n))) (or (< 3 main_n) (<= 8 main_i)))} assume i <= n * 4; {247#(and (or (<= main_i 8) (<= main_n 3)) (= 23 (select main_a (* 4 main_n))) (or (< 3 main_n) (<= 8 main_i)))} is VALID [2019-02-27 12:54:59,522 INFO L273 TraceCheckUtils]: 5: Hoare triple {247#(and (or (<= main_i 8) (<= main_n 3)) (= 23 (select main_a (* 4 main_n))) (or (< 3 main_n) (<= 8 main_i)))} assume a[i] != 23;i := i + 4; {248#(and (or (= (* 4 main_n) main_i) (and (or (< 3 main_n) (<= (* 4 main_n) main_i)) (or (<= main_n 3) (<= main_i 12)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-02-27 12:54:59,525 INFO L273 TraceCheckUtils]: 6: Hoare triple {248#(and (or (= (* 4 main_n) main_i) (and (or (< 3 main_n) (<= (* 4 main_n) main_i)) (or (<= main_n 3) (<= main_i 12)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume i <= n * 4; {249#(and (or (= (* 4 main_n) main_i) (and (< 3 main_n) (<= main_i 12))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-02-27 12:54:59,527 INFO L273 TraceCheckUtils]: 7: Hoare triple {249#(and (or (= (* 4 main_n) main_i) (and (< 3 main_n) (<= main_i 12))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume a[i] != 23;i := i + 4; {250#(and (<= main_i 16) (<= 4 main_n))} is VALID [2019-02-27 12:54:59,531 INFO L273 TraceCheckUtils]: 8: Hoare triple {250#(and (<= main_i 16) (<= 4 main_n))} assume !(i <= n * 4); {244#false} is VALID [2019-02-27 12:54:59,532 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:54:59,532 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:54:59,533 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:54:59,533 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:54:59,533 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:54:59,533 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:54:59,533 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:54:59,547 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-27 12:54:59,548 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-27 12:54:59,553 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-27 12:54:59,553 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 12:54:59,554 WARN L254 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 13 conjunts are in the unsatisfiable core [2019-02-27 12:54:59,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:54:59,558 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:54:59,585 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:54:59,587 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:54:59,595 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:54:59,595 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:54:59,599 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:54:59,599 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_7]. (and (= main_i 0) (= (store v_main_a_7 (* 4 main_n) 23) main_a)) [2019-02-27 12:54:59,599 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:54:59,741 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:54:59,743 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:54:59,750 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:54:59,750 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:54:59,763 INFO L273 TraceCheckUtils]: 0: Hoare triple {243#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {254#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:54:59,769 INFO L273 TraceCheckUtils]: 1: Hoare triple {254#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {258#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:54:59,770 INFO L273 TraceCheckUtils]: 2: Hoare triple {258#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {258#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:54:59,770 INFO L273 TraceCheckUtils]: 3: Hoare triple {258#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {265#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:54:59,773 INFO L273 TraceCheckUtils]: 4: Hoare triple {265#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {265#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:54:59,774 INFO L273 TraceCheckUtils]: 5: Hoare triple {265#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {272#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:54:59,775 INFO L273 TraceCheckUtils]: 6: Hoare triple {272#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {276#(and (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:54:59,777 INFO L273 TraceCheckUtils]: 7: Hoare triple {276#(and (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {250#(and (<= main_i 16) (<= 4 main_n))} is VALID [2019-02-27 12:54:59,778 INFO L273 TraceCheckUtils]: 8: Hoare triple {250#(and (<= main_i 16) (<= 4 main_n))} assume !(i <= n * 4); {244#false} is VALID [2019-02-27 12:54:59,779 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:54:59,779 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:55:00,028 INFO L273 TraceCheckUtils]: 8: Hoare triple {283#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {244#false} is VALID [2019-02-27 12:55:00,029 INFO L273 TraceCheckUtils]: 7: Hoare triple {287#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {283#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:55:00,030 INFO L273 TraceCheckUtils]: 6: Hoare triple {291#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {287#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:55:00,031 INFO L273 TraceCheckUtils]: 5: Hoare triple {295#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {291#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:55:00,032 INFO L273 TraceCheckUtils]: 4: Hoare triple {295#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {295#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:55:00,033 INFO L273 TraceCheckUtils]: 3: Hoare triple {302#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {295#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:55:00,036 INFO L273 TraceCheckUtils]: 2: Hoare triple {302#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {302#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:55:00,038 INFO L273 TraceCheckUtils]: 1: Hoare triple {309#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {302#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:55:00,039 INFO L273 TraceCheckUtils]: 0: Hoare triple {243#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {309#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:55:00,040 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:00,064 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:55:00,064 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 17 [2019-02-27 12:55:00,065 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:55:00,065 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 9 [2019-02-27 12:55:00,065 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:55:00,065 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states. [2019-02-27 12:55:00,085 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:55:00,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-02-27 12:55:00,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-02-27 12:55:00,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2019-02-27 12:55:00,087 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 13 states. [2019-02-27 12:55:00,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:00,302 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2019-02-27 12:55:00,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-02-27 12:55:00,302 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 9 [2019-02-27 12:55:00,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:55:00,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-02-27 12:55:00,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 14 transitions. [2019-02-27 12:55:00,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-02-27 12:55:00,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 14 transitions. [2019-02-27 12:55:00,305 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 14 transitions. [2019-02-27 12:55:00,372 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:55:00,373 INFO L225 Difference]: With dead ends: 14 [2019-02-27 12:55:00,373 INFO L226 Difference]: Without dead ends: 13 [2019-02-27 12:55:00,374 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2019-02-27 12:55:00,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-02-27 12:55:00,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2019-02-27 12:55:00,415 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:55:00,415 INFO L82 GeneralOperation]: Start isEquivalent. First operand 13 states. Second operand 12 states. [2019-02-27 12:55:00,415 INFO L74 IsIncluded]: Start isIncluded. First operand 13 states. Second operand 12 states. [2019-02-27 12:55:00,415 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 12 states. [2019-02-27 12:55:00,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:00,417 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2019-02-27 12:55:00,417 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-02-27 12:55:00,418 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:55:00,418 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:55:00,418 INFO L74 IsIncluded]: Start isIncluded. First operand 12 states. Second operand 13 states. [2019-02-27 12:55:00,418 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 13 states. [2019-02-27 12:55:00,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:00,420 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2019-02-27 12:55:00,420 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-02-27 12:55:00,420 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:55:00,421 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:55:00,421 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:55:00,421 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:55:00,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-02-27 12:55:00,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-02-27 12:55:00,422 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2019-02-27 12:55:00,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:55:00,422 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-02-27 12:55:00,422 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-02-27 12:55:00,422 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-02-27 12:55:00,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-02-27 12:55:00,423 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:55:00,423 INFO L402 BasicCegarLoop]: trace histogram [5, 4, 1, 1] [2019-02-27 12:55:00,423 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:55:00,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:55:00,424 INFO L82 PathProgramCache]: Analyzing trace with hash 914748136, now seen corresponding path program 4 times [2019-02-27 12:55:00,424 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:55:00,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:55:00,425 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 12:55:00,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:55:00,425 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:55:00,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:00,809 INFO L273 TraceCheckUtils]: 0: Hoare triple {375#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {377#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 4 main_n)) (or (<= main_i 0) (<= main_n 4)))} is VALID [2019-02-27 12:55:00,811 INFO L273 TraceCheckUtils]: 1: Hoare triple {377#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 4 main_n)) (or (<= main_i 0) (<= main_n 4)))} assume a[i] != 23;i := i + 4; {378#(and (or (<= main_i 4) (<= main_n 4)) (or (< 4 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2019-02-27 12:55:00,812 INFO L273 TraceCheckUtils]: 2: Hoare triple {378#(and (or (<= main_i 4) (<= main_n 4)) (or (< 4 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume i <= n * 4; {378#(and (or (<= main_i 4) (<= main_n 4)) (or (< 4 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2019-02-27 12:55:00,813 INFO L273 TraceCheckUtils]: 3: Hoare triple {378#(and (or (<= main_i 4) (<= main_n 4)) (or (< 4 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume a[i] != 23;i := i + 4; {379#(and (or (<= main_i 8) (<= main_n 4)) (or (< 4 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:00,814 INFO L273 TraceCheckUtils]: 4: Hoare triple {379#(and (or (<= main_i 8) (<= main_n 4)) (or (< 4 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {379#(and (or (<= main_i 8) (<= main_n 4)) (or (< 4 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:00,815 INFO L273 TraceCheckUtils]: 5: Hoare triple {379#(and (or (<= main_i 8) (<= main_n 4)) (or (< 4 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {380#(and (or (<= main_n 4) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 4 main_n)))} is VALID [2019-02-27 12:55:00,816 INFO L273 TraceCheckUtils]: 6: Hoare triple {380#(and (or (<= main_n 4) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 4 main_n)))} assume i <= n * 4; {380#(and (or (<= main_n 4) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 4 main_n)))} is VALID [2019-02-27 12:55:00,818 INFO L273 TraceCheckUtils]: 7: Hoare triple {380#(and (or (<= main_n 4) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 4 main_n)))} assume a[i] != 23;i := i + 4; {381#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 4 main_n)) (or (<= main_i 16) (<= main_n 4)))} is VALID [2019-02-27 12:55:00,819 INFO L273 TraceCheckUtils]: 8: Hoare triple {381#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 4 main_n)) (or (<= main_i 16) (<= main_n 4)))} assume i <= n * 4; {382#(and (or (< 4 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 16))} is VALID [2019-02-27 12:55:00,820 INFO L273 TraceCheckUtils]: 9: Hoare triple {382#(and (or (< 4 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 16))} assume a[i] != 23;i := i + 4; {383#(and (<= main_i 20) (<= 5 main_n))} is VALID [2019-02-27 12:55:00,821 INFO L273 TraceCheckUtils]: 10: Hoare triple {383#(and (<= main_i 20) (<= 5 main_n))} assume !(i <= n * 4); {376#false} is VALID [2019-02-27 12:55:00,823 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:00,823 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:55:00,823 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:55:00,824 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:55:00,824 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:55:00,824 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:55:00,824 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:55:00,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 12:55:00,839 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-27 12:55:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:00,846 WARN L254 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 15 conjunts are in the unsatisfiable core [2019-02-27 12:55:00,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:00,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:55:00,952 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:55:00,956 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:55:00,967 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:55:00,967 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:55:00,969 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:55:00,969 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_8]. (and (= main_i 0) (= main_a (store v_main_a_8 (* 4 main_n) 23))) [2019-02-27 12:55:00,969 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:55:01,170 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:55:01,183 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:55:01,188 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:55:01,189 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:55:01,205 INFO L273 TraceCheckUtils]: 0: Hoare triple {375#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {387#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:01,206 INFO L273 TraceCheckUtils]: 1: Hoare triple {387#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {391#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:55:01,206 INFO L273 TraceCheckUtils]: 2: Hoare triple {391#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {391#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:55:01,207 INFO L273 TraceCheckUtils]: 3: Hoare triple {391#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {398#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:01,208 INFO L273 TraceCheckUtils]: 4: Hoare triple {398#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {398#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:01,209 INFO L273 TraceCheckUtils]: 5: Hoare triple {398#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {405#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:55:01,210 INFO L273 TraceCheckUtils]: 6: Hoare triple {405#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {405#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:55:01,211 INFO L273 TraceCheckUtils]: 7: Hoare triple {405#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {412#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:01,212 INFO L273 TraceCheckUtils]: 8: Hoare triple {412#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {416#(and (= main_i 16) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:01,213 INFO L273 TraceCheckUtils]: 9: Hoare triple {416#(and (= main_i 16) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {383#(and (<= main_i 20) (<= 5 main_n))} is VALID [2019-02-27 12:55:01,214 INFO L273 TraceCheckUtils]: 10: Hoare triple {383#(and (<= main_i 20) (<= 5 main_n))} assume !(i <= n * 4); {376#false} is VALID [2019-02-27 12:55:01,215 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:01,215 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:55:01,660 INFO L273 TraceCheckUtils]: 10: Hoare triple {423#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {376#false} is VALID [2019-02-27 12:55:01,661 INFO L273 TraceCheckUtils]: 9: Hoare triple {427#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {423#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:55:01,662 INFO L273 TraceCheckUtils]: 8: Hoare triple {431#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {427#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:55:01,663 INFO L273 TraceCheckUtils]: 7: Hoare triple {435#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {431#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:55:01,665 INFO L273 TraceCheckUtils]: 6: Hoare triple {435#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {435#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:55:01,666 INFO L273 TraceCheckUtils]: 5: Hoare triple {442#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {435#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:55:01,668 INFO L273 TraceCheckUtils]: 4: Hoare triple {442#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {442#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:55:01,670 INFO L273 TraceCheckUtils]: 3: Hoare triple {449#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {442#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:55:01,671 INFO L273 TraceCheckUtils]: 2: Hoare triple {449#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {449#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:55:01,673 INFO L273 TraceCheckUtils]: 1: Hoare triple {456#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {449#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:55:01,674 INFO L273 TraceCheckUtils]: 0: Hoare triple {375#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {456#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:55:01,676 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:01,695 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:55:01,695 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 20 [2019-02-27 12:55:01,695 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:55:01,696 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 11 [2019-02-27 12:55:01,696 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:55:01,696 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 15 states. [2019-02-27 12:55:01,731 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:55:01,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-02-27 12:55:01,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-02-27 12:55:01,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2019-02-27 12:55:01,733 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 15 states. [2019-02-27 12:55:02,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:02,222 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2019-02-27 12:55:02,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-02-27 12:55:02,222 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 11 [2019-02-27 12:55:02,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:55:02,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-02-27 12:55:02,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 16 transitions. [2019-02-27 12:55:02,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-02-27 12:55:02,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 16 transitions. [2019-02-27 12:55:02,225 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 16 transitions. [2019-02-27 12:55:02,245 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:55:02,246 INFO L225 Difference]: With dead ends: 16 [2019-02-27 12:55:02,246 INFO L226 Difference]: Without dead ends: 15 [2019-02-27 12:55:02,247 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2019-02-27 12:55:02,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-02-27 12:55:02,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2019-02-27 12:55:02,262 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:55:02,262 INFO L82 GeneralOperation]: Start isEquivalent. First operand 15 states. Second operand 14 states. [2019-02-27 12:55:02,262 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 14 states. [2019-02-27 12:55:02,262 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 14 states. [2019-02-27 12:55:02,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:02,264 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2019-02-27 12:55:02,264 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-02-27 12:55:02,265 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:55:02,265 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:55:02,265 INFO L74 IsIncluded]: Start isIncluded. First operand 14 states. Second operand 15 states. [2019-02-27 12:55:02,265 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 15 states. [2019-02-27 12:55:02,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:02,266 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2019-02-27 12:55:02,266 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-02-27 12:55:02,266 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:55:02,267 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:55:02,267 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:55:02,267 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:55:02,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-02-27 12:55:02,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2019-02-27 12:55:02,268 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2019-02-27 12:55:02,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:55:02,268 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2019-02-27 12:55:02,268 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-02-27 12:55:02,268 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2019-02-27 12:55:02,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-02-27 12:55:02,269 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:55:02,269 INFO L402 BasicCegarLoop]: trace histogram [6, 5, 1, 1] [2019-02-27 12:55:02,269 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:55:02,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:55:02,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1395335894, now seen corresponding path program 5 times [2019-02-27 12:55:02,269 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:55:02,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:55:02,270 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 12:55:02,271 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:55:02,271 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:55:02,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:02,664 INFO L273 TraceCheckUtils]: 0: Hoare triple {532#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {534#(and (or (<= main_n 5) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 5 main_n)))} is VALID [2019-02-27 12:55:02,665 INFO L273 TraceCheckUtils]: 1: Hoare triple {534#(and (or (<= main_n 5) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 5 main_n)))} assume a[i] != 23;i := i + 4; {535#(and (or (<= main_n 5) (<= main_i 4)) (or (< 5 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2019-02-27 12:55:02,666 INFO L273 TraceCheckUtils]: 2: Hoare triple {535#(and (or (<= main_n 5) (<= main_i 4)) (or (< 5 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume i <= n * 4; {535#(and (or (<= main_n 5) (<= main_i 4)) (or (< 5 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2019-02-27 12:55:02,667 INFO L273 TraceCheckUtils]: 3: Hoare triple {535#(and (or (<= main_n 5) (<= main_i 4)) (or (< 5 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume a[i] != 23;i := i + 4; {536#(and (or (<= main_n 5) (<= main_i 8)) (or (< 5 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:02,668 INFO L273 TraceCheckUtils]: 4: Hoare triple {536#(and (or (<= main_n 5) (<= main_i 8)) (or (< 5 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {536#(and (or (<= main_n 5) (<= main_i 8)) (or (< 5 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:02,669 INFO L273 TraceCheckUtils]: 5: Hoare triple {536#(and (or (<= main_n 5) (<= main_i 8)) (or (< 5 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {537#(and (or (<= main_n 5) (<= main_i 12)) (or (< 5 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:02,670 INFO L273 TraceCheckUtils]: 6: Hoare triple {537#(and (or (<= main_n 5) (<= main_i 12)) (or (< 5 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {537#(and (or (<= main_n 5) (<= main_i 12)) (or (< 5 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:02,671 INFO L273 TraceCheckUtils]: 7: Hoare triple {537#(and (or (<= main_n 5) (<= main_i 12)) (or (< 5 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {538#(and (or (< 5 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 5) (<= main_i 16)))} is VALID [2019-02-27 12:55:02,677 INFO L273 TraceCheckUtils]: 8: Hoare triple {538#(and (or (< 5 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 5) (<= main_i 16)))} assume i <= n * 4; {538#(and (or (< 5 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 5) (<= main_i 16)))} is VALID [2019-02-27 12:55:02,678 INFO L273 TraceCheckUtils]: 9: Hoare triple {538#(and (or (< 5 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 5) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {539#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 5 main_n)) (or (<= main_n 5) (<= main_i 20)))} is VALID [2019-02-27 12:55:02,679 INFO L273 TraceCheckUtils]: 10: Hoare triple {539#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 5 main_n)) (or (<= main_n 5) (<= main_i 20)))} assume i <= n * 4; {540#(and (or (< 5 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 20))} is VALID [2019-02-27 12:55:02,679 INFO L273 TraceCheckUtils]: 11: Hoare triple {540#(and (or (< 5 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 20))} assume a[i] != 23;i := i + 4; {541#(and (< 5 main_n) (<= main_i 24))} is VALID [2019-02-27 12:55:02,681 INFO L273 TraceCheckUtils]: 12: Hoare triple {541#(and (< 5 main_n) (<= main_i 24))} assume !(i <= n * 4); {533#false} is VALID [2019-02-27 12:55:02,682 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:02,683 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:55:02,683 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:55:02,683 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:55:02,683 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:55:02,684 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:55:02,684 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:55:02,700 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-27 12:55:02,701 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-27 12:55:02,729 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2019-02-27 12:55:02,729 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 12:55:02,730 WARN L254 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 17 conjunts are in the unsatisfiable core [2019-02-27 12:55:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:02,735 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:55:02,761 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:55:02,785 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:55:02,856 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:55:02,856 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:55:02,858 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:55:02,858 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_9]. (and (= (store v_main_a_9 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-27 12:55:02,859 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:55:03,023 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:55:03,026 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:55:03,031 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:55:03,032 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:55:03,035 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:55:03,035 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= 23 (select main_a 20))) (<= main_i 24) (<= 20 .cse0) (= 23 (select main_a .cse0)))) [2019-02-27 12:55:03,035 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 20 .cse0)) (<= main_i 24) (<= 20 .cse0))) [2019-02-27 12:55:03,046 INFO L273 TraceCheckUtils]: 0: Hoare triple {532#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {545#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:03,047 INFO L273 TraceCheckUtils]: 1: Hoare triple {545#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {549#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:55:03,047 INFO L273 TraceCheckUtils]: 2: Hoare triple {549#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {549#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:55:03,048 INFO L273 TraceCheckUtils]: 3: Hoare triple {549#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {556#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:03,049 INFO L273 TraceCheckUtils]: 4: Hoare triple {556#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {556#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:03,050 INFO L273 TraceCheckUtils]: 5: Hoare triple {556#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {563#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:55:03,051 INFO L273 TraceCheckUtils]: 6: Hoare triple {563#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {563#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:55:03,051 INFO L273 TraceCheckUtils]: 7: Hoare triple {563#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {570#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:03,052 INFO L273 TraceCheckUtils]: 8: Hoare triple {570#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {570#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:03,053 INFO L273 TraceCheckUtils]: 9: Hoare triple {570#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {577#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:03,068 INFO L273 TraceCheckUtils]: 10: Hoare triple {577#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {581#(and (= main_i 20) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:03,069 INFO L273 TraceCheckUtils]: 11: Hoare triple {581#(and (= main_i 20) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {541#(and (< 5 main_n) (<= main_i 24))} is VALID [2019-02-27 12:55:03,070 INFO L273 TraceCheckUtils]: 12: Hoare triple {541#(and (< 5 main_n) (<= main_i 24))} assume !(i <= n * 4); {533#false} is VALID [2019-02-27 12:55:03,070 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:03,070 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:55:03,382 INFO L273 TraceCheckUtils]: 12: Hoare triple {588#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {533#false} is VALID [2019-02-27 12:55:03,383 INFO L273 TraceCheckUtils]: 11: Hoare triple {592#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {588#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:55:03,384 INFO L273 TraceCheckUtils]: 10: Hoare triple {596#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {592#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:55:03,387 INFO L273 TraceCheckUtils]: 9: Hoare triple {600#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {596#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:55:03,387 INFO L273 TraceCheckUtils]: 8: Hoare triple {600#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {600#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:55:03,388 INFO L273 TraceCheckUtils]: 7: Hoare triple {607#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {600#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:55:03,389 INFO L273 TraceCheckUtils]: 6: Hoare triple {607#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {607#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:55:03,389 INFO L273 TraceCheckUtils]: 5: Hoare triple {614#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {607#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:55:03,390 INFO L273 TraceCheckUtils]: 4: Hoare triple {614#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {614#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:55:03,390 INFO L273 TraceCheckUtils]: 3: Hoare triple {621#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {614#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:55:03,391 INFO L273 TraceCheckUtils]: 2: Hoare triple {621#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {621#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:55:03,392 INFO L273 TraceCheckUtils]: 1: Hoare triple {628#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {621#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:55:03,393 INFO L273 TraceCheckUtils]: 0: Hoare triple {532#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {628#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:55:03,394 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:03,414 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:55:03,414 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 23 [2019-02-27 12:55:03,414 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:55:03,414 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 13 [2019-02-27 12:55:03,414 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:55:03,415 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states. [2019-02-27 12:55:03,445 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:55:03,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-02-27 12:55:03,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-02-27 12:55:03,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2019-02-27 12:55:03,446 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 17 states. [2019-02-27 12:55:03,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:03,862 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-02-27 12:55:03,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-02-27 12:55:03,862 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 13 [2019-02-27 12:55:03,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:55:03,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-02-27 12:55:03,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 18 transitions. [2019-02-27 12:55:03,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-02-27 12:55:03,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 18 transitions. [2019-02-27 12:55:03,865 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states and 18 transitions. [2019-02-27 12:55:03,887 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:55:03,889 INFO L225 Difference]: With dead ends: 18 [2019-02-27 12:55:03,889 INFO L226 Difference]: Without dead ends: 17 [2019-02-27 12:55:03,890 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2019-02-27 12:55:03,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-02-27 12:55:03,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-02-27 12:55:03,906 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:55:03,906 INFO L82 GeneralOperation]: Start isEquivalent. First operand 17 states. Second operand 16 states. [2019-02-27 12:55:03,906 INFO L74 IsIncluded]: Start isIncluded. First operand 17 states. Second operand 16 states. [2019-02-27 12:55:03,907 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 16 states. [2019-02-27 12:55:03,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:03,908 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2019-02-27 12:55:03,908 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2019-02-27 12:55:03,909 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:55:03,909 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:55:03,909 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand 17 states. [2019-02-27 12:55:03,909 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 17 states. [2019-02-27 12:55:03,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:03,910 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2019-02-27 12:55:03,910 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2019-02-27 12:55:03,911 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:55:03,911 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:55:03,911 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:55:03,911 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:55:03,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-02-27 12:55:03,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-02-27 12:55:03,912 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2019-02-27 12:55:03,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:55:03,912 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-02-27 12:55:03,913 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-02-27 12:55:03,913 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-02-27 12:55:03,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-02-27 12:55:03,913 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:55:03,913 INFO L402 BasicCegarLoop]: trace histogram [7, 6, 1, 1] [2019-02-27 12:55:03,914 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:55:03,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:55:03,914 INFO L82 PathProgramCache]: Analyzing trace with hash -887996692, now seen corresponding path program 6 times [2019-02-27 12:55:03,914 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:55:03,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:55:03,915 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 12:55:03,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:55:03,915 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:55:03,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:04,495 INFO L273 TraceCheckUtils]: 0: Hoare triple {714#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {716#(and (or (<= main_n 6) (<= main_i 0)) (or (< 6 main_n) (<= 0 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:04,496 INFO L273 TraceCheckUtils]: 1: Hoare triple {716#(and (or (<= main_n 6) (<= main_i 0)) (or (< 6 main_n) (<= 0 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {717#(and (or (< 6 main_n) (<= 4 main_i)) (or (<= main_n 6) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:04,497 INFO L273 TraceCheckUtils]: 2: Hoare triple {717#(and (or (< 6 main_n) (<= 4 main_i)) (or (<= main_n 6) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {717#(and (or (< 6 main_n) (<= 4 main_i)) (or (<= main_n 6) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:04,498 INFO L273 TraceCheckUtils]: 3: Hoare triple {717#(and (or (< 6 main_n) (<= 4 main_i)) (or (<= main_n 6) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {718#(and (or (<= main_n 6) (<= main_i 8)) (or (< 6 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:04,499 INFO L273 TraceCheckUtils]: 4: Hoare triple {718#(and (or (<= main_n 6) (<= main_i 8)) (or (< 6 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {718#(and (or (<= main_n 6) (<= main_i 8)) (or (< 6 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:04,501 INFO L273 TraceCheckUtils]: 5: Hoare triple {718#(and (or (<= main_n 6) (<= main_i 8)) (or (< 6 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {719#(and (or (<= main_n 6) (<= main_i 12)) (or (< 6 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:04,502 INFO L273 TraceCheckUtils]: 6: Hoare triple {719#(and (or (<= main_n 6) (<= main_i 12)) (or (< 6 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {719#(and (or (<= main_n 6) (<= main_i 12)) (or (< 6 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:04,503 INFO L273 TraceCheckUtils]: 7: Hoare triple {719#(and (or (<= main_n 6) (<= main_i 12)) (or (< 6 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {720#(and (or (< 6 main_n) (<= 16 main_i)) (or (<= main_n 6) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:04,504 INFO L273 TraceCheckUtils]: 8: Hoare triple {720#(and (or (< 6 main_n) (<= 16 main_i)) (or (<= main_n 6) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {720#(and (or (< 6 main_n) (<= 16 main_i)) (or (<= main_n 6) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:04,505 INFO L273 TraceCheckUtils]: 9: Hoare triple {720#(and (or (< 6 main_n) (<= 16 main_i)) (or (<= main_n 6) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {721#(and (or (< 6 main_n) (<= 20 main_i)) (or (<= main_n 6) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:04,506 INFO L273 TraceCheckUtils]: 10: Hoare triple {721#(and (or (< 6 main_n) (<= 20 main_i)) (or (<= main_n 6) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {721#(and (or (< 6 main_n) (<= 20 main_i)) (or (<= main_n 6) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:04,507 INFO L273 TraceCheckUtils]: 11: Hoare triple {721#(and (or (< 6 main_n) (<= 20 main_i)) (or (<= main_n 6) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {722#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 6) (<= main_i 24)) (or (< 6 main_n) (<= (* 4 main_n) main_i)))))} is VALID [2019-02-27 12:55:04,509 INFO L273 TraceCheckUtils]: 12: Hoare triple {722#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 6) (<= main_i 24)) (or (< 6 main_n) (<= (* 4 main_n) main_i)))))} assume i <= n * 4; {723#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 6 main_n) (<= main_i 24))))} is VALID [2019-02-27 12:55:04,510 INFO L273 TraceCheckUtils]: 13: Hoare triple {723#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 6 main_n) (<= main_i 24))))} assume a[i] != 23;i := i + 4; {724#(and (<= 7 main_n) (<= main_i 28))} is VALID [2019-02-27 12:55:04,511 INFO L273 TraceCheckUtils]: 14: Hoare triple {724#(and (<= 7 main_n) (<= main_i 28))} assume !(i <= n * 4); {715#false} is VALID [2019-02-27 12:55:04,513 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:04,514 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:55:04,514 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:55:04,514 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:55:04,514 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:55:04,515 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:55:04,515 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:55:04,529 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-27 12:55:04,529 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-27 12:55:04,537 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-27 12:55:04,537 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 12:55:04,537 WARN L254 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 19 conjunts are in the unsatisfiable core [2019-02-27 12:55:04,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:04,541 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:55:04,549 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:55:04,551 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:55:04,559 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:55:04,559 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:55:04,561 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:55:04,561 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_10]. (and (= main_i 0) (= main_a (store v_main_a_10 (* 4 main_n) 23))) [2019-02-27 12:55:04,561 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:55:04,855 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:55:04,887 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:55:04,950 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:55:04,951 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:55:04,952 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:55:04,953 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= 23 (select main_a 24))) (<= 24 .cse0) (= 23 (select main_a .cse0)) (<= main_i 28))) [2019-02-27 12:55:04,953 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 24 .cse0) (not (= 24 .cse0)) (<= main_i 28))) [2019-02-27 12:55:04,968 INFO L273 TraceCheckUtils]: 0: Hoare triple {714#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {728#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:04,969 INFO L273 TraceCheckUtils]: 1: Hoare triple {728#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {732#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:55:04,970 INFO L273 TraceCheckUtils]: 2: Hoare triple {732#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {732#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:55:04,971 INFO L273 TraceCheckUtils]: 3: Hoare triple {732#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {739#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:04,973 INFO L273 TraceCheckUtils]: 4: Hoare triple {739#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {739#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:04,976 INFO L273 TraceCheckUtils]: 5: Hoare triple {739#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {746#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:55:04,976 INFO L273 TraceCheckUtils]: 6: Hoare triple {746#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {746#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:55:04,977 INFO L273 TraceCheckUtils]: 7: Hoare triple {746#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {753#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:04,977 INFO L273 TraceCheckUtils]: 8: Hoare triple {753#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {753#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:04,978 INFO L273 TraceCheckUtils]: 9: Hoare triple {753#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {760#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:04,979 INFO L273 TraceCheckUtils]: 10: Hoare triple {760#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {760#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:04,979 INFO L273 TraceCheckUtils]: 11: Hoare triple {760#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {767#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:04,980 INFO L273 TraceCheckUtils]: 12: Hoare triple {767#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {771#(and (= main_i 24) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:04,980 INFO L273 TraceCheckUtils]: 13: Hoare triple {771#(and (= main_i 24) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {724#(and (<= 7 main_n) (<= main_i 28))} is VALID [2019-02-27 12:55:04,981 INFO L273 TraceCheckUtils]: 14: Hoare triple {724#(and (<= 7 main_n) (<= main_i 28))} assume !(i <= n * 4); {715#false} is VALID [2019-02-27 12:55:04,983 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:04,983 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:55:05,505 INFO L273 TraceCheckUtils]: 14: Hoare triple {778#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {715#false} is VALID [2019-02-27 12:55:05,507 INFO L273 TraceCheckUtils]: 13: Hoare triple {782#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {778#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:55:05,508 INFO L273 TraceCheckUtils]: 12: Hoare triple {786#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {782#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:55:05,510 INFO L273 TraceCheckUtils]: 11: Hoare triple {790#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {786#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:55:05,510 INFO L273 TraceCheckUtils]: 10: Hoare triple {790#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {790#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:55:05,511 INFO L273 TraceCheckUtils]: 9: Hoare triple {797#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {790#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:55:05,512 INFO L273 TraceCheckUtils]: 8: Hoare triple {797#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {797#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:55:05,513 INFO L273 TraceCheckUtils]: 7: Hoare triple {804#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {797#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:55:05,514 INFO L273 TraceCheckUtils]: 6: Hoare triple {804#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {804#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:55:05,515 INFO L273 TraceCheckUtils]: 5: Hoare triple {811#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {804#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:55:05,516 INFO L273 TraceCheckUtils]: 4: Hoare triple {811#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {811#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:55:05,517 INFO L273 TraceCheckUtils]: 3: Hoare triple {818#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {811#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:55:05,517 INFO L273 TraceCheckUtils]: 2: Hoare triple {818#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {818#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:55:05,518 INFO L273 TraceCheckUtils]: 1: Hoare triple {825#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {818#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:55:05,519 INFO L273 TraceCheckUtils]: 0: Hoare triple {714#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {825#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:55:05,521 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:05,540 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:55:05,541 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 26 [2019-02-27 12:55:05,541 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:55:05,541 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 15 [2019-02-27 12:55:05,541 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:55:05,542 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 19 states. [2019-02-27 12:55:05,600 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:55:05,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-02-27 12:55:05,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-02-27 12:55:05,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=622, Unknown=0, NotChecked=0, Total=756 [2019-02-27 12:55:05,601 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 19 states. [2019-02-27 12:55:06,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:06,099 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2019-02-27 12:55:06,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-02-27 12:55:06,099 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 15 [2019-02-27 12:55:06,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:55:06,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-02-27 12:55:06,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 20 transitions. [2019-02-27 12:55:06,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-02-27 12:55:06,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 20 transitions. [2019-02-27 12:55:06,103 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states and 20 transitions. [2019-02-27 12:55:06,130 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:55:06,131 INFO L225 Difference]: With dead ends: 20 [2019-02-27 12:55:06,132 INFO L226 Difference]: Without dead ends: 19 [2019-02-27 12:55:06,133 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=134, Invalid=622, Unknown=0, NotChecked=0, Total=756 [2019-02-27 12:55:06,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-02-27 12:55:06,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2019-02-27 12:55:06,163 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:55:06,164 INFO L82 GeneralOperation]: Start isEquivalent. First operand 19 states. Second operand 18 states. [2019-02-27 12:55:06,164 INFO L74 IsIncluded]: Start isIncluded. First operand 19 states. Second operand 18 states. [2019-02-27 12:55:06,164 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 18 states. [2019-02-27 12:55:06,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:06,166 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-02-27 12:55:06,166 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-02-27 12:55:06,167 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:55:06,167 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:55:06,167 INFO L74 IsIncluded]: Start isIncluded. First operand 18 states. Second operand 19 states. [2019-02-27 12:55:06,167 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 19 states. [2019-02-27 12:55:06,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:06,168 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-02-27 12:55:06,168 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-02-27 12:55:06,168 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:55:06,168 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:55:06,169 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:55:06,169 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:55:06,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-02-27 12:55:06,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-02-27 12:55:06,170 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2019-02-27 12:55:06,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:55:06,170 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-02-27 12:55:06,170 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-02-27 12:55:06,170 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-02-27 12:55:06,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-02-27 12:55:06,171 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:55:06,171 INFO L402 BasicCegarLoop]: trace histogram [8, 7, 1, 1] [2019-02-27 12:55:06,171 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:55:06,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:55:06,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1333671982, now seen corresponding path program 7 times [2019-02-27 12:55:06,172 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:55:06,172 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:55:06,173 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 12:55:06,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:55:06,173 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:55:06,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:06,892 INFO L273 TraceCheckUtils]: 0: Hoare triple {921#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {923#(and (or (<= main_i 0) (<= main_n 7)) (or (< 7 main_n) (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:06,894 INFO L273 TraceCheckUtils]: 1: Hoare triple {923#(and (or (<= main_i 0) (<= main_n 7)) (or (< 7 main_n) (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {924#(and (or (< 7 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 7)))} is VALID [2019-02-27 12:55:06,895 INFO L273 TraceCheckUtils]: 2: Hoare triple {924#(and (or (< 7 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 7)))} assume i <= n * 4; {924#(and (or (< 7 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 7)))} is VALID [2019-02-27 12:55:06,896 INFO L273 TraceCheckUtils]: 3: Hoare triple {924#(and (or (< 7 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 7)))} assume a[i] != 23;i := i + 4; {925#(and (or (< 7 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 7)))} is VALID [2019-02-27 12:55:06,897 INFO L273 TraceCheckUtils]: 4: Hoare triple {925#(and (or (< 7 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 7)))} assume i <= n * 4; {925#(and (or (< 7 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 7)))} is VALID [2019-02-27 12:55:06,898 INFO L273 TraceCheckUtils]: 5: Hoare triple {925#(and (or (< 7 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 7)))} assume a[i] != 23;i := i + 4; {926#(and (or (< 7 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 7) (<= main_i 12)))} is VALID [2019-02-27 12:55:06,899 INFO L273 TraceCheckUtils]: 6: Hoare triple {926#(and (or (< 7 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 7) (<= main_i 12)))} assume i <= n * 4; {926#(and (or (< 7 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 7) (<= main_i 12)))} is VALID [2019-02-27 12:55:06,900 INFO L273 TraceCheckUtils]: 7: Hoare triple {926#(and (or (< 7 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 7) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {927#(and (or (<= main_i 16) (<= main_n 7)) (or (< 7 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:06,901 INFO L273 TraceCheckUtils]: 8: Hoare triple {927#(and (or (<= main_i 16) (<= main_n 7)) (or (< 7 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {927#(and (or (<= main_i 16) (<= main_n 7)) (or (< 7 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:06,904 INFO L273 TraceCheckUtils]: 9: Hoare triple {927#(and (or (<= main_i 16) (<= main_n 7)) (or (< 7 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {928#(and (or (<= main_i 20) (<= main_n 7)) (or (< 7 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:06,905 INFO L273 TraceCheckUtils]: 10: Hoare triple {928#(and (or (<= main_i 20) (<= main_n 7)) (or (< 7 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {928#(and (or (<= main_i 20) (<= main_n 7)) (or (< 7 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:06,906 INFO L273 TraceCheckUtils]: 11: Hoare triple {928#(and (or (<= main_i 20) (<= main_n 7)) (or (< 7 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {929#(and (or (< 7 main_n) (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 24) (<= main_n 7)))} is VALID [2019-02-27 12:55:06,906 INFO L273 TraceCheckUtils]: 12: Hoare triple {929#(and (or (< 7 main_n) (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 24) (<= main_n 7)))} assume i <= n * 4; {929#(and (or (< 7 main_n) (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 24) (<= main_n 7)))} is VALID [2019-02-27 12:55:06,907 INFO L273 TraceCheckUtils]: 13: Hoare triple {929#(and (or (< 7 main_n) (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 24) (<= main_n 7)))} assume a[i] != 23;i := i + 4; {930#(and (or (< 7 main_n) (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i))) (or (<= main_n 7) (<= main_i 28)))} is VALID [2019-02-27 12:55:06,908 INFO L273 TraceCheckUtils]: 14: Hoare triple {930#(and (or (< 7 main_n) (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i))) (or (<= main_n 7) (<= main_i 28)))} assume i <= n * 4; {931#(and (or (< 7 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 28))} is VALID [2019-02-27 12:55:06,910 INFO L273 TraceCheckUtils]: 15: Hoare triple {931#(and (or (< 7 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 28))} assume a[i] != 23;i := i + 4; {932#(and (<= main_i 32) (<= 8 main_n))} is VALID [2019-02-27 12:55:06,910 INFO L273 TraceCheckUtils]: 16: Hoare triple {932#(and (<= main_i 32) (<= 8 main_n))} assume !(i <= n * 4); {922#false} is VALID [2019-02-27 12:55:06,913 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:06,913 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:55:06,914 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:55:06,914 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:55:06,914 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:55:06,914 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:55:06,914 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:55:06,926 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 12:55:06,927 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-27 12:55:06,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:06,949 WARN L254 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 21 conjunts are in the unsatisfiable core [2019-02-27 12:55:06,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:06,968 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:55:06,995 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:55:06,997 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:55:07,001 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:55:07,001 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:55:07,005 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:55:07,005 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_11]. (and (= (store v_main_a_11 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-27 12:55:07,005 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:55:07,343 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:55:07,345 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:55:07,350 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:55:07,351 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:55:07,353 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:55:07,353 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 32) (not (= (select main_a 28) 23)) (= 23 (select main_a .cse0)) (<= 28 .cse0))) [2019-02-27 12:55:07,354 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 32) (not (= 28 .cse0)) (<= 28 .cse0))) [2019-02-27 12:55:07,368 INFO L273 TraceCheckUtils]: 0: Hoare triple {921#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {936#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:07,368 INFO L273 TraceCheckUtils]: 1: Hoare triple {936#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {940#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:55:07,369 INFO L273 TraceCheckUtils]: 2: Hoare triple {940#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {940#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:55:07,370 INFO L273 TraceCheckUtils]: 3: Hoare triple {940#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {947#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:07,371 INFO L273 TraceCheckUtils]: 4: Hoare triple {947#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {947#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:07,378 INFO L273 TraceCheckUtils]: 5: Hoare triple {947#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {954#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:55:07,378 INFO L273 TraceCheckUtils]: 6: Hoare triple {954#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {954#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:55:07,379 INFO L273 TraceCheckUtils]: 7: Hoare triple {954#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {961#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:07,379 INFO L273 TraceCheckUtils]: 8: Hoare triple {961#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {961#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:07,380 INFO L273 TraceCheckUtils]: 9: Hoare triple {961#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {968#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:07,380 INFO L273 TraceCheckUtils]: 10: Hoare triple {968#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {968#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:07,381 INFO L273 TraceCheckUtils]: 11: Hoare triple {968#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {975#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:07,382 INFO L273 TraceCheckUtils]: 12: Hoare triple {975#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {975#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:07,382 INFO L273 TraceCheckUtils]: 13: Hoare triple {975#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {982#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:07,383 INFO L273 TraceCheckUtils]: 14: Hoare triple {982#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {986#(and (= main_i 28) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:07,384 INFO L273 TraceCheckUtils]: 15: Hoare triple {986#(and (= main_i 28) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {932#(and (<= main_i 32) (<= 8 main_n))} is VALID [2019-02-27 12:55:07,385 INFO L273 TraceCheckUtils]: 16: Hoare triple {932#(and (<= main_i 32) (<= 8 main_n))} assume !(i <= n * 4); {922#false} is VALID [2019-02-27 12:55:07,387 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:07,387 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:55:07,799 INFO L273 TraceCheckUtils]: 16: Hoare triple {993#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {922#false} is VALID [2019-02-27 12:55:07,800 INFO L273 TraceCheckUtils]: 15: Hoare triple {997#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {993#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:55:07,801 INFO L273 TraceCheckUtils]: 14: Hoare triple {1001#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {997#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:55:07,802 INFO L273 TraceCheckUtils]: 13: Hoare triple {1005#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {1001#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:55:07,802 INFO L273 TraceCheckUtils]: 12: Hoare triple {1005#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {1005#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:55:07,804 INFO L273 TraceCheckUtils]: 11: Hoare triple {1012#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {1005#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:55:07,804 INFO L273 TraceCheckUtils]: 10: Hoare triple {1012#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {1012#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:55:07,805 INFO L273 TraceCheckUtils]: 9: Hoare triple {1019#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {1012#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:55:07,806 INFO L273 TraceCheckUtils]: 8: Hoare triple {1019#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {1019#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:55:07,807 INFO L273 TraceCheckUtils]: 7: Hoare triple {1026#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {1019#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:55:07,808 INFO L273 TraceCheckUtils]: 6: Hoare triple {1026#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {1026#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:55:07,809 INFO L273 TraceCheckUtils]: 5: Hoare triple {1033#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1026#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:55:07,809 INFO L273 TraceCheckUtils]: 4: Hoare triple {1033#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {1033#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:55:07,811 INFO L273 TraceCheckUtils]: 3: Hoare triple {1040#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {1033#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:55:07,811 INFO L273 TraceCheckUtils]: 2: Hoare triple {1040#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {1040#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:55:07,813 INFO L273 TraceCheckUtils]: 1: Hoare triple {1047#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1040#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:55:07,814 INFO L273 TraceCheckUtils]: 0: Hoare triple {921#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {1047#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:55:07,816 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:07,834 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:55:07,835 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 29 [2019-02-27 12:55:07,835 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:55:07,835 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 17 [2019-02-27 12:55:07,835 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:55:07,836 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 21 states. [2019-02-27 12:55:07,887 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:55:07,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-02-27 12:55:07,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-02-27 12:55:07,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=772, Unknown=0, NotChecked=0, Total=930 [2019-02-27 12:55:07,888 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 21 states. [2019-02-27 12:55:08,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:08,784 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2019-02-27 12:55:08,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-02-27 12:55:08,784 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 17 [2019-02-27 12:55:08,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:55:08,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-02-27 12:55:08,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 22 transitions. [2019-02-27 12:55:08,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-02-27 12:55:08,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 22 transitions. [2019-02-27 12:55:08,787 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 22 transitions. [2019-02-27 12:55:08,813 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:55:08,814 INFO L225 Difference]: With dead ends: 22 [2019-02-27 12:55:08,814 INFO L226 Difference]: Without dead ends: 21 [2019-02-27 12:55:08,815 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=158, Invalid=772, Unknown=0, NotChecked=0, Total=930 [2019-02-27 12:55:08,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-02-27 12:55:08,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2019-02-27 12:55:08,842 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:55:08,842 INFO L82 GeneralOperation]: Start isEquivalent. First operand 21 states. Second operand 20 states. [2019-02-27 12:55:08,842 INFO L74 IsIncluded]: Start isIncluded. First operand 21 states. Second operand 20 states. [2019-02-27 12:55:08,842 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 20 states. [2019-02-27 12:55:08,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:08,843 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2019-02-27 12:55:08,844 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2019-02-27 12:55:08,844 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:55:08,844 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:55:08,844 INFO L74 IsIncluded]: Start isIncluded. First operand 20 states. Second operand 21 states. [2019-02-27 12:55:08,844 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 21 states. [2019-02-27 12:55:08,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:08,846 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2019-02-27 12:55:08,846 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2019-02-27 12:55:08,846 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:55:08,846 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:55:08,847 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:55:08,847 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:55:08,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-02-27 12:55:08,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2019-02-27 12:55:08,848 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 17 [2019-02-27 12:55:08,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:55:08,848 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2019-02-27 12:55:08,848 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-02-27 12:55:08,848 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2019-02-27 12:55:08,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-02-27 12:55:08,849 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:55:08,849 INFO L402 BasicCegarLoop]: trace histogram [9, 8, 1, 1] [2019-02-27 12:55:08,849 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:55:08,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:55:08,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1758521584, now seen corresponding path program 8 times [2019-02-27 12:55:08,850 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:55:08,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:55:08,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 12:55:08,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:55:08,851 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:55:08,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:09,355 INFO L273 TraceCheckUtils]: 0: Hoare triple {1153#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {1155#(and (or (<= main_n 8) (<= main_i 0)) (or (<= 0 main_i) (< 8 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:09,357 INFO L273 TraceCheckUtils]: 1: Hoare triple {1155#(and (or (<= main_n 8) (<= main_i 0)) (or (<= 0 main_i) (< 8 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1156#(and (or (< 8 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 8) (<= main_i 4)))} is VALID [2019-02-27 12:55:09,358 INFO L273 TraceCheckUtils]: 2: Hoare triple {1156#(and (or (< 8 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 8) (<= main_i 4)))} assume i <= n * 4; {1156#(and (or (< 8 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 8) (<= main_i 4)))} is VALID [2019-02-27 12:55:09,359 INFO L273 TraceCheckUtils]: 3: Hoare triple {1156#(and (or (< 8 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 8) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {1157#(and (or (< 8 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 8)))} is VALID [2019-02-27 12:55:09,360 INFO L273 TraceCheckUtils]: 4: Hoare triple {1157#(and (or (< 8 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 8)))} assume i <= n * 4; {1157#(and (or (< 8 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 8)))} is VALID [2019-02-27 12:55:09,361 INFO L273 TraceCheckUtils]: 5: Hoare triple {1157#(and (or (< 8 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 8)))} assume a[i] != 23;i := i + 4; {1158#(and (or (<= main_n 8) (<= main_i 12)) (or (< 8 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:09,362 INFO L273 TraceCheckUtils]: 6: Hoare triple {1158#(and (or (<= main_n 8) (<= main_i 12)) (or (< 8 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1158#(and (or (<= main_n 8) (<= main_i 12)) (or (< 8 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:09,363 INFO L273 TraceCheckUtils]: 7: Hoare triple {1158#(and (or (<= main_n 8) (<= main_i 12)) (or (< 8 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1159#(and (or (<= main_n 8) (<= main_i 16)) (or (< 8 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:09,363 INFO L273 TraceCheckUtils]: 8: Hoare triple {1159#(and (or (<= main_n 8) (<= main_i 16)) (or (< 8 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1159#(and (or (<= main_n 8) (<= main_i 16)) (or (< 8 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:09,365 INFO L273 TraceCheckUtils]: 9: Hoare triple {1159#(and (or (<= main_n 8) (<= main_i 16)) (or (< 8 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1160#(and (or (<= main_n 8) (<= main_i 20)) (or (< 8 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:09,365 INFO L273 TraceCheckUtils]: 10: Hoare triple {1160#(and (or (<= main_n 8) (<= main_i 20)) (or (< 8 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1160#(and (or (<= main_n 8) (<= main_i 20)) (or (< 8 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:09,367 INFO L273 TraceCheckUtils]: 11: Hoare triple {1160#(and (or (<= main_n 8) (<= main_i 20)) (or (< 8 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1161#(and (or (<= main_n 8) (<= main_i 24)) (or (< 8 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:09,367 INFO L273 TraceCheckUtils]: 12: Hoare triple {1161#(and (or (<= main_n 8) (<= main_i 24)) (or (< 8 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1161#(and (or (<= main_n 8) (<= main_i 24)) (or (< 8 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:09,368 INFO L273 TraceCheckUtils]: 13: Hoare triple {1161#(and (or (<= main_n 8) (<= main_i 24)) (or (< 8 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1162#(and (or (<= main_n 8) (<= main_i 28)) (or (<= 28 main_i) (< 8 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:09,369 INFO L273 TraceCheckUtils]: 14: Hoare triple {1162#(and (or (<= main_n 8) (<= main_i 28)) (or (<= 28 main_i) (< 8 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1162#(and (or (<= main_n 8) (<= main_i 28)) (or (<= 28 main_i) (< 8 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:09,371 INFO L273 TraceCheckUtils]: 15: Hoare triple {1162#(and (or (<= main_n 8) (<= main_i 28)) (or (<= 28 main_i) (< 8 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1163#(and (or (= (* 4 main_n) main_i) (and (or (<= main_i 32) (<= main_n 8)) (or (< 8 main_n) (<= (* 4 main_n) main_i)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-02-27 12:55:09,373 INFO L273 TraceCheckUtils]: 16: Hoare triple {1163#(and (or (= (* 4 main_n) main_i) (and (or (<= main_i 32) (<= main_n 8)) (or (< 8 main_n) (<= (* 4 main_n) main_i)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume i <= n * 4; {1164#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 32) (< 8 main_n))))} is VALID [2019-02-27 12:55:09,375 INFO L273 TraceCheckUtils]: 17: Hoare triple {1164#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 32) (< 8 main_n))))} assume a[i] != 23;i := i + 4; {1165#(and (<= main_i 36) (<= 9 main_n))} is VALID [2019-02-27 12:55:09,375 INFO L273 TraceCheckUtils]: 18: Hoare triple {1165#(and (<= main_i 36) (<= 9 main_n))} assume !(i <= n * 4); {1154#false} is VALID [2019-02-27 12:55:09,377 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:09,377 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:55:09,377 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:55:09,377 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:55:09,377 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:55:09,378 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:55:09,378 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:55:09,388 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-27 12:55:09,388 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-27 12:55:09,403 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2019-02-27 12:55:09,403 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 12:55:09,404 WARN L254 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 23 conjunts are in the unsatisfiable core [2019-02-27 12:55:09,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:09,408 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:55:09,420 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:55:09,428 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:55:09,431 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:55:09,431 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:55:09,433 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:55:09,433 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_12]. (and (= (store v_main_a_12 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-27 12:55:09,433 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:55:09,813 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:55:09,815 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:55:09,820 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:55:09,821 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:55:09,823 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:55:09,823 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 36) (not (= (select main_a 32) 23)) (<= 32 .cse0) (= 23 (select main_a .cse0)))) [2019-02-27 12:55:09,823 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 36) (not (= 32 .cse0)) (<= 32 .cse0))) [2019-02-27 12:55:09,839 INFO L273 TraceCheckUtils]: 0: Hoare triple {1153#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {1169#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:09,840 INFO L273 TraceCheckUtils]: 1: Hoare triple {1169#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1173#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:55:09,843 INFO L273 TraceCheckUtils]: 2: Hoare triple {1173#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {1173#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:55:09,844 INFO L273 TraceCheckUtils]: 3: Hoare triple {1173#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {1180#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:09,845 INFO L273 TraceCheckUtils]: 4: Hoare triple {1180#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1180#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:09,850 INFO L273 TraceCheckUtils]: 5: Hoare triple {1180#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1187#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:55:09,850 INFO L273 TraceCheckUtils]: 6: Hoare triple {1187#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {1187#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:55:09,851 INFO L273 TraceCheckUtils]: 7: Hoare triple {1187#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {1194#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:09,851 INFO L273 TraceCheckUtils]: 8: Hoare triple {1194#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1194#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:09,852 INFO L273 TraceCheckUtils]: 9: Hoare triple {1194#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1201#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:09,852 INFO L273 TraceCheckUtils]: 10: Hoare triple {1201#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1201#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:09,853 INFO L273 TraceCheckUtils]: 11: Hoare triple {1201#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1208#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:09,853 INFO L273 TraceCheckUtils]: 12: Hoare triple {1208#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1208#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:09,854 INFO L273 TraceCheckUtils]: 13: Hoare triple {1208#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1215#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:09,854 INFO L273 TraceCheckUtils]: 14: Hoare triple {1215#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1215#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:09,855 INFO L273 TraceCheckUtils]: 15: Hoare triple {1215#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1222#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:09,855 INFO L273 TraceCheckUtils]: 16: Hoare triple {1222#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1226#(and (= main_i 32) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:09,866 INFO L273 TraceCheckUtils]: 17: Hoare triple {1226#(and (= main_i 32) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1165#(and (<= main_i 36) (<= 9 main_n))} is VALID [2019-02-27 12:55:09,867 INFO L273 TraceCheckUtils]: 18: Hoare triple {1165#(and (<= main_i 36) (<= 9 main_n))} assume !(i <= n * 4); {1154#false} is VALID [2019-02-27 12:55:09,868 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:09,868 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:55:10,441 INFO L273 TraceCheckUtils]: 18: Hoare triple {1233#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {1154#false} is VALID [2019-02-27 12:55:10,442 INFO L273 TraceCheckUtils]: 17: Hoare triple {1237#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {1233#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:55:10,443 INFO L273 TraceCheckUtils]: 16: Hoare triple {1241#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {1237#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:55:10,444 INFO L273 TraceCheckUtils]: 15: Hoare triple {1245#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {1241#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:55:10,445 INFO L273 TraceCheckUtils]: 14: Hoare triple {1245#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {1245#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:55:10,446 INFO L273 TraceCheckUtils]: 13: Hoare triple {1252#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {1245#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:55:10,447 INFO L273 TraceCheckUtils]: 12: Hoare triple {1252#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {1252#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:55:10,448 INFO L273 TraceCheckUtils]: 11: Hoare triple {1259#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {1252#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:55:10,449 INFO L273 TraceCheckUtils]: 10: Hoare triple {1259#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {1259#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:55:10,450 INFO L273 TraceCheckUtils]: 9: Hoare triple {1266#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {1259#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:55:10,451 INFO L273 TraceCheckUtils]: 8: Hoare triple {1266#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {1266#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:55:10,452 INFO L273 TraceCheckUtils]: 7: Hoare triple {1273#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1266#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:55:10,453 INFO L273 TraceCheckUtils]: 6: Hoare triple {1273#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {1273#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:55:10,454 INFO L273 TraceCheckUtils]: 5: Hoare triple {1280#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {1273#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:55:10,455 INFO L273 TraceCheckUtils]: 4: Hoare triple {1280#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {1280#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:55:10,456 INFO L273 TraceCheckUtils]: 3: Hoare triple {1287#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1280#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:55:10,457 INFO L273 TraceCheckUtils]: 2: Hoare triple {1287#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {1287#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:55:10,458 INFO L273 TraceCheckUtils]: 1: Hoare triple {1294#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1287#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:55:10,459 INFO L273 TraceCheckUtils]: 0: Hoare triple {1153#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {1294#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:55:10,462 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:10,483 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:55:10,483 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 32 [2019-02-27 12:55:10,483 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:55:10,484 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 19 [2019-02-27 12:55:10,484 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:55:10,484 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 23 states. [2019-02-27 12:55:10,531 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:55:10,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-02-27 12:55:10,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-02-27 12:55:10,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=938, Unknown=0, NotChecked=0, Total=1122 [2019-02-27 12:55:10,533 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 23 states. [2019-02-27 12:55:11,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:11,149 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2019-02-27 12:55:11,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-02-27 12:55:11,150 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 19 [2019-02-27 12:55:11,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:55:11,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-02-27 12:55:11,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 24 transitions. [2019-02-27 12:55:11,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-02-27 12:55:11,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 24 transitions. [2019-02-27 12:55:11,153 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states and 24 transitions. [2019-02-27 12:55:11,179 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:55:11,180 INFO L225 Difference]: With dead ends: 24 [2019-02-27 12:55:11,180 INFO L226 Difference]: Without dead ends: 23 [2019-02-27 12:55:11,181 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=184, Invalid=938, Unknown=0, NotChecked=0, Total=1122 [2019-02-27 12:55:11,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-02-27 12:55:11,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2019-02-27 12:55:11,203 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:55:11,203 INFO L82 GeneralOperation]: Start isEquivalent. First operand 23 states. Second operand 22 states. [2019-02-27 12:55:11,203 INFO L74 IsIncluded]: Start isIncluded. First operand 23 states. Second operand 22 states. [2019-02-27 12:55:11,203 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 22 states. [2019-02-27 12:55:11,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:11,205 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2019-02-27 12:55:11,205 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2019-02-27 12:55:11,205 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:55:11,205 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:55:11,205 INFO L74 IsIncluded]: Start isIncluded. First operand 22 states. Second operand 23 states. [2019-02-27 12:55:11,205 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 23 states. [2019-02-27 12:55:11,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:11,207 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2019-02-27 12:55:11,207 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2019-02-27 12:55:11,207 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:55:11,207 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:55:11,207 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:55:11,207 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:55:11,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-02-27 12:55:11,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2019-02-27 12:55:11,209 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 19 [2019-02-27 12:55:11,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:55:11,209 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2019-02-27 12:55:11,209 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-02-27 12:55:11,209 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2019-02-27 12:55:11,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-02-27 12:55:11,210 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:55:11,210 INFO L402 BasicCegarLoop]: trace histogram [10, 9, 1, 1] [2019-02-27 12:55:11,210 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:55:11,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:55:11,210 INFO L82 PathProgramCache]: Analyzing trace with hash 2017095986, now seen corresponding path program 9 times [2019-02-27 12:55:11,210 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:55:11,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:55:11,211 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 12:55:11,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:55:11,212 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:55:11,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:11,946 INFO L273 TraceCheckUtils]: 0: Hoare triple {1410#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {1412#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)) (or (<= main_n 9) (<= main_i 0)))} is VALID [2019-02-27 12:55:11,948 INFO L273 TraceCheckUtils]: 1: Hoare triple {1412#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)) (or (<= main_n 9) (<= main_i 0)))} assume a[i] != 23;i := i + 4; {1413#(and (or (<= main_n 9) (<= main_i 4)) (or (< 9 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2019-02-27 12:55:11,949 INFO L273 TraceCheckUtils]: 2: Hoare triple {1413#(and (or (<= main_n 9) (<= main_i 4)) (or (< 9 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume i <= n * 4; {1413#(and (or (<= main_n 9) (<= main_i 4)) (or (< 9 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2019-02-27 12:55:11,950 INFO L273 TraceCheckUtils]: 3: Hoare triple {1413#(and (or (<= main_n 9) (<= main_i 4)) (or (< 9 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume a[i] != 23;i := i + 4; {1414#(and (or (<= main_i 8) (<= main_n 9)) (or (< 9 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:11,951 INFO L273 TraceCheckUtils]: 4: Hoare triple {1414#(and (or (<= main_i 8) (<= main_n 9)) (or (< 9 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {1414#(and (or (<= main_i 8) (<= main_n 9)) (or (< 9 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:11,952 INFO L273 TraceCheckUtils]: 5: Hoare triple {1414#(and (or (<= main_i 8) (<= main_n 9)) (or (< 9 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {1415#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)) (or (<= main_n 9) (<= main_i 12)))} is VALID [2019-02-27 12:55:11,953 INFO L273 TraceCheckUtils]: 6: Hoare triple {1415#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)) (or (<= main_n 9) (<= main_i 12)))} assume i <= n * 4; {1415#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)) (or (<= main_n 9) (<= main_i 12)))} is VALID [2019-02-27 12:55:11,954 INFO L273 TraceCheckUtils]: 7: Hoare triple {1415#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)) (or (<= main_n 9) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {1416#(and (or (< 9 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 9) (<= main_i 16)))} is VALID [2019-02-27 12:55:11,955 INFO L273 TraceCheckUtils]: 8: Hoare triple {1416#(and (or (< 9 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 9) (<= main_i 16)))} assume i <= n * 4; {1416#(and (or (< 9 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 9) (<= main_i 16)))} is VALID [2019-02-27 12:55:11,956 INFO L273 TraceCheckUtils]: 9: Hoare triple {1416#(and (or (< 9 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 9) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {1417#(and (or (< 9 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 9) (<= main_i 20)))} is VALID [2019-02-27 12:55:11,957 INFO L273 TraceCheckUtils]: 10: Hoare triple {1417#(and (or (< 9 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 9) (<= main_i 20)))} assume i <= n * 4; {1417#(and (or (< 9 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 9) (<= main_i 20)))} is VALID [2019-02-27 12:55:11,958 INFO L273 TraceCheckUtils]: 11: Hoare triple {1417#(and (or (< 9 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 9) (<= main_i 20)))} assume a[i] != 23;i := i + 4; {1418#(and (or (<= main_n 9) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)))} is VALID [2019-02-27 12:55:11,959 INFO L273 TraceCheckUtils]: 12: Hoare triple {1418#(and (or (<= main_n 9) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)))} assume i <= n * 4; {1418#(and (or (<= main_n 9) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)))} is VALID [2019-02-27 12:55:11,960 INFO L273 TraceCheckUtils]: 13: Hoare triple {1418#(and (or (<= main_n 9) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)))} assume a[i] != 23;i := i + 4; {1419#(and (or (<= main_n 9) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)))} is VALID [2019-02-27 12:55:11,961 INFO L273 TraceCheckUtils]: 14: Hoare triple {1419#(and (or (<= main_n 9) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)))} assume i <= n * 4; {1419#(and (or (<= main_n 9) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)))} is VALID [2019-02-27 12:55:11,962 INFO L273 TraceCheckUtils]: 15: Hoare triple {1419#(and (or (<= main_n 9) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)))} assume a[i] != 23;i := i + 4; {1420#(and (or (< 9 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 9)))} is VALID [2019-02-27 12:55:11,963 INFO L273 TraceCheckUtils]: 16: Hoare triple {1420#(and (or (< 9 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 9)))} assume i <= n * 4; {1420#(and (or (< 9 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 9)))} is VALID [2019-02-27 12:55:11,967 INFO L273 TraceCheckUtils]: 17: Hoare triple {1420#(and (or (< 9 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 9)))} assume a[i] != 23;i := i + 4; {1421#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 9 main_n)) (or (<= main_i 36) (<= main_n 9)))} is VALID [2019-02-27 12:55:11,968 INFO L273 TraceCheckUtils]: 18: Hoare triple {1421#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 9 main_n)) (or (<= main_i 36) (<= main_n 9)))} assume i <= n * 4; {1422#(and (<= main_i 36) (or (< 9 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} is VALID [2019-02-27 12:55:11,968 INFO L273 TraceCheckUtils]: 19: Hoare triple {1422#(and (<= main_i 36) (or (< 9 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} assume a[i] != 23;i := i + 4; {1423#(and (<= main_i 40) (<= 10 main_n))} is VALID [2019-02-27 12:55:11,969 INFO L273 TraceCheckUtils]: 20: Hoare triple {1423#(and (<= main_i 40) (<= 10 main_n))} assume !(i <= n * 4); {1411#false} is VALID [2019-02-27 12:55:11,972 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:11,972 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:55:11,973 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:55:11,973 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:55:11,973 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:55:11,973 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:55:11,973 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:55:11,983 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-27 12:55:11,983 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-27 12:55:11,994 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-27 12:55:11,994 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 12:55:11,995 WARN L254 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 25 conjunts are in the unsatisfiable core [2019-02-27 12:55:12,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:12,014 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:55:12,023 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:55:12,028 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:55:12,036 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:55:12,036 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:55:12,038 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:55:12,038 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_13]. (and (= main_a (store v_main_a_13 (* 4 main_n) 23)) (= main_i 0)) [2019-02-27 12:55:12,038 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:55:12,403 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:55:12,407 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:55:12,412 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:55:12,412 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:55:12,415 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:55:12,416 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 40) (not (= (select main_a 36) 23)) (= 23 (select main_a .cse0)) (<= 36 .cse0))) [2019-02-27 12:55:12,416 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 40) (not (= 36 .cse0)) (<= 36 .cse0))) [2019-02-27 12:55:12,434 INFO L273 TraceCheckUtils]: 0: Hoare triple {1410#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {1427#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:12,434 INFO L273 TraceCheckUtils]: 1: Hoare triple {1427#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1431#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:55:12,435 INFO L273 TraceCheckUtils]: 2: Hoare triple {1431#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {1431#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:55:12,435 INFO L273 TraceCheckUtils]: 3: Hoare triple {1431#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {1438#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:12,436 INFO L273 TraceCheckUtils]: 4: Hoare triple {1438#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1438#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:12,437 INFO L273 TraceCheckUtils]: 5: Hoare triple {1438#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1445#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:55:12,437 INFO L273 TraceCheckUtils]: 6: Hoare triple {1445#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {1445#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:55:12,438 INFO L273 TraceCheckUtils]: 7: Hoare triple {1445#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {1452#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:12,438 INFO L273 TraceCheckUtils]: 8: Hoare triple {1452#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1452#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:12,439 INFO L273 TraceCheckUtils]: 9: Hoare triple {1452#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1459#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:12,440 INFO L273 TraceCheckUtils]: 10: Hoare triple {1459#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1459#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:12,441 INFO L273 TraceCheckUtils]: 11: Hoare triple {1459#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1466#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:12,442 INFO L273 TraceCheckUtils]: 12: Hoare triple {1466#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1466#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:12,443 INFO L273 TraceCheckUtils]: 13: Hoare triple {1466#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1473#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:12,444 INFO L273 TraceCheckUtils]: 14: Hoare triple {1473#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1473#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:12,445 INFO L273 TraceCheckUtils]: 15: Hoare triple {1473#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1480#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:12,446 INFO L273 TraceCheckUtils]: 16: Hoare triple {1480#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1480#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:12,447 INFO L273 TraceCheckUtils]: 17: Hoare triple {1480#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1487#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:12,448 INFO L273 TraceCheckUtils]: 18: Hoare triple {1487#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1491#(and (= main_i 36) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:12,449 INFO L273 TraceCheckUtils]: 19: Hoare triple {1491#(and (= main_i 36) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1423#(and (<= main_i 40) (<= 10 main_n))} is VALID [2019-02-27 12:55:12,450 INFO L273 TraceCheckUtils]: 20: Hoare triple {1423#(and (<= main_i 40) (<= 10 main_n))} assume !(i <= n * 4); {1411#false} is VALID [2019-02-27 12:55:12,453 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:12,453 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:55:12,963 INFO L273 TraceCheckUtils]: 20: Hoare triple {1498#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {1411#false} is VALID [2019-02-27 12:55:12,964 INFO L273 TraceCheckUtils]: 19: Hoare triple {1502#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {1498#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:55:12,965 INFO L273 TraceCheckUtils]: 18: Hoare triple {1506#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {1502#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:55:12,966 INFO L273 TraceCheckUtils]: 17: Hoare triple {1510#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {1506#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:55:12,967 INFO L273 TraceCheckUtils]: 16: Hoare triple {1510#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {1510#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:55:12,968 INFO L273 TraceCheckUtils]: 15: Hoare triple {1517#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {1510#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:55:12,969 INFO L273 TraceCheckUtils]: 14: Hoare triple {1517#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {1517#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:55:12,970 INFO L273 TraceCheckUtils]: 13: Hoare triple {1524#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {1517#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:55:12,971 INFO L273 TraceCheckUtils]: 12: Hoare triple {1524#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {1524#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:55:12,972 INFO L273 TraceCheckUtils]: 11: Hoare triple {1531#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {1524#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:55:12,973 INFO L273 TraceCheckUtils]: 10: Hoare triple {1531#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {1531#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:55:12,974 INFO L273 TraceCheckUtils]: 9: Hoare triple {1538#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1531#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:55:12,974 INFO L273 TraceCheckUtils]: 8: Hoare triple {1538#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {1538#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:55:12,976 INFO L273 TraceCheckUtils]: 7: Hoare triple {1545#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {1538#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:55:12,976 INFO L273 TraceCheckUtils]: 6: Hoare triple {1545#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {1545#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:55:12,978 INFO L273 TraceCheckUtils]: 5: Hoare triple {1552#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1545#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:55:12,978 INFO L273 TraceCheckUtils]: 4: Hoare triple {1552#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {1552#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:55:12,980 INFO L273 TraceCheckUtils]: 3: Hoare triple {1559#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1552#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:55:12,980 INFO L273 TraceCheckUtils]: 2: Hoare triple {1559#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {1559#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:55:12,981 INFO L273 TraceCheckUtils]: 1: Hoare triple {1566#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1559#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:55:12,983 INFO L273 TraceCheckUtils]: 0: Hoare triple {1410#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {1566#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:55:12,985 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:13,005 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:55:13,005 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 35 [2019-02-27 12:55:13,005 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:55:13,006 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 21 [2019-02-27 12:55:13,006 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:55:13,006 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 25 states. [2019-02-27 12:55:13,056 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:55:13,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-02-27 12:55:13,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-02-27 12:55:13,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=1120, Unknown=0, NotChecked=0, Total=1332 [2019-02-27 12:55:13,058 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 25 states. [2019-02-27 12:55:13,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:13,907 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2019-02-27 12:55:13,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-02-27 12:55:13,907 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 21 [2019-02-27 12:55:13,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:55:13,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-02-27 12:55:13,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 26 transitions. [2019-02-27 12:55:13,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-02-27 12:55:13,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 26 transitions. [2019-02-27 12:55:13,910 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states and 26 transitions. [2019-02-27 12:55:13,941 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:55:13,942 INFO L225 Difference]: With dead ends: 26 [2019-02-27 12:55:13,942 INFO L226 Difference]: Without dead ends: 25 [2019-02-27 12:55:13,943 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=212, Invalid=1120, Unknown=0, NotChecked=0, Total=1332 [2019-02-27 12:55:13,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-02-27 12:55:13,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2019-02-27 12:55:13,967 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:55:13,967 INFO L82 GeneralOperation]: Start isEquivalent. First operand 25 states. Second operand 24 states. [2019-02-27 12:55:13,968 INFO L74 IsIncluded]: Start isIncluded. First operand 25 states. Second operand 24 states. [2019-02-27 12:55:13,968 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 24 states. [2019-02-27 12:55:13,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:13,969 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2019-02-27 12:55:13,970 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2019-02-27 12:55:13,970 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:55:13,970 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:55:13,970 INFO L74 IsIncluded]: Start isIncluded. First operand 24 states. Second operand 25 states. [2019-02-27 12:55:13,970 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 25 states. [2019-02-27 12:55:13,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:13,971 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2019-02-27 12:55:13,971 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2019-02-27 12:55:13,972 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:55:13,972 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:55:13,972 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:55:13,972 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:55:13,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-02-27 12:55:13,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2019-02-27 12:55:13,973 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 21 [2019-02-27 12:55:13,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:55:13,973 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2019-02-27 12:55:13,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-02-27 12:55:13,974 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2019-02-27 12:55:13,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-02-27 12:55:13,974 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:55:13,974 INFO L402 BasicCegarLoop]: trace histogram [11, 10, 1, 1] [2019-02-27 12:55:13,975 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:55:13,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:55:13,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1398993140, now seen corresponding path program 10 times [2019-02-27 12:55:13,975 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:55:13,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:55:13,976 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 12:55:13,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:55:13,976 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:55:13,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:14,579 INFO L273 TraceCheckUtils]: 0: Hoare triple {1692#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {1694#(and (or (<= main_n 10) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} is VALID [2019-02-27 12:55:14,581 INFO L273 TraceCheckUtils]: 1: Hoare triple {1694#(and (or (<= main_n 10) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} assume a[i] != 23;i := i + 4; {1695#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 10 main_n)) (or (<= main_n 10) (<= main_i 4)))} is VALID [2019-02-27 12:55:14,582 INFO L273 TraceCheckUtils]: 2: Hoare triple {1695#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 10 main_n)) (or (<= main_n 10) (<= main_i 4)))} assume i <= n * 4; {1695#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 10 main_n)) (or (<= main_n 10) (<= main_i 4)))} is VALID [2019-02-27 12:55:14,583 INFO L273 TraceCheckUtils]: 3: Hoare triple {1695#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 10 main_n)) (or (<= main_n 10) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {1696#(and (or (<= main_i 8) (<= main_n 10)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} is VALID [2019-02-27 12:55:14,584 INFO L273 TraceCheckUtils]: 4: Hoare triple {1696#(and (or (<= main_i 8) (<= main_n 10)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} assume i <= n * 4; {1696#(and (or (<= main_i 8) (<= main_n 10)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} is VALID [2019-02-27 12:55:14,585 INFO L273 TraceCheckUtils]: 5: Hoare triple {1696#(and (or (<= main_i 8) (<= main_n 10)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} assume a[i] != 23;i := i + 4; {1697#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_n 10) (<= main_i 12)))} is VALID [2019-02-27 12:55:14,586 INFO L273 TraceCheckUtils]: 6: Hoare triple {1697#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_n 10) (<= main_i 12)))} assume i <= n * 4; {1697#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_n 10) (<= main_i 12)))} is VALID [2019-02-27 12:55:14,587 INFO L273 TraceCheckUtils]: 7: Hoare triple {1697#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_n 10) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {1698#(and (or (<= main_n 10) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} is VALID [2019-02-27 12:55:14,588 INFO L273 TraceCheckUtils]: 8: Hoare triple {1698#(and (or (<= main_n 10) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} assume i <= n * 4; {1698#(and (or (<= main_n 10) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} is VALID [2019-02-27 12:55:14,589 INFO L273 TraceCheckUtils]: 9: Hoare triple {1698#(and (or (<= main_n 10) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} assume a[i] != 23;i := i + 4; {1699#(and (or (< 10 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 10) (<= main_i 20)))} is VALID [2019-02-27 12:55:14,590 INFO L273 TraceCheckUtils]: 10: Hoare triple {1699#(and (or (< 10 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 10) (<= main_i 20)))} assume i <= n * 4; {1699#(and (or (< 10 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 10) (<= main_i 20)))} is VALID [2019-02-27 12:55:14,591 INFO L273 TraceCheckUtils]: 11: Hoare triple {1699#(and (or (< 10 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 10) (<= main_i 20)))} assume a[i] != 23;i := i + 4; {1700#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_n 10) (<= main_i 24)))} is VALID [2019-02-27 12:55:14,592 INFO L273 TraceCheckUtils]: 12: Hoare triple {1700#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_n 10) (<= main_i 24)))} assume i <= n * 4; {1700#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_n 10) (<= main_i 24)))} is VALID [2019-02-27 12:55:14,593 INFO L273 TraceCheckUtils]: 13: Hoare triple {1700#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_n 10) (<= main_i 24)))} assume a[i] != 23;i := i + 4; {1701#(and (or (<= main_n 10) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} is VALID [2019-02-27 12:55:14,594 INFO L273 TraceCheckUtils]: 14: Hoare triple {1701#(and (or (<= main_n 10) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} assume i <= n * 4; {1701#(and (or (<= main_n 10) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} is VALID [2019-02-27 12:55:14,615 INFO L273 TraceCheckUtils]: 15: Hoare triple {1701#(and (or (<= main_n 10) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} assume a[i] != 23;i := i + 4; {1702#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_i 32) (<= main_n 10)))} is VALID [2019-02-27 12:55:14,630 INFO L273 TraceCheckUtils]: 16: Hoare triple {1702#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_i 32) (<= main_n 10)))} assume i <= n * 4; {1702#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_i 32) (<= main_n 10)))} is VALID [2019-02-27 12:55:14,635 INFO L273 TraceCheckUtils]: 17: Hoare triple {1702#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_i 32) (<= main_n 10)))} assume a[i] != 23;i := i + 4; {1703#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 10 main_n)) (or (<= main_i 36) (<= main_n 10)))} is VALID [2019-02-27 12:55:14,636 INFO L273 TraceCheckUtils]: 18: Hoare triple {1703#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 10 main_n)) (or (<= main_i 36) (<= main_n 10)))} assume i <= n * 4; {1703#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 10 main_n)) (or (<= main_i 36) (<= main_n 10)))} is VALID [2019-02-27 12:55:14,637 INFO L273 TraceCheckUtils]: 19: Hoare triple {1703#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 10 main_n)) (or (<= main_i 36) (<= main_n 10)))} assume a[i] != 23;i := i + 4; {1704#(and (or (<= main_i 40) (<= main_n 10)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 10 main_n)))} is VALID [2019-02-27 12:55:14,638 INFO L273 TraceCheckUtils]: 20: Hoare triple {1704#(and (or (<= main_i 40) (<= main_n 10)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 10 main_n)))} assume i <= n * 4; {1705#(and (<= main_i 40) (or (< 10 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} is VALID [2019-02-27 12:55:14,638 INFO L273 TraceCheckUtils]: 21: Hoare triple {1705#(and (<= main_i 40) (or (< 10 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} assume a[i] != 23;i := i + 4; {1706#(and (< 10 main_n) (<= main_i 44))} is VALID [2019-02-27 12:55:14,639 INFO L273 TraceCheckUtils]: 22: Hoare triple {1706#(and (< 10 main_n) (<= main_i 44))} assume !(i <= n * 4); {1693#false} is VALID [2019-02-27 12:55:14,643 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:14,643 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:55:14,643 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:55:14,643 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:55:14,643 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:55:14,643 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:55:14,643 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:55:14,653 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 12:55:14,653 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-27 12:55:14,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:14,663 WARN L254 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 27 conjunts are in the unsatisfiable core [2019-02-27 12:55:14,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:14,669 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:55:14,681 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:55:14,685 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:55:14,696 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:55:14,696 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:55:14,698 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:55:14,698 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_14]. (and (= (store v_main_a_14 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-27 12:55:14,698 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:55:15,049 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:55:15,052 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:55:15,057 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:55:15,058 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:55:15,062 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:55:15,063 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 40 .cse0) (not (= (select main_a 40) 23)) (= 23 (select main_a .cse0)) (<= main_i 44))) [2019-02-27 12:55:15,063 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 40 .cse0) (not (= 40 .cse0)) (<= main_i 44))) [2019-02-27 12:55:15,080 INFO L273 TraceCheckUtils]: 0: Hoare triple {1692#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {1710#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:15,081 INFO L273 TraceCheckUtils]: 1: Hoare triple {1710#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1714#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:55:15,082 INFO L273 TraceCheckUtils]: 2: Hoare triple {1714#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {1714#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:55:15,082 INFO L273 TraceCheckUtils]: 3: Hoare triple {1714#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {1721#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:15,083 INFO L273 TraceCheckUtils]: 4: Hoare triple {1721#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1721#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:15,084 INFO L273 TraceCheckUtils]: 5: Hoare triple {1721#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1728#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:55:15,088 INFO L273 TraceCheckUtils]: 6: Hoare triple {1728#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {1728#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:55:15,090 INFO L273 TraceCheckUtils]: 7: Hoare triple {1728#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {1735#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:15,091 INFO L273 TraceCheckUtils]: 8: Hoare triple {1735#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1735#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:15,091 INFO L273 TraceCheckUtils]: 9: Hoare triple {1735#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1742#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:15,092 INFO L273 TraceCheckUtils]: 10: Hoare triple {1742#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1742#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:15,092 INFO L273 TraceCheckUtils]: 11: Hoare triple {1742#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1749#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:15,093 INFO L273 TraceCheckUtils]: 12: Hoare triple {1749#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1749#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:15,094 INFO L273 TraceCheckUtils]: 13: Hoare triple {1749#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1756#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:15,095 INFO L273 TraceCheckUtils]: 14: Hoare triple {1756#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1756#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:15,095 INFO L273 TraceCheckUtils]: 15: Hoare triple {1756#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1763#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:15,096 INFO L273 TraceCheckUtils]: 16: Hoare triple {1763#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1763#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:15,097 INFO L273 TraceCheckUtils]: 17: Hoare triple {1763#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1770#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:15,098 INFO L273 TraceCheckUtils]: 18: Hoare triple {1770#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1770#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:15,098 INFO L273 TraceCheckUtils]: 19: Hoare triple {1770#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1777#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:15,099 INFO L273 TraceCheckUtils]: 20: Hoare triple {1777#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1781#(and (<= main_i (* 4 main_n)) (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:15,100 INFO L273 TraceCheckUtils]: 21: Hoare triple {1781#(and (<= main_i (* 4 main_n)) (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1706#(and (< 10 main_n) (<= main_i 44))} is VALID [2019-02-27 12:55:15,101 INFO L273 TraceCheckUtils]: 22: Hoare triple {1706#(and (< 10 main_n) (<= main_i 44))} assume !(i <= n * 4); {1693#false} is VALID [2019-02-27 12:55:15,104 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:15,104 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:55:15,746 INFO L273 TraceCheckUtils]: 22: Hoare triple {1788#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {1693#false} is VALID [2019-02-27 12:55:15,747 INFO L273 TraceCheckUtils]: 21: Hoare triple {1792#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {1788#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:55:15,748 INFO L273 TraceCheckUtils]: 20: Hoare triple {1796#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {1792#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:55:15,750 INFO L273 TraceCheckUtils]: 19: Hoare triple {1800#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {1796#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:55:15,750 INFO L273 TraceCheckUtils]: 18: Hoare triple {1800#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {1800#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:55:15,751 INFO L273 TraceCheckUtils]: 17: Hoare triple {1807#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {1800#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:55:15,752 INFO L273 TraceCheckUtils]: 16: Hoare triple {1807#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {1807#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:55:15,753 INFO L273 TraceCheckUtils]: 15: Hoare triple {1814#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {1807#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:55:15,754 INFO L273 TraceCheckUtils]: 14: Hoare triple {1814#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {1814#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:55:15,755 INFO L273 TraceCheckUtils]: 13: Hoare triple {1821#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {1814#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:55:15,756 INFO L273 TraceCheckUtils]: 12: Hoare triple {1821#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {1821#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:55:15,757 INFO L273 TraceCheckUtils]: 11: Hoare triple {1828#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1821#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:55:15,757 INFO L273 TraceCheckUtils]: 10: Hoare triple {1828#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {1828#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:55:15,759 INFO L273 TraceCheckUtils]: 9: Hoare triple {1835#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {1828#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:55:15,759 INFO L273 TraceCheckUtils]: 8: Hoare triple {1835#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {1835#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:55:15,760 INFO L273 TraceCheckUtils]: 7: Hoare triple {1842#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1835#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:55:15,761 INFO L273 TraceCheckUtils]: 6: Hoare triple {1842#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {1842#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:55:15,762 INFO L273 TraceCheckUtils]: 5: Hoare triple {1849#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1842#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:55:15,763 INFO L273 TraceCheckUtils]: 4: Hoare triple {1849#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {1849#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:55:15,764 INFO L273 TraceCheckUtils]: 3: Hoare triple {1856#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1849#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:55:15,765 INFO L273 TraceCheckUtils]: 2: Hoare triple {1856#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {1856#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:55:15,766 INFO L273 TraceCheckUtils]: 1: Hoare triple {1863#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {1856#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:55:15,767 INFO L273 TraceCheckUtils]: 0: Hoare triple {1692#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {1863#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:55:15,771 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:15,790 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:55:15,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 38 [2019-02-27 12:55:15,790 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:55:15,791 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 23 [2019-02-27 12:55:15,791 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:55:15,791 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 27 states. [2019-02-27 12:55:15,850 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 45 edges. 45 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:55:15,850 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-02-27 12:55:15,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-02-27 12:55:15,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=1318, Unknown=0, NotChecked=0, Total=1560 [2019-02-27 12:55:15,852 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 27 states. [2019-02-27 12:55:17,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:17,004 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2019-02-27 12:55:17,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-02-27 12:55:17,004 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 23 [2019-02-27 12:55:17,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:55:17,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-02-27 12:55:17,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 28 transitions. [2019-02-27 12:55:17,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-02-27 12:55:17,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 28 transitions. [2019-02-27 12:55:17,007 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 15 states and 28 transitions. [2019-02-27 12:55:17,050 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:55:17,051 INFO L225 Difference]: With dead ends: 28 [2019-02-27 12:55:17,051 INFO L226 Difference]: Without dead ends: 27 [2019-02-27 12:55:17,053 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=242, Invalid=1318, Unknown=0, NotChecked=0, Total=1560 [2019-02-27 12:55:17,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-02-27 12:55:17,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2019-02-27 12:55:17,145 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:55:17,145 INFO L82 GeneralOperation]: Start isEquivalent. First operand 27 states. Second operand 26 states. [2019-02-27 12:55:17,145 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand 26 states. [2019-02-27 12:55:17,145 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 26 states. [2019-02-27 12:55:17,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:17,146 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2019-02-27 12:55:17,146 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2019-02-27 12:55:17,146 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:55:17,146 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:55:17,146 INFO L74 IsIncluded]: Start isIncluded. First operand 26 states. Second operand 27 states. [2019-02-27 12:55:17,146 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 27 states. [2019-02-27 12:55:17,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:17,147 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2019-02-27 12:55:17,147 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2019-02-27 12:55:17,148 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:55:17,148 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:55:17,148 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:55:17,148 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:55:17,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-02-27 12:55:17,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2019-02-27 12:55:17,149 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 23 [2019-02-27 12:55:17,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:55:17,149 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2019-02-27 12:55:17,149 INFO L481 AbstractCegarLoop]: Interpolant automaton has 27 states. [2019-02-27 12:55:17,150 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2019-02-27 12:55:17,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-02-27 12:55:17,150 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:55:17,150 INFO L402 BasicCegarLoop]: trace histogram [12, 11, 1, 1] [2019-02-27 12:55:17,151 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:55:17,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:55:17,151 INFO L82 PathProgramCache]: Analyzing trace with hash 107644982, now seen corresponding path program 11 times [2019-02-27 12:55:17,151 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:55:17,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:55:17,152 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 12:55:17,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:55:17,152 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:55:17,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:18,013 INFO L273 TraceCheckUtils]: 0: Hoare triple {1999#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {2001#(and (or (<= main_i 0) (<= main_n 11)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)))} is VALID [2019-02-27 12:55:18,015 INFO L273 TraceCheckUtils]: 1: Hoare triple {2001#(and (or (<= main_i 0) (<= main_n 11)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)))} assume a[i] != 23;i := i + 4; {2002#(and (or (< 11 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 11) (<= main_i 4)))} is VALID [2019-02-27 12:55:18,016 INFO L273 TraceCheckUtils]: 2: Hoare triple {2002#(and (or (< 11 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 11) (<= main_i 4)))} assume i <= n * 4; {2002#(and (or (< 11 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 11) (<= main_i 4)))} is VALID [2019-02-27 12:55:18,017 INFO L273 TraceCheckUtils]: 3: Hoare triple {2002#(and (or (< 11 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 11) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {2003#(and (or (<= main_i 8) (<= main_n 11)) (or (< 11 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:18,018 INFO L273 TraceCheckUtils]: 4: Hoare triple {2003#(and (or (<= main_i 8) (<= main_n 11)) (or (< 11 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {2003#(and (or (<= main_i 8) (<= main_n 11)) (or (< 11 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:18,020 INFO L273 TraceCheckUtils]: 5: Hoare triple {2003#(and (or (<= main_i 8) (<= main_n 11)) (or (< 11 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {2004#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)) (or (<= main_n 11) (<= main_i 12)))} is VALID [2019-02-27 12:55:18,020 INFO L273 TraceCheckUtils]: 6: Hoare triple {2004#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)) (or (<= main_n 11) (<= main_i 12)))} assume i <= n * 4; {2004#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)) (or (<= main_n 11) (<= main_i 12)))} is VALID [2019-02-27 12:55:18,022 INFO L273 TraceCheckUtils]: 7: Hoare triple {2004#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)) (or (<= main_n 11) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {2005#(and (or (<= main_n 11) (<= main_i 16)) (or (< 11 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:18,022 INFO L273 TraceCheckUtils]: 8: Hoare triple {2005#(and (or (<= main_n 11) (<= main_i 16)) (or (< 11 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {2005#(and (or (<= main_n 11) (<= main_i 16)) (or (< 11 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:18,024 INFO L273 TraceCheckUtils]: 9: Hoare triple {2005#(and (or (<= main_n 11) (<= main_i 16)) (or (< 11 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {2006#(and (or (<= main_i 20) (<= main_n 11)) (or (< 11 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:18,025 INFO L273 TraceCheckUtils]: 10: Hoare triple {2006#(and (or (<= main_i 20) (<= main_n 11)) (or (< 11 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {2006#(and (or (<= main_i 20) (<= main_n 11)) (or (< 11 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:18,026 INFO L273 TraceCheckUtils]: 11: Hoare triple {2006#(and (or (<= main_i 20) (<= main_n 11)) (or (< 11 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {2007#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)) (or (<= main_i 24) (<= main_n 11)))} is VALID [2019-02-27 12:55:18,027 INFO L273 TraceCheckUtils]: 12: Hoare triple {2007#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)) (or (<= main_i 24) (<= main_n 11)))} assume i <= n * 4; {2007#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)) (or (<= main_i 24) (<= main_n 11)))} is VALID [2019-02-27 12:55:18,028 INFO L273 TraceCheckUtils]: 13: Hoare triple {2007#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)) (or (<= main_i 24) (<= main_n 11)))} assume a[i] != 23;i := i + 4; {2008#(and (or (<= main_n 11) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)))} is VALID [2019-02-27 12:55:18,029 INFO L273 TraceCheckUtils]: 14: Hoare triple {2008#(and (or (<= main_n 11) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)))} assume i <= n * 4; {2008#(and (or (<= main_n 11) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)))} is VALID [2019-02-27 12:55:18,030 INFO L273 TraceCheckUtils]: 15: Hoare triple {2008#(and (or (<= main_n 11) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)))} assume a[i] != 23;i := i + 4; {2009#(and (or (<= main_i 32) (<= main_n 11)) (or (< 11 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:18,031 INFO L273 TraceCheckUtils]: 16: Hoare triple {2009#(and (or (<= main_i 32) (<= main_n 11)) (or (< 11 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {2009#(and (or (<= main_i 32) (<= main_n 11)) (or (< 11 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:18,032 INFO L273 TraceCheckUtils]: 17: Hoare triple {2009#(and (or (<= main_i 32) (<= main_n 11)) (or (< 11 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {2010#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 11 main_n)) (or (<= main_i 36) (<= main_n 11)))} is VALID [2019-02-27 12:55:18,033 INFO L273 TraceCheckUtils]: 18: Hoare triple {2010#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 11 main_n)) (or (<= main_i 36) (<= main_n 11)))} assume i <= n * 4; {2010#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 11 main_n)) (or (<= main_i 36) (<= main_n 11)))} is VALID [2019-02-27 12:55:18,034 INFO L273 TraceCheckUtils]: 19: Hoare triple {2010#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 11 main_n)) (or (<= main_i 36) (<= main_n 11)))} assume a[i] != 23;i := i + 4; {2011#(and (or (<= main_i 40) (<= main_n 11)) (or (< 11 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:18,035 INFO L273 TraceCheckUtils]: 20: Hoare triple {2011#(and (or (<= main_i 40) (<= main_n 11)) (or (< 11 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {2011#(and (or (<= main_i 40) (<= main_n 11)) (or (< 11 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:18,036 INFO L273 TraceCheckUtils]: 21: Hoare triple {2011#(and (or (<= main_i 40) (<= main_n 11)) (or (< 11 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {2012#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 11 main_n)) (or (<= main_n 11) (<= main_i 44)))} is VALID [2019-02-27 12:55:18,037 INFO L273 TraceCheckUtils]: 22: Hoare triple {2012#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 11 main_n)) (or (<= main_n 11) (<= main_i 44)))} assume i <= n * 4; {2013#(and (or (< 11 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 44))} is VALID [2019-02-27 12:55:18,039 INFO L273 TraceCheckUtils]: 23: Hoare triple {2013#(and (or (< 11 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 44))} assume a[i] != 23;i := i + 4; {2014#(and (< 11 main_n) (<= main_i 48))} is VALID [2019-02-27 12:55:18,039 INFO L273 TraceCheckUtils]: 24: Hoare triple {2014#(and (< 11 main_n) (<= main_i 48))} assume !(i <= n * 4); {2000#false} is VALID [2019-02-27 12:55:18,043 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:18,043 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:55:18,043 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:55:18,044 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:55:18,044 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:55:18,044 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:55:18,044 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:55:18,053 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-27 12:55:18,053 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-27 12:55:18,067 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2019-02-27 12:55:18,067 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 12:55:18,068 WARN L254 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 29 conjunts are in the unsatisfiable core [2019-02-27 12:55:18,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:18,081 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:55:18,094 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:55:18,096 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:55:18,101 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:55:18,102 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:55:18,104 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:55:18,105 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_15]. (and (= main_a (store v_main_a_15 (* 4 main_n) 23)) (= main_i 0)) [2019-02-27 12:55:18,105 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:55:18,508 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:55:18,510 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:55:18,517 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:55:18,517 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:55:18,520 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:55:18,520 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 44 .cse0) (not (= (select main_a 44) 23)) (= 23 (select main_a .cse0)) (<= main_i 48))) [2019-02-27 12:55:18,521 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 44 .cse0)) (<= 44 .cse0) (<= main_i 48))) [2019-02-27 12:55:18,540 INFO L273 TraceCheckUtils]: 0: Hoare triple {1999#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {2018#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:18,540 INFO L273 TraceCheckUtils]: 1: Hoare triple {2018#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2022#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:55:18,541 INFO L273 TraceCheckUtils]: 2: Hoare triple {2022#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {2022#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:55:18,541 INFO L273 TraceCheckUtils]: 3: Hoare triple {2022#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {2029#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:18,542 INFO L273 TraceCheckUtils]: 4: Hoare triple {2029#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2029#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:18,543 INFO L273 TraceCheckUtils]: 5: Hoare triple {2029#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2036#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:55:18,543 INFO L273 TraceCheckUtils]: 6: Hoare triple {2036#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {2036#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:55:18,544 INFO L273 TraceCheckUtils]: 7: Hoare triple {2036#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {2043#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:18,545 INFO L273 TraceCheckUtils]: 8: Hoare triple {2043#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2043#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:18,546 INFO L273 TraceCheckUtils]: 9: Hoare triple {2043#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2050#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:18,547 INFO L273 TraceCheckUtils]: 10: Hoare triple {2050#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2050#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:18,547 INFO L273 TraceCheckUtils]: 11: Hoare triple {2050#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2057#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:18,548 INFO L273 TraceCheckUtils]: 12: Hoare triple {2057#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2057#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:18,549 INFO L273 TraceCheckUtils]: 13: Hoare triple {2057#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2064#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:18,550 INFO L273 TraceCheckUtils]: 14: Hoare triple {2064#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2064#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:18,551 INFO L273 TraceCheckUtils]: 15: Hoare triple {2064#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2071#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:18,551 INFO L273 TraceCheckUtils]: 16: Hoare triple {2071#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2071#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:18,552 INFO L273 TraceCheckUtils]: 17: Hoare triple {2071#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2078#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:18,553 INFO L273 TraceCheckUtils]: 18: Hoare triple {2078#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2078#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:18,554 INFO L273 TraceCheckUtils]: 19: Hoare triple {2078#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2085#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:18,554 INFO L273 TraceCheckUtils]: 20: Hoare triple {2085#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2085#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:18,555 INFO L273 TraceCheckUtils]: 21: Hoare triple {2085#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2092#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:18,556 INFO L273 TraceCheckUtils]: 22: Hoare triple {2092#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2096#(and (= main_i 44) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:18,557 INFO L273 TraceCheckUtils]: 23: Hoare triple {2096#(and (= main_i 44) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2014#(and (< 11 main_n) (<= main_i 48))} is VALID [2019-02-27 12:55:18,558 INFO L273 TraceCheckUtils]: 24: Hoare triple {2014#(and (< 11 main_n) (<= main_i 48))} assume !(i <= n * 4); {2000#false} is VALID [2019-02-27 12:55:18,561 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:18,561 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:55:19,228 INFO L273 TraceCheckUtils]: 24: Hoare triple {2103#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {2000#false} is VALID [2019-02-27 12:55:19,229 INFO L273 TraceCheckUtils]: 23: Hoare triple {2107#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {2103#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:55:19,230 INFO L273 TraceCheckUtils]: 22: Hoare triple {2111#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {2107#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:55:19,231 INFO L273 TraceCheckUtils]: 21: Hoare triple {2115#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {2111#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:55:19,232 INFO L273 TraceCheckUtils]: 20: Hoare triple {2115#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {2115#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:55:19,233 INFO L273 TraceCheckUtils]: 19: Hoare triple {2122#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {2115#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:55:19,234 INFO L273 TraceCheckUtils]: 18: Hoare triple {2122#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {2122#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:55:19,235 INFO L273 TraceCheckUtils]: 17: Hoare triple {2129#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {2122#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:55:19,235 INFO L273 TraceCheckUtils]: 16: Hoare triple {2129#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {2129#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:55:19,237 INFO L273 TraceCheckUtils]: 15: Hoare triple {2136#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {2129#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:55:19,237 INFO L273 TraceCheckUtils]: 14: Hoare triple {2136#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {2136#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:55:19,239 INFO L273 TraceCheckUtils]: 13: Hoare triple {2143#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2136#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:55:19,239 INFO L273 TraceCheckUtils]: 12: Hoare triple {2143#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {2143#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:55:19,240 INFO L273 TraceCheckUtils]: 11: Hoare triple {2150#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {2143#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:55:19,241 INFO L273 TraceCheckUtils]: 10: Hoare triple {2150#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {2150#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:55:19,242 INFO L273 TraceCheckUtils]: 9: Hoare triple {2157#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2150#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:55:19,243 INFO L273 TraceCheckUtils]: 8: Hoare triple {2157#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {2157#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:55:19,244 INFO L273 TraceCheckUtils]: 7: Hoare triple {2164#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2157#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:55:19,245 INFO L273 TraceCheckUtils]: 6: Hoare triple {2164#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {2164#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:55:19,246 INFO L273 TraceCheckUtils]: 5: Hoare triple {2171#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2164#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:55:19,247 INFO L273 TraceCheckUtils]: 4: Hoare triple {2171#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {2171#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:55:19,248 INFO L273 TraceCheckUtils]: 3: Hoare triple {2178#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {2171#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:55:19,249 INFO L273 TraceCheckUtils]: 2: Hoare triple {2178#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {2178#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:55:19,250 INFO L273 TraceCheckUtils]: 1: Hoare triple {2185#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2178#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:55:19,251 INFO L273 TraceCheckUtils]: 0: Hoare triple {1999#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {2185#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:55:19,255 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:19,274 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:55:19,274 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 41 [2019-02-27 12:55:19,274 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:55:19,274 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 25 [2019-02-27 12:55:19,275 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:55:19,275 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 29 states. [2019-02-27 12:55:19,334 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 49 edges. 49 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:55:19,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-02-27 12:55:19,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-02-27 12:55:19,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=274, Invalid=1532, Unknown=0, NotChecked=0, Total=1806 [2019-02-27 12:55:19,336 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 29 states. [2019-02-27 12:55:20,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:20,413 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2019-02-27 12:55:20,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-02-27 12:55:20,414 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 25 [2019-02-27 12:55:20,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:55:20,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-02-27 12:55:20,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 30 transitions. [2019-02-27 12:55:20,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-02-27 12:55:20,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 30 transitions. [2019-02-27 12:55:20,417 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states and 30 transitions. [2019-02-27 12:55:20,451 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:55:20,452 INFO L225 Difference]: With dead ends: 30 [2019-02-27 12:55:20,453 INFO L226 Difference]: Without dead ends: 29 [2019-02-27 12:55:20,454 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=274, Invalid=1532, Unknown=0, NotChecked=0, Total=1806 [2019-02-27 12:55:20,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-02-27 12:55:20,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2019-02-27 12:55:20,491 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:55:20,491 INFO L82 GeneralOperation]: Start isEquivalent. First operand 29 states. Second operand 28 states. [2019-02-27 12:55:20,492 INFO L74 IsIncluded]: Start isIncluded. First operand 29 states. Second operand 28 states. [2019-02-27 12:55:20,492 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 28 states. [2019-02-27 12:55:20,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:20,493 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2019-02-27 12:55:20,493 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2019-02-27 12:55:20,494 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:55:20,494 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:55:20,494 INFO L74 IsIncluded]: Start isIncluded. First operand 28 states. Second operand 29 states. [2019-02-27 12:55:20,494 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 29 states. [2019-02-27 12:55:20,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:20,495 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2019-02-27 12:55:20,495 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2019-02-27 12:55:20,495 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:55:20,495 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:55:20,495 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:55:20,495 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:55:20,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-02-27 12:55:20,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2019-02-27 12:55:20,496 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 25 [2019-02-27 12:55:20,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:55:20,496 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2019-02-27 12:55:20,497 INFO L481 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-02-27 12:55:20,497 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2019-02-27 12:55:20,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-02-27 12:55:20,497 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:55:20,497 INFO L402 BasicCegarLoop]: trace histogram [13, 12, 1, 1] [2019-02-27 12:55:20,498 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:55:20,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:55:20,498 INFO L82 PathProgramCache]: Analyzing trace with hash 367613688, now seen corresponding path program 12 times [2019-02-27 12:55:20,498 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:55:20,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:55:20,499 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 12:55:20,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:55:20,499 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:55:20,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:21,344 INFO L273 TraceCheckUtils]: 0: Hoare triple {2331#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {2333#(and (or (<= main_i 0) (<= main_n 12)) (= 23 (select main_a (* 4 main_n))) (or (< 12 main_n) (<= 0 main_i)))} is VALID [2019-02-27 12:55:21,346 INFO L273 TraceCheckUtils]: 1: Hoare triple {2333#(and (or (<= main_i 0) (<= main_n 12)) (= 23 (select main_a (* 4 main_n))) (or (< 12 main_n) (<= 0 main_i)))} assume a[i] != 23;i := i + 4; {2334#(and (or (<= main_n 12) (<= main_i 4)) (or (< 12 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:21,347 INFO L273 TraceCheckUtils]: 2: Hoare triple {2334#(and (or (<= main_n 12) (<= main_i 4)) (or (< 12 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2334#(and (or (<= main_n 12) (<= main_i 4)) (or (< 12 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:21,348 INFO L273 TraceCheckUtils]: 3: Hoare triple {2334#(and (or (<= main_n 12) (<= main_i 4)) (or (< 12 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2335#(and (or (< 12 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:21,349 INFO L273 TraceCheckUtils]: 4: Hoare triple {2335#(and (or (< 12 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2335#(and (or (< 12 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:21,350 INFO L273 TraceCheckUtils]: 5: Hoare triple {2335#(and (or (< 12 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2336#(and (or (< 12 main_n) (<= 12 main_i)) (or (<= main_n 12) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:21,351 INFO L273 TraceCheckUtils]: 6: Hoare triple {2336#(and (or (< 12 main_n) (<= 12 main_i)) (or (<= main_n 12) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2336#(and (or (< 12 main_n) (<= 12 main_i)) (or (<= main_n 12) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:21,352 INFO L273 TraceCheckUtils]: 7: Hoare triple {2336#(and (or (< 12 main_n) (<= 12 main_i)) (or (<= main_n 12) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2337#(and (or (<= main_n 12) (<= main_i 16)) (or (< 12 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:21,353 INFO L273 TraceCheckUtils]: 8: Hoare triple {2337#(and (or (<= main_n 12) (<= main_i 16)) (or (< 12 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2337#(and (or (<= main_n 12) (<= main_i 16)) (or (< 12 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:21,354 INFO L273 TraceCheckUtils]: 9: Hoare triple {2337#(and (or (<= main_n 12) (<= main_i 16)) (or (< 12 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2338#(and (or (< 12 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 20) (<= main_n 12)))} is VALID [2019-02-27 12:55:21,355 INFO L273 TraceCheckUtils]: 10: Hoare triple {2338#(and (or (< 12 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 20) (<= main_n 12)))} assume i <= n * 4; {2338#(and (or (< 12 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 20) (<= main_n 12)))} is VALID [2019-02-27 12:55:21,356 INFO L273 TraceCheckUtils]: 11: Hoare triple {2338#(and (or (< 12 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 20) (<= main_n 12)))} assume a[i] != 23;i := i + 4; {2339#(and (or (<= main_n 12) (<= main_i 24)) (or (< 12 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:21,357 INFO L273 TraceCheckUtils]: 12: Hoare triple {2339#(and (or (<= main_n 12) (<= main_i 24)) (or (< 12 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2339#(and (or (<= main_n 12) (<= main_i 24)) (or (< 12 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:21,359 INFO L273 TraceCheckUtils]: 13: Hoare triple {2339#(and (or (<= main_n 12) (<= main_i 24)) (or (< 12 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2340#(and (or (<= main_n 12) (<= main_i 28)) (or (< 12 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:21,375 INFO L273 TraceCheckUtils]: 14: Hoare triple {2340#(and (or (<= main_n 12) (<= main_i 28)) (or (< 12 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2340#(and (or (<= main_n 12) (<= main_i 28)) (or (< 12 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:21,376 INFO L273 TraceCheckUtils]: 15: Hoare triple {2340#(and (or (<= main_n 12) (<= main_i 28)) (or (< 12 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2341#(and (or (<= main_i 32) (<= main_n 12)) (or (< 12 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:21,376 INFO L273 TraceCheckUtils]: 16: Hoare triple {2341#(and (or (<= main_i 32) (<= main_n 12)) (or (< 12 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2341#(and (or (<= main_i 32) (<= main_n 12)) (or (< 12 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:21,377 INFO L273 TraceCheckUtils]: 17: Hoare triple {2341#(and (or (<= main_i 32) (<= main_n 12)) (or (< 12 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2342#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 12)) (or (< 12 main_n) (<= 36 main_i)))} is VALID [2019-02-27 12:55:21,378 INFO L273 TraceCheckUtils]: 18: Hoare triple {2342#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 12)) (or (< 12 main_n) (<= 36 main_i)))} assume i <= n * 4; {2342#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 12)) (or (< 12 main_n) (<= 36 main_i)))} is VALID [2019-02-27 12:55:21,378 INFO L273 TraceCheckUtils]: 19: Hoare triple {2342#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 12)) (or (< 12 main_n) (<= 36 main_i)))} assume a[i] != 23;i := i + 4; {2343#(and (or (< 12 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:21,379 INFO L273 TraceCheckUtils]: 20: Hoare triple {2343#(and (or (< 12 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2343#(and (or (< 12 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:21,380 INFO L273 TraceCheckUtils]: 21: Hoare triple {2343#(and (or (< 12 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2344#(and (or (< 12 main_n) (<= 44 main_i)) (or (<= main_n 12) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:21,380 INFO L273 TraceCheckUtils]: 22: Hoare triple {2344#(and (or (< 12 main_n) (<= 44 main_i)) (or (<= main_n 12) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2344#(and (or (< 12 main_n) (<= 44 main_i)) (or (<= main_n 12) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:21,382 INFO L273 TraceCheckUtils]: 23: Hoare triple {2344#(and (or (< 12 main_n) (<= 44 main_i)) (or (<= main_n 12) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2345#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 12) (<= main_i 48)) (or (< 12 main_n) (<= (* 4 main_n) main_i)))))} is VALID [2019-02-27 12:55:21,383 INFO L273 TraceCheckUtils]: 24: Hoare triple {2345#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 12) (<= main_i 48)) (or (< 12 main_n) (<= (* 4 main_n) main_i)))))} assume i <= n * 4; {2346#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 12 main_n) (<= main_i 48))))} is VALID [2019-02-27 12:55:21,384 INFO L273 TraceCheckUtils]: 25: Hoare triple {2346#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 12 main_n) (<= main_i 48))))} assume a[i] != 23;i := i + 4; {2347#(and (<= main_i 52) (<= 13 main_n))} is VALID [2019-02-27 12:55:21,385 INFO L273 TraceCheckUtils]: 26: Hoare triple {2347#(and (<= main_i 52) (<= 13 main_n))} assume !(i <= n * 4); {2332#false} is VALID [2019-02-27 12:55:21,389 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:21,390 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:55:21,390 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:55:21,390 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:55:21,390 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:55:21,390 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:55:21,390 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:55:21,398 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-27 12:55:21,399 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-27 12:55:21,407 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-27 12:55:21,407 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 12:55:21,408 WARN L254 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 31 conjunts are in the unsatisfiable core [2019-02-27 12:55:21,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:21,417 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:55:21,423 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:55:21,425 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:55:21,435 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:55:21,435 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:55:21,437 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:55:21,437 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_16]. (and (= main_a (store v_main_a_16 (* 4 main_n) 23)) (= main_i 0)) [2019-02-27 12:55:21,438 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:55:22,095 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:55:22,103 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:55:22,118 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:55:22,118 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:55:22,120 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:55:22,120 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 52) (not (= 23 (select main_a 48))) (<= 48 .cse0) (= 23 (select main_a .cse0)))) [2019-02-27 12:55:22,120 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 52) (<= 48 .cse0) (not (= 48 .cse0)))) [2019-02-27 12:55:22,191 INFO L273 TraceCheckUtils]: 0: Hoare triple {2331#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {2351#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:22,194 INFO L273 TraceCheckUtils]: 1: Hoare triple {2351#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2355#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:55:22,194 INFO L273 TraceCheckUtils]: 2: Hoare triple {2355#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {2355#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:55:22,197 INFO L273 TraceCheckUtils]: 3: Hoare triple {2355#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {2362#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:22,197 INFO L273 TraceCheckUtils]: 4: Hoare triple {2362#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2362#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:22,198 INFO L273 TraceCheckUtils]: 5: Hoare triple {2362#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2369#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:55:22,198 INFO L273 TraceCheckUtils]: 6: Hoare triple {2369#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {2369#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:55:22,199 INFO L273 TraceCheckUtils]: 7: Hoare triple {2369#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {2376#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:22,199 INFO L273 TraceCheckUtils]: 8: Hoare triple {2376#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2376#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:22,199 INFO L273 TraceCheckUtils]: 9: Hoare triple {2376#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2383#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:22,200 INFO L273 TraceCheckUtils]: 10: Hoare triple {2383#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2383#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:22,200 INFO L273 TraceCheckUtils]: 11: Hoare triple {2383#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2390#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:22,201 INFO L273 TraceCheckUtils]: 12: Hoare triple {2390#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2390#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:22,202 INFO L273 TraceCheckUtils]: 13: Hoare triple {2390#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2397#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:22,202 INFO L273 TraceCheckUtils]: 14: Hoare triple {2397#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2397#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:22,203 INFO L273 TraceCheckUtils]: 15: Hoare triple {2397#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2404#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:22,204 INFO L273 TraceCheckUtils]: 16: Hoare triple {2404#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2404#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:22,205 INFO L273 TraceCheckUtils]: 17: Hoare triple {2404#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2411#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:22,206 INFO L273 TraceCheckUtils]: 18: Hoare triple {2411#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2411#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:22,206 INFO L273 TraceCheckUtils]: 19: Hoare triple {2411#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2418#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:22,207 INFO L273 TraceCheckUtils]: 20: Hoare triple {2418#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2418#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:22,208 INFO L273 TraceCheckUtils]: 21: Hoare triple {2418#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2425#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:22,208 INFO L273 TraceCheckUtils]: 22: Hoare triple {2425#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2425#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:22,209 INFO L273 TraceCheckUtils]: 23: Hoare triple {2425#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2432#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:22,210 INFO L273 TraceCheckUtils]: 24: Hoare triple {2432#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2436#(and (= main_i 48) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:22,211 INFO L273 TraceCheckUtils]: 25: Hoare triple {2436#(and (= main_i 48) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2347#(and (<= main_i 52) (<= 13 main_n))} is VALID [2019-02-27 12:55:22,212 INFO L273 TraceCheckUtils]: 26: Hoare triple {2347#(and (<= main_i 52) (<= 13 main_n))} assume !(i <= n * 4); {2332#false} is VALID [2019-02-27 12:55:22,214 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:22,214 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:55:22,936 INFO L273 TraceCheckUtils]: 26: Hoare triple {2443#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {2332#false} is VALID [2019-02-27 12:55:22,937 INFO L273 TraceCheckUtils]: 25: Hoare triple {2447#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {2443#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:55:22,938 INFO L273 TraceCheckUtils]: 24: Hoare triple {2451#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {2447#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:55:22,939 INFO L273 TraceCheckUtils]: 23: Hoare triple {2455#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {2451#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:55:22,940 INFO L273 TraceCheckUtils]: 22: Hoare triple {2455#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {2455#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:55:22,941 INFO L273 TraceCheckUtils]: 21: Hoare triple {2462#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {2455#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:55:22,942 INFO L273 TraceCheckUtils]: 20: Hoare triple {2462#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {2462#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:55:22,943 INFO L273 TraceCheckUtils]: 19: Hoare triple {2469#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {2462#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:55:22,943 INFO L273 TraceCheckUtils]: 18: Hoare triple {2469#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {2469#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:55:22,945 INFO L273 TraceCheckUtils]: 17: Hoare triple {2476#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {2469#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:55:22,945 INFO L273 TraceCheckUtils]: 16: Hoare triple {2476#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {2476#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:55:22,946 INFO L273 TraceCheckUtils]: 15: Hoare triple {2483#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2476#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:55:22,947 INFO L273 TraceCheckUtils]: 14: Hoare triple {2483#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {2483#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:55:22,948 INFO L273 TraceCheckUtils]: 13: Hoare triple {2490#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {2483#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:55:22,949 INFO L273 TraceCheckUtils]: 12: Hoare triple {2490#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {2490#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:55:22,950 INFO L273 TraceCheckUtils]: 11: Hoare triple {2497#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2490#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:55:22,950 INFO L273 TraceCheckUtils]: 10: Hoare triple {2497#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {2497#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:55:22,952 INFO L273 TraceCheckUtils]: 9: Hoare triple {2504#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2497#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:55:22,952 INFO L273 TraceCheckUtils]: 8: Hoare triple {2504#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {2504#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:55:22,953 INFO L273 TraceCheckUtils]: 7: Hoare triple {2511#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2504#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:55:22,954 INFO L273 TraceCheckUtils]: 6: Hoare triple {2511#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {2511#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:55:22,955 INFO L273 TraceCheckUtils]: 5: Hoare triple {2518#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {2511#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:55:22,956 INFO L273 TraceCheckUtils]: 4: Hoare triple {2518#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {2518#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:55:22,957 INFO L273 TraceCheckUtils]: 3: Hoare triple {2525#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2518#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:55:22,958 INFO L273 TraceCheckUtils]: 2: Hoare triple {2525#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {2525#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:55:22,959 INFO L273 TraceCheckUtils]: 1: Hoare triple {2532#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2525#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:55:22,960 INFO L273 TraceCheckUtils]: 0: Hoare triple {2331#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {2532#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:55:22,965 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:22,984 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:55:22,984 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 44 [2019-02-27 12:55:22,984 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:55:22,985 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 27 [2019-02-27 12:55:22,985 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:55:22,985 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 31 states. [2019-02-27 12:55:23,045 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 53 edges. 53 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:55:23,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-02-27 12:55:23,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-02-27 12:55:23,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=308, Invalid=1762, Unknown=0, NotChecked=0, Total=2070 [2019-02-27 12:55:23,047 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 31 states. [2019-02-27 12:55:24,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:24,418 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2019-02-27 12:55:24,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-02-27 12:55:24,418 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 27 [2019-02-27 12:55:24,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:55:24,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-02-27 12:55:24,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 32 transitions. [2019-02-27 12:55:24,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-02-27 12:55:24,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 32 transitions. [2019-02-27 12:55:24,421 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states and 32 transitions. [2019-02-27 12:55:24,477 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:55:24,478 INFO L225 Difference]: With dead ends: 32 [2019-02-27 12:55:24,478 INFO L226 Difference]: Without dead ends: 31 [2019-02-27 12:55:24,479 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=308, Invalid=1762, Unknown=0, NotChecked=0, Total=2070 [2019-02-27 12:55:24,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-02-27 12:55:24,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2019-02-27 12:55:24,506 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:55:24,506 INFO L82 GeneralOperation]: Start isEquivalent. First operand 31 states. Second operand 30 states. [2019-02-27 12:55:24,506 INFO L74 IsIncluded]: Start isIncluded. First operand 31 states. Second operand 30 states. [2019-02-27 12:55:24,506 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 30 states. [2019-02-27 12:55:24,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:24,507 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2019-02-27 12:55:24,508 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2019-02-27 12:55:24,508 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:55:24,508 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:55:24,508 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand 31 states. [2019-02-27 12:55:24,508 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 31 states. [2019-02-27 12:55:24,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:24,509 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2019-02-27 12:55:24,509 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2019-02-27 12:55:24,509 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:55:24,509 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:55:24,509 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:55:24,510 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:55:24,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-02-27 12:55:24,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2019-02-27 12:55:24,510 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 27 [2019-02-27 12:55:24,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:55:24,510 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2019-02-27 12:55:24,511 INFO L481 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-02-27 12:55:24,511 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2019-02-27 12:55:24,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-02-27 12:55:24,511 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:55:24,511 INFO L402 BasicCegarLoop]: trace histogram [14, 13, 1, 1] [2019-02-27 12:55:24,512 INFO L423 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:55:24,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:55:24,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1089436986, now seen corresponding path program 13 times [2019-02-27 12:55:24,512 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:55:24,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:55:24,513 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 12:55:24,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:55:24,513 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:55:24,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:25,387 INFO L273 TraceCheckUtils]: 0: Hoare triple {2688#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {2690#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)) (or (<= main_n 13) (<= main_i 0)))} is VALID [2019-02-27 12:55:25,388 INFO L273 TraceCheckUtils]: 1: Hoare triple {2690#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)) (or (<= main_n 13) (<= main_i 0)))} assume a[i] != 23;i := i + 4; {2691#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 13 main_n)) (or (<= main_n 13) (<= main_i 4)))} is VALID [2019-02-27 12:55:25,389 INFO L273 TraceCheckUtils]: 2: Hoare triple {2691#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 13 main_n)) (or (<= main_n 13) (<= main_i 4)))} assume i <= n * 4; {2691#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 13 main_n)) (or (<= main_n 13) (<= main_i 4)))} is VALID [2019-02-27 12:55:25,390 INFO L273 TraceCheckUtils]: 3: Hoare triple {2691#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 13 main_n)) (or (<= main_n 13) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {2692#(and (or (<= main_i 8) (<= main_n 13)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2019-02-27 12:55:25,391 INFO L273 TraceCheckUtils]: 4: Hoare triple {2692#(and (or (<= main_i 8) (<= main_n 13)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume i <= n * 4; {2692#(and (or (<= main_i 8) (<= main_n 13)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2019-02-27 12:55:25,392 INFO L273 TraceCheckUtils]: 5: Hoare triple {2692#(and (or (<= main_i 8) (<= main_n 13)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume a[i] != 23;i := i + 4; {2693#(and (or (<= main_n 13) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2019-02-27 12:55:25,393 INFO L273 TraceCheckUtils]: 6: Hoare triple {2693#(and (or (<= main_n 13) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume i <= n * 4; {2693#(and (or (<= main_n 13) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2019-02-27 12:55:25,394 INFO L273 TraceCheckUtils]: 7: Hoare triple {2693#(and (or (<= main_n 13) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume a[i] != 23;i := i + 4; {2694#(and (or (<= main_n 13) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2019-02-27 12:55:25,395 INFO L273 TraceCheckUtils]: 8: Hoare triple {2694#(and (or (<= main_n 13) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume i <= n * 4; {2694#(and (or (<= main_n 13) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2019-02-27 12:55:25,396 INFO L273 TraceCheckUtils]: 9: Hoare triple {2694#(and (or (<= main_n 13) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume a[i] != 23;i := i + 4; {2695#(and (or (< 13 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 13) (<= main_i 20)))} is VALID [2019-02-27 12:55:25,397 INFO L273 TraceCheckUtils]: 10: Hoare triple {2695#(and (or (< 13 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 13) (<= main_i 20)))} assume i <= n * 4; {2695#(and (or (< 13 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 13) (<= main_i 20)))} is VALID [2019-02-27 12:55:25,398 INFO L273 TraceCheckUtils]: 11: Hoare triple {2695#(and (or (< 13 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 13) (<= main_i 20)))} assume a[i] != 23;i := i + 4; {2696#(and (or (<= main_n 13) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2019-02-27 12:55:25,399 INFO L273 TraceCheckUtils]: 12: Hoare triple {2696#(and (or (<= main_n 13) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume i <= n * 4; {2696#(and (or (<= main_n 13) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2019-02-27 12:55:25,400 INFO L273 TraceCheckUtils]: 13: Hoare triple {2696#(and (or (<= main_n 13) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume a[i] != 23;i := i + 4; {2697#(and (or (<= main_n 13) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2019-02-27 12:55:25,401 INFO L273 TraceCheckUtils]: 14: Hoare triple {2697#(and (or (<= main_n 13) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume i <= n * 4; {2697#(and (or (<= main_n 13) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2019-02-27 12:55:25,402 INFO L273 TraceCheckUtils]: 15: Hoare triple {2697#(and (or (<= main_n 13) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume a[i] != 23;i := i + 4; {2698#(and (or (<= main_i 32) (<= main_n 13)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2019-02-27 12:55:25,403 INFO L273 TraceCheckUtils]: 16: Hoare triple {2698#(and (or (<= main_i 32) (<= main_n 13)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume i <= n * 4; {2698#(and (or (<= main_i 32) (<= main_n 13)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2019-02-27 12:55:25,404 INFO L273 TraceCheckUtils]: 17: Hoare triple {2698#(and (or (<= main_i 32) (<= main_n 13)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume a[i] != 23;i := i + 4; {2699#(and (or (<= main_i 36) (<= main_n 13)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 13 main_n)))} is VALID [2019-02-27 12:55:25,405 INFO L273 TraceCheckUtils]: 18: Hoare triple {2699#(and (or (<= main_i 36) (<= main_n 13)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 13 main_n)))} assume i <= n * 4; {2699#(and (or (<= main_i 36) (<= main_n 13)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 13 main_n)))} is VALID [2019-02-27 12:55:25,406 INFO L273 TraceCheckUtils]: 19: Hoare triple {2699#(and (or (<= main_i 36) (<= main_n 13)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 13 main_n)))} assume a[i] != 23;i := i + 4; {2700#(and (or (<= main_i 40) (<= main_n 13)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2019-02-27 12:55:25,407 INFO L273 TraceCheckUtils]: 20: Hoare triple {2700#(and (or (<= main_i 40) (<= main_n 13)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume i <= n * 4; {2700#(and (or (<= main_i 40) (<= main_n 13)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2019-02-27 12:55:25,408 INFO L273 TraceCheckUtils]: 21: Hoare triple {2700#(and (or (<= main_i 40) (<= main_n 13)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume a[i] != 23;i := i + 4; {2701#(and (or (< 13 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 13) (<= main_i 44)))} is VALID [2019-02-27 12:55:25,409 INFO L273 TraceCheckUtils]: 22: Hoare triple {2701#(and (or (< 13 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 13) (<= main_i 44)))} assume i <= n * 4; {2701#(and (or (< 13 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 13) (<= main_i 44)))} is VALID [2019-02-27 12:55:25,410 INFO L273 TraceCheckUtils]: 23: Hoare triple {2701#(and (or (< 13 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 13) (<= main_i 44)))} assume a[i] != 23;i := i + 4; {2702#(and (or (<= main_n 13) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2019-02-27 12:55:25,411 INFO L273 TraceCheckUtils]: 24: Hoare triple {2702#(and (or (<= main_n 13) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume i <= n * 4; {2702#(and (or (<= main_n 13) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2019-02-27 12:55:25,412 INFO L273 TraceCheckUtils]: 25: Hoare triple {2702#(and (or (<= main_n 13) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume a[i] != 23;i := i + 4; {2703#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 13 main_n)) (or (<= main_i 52) (<= main_n 13)))} is VALID [2019-02-27 12:55:25,413 INFO L273 TraceCheckUtils]: 26: Hoare triple {2703#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 13 main_n)) (or (<= main_i 52) (<= main_n 13)))} assume i <= n * 4; {2704#(and (<= main_i 52) (or (< 13 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} is VALID [2019-02-27 12:55:25,414 INFO L273 TraceCheckUtils]: 27: Hoare triple {2704#(and (<= main_i 52) (or (< 13 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} assume a[i] != 23;i := i + 4; {2705#(and (<= main_i 56) (< 13 main_n))} is VALID [2019-02-27 12:55:25,414 INFO L273 TraceCheckUtils]: 28: Hoare triple {2705#(and (<= main_i 56) (< 13 main_n))} assume !(i <= n * 4); {2689#false} is VALID [2019-02-27 12:55:25,420 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:25,420 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:55:25,420 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:55:25,420 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:55:25,420 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:55:25,420 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:55:25,420 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:55:25,429 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 12:55:25,429 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-27 12:55:25,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:25,439 WARN L254 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 33 conjunts are in the unsatisfiable core [2019-02-27 12:55:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:25,447 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:55:25,462 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:55:25,467 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:55:25,476 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:55:25,476 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:55:25,479 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:55:25,480 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_17]. (and (= main_i 0) (= main_a (store v_main_a_17 (* 4 main_n) 23))) [2019-02-27 12:55:25,480 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:55:25,986 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:55:25,988 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:55:25,993 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:55:25,993 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:55:25,996 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:55:25,996 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= (select main_a 52) 23)) (<= main_i 56) (= 23 (select main_a .cse0)) (<= 52 .cse0))) [2019-02-27 12:55:25,997 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 52 .cse0)) (<= main_i 56) (<= 52 .cse0))) [2019-02-27 12:55:26,018 INFO L273 TraceCheckUtils]: 0: Hoare triple {2688#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {2709#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:26,018 INFO L273 TraceCheckUtils]: 1: Hoare triple {2709#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2713#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:55:26,019 INFO L273 TraceCheckUtils]: 2: Hoare triple {2713#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {2713#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:55:26,019 INFO L273 TraceCheckUtils]: 3: Hoare triple {2713#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {2720#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:26,020 INFO L273 TraceCheckUtils]: 4: Hoare triple {2720#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2720#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:26,020 INFO L273 TraceCheckUtils]: 5: Hoare triple {2720#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2727#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:55:26,021 INFO L273 TraceCheckUtils]: 6: Hoare triple {2727#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {2727#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:55:26,022 INFO L273 TraceCheckUtils]: 7: Hoare triple {2727#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {2734#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:26,022 INFO L273 TraceCheckUtils]: 8: Hoare triple {2734#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2734#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:26,023 INFO L273 TraceCheckUtils]: 9: Hoare triple {2734#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2741#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:26,024 INFO L273 TraceCheckUtils]: 10: Hoare triple {2741#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2741#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:26,024 INFO L273 TraceCheckUtils]: 11: Hoare triple {2741#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2748#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:26,025 INFO L273 TraceCheckUtils]: 12: Hoare triple {2748#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2748#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:26,026 INFO L273 TraceCheckUtils]: 13: Hoare triple {2748#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2755#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:26,027 INFO L273 TraceCheckUtils]: 14: Hoare triple {2755#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2755#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:26,027 INFO L273 TraceCheckUtils]: 15: Hoare triple {2755#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2762#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:26,028 INFO L273 TraceCheckUtils]: 16: Hoare triple {2762#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2762#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:26,029 INFO L273 TraceCheckUtils]: 17: Hoare triple {2762#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2769#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:26,029 INFO L273 TraceCheckUtils]: 18: Hoare triple {2769#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2769#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:26,030 INFO L273 TraceCheckUtils]: 19: Hoare triple {2769#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2776#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:26,031 INFO L273 TraceCheckUtils]: 20: Hoare triple {2776#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2776#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:26,032 INFO L273 TraceCheckUtils]: 21: Hoare triple {2776#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2783#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:26,032 INFO L273 TraceCheckUtils]: 22: Hoare triple {2783#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2783#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:26,033 INFO L273 TraceCheckUtils]: 23: Hoare triple {2783#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2790#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:26,034 INFO L273 TraceCheckUtils]: 24: Hoare triple {2790#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2790#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:26,035 INFO L273 TraceCheckUtils]: 25: Hoare triple {2790#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2797#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:26,035 INFO L273 TraceCheckUtils]: 26: Hoare triple {2797#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2801#(and (= main_i 52) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:26,036 INFO L273 TraceCheckUtils]: 27: Hoare triple {2801#(and (= main_i 52) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2705#(and (<= main_i 56) (< 13 main_n))} is VALID [2019-02-27 12:55:26,037 INFO L273 TraceCheckUtils]: 28: Hoare triple {2705#(and (<= main_i 56) (< 13 main_n))} assume !(i <= n * 4); {2689#false} is VALID [2019-02-27 12:55:26,040 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:26,040 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:55:26,846 INFO L273 TraceCheckUtils]: 28: Hoare triple {2808#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {2689#false} is VALID [2019-02-27 12:55:26,847 INFO L273 TraceCheckUtils]: 27: Hoare triple {2812#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {2808#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:55:26,848 INFO L273 TraceCheckUtils]: 26: Hoare triple {2816#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {2812#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:55:26,849 INFO L273 TraceCheckUtils]: 25: Hoare triple {2820#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {2816#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:55:26,850 INFO L273 TraceCheckUtils]: 24: Hoare triple {2820#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {2820#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:55:26,851 INFO L273 TraceCheckUtils]: 23: Hoare triple {2827#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {2820#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:55:26,852 INFO L273 TraceCheckUtils]: 22: Hoare triple {2827#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {2827#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:55:26,853 INFO L273 TraceCheckUtils]: 21: Hoare triple {2834#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {2827#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:55:26,853 INFO L273 TraceCheckUtils]: 20: Hoare triple {2834#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {2834#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:55:26,854 INFO L273 TraceCheckUtils]: 19: Hoare triple {2841#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {2834#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:55:26,855 INFO L273 TraceCheckUtils]: 18: Hoare triple {2841#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {2841#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:55:26,856 INFO L273 TraceCheckUtils]: 17: Hoare triple {2848#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2841#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:55:26,857 INFO L273 TraceCheckUtils]: 16: Hoare triple {2848#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {2848#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:55:26,858 INFO L273 TraceCheckUtils]: 15: Hoare triple {2855#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {2848#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:55:26,859 INFO L273 TraceCheckUtils]: 14: Hoare triple {2855#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {2855#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:55:26,860 INFO L273 TraceCheckUtils]: 13: Hoare triple {2862#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2855#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:55:26,860 INFO L273 TraceCheckUtils]: 12: Hoare triple {2862#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {2862#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:55:26,861 INFO L273 TraceCheckUtils]: 11: Hoare triple {2869#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2862#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:55:26,862 INFO L273 TraceCheckUtils]: 10: Hoare triple {2869#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {2869#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:55:26,863 INFO L273 TraceCheckUtils]: 9: Hoare triple {2876#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2869#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:55:26,864 INFO L273 TraceCheckUtils]: 8: Hoare triple {2876#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {2876#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:55:26,865 INFO L273 TraceCheckUtils]: 7: Hoare triple {2883#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {2876#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:55:26,866 INFO L273 TraceCheckUtils]: 6: Hoare triple {2883#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {2883#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:55:26,867 INFO L273 TraceCheckUtils]: 5: Hoare triple {2890#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2883#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:55:26,867 INFO L273 TraceCheckUtils]: 4: Hoare triple {2890#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {2890#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:55:26,868 INFO L273 TraceCheckUtils]: 3: Hoare triple {2897#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2890#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:55:26,869 INFO L273 TraceCheckUtils]: 2: Hoare triple {2897#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {2897#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:55:26,870 INFO L273 TraceCheckUtils]: 1: Hoare triple {2904#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {2897#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:55:26,871 INFO L273 TraceCheckUtils]: 0: Hoare triple {2688#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {2904#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:55:26,876 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:26,898 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:55:26,898 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 47 [2019-02-27 12:55:26,898 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:55:26,898 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 29 [2019-02-27 12:55:26,899 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:55:26,899 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 33 states. [2019-02-27 12:55:26,992 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 57 edges. 57 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:55:26,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2019-02-27 12:55:26,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2019-02-27 12:55:26,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=344, Invalid=2008, Unknown=0, NotChecked=0, Total=2352 [2019-02-27 12:55:26,994 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 33 states. [2019-02-27 12:55:28,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:28,587 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2019-02-27 12:55:28,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-02-27 12:55:28,587 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 29 [2019-02-27 12:55:28,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:55:28,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-02-27 12:55:28,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 34 transitions. [2019-02-27 12:55:28,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-02-27 12:55:28,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 34 transitions. [2019-02-27 12:55:28,589 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 18 states and 34 transitions. [2019-02-27 12:55:28,623 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:55:28,624 INFO L225 Difference]: With dead ends: 34 [2019-02-27 12:55:28,624 INFO L226 Difference]: Without dead ends: 33 [2019-02-27 12:55:28,626 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=344, Invalid=2008, Unknown=0, NotChecked=0, Total=2352 [2019-02-27 12:55:28,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-02-27 12:55:28,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2019-02-27 12:55:28,661 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:55:28,661 INFO L82 GeneralOperation]: Start isEquivalent. First operand 33 states. Second operand 32 states. [2019-02-27 12:55:28,661 INFO L74 IsIncluded]: Start isIncluded. First operand 33 states. Second operand 32 states. [2019-02-27 12:55:28,661 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 32 states. [2019-02-27 12:55:28,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:28,662 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2019-02-27 12:55:28,663 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2019-02-27 12:55:28,663 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:55:28,663 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:55:28,663 INFO L74 IsIncluded]: Start isIncluded. First operand 32 states. Second operand 33 states. [2019-02-27 12:55:28,663 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 33 states. [2019-02-27 12:55:28,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:28,664 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2019-02-27 12:55:28,664 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2019-02-27 12:55:28,665 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:55:28,665 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:55:28,665 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:55:28,665 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:55:28,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-02-27 12:55:28,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2019-02-27 12:55:28,666 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 29 [2019-02-27 12:55:28,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:55:28,666 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2019-02-27 12:55:28,666 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2019-02-27 12:55:28,666 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2019-02-27 12:55:28,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-02-27 12:55:28,667 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:55:28,667 INFO L402 BasicCegarLoop]: trace histogram [15, 14, 1, 1] [2019-02-27 12:55:28,667 INFO L423 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:55:28,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:55:28,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1023075588, now seen corresponding path program 14 times [2019-02-27 12:55:28,668 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:55:28,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:55:28,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 12:55:28,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:55:28,669 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:55:28,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:29,070 WARN L181 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-02-27 12:55:29,606 WARN L181 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-02-27 12:55:30,420 WARN L181 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 7 [2019-02-27 12:55:30,422 INFO L273 TraceCheckUtils]: 0: Hoare triple {3070#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {3072#(and (or (<= 0 main_i) (< 14 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 0) (<= main_n 14)))} is VALID [2019-02-27 12:55:30,442 INFO L273 TraceCheckUtils]: 1: Hoare triple {3072#(and (or (<= 0 main_i) (< 14 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 0) (<= main_n 14)))} assume a[i] != 23;i := i + 4; {3073#(and (or (<= main_n 14) (<= main_i 4)) (or (< 14 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:30,445 INFO L273 TraceCheckUtils]: 2: Hoare triple {3073#(and (or (<= main_n 14) (<= main_i 4)) (or (< 14 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3073#(and (or (<= main_n 14) (<= main_i 4)) (or (< 14 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:30,446 INFO L273 TraceCheckUtils]: 3: Hoare triple {3073#(and (or (<= main_n 14) (<= main_i 4)) (or (< 14 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3074#(and (or (< 14 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:30,446 INFO L273 TraceCheckUtils]: 4: Hoare triple {3074#(and (or (< 14 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3074#(and (or (< 14 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:30,447 INFO L273 TraceCheckUtils]: 5: Hoare triple {3074#(and (or (< 14 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3075#(and (or (< 14 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 14) (<= main_i 12)))} is VALID [2019-02-27 12:55:30,448 INFO L273 TraceCheckUtils]: 6: Hoare triple {3075#(and (or (< 14 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 14) (<= main_i 12)))} assume i <= n * 4; {3075#(and (or (< 14 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 14) (<= main_i 12)))} is VALID [2019-02-27 12:55:30,449 INFO L273 TraceCheckUtils]: 7: Hoare triple {3075#(and (or (< 14 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 14) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {3076#(and (or (<= main_n 14) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (< 14 main_n) (<= 16 main_i)))} is VALID [2019-02-27 12:55:30,449 INFO L273 TraceCheckUtils]: 8: Hoare triple {3076#(and (or (<= main_n 14) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (< 14 main_n) (<= 16 main_i)))} assume i <= n * 4; {3076#(and (or (<= main_n 14) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (< 14 main_n) (<= 16 main_i)))} is VALID [2019-02-27 12:55:30,450 INFO L273 TraceCheckUtils]: 9: Hoare triple {3076#(and (or (<= main_n 14) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (< 14 main_n) (<= 16 main_i)))} assume a[i] != 23;i := i + 4; {3077#(and (or (< 14 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:30,451 INFO L273 TraceCheckUtils]: 10: Hoare triple {3077#(and (or (< 14 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3077#(and (or (< 14 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:30,452 INFO L273 TraceCheckUtils]: 11: Hoare triple {3077#(and (or (< 14 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3078#(and (or (<= main_n 14) (<= main_i 24)) (or (< 14 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:30,453 INFO L273 TraceCheckUtils]: 12: Hoare triple {3078#(and (or (<= main_n 14) (<= main_i 24)) (or (< 14 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3078#(and (or (<= main_n 14) (<= main_i 24)) (or (< 14 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:30,454 INFO L273 TraceCheckUtils]: 13: Hoare triple {3078#(and (or (<= main_n 14) (<= main_i 24)) (or (< 14 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3079#(and (or (<= 28 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:30,455 INFO L273 TraceCheckUtils]: 14: Hoare triple {3079#(and (or (<= 28 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3079#(and (or (<= 28 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:30,456 INFO L273 TraceCheckUtils]: 15: Hoare triple {3079#(and (or (<= 28 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3080#(and (or (<= 32 main_i) (< 14 main_n)) (or (<= main_i 32) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:30,457 INFO L273 TraceCheckUtils]: 16: Hoare triple {3080#(and (or (<= 32 main_i) (< 14 main_n)) (or (<= main_i 32) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3080#(and (or (<= 32 main_i) (< 14 main_n)) (or (<= main_i 32) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:30,458 INFO L273 TraceCheckUtils]: 17: Hoare triple {3080#(and (or (<= 32 main_i) (< 14 main_n)) (or (<= main_i 32) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3081#(and (or (<= main_i 36) (<= main_n 14)) (or (< 14 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:30,459 INFO L273 TraceCheckUtils]: 18: Hoare triple {3081#(and (or (<= main_i 36) (<= main_n 14)) (or (< 14 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3081#(and (or (<= main_i 36) (<= main_n 14)) (or (< 14 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:30,460 INFO L273 TraceCheckUtils]: 19: Hoare triple {3081#(and (or (<= main_i 36) (<= main_n 14)) (or (< 14 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3082#(and (or (<= 40 main_i) (< 14 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 40) (<= main_n 14)))} is VALID [2019-02-27 12:55:30,461 INFO L273 TraceCheckUtils]: 20: Hoare triple {3082#(and (or (<= 40 main_i) (< 14 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 40) (<= main_n 14)))} assume i <= n * 4; {3082#(and (or (<= 40 main_i) (< 14 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 40) (<= main_n 14)))} is VALID [2019-02-27 12:55:30,462 INFO L273 TraceCheckUtils]: 21: Hoare triple {3082#(and (or (<= 40 main_i) (< 14 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 40) (<= main_n 14)))} assume a[i] != 23;i := i + 4; {3083#(and (or (<= 44 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:30,463 INFO L273 TraceCheckUtils]: 22: Hoare triple {3083#(and (or (<= 44 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3083#(and (or (<= 44 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:30,464 INFO L273 TraceCheckUtils]: 23: Hoare triple {3083#(and (or (<= 44 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3084#(and (or (<= 48 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:30,464 INFO L273 TraceCheckUtils]: 24: Hoare triple {3084#(and (or (<= 48 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3084#(and (or (<= 48 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:30,465 INFO L273 TraceCheckUtils]: 25: Hoare triple {3084#(and (or (<= 48 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3085#(and (or (<= main_i 52) (<= main_n 14)) (or (< 14 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:30,466 INFO L273 TraceCheckUtils]: 26: Hoare triple {3085#(and (or (<= main_i 52) (<= main_n 14)) (or (< 14 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3085#(and (or (<= main_i 52) (<= main_n 14)) (or (< 14 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:30,467 INFO L273 TraceCheckUtils]: 27: Hoare triple {3085#(and (or (<= main_i 52) (<= main_n 14)) (or (< 14 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3086#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 14) (<= main_i 56)) (or (<= (* 4 main_n) main_i) (< 14 main_n)))))} is VALID [2019-02-27 12:55:30,468 INFO L273 TraceCheckUtils]: 28: Hoare triple {3086#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 14) (<= main_i 56)) (or (<= (* 4 main_n) main_i) (< 14 main_n)))))} assume i <= n * 4; {3087#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 14 main_n) (<= main_i 56))))} is VALID [2019-02-27 12:55:30,474 INFO L273 TraceCheckUtils]: 29: Hoare triple {3087#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 14 main_n) (<= main_i 56))))} assume a[i] != 23;i := i + 4; {3088#(and (<= main_i 60) (<= 15 main_n))} is VALID [2019-02-27 12:55:30,475 INFO L273 TraceCheckUtils]: 30: Hoare triple {3088#(and (<= main_i 60) (<= 15 main_n))} assume !(i <= n * 4); {3071#false} is VALID [2019-02-27 12:55:30,482 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:30,482 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:55:30,482 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:55:30,482 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:55:30,482 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:55:30,482 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:55:30,483 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:55:30,506 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-27 12:55:30,507 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-27 12:55:30,547 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2019-02-27 12:55:30,547 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 12:55:30,548 WARN L254 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 35 conjunts are in the unsatisfiable core [2019-02-27 12:55:30,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:30,559 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:55:30,575 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:55:30,579 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:55:30,587 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:55:30,587 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:55:30,589 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:55:30,589 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_18]. (and (= main_i 0) (= (store v_main_a_18 (* 4 main_n) 23) main_a)) [2019-02-27 12:55:30,589 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:55:31,162 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:55:31,168 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:55:31,176 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:55:31,176 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:55:31,178 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:55:31,178 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 56 .cse0) (not (= (select main_a 56) 23)) (<= main_i 60) (= 23 (select main_a .cse0)))) [2019-02-27 12:55:31,178 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 56 .cse0) (<= main_i 60) (not (= 56 .cse0)))) [2019-02-27 12:55:31,201 INFO L273 TraceCheckUtils]: 0: Hoare triple {3070#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {3092#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:31,202 INFO L273 TraceCheckUtils]: 1: Hoare triple {3092#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3096#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:55:31,202 INFO L273 TraceCheckUtils]: 2: Hoare triple {3096#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {3096#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:55:31,203 INFO L273 TraceCheckUtils]: 3: Hoare triple {3096#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {3103#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:31,203 INFO L273 TraceCheckUtils]: 4: Hoare triple {3103#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3103#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:31,204 INFO L273 TraceCheckUtils]: 5: Hoare triple {3103#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3110#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:55:31,204 INFO L273 TraceCheckUtils]: 6: Hoare triple {3110#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {3110#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:55:31,205 INFO L273 TraceCheckUtils]: 7: Hoare triple {3110#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {3117#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:31,206 INFO L273 TraceCheckUtils]: 8: Hoare triple {3117#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3117#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:31,207 INFO L273 TraceCheckUtils]: 9: Hoare triple {3117#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3124#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:31,207 INFO L273 TraceCheckUtils]: 10: Hoare triple {3124#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3124#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:31,208 INFO L273 TraceCheckUtils]: 11: Hoare triple {3124#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3131#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:31,209 INFO L273 TraceCheckUtils]: 12: Hoare triple {3131#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3131#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:31,210 INFO L273 TraceCheckUtils]: 13: Hoare triple {3131#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3138#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:31,210 INFO L273 TraceCheckUtils]: 14: Hoare triple {3138#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3138#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:31,211 INFO L273 TraceCheckUtils]: 15: Hoare triple {3138#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3145#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:31,212 INFO L273 TraceCheckUtils]: 16: Hoare triple {3145#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3145#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:31,213 INFO L273 TraceCheckUtils]: 17: Hoare triple {3145#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3152#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:31,213 INFO L273 TraceCheckUtils]: 18: Hoare triple {3152#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3152#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:31,214 INFO L273 TraceCheckUtils]: 19: Hoare triple {3152#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3159#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:31,215 INFO L273 TraceCheckUtils]: 20: Hoare triple {3159#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3159#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:31,216 INFO L273 TraceCheckUtils]: 21: Hoare triple {3159#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3166#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:31,216 INFO L273 TraceCheckUtils]: 22: Hoare triple {3166#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3166#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:31,217 INFO L273 TraceCheckUtils]: 23: Hoare triple {3166#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3173#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:31,218 INFO L273 TraceCheckUtils]: 24: Hoare triple {3173#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3173#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:31,219 INFO L273 TraceCheckUtils]: 25: Hoare triple {3173#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3180#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:31,219 INFO L273 TraceCheckUtils]: 26: Hoare triple {3180#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3180#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:31,220 INFO L273 TraceCheckUtils]: 27: Hoare triple {3180#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3187#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:31,221 INFO L273 TraceCheckUtils]: 28: Hoare triple {3187#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3191#(and (= main_i 56) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:31,222 INFO L273 TraceCheckUtils]: 29: Hoare triple {3191#(and (= main_i 56) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3088#(and (<= main_i 60) (<= 15 main_n))} is VALID [2019-02-27 12:55:31,223 INFO L273 TraceCheckUtils]: 30: Hoare triple {3088#(and (<= main_i 60) (<= 15 main_n))} assume !(i <= n * 4); {3071#false} is VALID [2019-02-27 12:55:31,226 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:31,227 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:55:32,826 INFO L273 TraceCheckUtils]: 30: Hoare triple {3198#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {3071#false} is VALID [2019-02-27 12:55:32,827 INFO L273 TraceCheckUtils]: 29: Hoare triple {3202#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {3198#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:55:32,828 INFO L273 TraceCheckUtils]: 28: Hoare triple {3206#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {3202#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:55:32,829 INFO L273 TraceCheckUtils]: 27: Hoare triple {3210#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {3206#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:55:32,830 INFO L273 TraceCheckUtils]: 26: Hoare triple {3210#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {3210#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:55:32,831 INFO L273 TraceCheckUtils]: 25: Hoare triple {3217#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {3210#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:55:32,831 INFO L273 TraceCheckUtils]: 24: Hoare triple {3217#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {3217#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:55:32,832 INFO L273 TraceCheckUtils]: 23: Hoare triple {3224#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {3217#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:55:32,833 INFO L273 TraceCheckUtils]: 22: Hoare triple {3224#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {3224#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:55:32,834 INFO L273 TraceCheckUtils]: 21: Hoare triple {3231#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {3224#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:55:32,835 INFO L273 TraceCheckUtils]: 20: Hoare triple {3231#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {3231#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:55:32,836 INFO L273 TraceCheckUtils]: 19: Hoare triple {3238#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3231#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:55:32,836 INFO L273 TraceCheckUtils]: 18: Hoare triple {3238#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {3238#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:55:32,838 INFO L273 TraceCheckUtils]: 17: Hoare triple {3245#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {3238#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:55:32,838 INFO L273 TraceCheckUtils]: 16: Hoare triple {3245#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {3245#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:55:32,839 INFO L273 TraceCheckUtils]: 15: Hoare triple {3252#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3245#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:55:32,840 INFO L273 TraceCheckUtils]: 14: Hoare triple {3252#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {3252#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:55:32,841 INFO L273 TraceCheckUtils]: 13: Hoare triple {3259#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3252#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:55:32,842 INFO L273 TraceCheckUtils]: 12: Hoare triple {3259#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {3259#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:55:32,843 INFO L273 TraceCheckUtils]: 11: Hoare triple {3266#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3259#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:55:32,843 INFO L273 TraceCheckUtils]: 10: Hoare triple {3266#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {3266#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:55:32,847 INFO L273 TraceCheckUtils]: 9: Hoare triple {3273#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {3266#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:55:32,847 INFO L273 TraceCheckUtils]: 8: Hoare triple {3273#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {3273#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:55:32,848 INFO L273 TraceCheckUtils]: 7: Hoare triple {3280#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3273#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:55:32,848 INFO L273 TraceCheckUtils]: 6: Hoare triple {3280#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {3280#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:55:32,849 INFO L273 TraceCheckUtils]: 5: Hoare triple {3287#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3280#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:55:32,850 INFO L273 TraceCheckUtils]: 4: Hoare triple {3287#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {3287#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:55:32,851 INFO L273 TraceCheckUtils]: 3: Hoare triple {3294#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {3287#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:55:32,851 INFO L273 TraceCheckUtils]: 2: Hoare triple {3294#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {3294#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:55:32,852 INFO L273 TraceCheckUtils]: 1: Hoare triple {3301#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3294#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:55:32,853 INFO L273 TraceCheckUtils]: 0: Hoare triple {3070#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {3301#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:55:32,858 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:32,877 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:55:32,877 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 50 [2019-02-27 12:55:32,877 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:55:32,877 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 31 [2019-02-27 12:55:32,877 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:55:32,878 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 35 states. [2019-02-27 12:55:32,950 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 61 edges. 61 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:55:32,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2019-02-27 12:55:32,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2019-02-27 12:55:32,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=382, Invalid=2270, Unknown=0, NotChecked=0, Total=2652 [2019-02-27 12:55:32,952 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 35 states. [2019-02-27 12:55:34,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:34,669 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2019-02-27 12:55:34,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-02-27 12:55:34,670 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 31 [2019-02-27 12:55:34,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:55:34,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-02-27 12:55:34,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 36 transitions. [2019-02-27 12:55:34,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-02-27 12:55:34,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 36 transitions. [2019-02-27 12:55:34,672 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 19 states and 36 transitions. [2019-02-27 12:55:34,711 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:55:34,712 INFO L225 Difference]: With dead ends: 36 [2019-02-27 12:55:34,712 INFO L226 Difference]: Without dead ends: 35 [2019-02-27 12:55:34,713 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=382, Invalid=2270, Unknown=0, NotChecked=0, Total=2652 [2019-02-27 12:55:34,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-02-27 12:55:34,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2019-02-27 12:55:34,749 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:55:34,749 INFO L82 GeneralOperation]: Start isEquivalent. First operand 35 states. Second operand 34 states. [2019-02-27 12:55:34,749 INFO L74 IsIncluded]: Start isIncluded. First operand 35 states. Second operand 34 states. [2019-02-27 12:55:34,750 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 34 states. [2019-02-27 12:55:34,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:34,751 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2019-02-27 12:55:34,751 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2019-02-27 12:55:34,751 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:55:34,752 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:55:34,752 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand 35 states. [2019-02-27 12:55:34,752 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 35 states. [2019-02-27 12:55:34,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:34,753 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2019-02-27 12:55:34,753 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2019-02-27 12:55:34,753 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:55:34,753 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:55:34,753 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:55:34,753 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:55:34,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-02-27 12:55:34,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2019-02-27 12:55:34,754 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 31 [2019-02-27 12:55:34,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:55:34,754 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2019-02-27 12:55:34,754 INFO L481 AbstractCegarLoop]: Interpolant automaton has 35 states. [2019-02-27 12:55:34,755 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2019-02-27 12:55:34,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-02-27 12:55:34,755 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:55:34,755 INFO L402 BasicCegarLoop]: trace histogram [16, 15, 1, 1] [2019-02-27 12:55:34,755 INFO L423 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:55:34,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:55:34,756 INFO L82 PathProgramCache]: Analyzing trace with hash 371871806, now seen corresponding path program 15 times [2019-02-27 12:55:34,756 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:55:34,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:55:34,756 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 12:55:34,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:55:34,757 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:55:34,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:35,745 INFO L273 TraceCheckUtils]: 0: Hoare triple {3477#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {3479#(and (or (<= main_n 15) (<= main_i 0)) (or (<= 0 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:35,747 INFO L273 TraceCheckUtils]: 1: Hoare triple {3479#(and (or (<= main_n 15) (<= main_i 0)) (or (<= 0 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3480#(and (or (<= main_n 15) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))) (or (< 15 main_n) (<= 4 main_i)))} is VALID [2019-02-27 12:55:35,748 INFO L273 TraceCheckUtils]: 2: Hoare triple {3480#(and (or (<= main_n 15) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))) (or (< 15 main_n) (<= 4 main_i)))} assume i <= n * 4; {3480#(and (or (<= main_n 15) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))) (or (< 15 main_n) (<= 4 main_i)))} is VALID [2019-02-27 12:55:35,749 INFO L273 TraceCheckUtils]: 3: Hoare triple {3480#(and (or (<= main_n 15) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))) (or (< 15 main_n) (<= 4 main_i)))} assume a[i] != 23;i := i + 4; {3481#(and (or (<= 8 main_i) (< 15 main_n)) (or (<= main_i 8) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:35,749 INFO L273 TraceCheckUtils]: 4: Hoare triple {3481#(and (or (<= 8 main_i) (< 15 main_n)) (or (<= main_i 8) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3481#(and (or (<= 8 main_i) (< 15 main_n)) (or (<= main_i 8) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:35,751 INFO L273 TraceCheckUtils]: 5: Hoare triple {3481#(and (or (<= 8 main_i) (< 15 main_n)) (or (<= main_i 8) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3482#(and (or (< 15 main_n) (<= 12 main_i)) (or (<= main_n 15) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:35,751 INFO L273 TraceCheckUtils]: 6: Hoare triple {3482#(and (or (< 15 main_n) (<= 12 main_i)) (or (<= main_n 15) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3482#(and (or (< 15 main_n) (<= 12 main_i)) (or (<= main_n 15) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:35,752 INFO L273 TraceCheckUtils]: 7: Hoare triple {3482#(and (or (< 15 main_n) (<= 12 main_i)) (or (<= main_n 15) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3483#(and (or (<= main_n 15) (<= main_i 16)) (or (< 15 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:35,753 INFO L273 TraceCheckUtils]: 8: Hoare triple {3483#(and (or (<= main_n 15) (<= main_i 16)) (or (< 15 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3483#(and (or (<= main_n 15) (<= main_i 16)) (or (< 15 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:35,754 INFO L273 TraceCheckUtils]: 9: Hoare triple {3483#(and (or (<= main_n 15) (<= main_i 16)) (or (< 15 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3484#(and (or (< 15 main_n) (<= 20 main_i)) (or (<= main_n 15) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:35,755 INFO L273 TraceCheckUtils]: 10: Hoare triple {3484#(and (or (< 15 main_n) (<= 20 main_i)) (or (<= main_n 15) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3484#(and (or (< 15 main_n) (<= 20 main_i)) (or (<= main_n 15) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:35,756 INFO L273 TraceCheckUtils]: 11: Hoare triple {3484#(and (or (< 15 main_n) (<= 20 main_i)) (or (<= main_n 15) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3485#(and (or (<= main_n 15) (<= main_i 24)) (or (<= 24 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:35,757 INFO L273 TraceCheckUtils]: 12: Hoare triple {3485#(and (or (<= main_n 15) (<= main_i 24)) (or (<= 24 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3485#(and (or (<= main_n 15) (<= main_i 24)) (or (<= 24 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:35,758 INFO L273 TraceCheckUtils]: 13: Hoare triple {3485#(and (or (<= main_n 15) (<= main_i 24)) (or (<= 24 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3486#(and (or (<= main_n 15) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))) (or (<= 28 main_i) (< 15 main_n)))} is VALID [2019-02-27 12:55:35,759 INFO L273 TraceCheckUtils]: 14: Hoare triple {3486#(and (or (<= main_n 15) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))) (or (<= 28 main_i) (< 15 main_n)))} assume i <= n * 4; {3486#(and (or (<= main_n 15) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))) (or (<= 28 main_i) (< 15 main_n)))} is VALID [2019-02-27 12:55:35,760 INFO L273 TraceCheckUtils]: 15: Hoare triple {3486#(and (or (<= main_n 15) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))) (or (<= 28 main_i) (< 15 main_n)))} assume a[i] != 23;i := i + 4; {3487#(and (or (<= 32 main_i) (< 15 main_n)) (or (<= main_i 32) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:35,761 INFO L273 TraceCheckUtils]: 16: Hoare triple {3487#(and (or (<= 32 main_i) (< 15 main_n)) (or (<= main_i 32) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3487#(and (or (<= 32 main_i) (< 15 main_n)) (or (<= main_i 32) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:35,762 INFO L273 TraceCheckUtils]: 17: Hoare triple {3487#(and (or (<= 32 main_i) (< 15 main_n)) (or (<= main_i 32) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3488#(and (or (<= main_i 36) (<= main_n 15)) (or (< 15 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:35,763 INFO L273 TraceCheckUtils]: 18: Hoare triple {3488#(and (or (<= main_i 36) (<= main_n 15)) (or (< 15 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3488#(and (or (<= main_i 36) (<= main_n 15)) (or (< 15 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:35,781 INFO L273 TraceCheckUtils]: 19: Hoare triple {3488#(and (or (<= main_i 36) (<= main_n 15)) (or (< 15 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3489#(and (or (<= main_i 40) (<= main_n 15)) (or (<= 40 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:35,796 INFO L273 TraceCheckUtils]: 20: Hoare triple {3489#(and (or (<= main_i 40) (<= main_n 15)) (or (<= 40 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3489#(and (or (<= main_i 40) (<= main_n 15)) (or (<= 40 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:35,810 INFO L273 TraceCheckUtils]: 21: Hoare triple {3489#(and (or (<= main_i 40) (<= main_n 15)) (or (<= 40 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3490#(and (or (<= main_n 15) (<= main_i 44)) (or (<= 44 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:35,819 INFO L273 TraceCheckUtils]: 22: Hoare triple {3490#(and (or (<= main_n 15) (<= main_i 44)) (or (<= 44 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3490#(and (or (<= main_n 15) (<= main_i 44)) (or (<= 44 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:35,832 INFO L273 TraceCheckUtils]: 23: Hoare triple {3490#(and (or (<= main_n 15) (<= main_i 44)) (or (<= 44 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3491#(and (or (<= main_n 15) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 15 main_n)))} is VALID [2019-02-27 12:55:35,832 INFO L273 TraceCheckUtils]: 24: Hoare triple {3491#(and (or (<= main_n 15) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 15 main_n)))} assume i <= n * 4; {3491#(and (or (<= main_n 15) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 15 main_n)))} is VALID [2019-02-27 12:55:35,833 INFO L273 TraceCheckUtils]: 25: Hoare triple {3491#(and (or (<= main_n 15) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 15 main_n)))} assume a[i] != 23;i := i + 4; {3492#(and (or (<= main_i 52) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))) (or (< 15 main_n) (<= 52 main_i)))} is VALID [2019-02-27 12:55:35,834 INFO L273 TraceCheckUtils]: 26: Hoare triple {3492#(and (or (<= main_i 52) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))) (or (< 15 main_n) (<= 52 main_i)))} assume i <= n * 4; {3492#(and (or (<= main_i 52) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))) (or (< 15 main_n) (<= 52 main_i)))} is VALID [2019-02-27 12:55:35,834 INFO L273 TraceCheckUtils]: 27: Hoare triple {3492#(and (or (<= main_i 52) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))) (or (< 15 main_n) (<= 52 main_i)))} assume a[i] != 23;i := i + 4; {3493#(and (or (< 15 main_n) (<= 56 main_i)) (or (<= main_n 15) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:35,835 INFO L273 TraceCheckUtils]: 28: Hoare triple {3493#(and (or (< 15 main_n) (<= 56 main_i)) (or (<= main_n 15) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3493#(and (or (< 15 main_n) (<= 56 main_i)) (or (<= main_n 15) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:35,836 INFO L273 TraceCheckUtils]: 29: Hoare triple {3493#(and (or (< 15 main_n) (<= 56 main_i)) (or (<= main_n 15) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3494#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 15) (<= main_i 60)) (or (<= (* 4 main_n) main_i) (< 15 main_n)))))} is VALID [2019-02-27 12:55:35,836 INFO L273 TraceCheckUtils]: 30: Hoare triple {3494#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 15) (<= main_i 60)) (or (<= (* 4 main_n) main_i) (< 15 main_n)))))} assume i <= n * 4; {3495#(and (or (= (* 4 main_n) main_i) (and (<= main_i 60) (< 15 main_n))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-02-27 12:55:35,854 INFO L273 TraceCheckUtils]: 31: Hoare triple {3495#(and (or (= (* 4 main_n) main_i) (and (<= main_i 60) (< 15 main_n))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume a[i] != 23;i := i + 4; {3496#(and (<= main_i 64) (< 15 main_n))} is VALID [2019-02-27 12:55:35,863 INFO L273 TraceCheckUtils]: 32: Hoare triple {3496#(and (<= main_i 64) (< 15 main_n))} assume !(i <= n * 4); {3478#false} is VALID [2019-02-27 12:55:35,869 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:35,869 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:55:35,869 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:55:35,870 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:55:35,870 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:55:35,870 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:55:35,870 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:55:35,878 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-27 12:55:35,878 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-27 12:55:35,891 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-27 12:55:35,891 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 12:55:35,892 WARN L254 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 37 conjunts are in the unsatisfiable core [2019-02-27 12:55:35,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:35,904 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:55:35,916 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:55:35,918 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:55:35,929 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:55:35,929 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:55:35,931 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:55:35,931 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_19]. (and (= (store v_main_a_19 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-27 12:55:35,931 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:55:36,543 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:55:36,545 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:55:36,551 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:55:36,551 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:55:36,554 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:55:36,554 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= 23 (select main_a 60))) (<= main_i 64) (<= 60 .cse0) (= 23 (select main_a .cse0)))) [2019-02-27 12:55:36,554 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 60 .cse0)) (<= main_i 64) (<= 60 .cse0))) [2019-02-27 12:55:36,578 INFO L273 TraceCheckUtils]: 0: Hoare triple {3477#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {3500#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:36,579 INFO L273 TraceCheckUtils]: 1: Hoare triple {3500#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3504#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:55:36,580 INFO L273 TraceCheckUtils]: 2: Hoare triple {3504#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {3504#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:55:36,580 INFO L273 TraceCheckUtils]: 3: Hoare triple {3504#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {3511#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:36,580 INFO L273 TraceCheckUtils]: 4: Hoare triple {3511#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3511#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:36,581 INFO L273 TraceCheckUtils]: 5: Hoare triple {3511#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3518#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:55:36,582 INFO L273 TraceCheckUtils]: 6: Hoare triple {3518#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {3518#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:55:36,583 INFO L273 TraceCheckUtils]: 7: Hoare triple {3518#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {3525#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:36,583 INFO L273 TraceCheckUtils]: 8: Hoare triple {3525#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3525#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:36,584 INFO L273 TraceCheckUtils]: 9: Hoare triple {3525#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3532#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:36,585 INFO L273 TraceCheckUtils]: 10: Hoare triple {3532#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3532#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:36,585 INFO L273 TraceCheckUtils]: 11: Hoare triple {3532#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3539#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:36,586 INFO L273 TraceCheckUtils]: 12: Hoare triple {3539#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3539#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:36,587 INFO L273 TraceCheckUtils]: 13: Hoare triple {3539#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3546#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:36,587 INFO L273 TraceCheckUtils]: 14: Hoare triple {3546#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3546#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:36,588 INFO L273 TraceCheckUtils]: 15: Hoare triple {3546#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3553#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:36,589 INFO L273 TraceCheckUtils]: 16: Hoare triple {3553#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3553#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:36,590 INFO L273 TraceCheckUtils]: 17: Hoare triple {3553#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3560#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:36,590 INFO L273 TraceCheckUtils]: 18: Hoare triple {3560#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3560#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:36,591 INFO L273 TraceCheckUtils]: 19: Hoare triple {3560#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3567#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:36,592 INFO L273 TraceCheckUtils]: 20: Hoare triple {3567#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3567#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:36,592 INFO L273 TraceCheckUtils]: 21: Hoare triple {3567#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3574#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:36,593 INFO L273 TraceCheckUtils]: 22: Hoare triple {3574#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3574#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:36,594 INFO L273 TraceCheckUtils]: 23: Hoare triple {3574#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3581#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:36,594 INFO L273 TraceCheckUtils]: 24: Hoare triple {3581#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3581#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:36,595 INFO L273 TraceCheckUtils]: 25: Hoare triple {3581#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3588#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:36,596 INFO L273 TraceCheckUtils]: 26: Hoare triple {3588#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3588#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:36,596 INFO L273 TraceCheckUtils]: 27: Hoare triple {3588#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3595#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:36,597 INFO L273 TraceCheckUtils]: 28: Hoare triple {3595#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3595#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:36,598 INFO L273 TraceCheckUtils]: 29: Hoare triple {3595#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3602#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:36,599 INFO L273 TraceCheckUtils]: 30: Hoare triple {3602#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3606#(and (= main_i 60) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:36,600 INFO L273 TraceCheckUtils]: 31: Hoare triple {3606#(and (= main_i 60) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3496#(and (<= main_i 64) (< 15 main_n))} is VALID [2019-02-27 12:55:36,600 INFO L273 TraceCheckUtils]: 32: Hoare triple {3496#(and (<= main_i 64) (< 15 main_n))} assume !(i <= n * 4); {3478#false} is VALID [2019-02-27 12:55:36,604 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:36,604 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:55:37,554 WARN L181 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2019-02-27 12:55:38,723 INFO L273 TraceCheckUtils]: 32: Hoare triple {3613#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {3478#false} is VALID [2019-02-27 12:55:38,724 INFO L273 TraceCheckUtils]: 31: Hoare triple {3617#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {3613#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:55:38,725 INFO L273 TraceCheckUtils]: 30: Hoare triple {3621#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {3617#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:55:38,726 INFO L273 TraceCheckUtils]: 29: Hoare triple {3625#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {3621#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:55:38,727 INFO L273 TraceCheckUtils]: 28: Hoare triple {3625#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {3625#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:55:38,728 INFO L273 TraceCheckUtils]: 27: Hoare triple {3632#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {3625#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:55:38,728 INFO L273 TraceCheckUtils]: 26: Hoare triple {3632#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {3632#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:55:38,730 INFO L273 TraceCheckUtils]: 25: Hoare triple {3639#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {3632#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:55:38,730 INFO L273 TraceCheckUtils]: 24: Hoare triple {3639#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {3639#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:55:38,731 INFO L273 TraceCheckUtils]: 23: Hoare triple {3646#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {3639#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:55:38,732 INFO L273 TraceCheckUtils]: 22: Hoare triple {3646#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {3646#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:55:38,733 INFO L273 TraceCheckUtils]: 21: Hoare triple {3653#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3646#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:55:38,733 INFO L273 TraceCheckUtils]: 20: Hoare triple {3653#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {3653#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:55:38,734 INFO L273 TraceCheckUtils]: 19: Hoare triple {3660#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {3653#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:55:38,735 INFO L273 TraceCheckUtils]: 18: Hoare triple {3660#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {3660#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:55:38,736 INFO L273 TraceCheckUtils]: 17: Hoare triple {3667#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3660#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:55:38,736 INFO L273 TraceCheckUtils]: 16: Hoare triple {3667#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {3667#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:55:38,738 INFO L273 TraceCheckUtils]: 15: Hoare triple {3674#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3667#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:55:38,738 INFO L273 TraceCheckUtils]: 14: Hoare triple {3674#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {3674#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:55:38,739 INFO L273 TraceCheckUtils]: 13: Hoare triple {3681#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3674#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:55:38,740 INFO L273 TraceCheckUtils]: 12: Hoare triple {3681#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {3681#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:55:38,741 INFO L273 TraceCheckUtils]: 11: Hoare triple {3688#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {3681#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:55:38,741 INFO L273 TraceCheckUtils]: 10: Hoare triple {3688#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {3688#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:55:38,742 INFO L273 TraceCheckUtils]: 9: Hoare triple {3695#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3688#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:55:38,743 INFO L273 TraceCheckUtils]: 8: Hoare triple {3695#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {3695#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:55:38,744 INFO L273 TraceCheckUtils]: 7: Hoare triple {3702#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3695#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:55:38,744 INFO L273 TraceCheckUtils]: 6: Hoare triple {3702#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {3702#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:55:38,746 INFO L273 TraceCheckUtils]: 5: Hoare triple {3709#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {3702#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:55:38,746 INFO L273 TraceCheckUtils]: 4: Hoare triple {3709#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {3709#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:55:38,749 INFO L273 TraceCheckUtils]: 3: Hoare triple {3716#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3709#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:55:38,749 INFO L273 TraceCheckUtils]: 2: Hoare triple {3716#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {3716#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:55:38,750 INFO L273 TraceCheckUtils]: 1: Hoare triple {3723#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {3716#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:55:38,751 INFO L273 TraceCheckUtils]: 0: Hoare triple {3477#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {3723#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:55:38,757 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:38,778 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:55:38,778 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 53 [2019-02-27 12:55:38,778 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:55:38,779 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 33 [2019-02-27 12:55:38,779 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:55:38,779 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 37 states. [2019-02-27 12:55:38,854 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 65 edges. 65 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:55:38,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 37 states [2019-02-27 12:55:38,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2019-02-27 12:55:38,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=422, Invalid=2548, Unknown=0, NotChecked=0, Total=2970 [2019-02-27 12:55:38,856 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 37 states. [2019-02-27 12:55:40,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:40,861 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2019-02-27 12:55:40,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-02-27 12:55:40,861 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 33 [2019-02-27 12:55:40,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:55:40,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-02-27 12:55:40,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 38 transitions. [2019-02-27 12:55:40,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-02-27 12:55:40,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 38 transitions. [2019-02-27 12:55:40,863 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 20 states and 38 transitions. [2019-02-27 12:55:40,905 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:55:40,906 INFO L225 Difference]: With dead ends: 38 [2019-02-27 12:55:40,907 INFO L226 Difference]: Without dead ends: 37 [2019-02-27 12:55:40,908 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 680 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=422, Invalid=2548, Unknown=0, NotChecked=0, Total=2970 [2019-02-27 12:55:40,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-02-27 12:55:40,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2019-02-27 12:55:40,945 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:55:40,946 INFO L82 GeneralOperation]: Start isEquivalent. First operand 37 states. Second operand 36 states. [2019-02-27 12:55:40,946 INFO L74 IsIncluded]: Start isIncluded. First operand 37 states. Second operand 36 states. [2019-02-27 12:55:40,946 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 36 states. [2019-02-27 12:55:40,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:40,947 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2019-02-27 12:55:40,947 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2019-02-27 12:55:40,948 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:55:40,948 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:55:40,948 INFO L74 IsIncluded]: Start isIncluded. First operand 36 states. Second operand 37 states. [2019-02-27 12:55:40,948 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 37 states. [2019-02-27 12:55:40,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:40,949 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2019-02-27 12:55:40,949 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2019-02-27 12:55:40,949 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:55:40,949 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:55:40,950 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:55:40,950 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:55:40,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-02-27 12:55:40,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2019-02-27 12:55:40,950 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 33 [2019-02-27 12:55:40,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:55:40,951 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2019-02-27 12:55:40,951 INFO L481 AbstractCegarLoop]: Interpolant automaton has 37 states. [2019-02-27 12:55:40,951 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2019-02-27 12:55:40,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-02-27 12:55:40,951 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:55:40,952 INFO L402 BasicCegarLoop]: trace histogram [17, 16, 1, 1] [2019-02-27 12:55:40,952 INFO L423 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:55:40,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:55:40,952 INFO L82 PathProgramCache]: Analyzing trace with hash 886521088, now seen corresponding path program 16 times [2019-02-27 12:55:40,952 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:55:40,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:55:40,953 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 12:55:40,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:55:40,953 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:55:40,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:41,358 WARN L181 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-02-27 12:55:42,505 INFO L273 TraceCheckUtils]: 0: Hoare triple {3909#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {3911#(and (or (<= main_i 0) (<= main_n 16)) (or (< 16 main_n) (<= 0 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:42,506 INFO L273 TraceCheckUtils]: 1: Hoare triple {3911#(and (or (<= main_i 0) (<= main_n 16)) (or (< 16 main_n) (<= 0 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3912#(and (or (< 16 main_n) (<= 4 main_i)) (or (<= main_n 16) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:42,507 INFO L273 TraceCheckUtils]: 2: Hoare triple {3912#(and (or (< 16 main_n) (<= 4 main_i)) (or (<= main_n 16) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3912#(and (or (< 16 main_n) (<= 4 main_i)) (or (<= main_n 16) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:42,507 INFO L273 TraceCheckUtils]: 3: Hoare triple {3912#(and (or (< 16 main_n) (<= 4 main_i)) (or (<= main_n 16) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3913#(and (or (< 16 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:42,509 INFO L273 TraceCheckUtils]: 4: Hoare triple {3913#(and (or (< 16 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3913#(and (or (< 16 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:42,510 INFO L273 TraceCheckUtils]: 5: Hoare triple {3913#(and (or (< 16 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3914#(and (or (< 16 main_n) (<= 12 main_i)) (or (<= main_n 16) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:42,511 INFO L273 TraceCheckUtils]: 6: Hoare triple {3914#(and (or (< 16 main_n) (<= 12 main_i)) (or (<= main_n 16) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3914#(and (or (< 16 main_n) (<= 12 main_i)) (or (<= main_n 16) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:42,512 INFO L273 TraceCheckUtils]: 7: Hoare triple {3914#(and (or (< 16 main_n) (<= 12 main_i)) (or (<= main_n 16) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3915#(and (or (< 16 main_n) (<= 16 main_i)) (or (<= main_n 16) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:42,513 INFO L273 TraceCheckUtils]: 8: Hoare triple {3915#(and (or (< 16 main_n) (<= 16 main_i)) (or (<= main_n 16) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3915#(and (or (< 16 main_n) (<= 16 main_i)) (or (<= main_n 16) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:42,514 INFO L273 TraceCheckUtils]: 9: Hoare triple {3915#(and (or (< 16 main_n) (<= 16 main_i)) (or (<= main_n 16) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3916#(and (or (< 16 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:42,515 INFO L273 TraceCheckUtils]: 10: Hoare triple {3916#(and (or (< 16 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3916#(and (or (< 16 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:42,516 INFO L273 TraceCheckUtils]: 11: Hoare triple {3916#(and (or (< 16 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3917#(and (or (<= main_i 24) (<= main_n 16)) (or (< 16 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:42,517 INFO L273 TraceCheckUtils]: 12: Hoare triple {3917#(and (or (<= main_i 24) (<= main_n 16)) (or (< 16 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3917#(and (or (<= main_i 24) (<= main_n 16)) (or (< 16 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:42,518 INFO L273 TraceCheckUtils]: 13: Hoare triple {3917#(and (or (<= main_i 24) (<= main_n 16)) (or (< 16 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3918#(and (or (< 16 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 16) (<= main_i 28)))} is VALID [2019-02-27 12:55:42,519 INFO L273 TraceCheckUtils]: 14: Hoare triple {3918#(and (or (< 16 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 16) (<= main_i 28)))} assume i <= n * 4; {3918#(and (or (< 16 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 16) (<= main_i 28)))} is VALID [2019-02-27 12:55:42,520 INFO L273 TraceCheckUtils]: 15: Hoare triple {3918#(and (or (< 16 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 16) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {3919#(and (or (<= main_i 32) (<= main_n 16)) (or (< 16 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:42,521 INFO L273 TraceCheckUtils]: 16: Hoare triple {3919#(and (or (<= main_i 32) (<= main_n 16)) (or (< 16 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3919#(and (or (<= main_i 32) (<= main_n 16)) (or (< 16 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:42,522 INFO L273 TraceCheckUtils]: 17: Hoare triple {3919#(and (or (<= main_i 32) (<= main_n 16)) (or (< 16 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3920#(and (or (< 16 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 16)))} is VALID [2019-02-27 12:55:42,523 INFO L273 TraceCheckUtils]: 18: Hoare triple {3920#(and (or (< 16 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 16)))} assume i <= n * 4; {3920#(and (or (< 16 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 16)))} is VALID [2019-02-27 12:55:42,524 INFO L273 TraceCheckUtils]: 19: Hoare triple {3920#(and (or (< 16 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 16)))} assume a[i] != 23;i := i + 4; {3921#(and (or (< 16 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:42,524 INFO L273 TraceCheckUtils]: 20: Hoare triple {3921#(and (or (< 16 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3921#(and (or (< 16 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:42,526 INFO L273 TraceCheckUtils]: 21: Hoare triple {3921#(and (or (< 16 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3922#(and (or (< 16 main_n) (<= 44 main_i)) (or (<= main_n 16) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:42,526 INFO L273 TraceCheckUtils]: 22: Hoare triple {3922#(and (or (< 16 main_n) (<= 44 main_i)) (or (<= main_n 16) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3922#(and (or (< 16 main_n) (<= 44 main_i)) (or (<= main_n 16) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:42,528 INFO L273 TraceCheckUtils]: 23: Hoare triple {3922#(and (or (< 16 main_n) (<= 44 main_i)) (or (<= main_n 16) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3923#(and (or (<= main_n 16) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (< 16 main_n) (<= 48 main_i)))} is VALID [2019-02-27 12:55:42,528 INFO L273 TraceCheckUtils]: 24: Hoare triple {3923#(and (or (<= main_n 16) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (< 16 main_n) (<= 48 main_i)))} assume i <= n * 4; {3923#(and (or (<= main_n 16) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (< 16 main_n) (<= 48 main_i)))} is VALID [2019-02-27 12:55:42,530 INFO L273 TraceCheckUtils]: 25: Hoare triple {3923#(and (or (<= main_n 16) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (< 16 main_n) (<= 48 main_i)))} assume a[i] != 23;i := i + 4; {3924#(and (or (< 16 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:42,530 INFO L273 TraceCheckUtils]: 26: Hoare triple {3924#(and (or (< 16 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3924#(and (or (< 16 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:42,532 INFO L273 TraceCheckUtils]: 27: Hoare triple {3924#(and (or (< 16 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3925#(and (or (<= main_n 16) (<= main_i 56)) (or (< 16 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:42,532 INFO L273 TraceCheckUtils]: 28: Hoare triple {3925#(and (or (<= main_n 16) (<= main_i 56)) (or (< 16 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3925#(and (or (<= main_n 16) (<= main_i 56)) (or (< 16 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:42,533 INFO L273 TraceCheckUtils]: 29: Hoare triple {3925#(and (or (<= main_n 16) (<= main_i 56)) (or (< 16 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3926#(and (or (< 16 main_n) (<= 60 main_i)) (or (<= main_i 60) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:42,534 INFO L273 TraceCheckUtils]: 30: Hoare triple {3926#(and (or (< 16 main_n) (<= 60 main_i)) (or (<= main_i 60) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3926#(and (or (< 16 main_n) (<= 60 main_i)) (or (<= main_i 60) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:42,536 INFO L273 TraceCheckUtils]: 31: Hoare triple {3926#(and (or (< 16 main_n) (<= 60 main_i)) (or (<= main_i 60) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3927#(and (or (= (* 4 main_n) main_i) (and (or (<= main_i 64) (<= main_n 16)) (or (< 16 main_n) (<= (* 4 main_n) main_i)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-02-27 12:55:42,537 INFO L273 TraceCheckUtils]: 32: Hoare triple {3927#(and (or (= (* 4 main_n) main_i) (and (or (<= main_i 64) (<= main_n 16)) (or (< 16 main_n) (<= (* 4 main_n) main_i)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume i <= n * 4; {3928#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 16 main_n) (<= main_i 64))))} is VALID [2019-02-27 12:55:42,538 INFO L273 TraceCheckUtils]: 33: Hoare triple {3928#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 16 main_n) (<= main_i 64))))} assume a[i] != 23;i := i + 4; {3929#(and (<= 17 main_n) (<= main_i 68))} is VALID [2019-02-27 12:55:42,539 INFO L273 TraceCheckUtils]: 34: Hoare triple {3929#(and (<= 17 main_n) (<= main_i 68))} assume !(i <= n * 4); {3910#false} is VALID [2019-02-27 12:55:42,545 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:42,546 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:55:42,546 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:55:42,546 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:55:42,546 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:55:42,546 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:55:42,546 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:55:42,555 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 12:55:42,555 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-27 12:55:42,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:42,566 WARN L254 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 39 conjunts are in the unsatisfiable core [2019-02-27 12:55:42,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:42,573 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:55:42,591 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:55:42,593 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:55:42,597 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:55:42,597 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:55:42,599 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:55:42,599 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_20]. (and (= (store v_main_a_20 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-27 12:55:42,599 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:55:43,280 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:55:43,290 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:55:43,295 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:55:43,295 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:55:43,298 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:55:43,298 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 64 .cse0) (not (= (select main_a 64) 23)) (= 23 (select main_a .cse0)) (<= main_i 68))) [2019-02-27 12:55:43,298 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 64 .cse0)) (<= 64 .cse0) (<= main_i 68))) [2019-02-27 12:55:43,323 INFO L273 TraceCheckUtils]: 0: Hoare triple {3909#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {3933#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:43,324 INFO L273 TraceCheckUtils]: 1: Hoare triple {3933#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3937#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:55:43,325 INFO L273 TraceCheckUtils]: 2: Hoare triple {3937#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {3937#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:55:43,325 INFO L273 TraceCheckUtils]: 3: Hoare triple {3937#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {3944#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:43,326 INFO L273 TraceCheckUtils]: 4: Hoare triple {3944#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3944#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:43,327 INFO L273 TraceCheckUtils]: 5: Hoare triple {3944#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3951#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:55:43,327 INFO L273 TraceCheckUtils]: 6: Hoare triple {3951#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {3951#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:55:43,328 INFO L273 TraceCheckUtils]: 7: Hoare triple {3951#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {3958#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:43,329 INFO L273 TraceCheckUtils]: 8: Hoare triple {3958#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3958#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:43,330 INFO L273 TraceCheckUtils]: 9: Hoare triple {3958#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3965#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:43,330 INFO L273 TraceCheckUtils]: 10: Hoare triple {3965#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3965#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:43,331 INFO L273 TraceCheckUtils]: 11: Hoare triple {3965#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3972#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:43,332 INFO L273 TraceCheckUtils]: 12: Hoare triple {3972#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3972#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:43,332 INFO L273 TraceCheckUtils]: 13: Hoare triple {3972#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3979#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:43,333 INFO L273 TraceCheckUtils]: 14: Hoare triple {3979#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3979#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:43,334 INFO L273 TraceCheckUtils]: 15: Hoare triple {3979#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3986#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:43,335 INFO L273 TraceCheckUtils]: 16: Hoare triple {3986#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3986#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:43,335 INFO L273 TraceCheckUtils]: 17: Hoare triple {3986#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3993#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:43,336 INFO L273 TraceCheckUtils]: 18: Hoare triple {3993#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3993#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:43,337 INFO L273 TraceCheckUtils]: 19: Hoare triple {3993#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4000#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:43,338 INFO L273 TraceCheckUtils]: 20: Hoare triple {4000#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4000#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:43,338 INFO L273 TraceCheckUtils]: 21: Hoare triple {4000#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4007#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:43,339 INFO L273 TraceCheckUtils]: 22: Hoare triple {4007#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4007#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:43,340 INFO L273 TraceCheckUtils]: 23: Hoare triple {4007#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4014#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:43,340 INFO L273 TraceCheckUtils]: 24: Hoare triple {4014#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4014#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:43,341 INFO L273 TraceCheckUtils]: 25: Hoare triple {4014#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4021#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:43,342 INFO L273 TraceCheckUtils]: 26: Hoare triple {4021#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4021#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:43,343 INFO L273 TraceCheckUtils]: 27: Hoare triple {4021#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4028#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:43,343 INFO L273 TraceCheckUtils]: 28: Hoare triple {4028#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4028#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:43,344 INFO L273 TraceCheckUtils]: 29: Hoare triple {4028#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4035#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:43,345 INFO L273 TraceCheckUtils]: 30: Hoare triple {4035#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4035#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:43,346 INFO L273 TraceCheckUtils]: 31: Hoare triple {4035#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4042#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:43,346 INFO L273 TraceCheckUtils]: 32: Hoare triple {4042#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4046#(and (= main_i 64) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:43,347 INFO L273 TraceCheckUtils]: 33: Hoare triple {4046#(and (= main_i 64) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3929#(and (<= 17 main_n) (<= main_i 68))} is VALID [2019-02-27 12:55:43,348 INFO L273 TraceCheckUtils]: 34: Hoare triple {3929#(and (<= 17 main_n) (<= main_i 68))} assume !(i <= n * 4); {3910#false} is VALID [2019-02-27 12:55:43,352 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:43,352 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:55:44,502 INFO L273 TraceCheckUtils]: 34: Hoare triple {4053#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {3910#false} is VALID [2019-02-27 12:55:44,503 INFO L273 TraceCheckUtils]: 33: Hoare triple {4057#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {4053#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:55:44,504 INFO L273 TraceCheckUtils]: 32: Hoare triple {4061#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {4057#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:55:44,505 INFO L273 TraceCheckUtils]: 31: Hoare triple {4065#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {4061#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:55:44,506 INFO L273 TraceCheckUtils]: 30: Hoare triple {4065#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {4065#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:55:44,507 INFO L273 TraceCheckUtils]: 29: Hoare triple {4072#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {4065#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:55:44,507 INFO L273 TraceCheckUtils]: 28: Hoare triple {4072#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {4072#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:55:44,508 INFO L273 TraceCheckUtils]: 27: Hoare triple {4079#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {4072#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:55:44,509 INFO L273 TraceCheckUtils]: 26: Hoare triple {4079#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {4079#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:55:44,510 INFO L273 TraceCheckUtils]: 25: Hoare triple {4086#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {4079#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:55:44,511 INFO L273 TraceCheckUtils]: 24: Hoare triple {4086#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {4086#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:55:44,512 INFO L273 TraceCheckUtils]: 23: Hoare triple {4093#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4086#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:55:44,512 INFO L273 TraceCheckUtils]: 22: Hoare triple {4093#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {4093#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:55:44,513 INFO L273 TraceCheckUtils]: 21: Hoare triple {4100#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {4093#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:55:44,514 INFO L273 TraceCheckUtils]: 20: Hoare triple {4100#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {4100#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:55:44,515 INFO L273 TraceCheckUtils]: 19: Hoare triple {4107#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4100#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:55:44,516 INFO L273 TraceCheckUtils]: 18: Hoare triple {4107#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {4107#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:55:44,517 INFO L273 TraceCheckUtils]: 17: Hoare triple {4114#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4107#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:55:44,517 INFO L273 TraceCheckUtils]: 16: Hoare triple {4114#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {4114#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:55:44,518 INFO L273 TraceCheckUtils]: 15: Hoare triple {4121#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4114#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:55:44,519 INFO L273 TraceCheckUtils]: 14: Hoare triple {4121#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {4121#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:55:44,520 INFO L273 TraceCheckUtils]: 13: Hoare triple {4128#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {4121#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:55:44,521 INFO L273 TraceCheckUtils]: 12: Hoare triple {4128#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {4128#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:55:44,522 INFO L273 TraceCheckUtils]: 11: Hoare triple {4135#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4128#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:55:44,522 INFO L273 TraceCheckUtils]: 10: Hoare triple {4135#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {4135#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:55:44,523 INFO L273 TraceCheckUtils]: 9: Hoare triple {4142#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4135#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:55:44,524 INFO L273 TraceCheckUtils]: 8: Hoare triple {4142#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {4142#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:55:44,525 INFO L273 TraceCheckUtils]: 7: Hoare triple {4149#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {4142#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:55:44,525 INFO L273 TraceCheckUtils]: 6: Hoare triple {4149#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {4149#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:55:44,527 INFO L273 TraceCheckUtils]: 5: Hoare triple {4156#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4149#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:55:44,527 INFO L273 TraceCheckUtils]: 4: Hoare triple {4156#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {4156#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:55:44,528 INFO L273 TraceCheckUtils]: 3: Hoare triple {4163#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {4156#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:55:44,529 INFO L273 TraceCheckUtils]: 2: Hoare triple {4163#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {4163#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:55:44,530 INFO L273 TraceCheckUtils]: 1: Hoare triple {4170#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {4163#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:55:44,531 INFO L273 TraceCheckUtils]: 0: Hoare triple {3909#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {4170#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:55:44,537 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:44,555 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:55:44,555 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 56 [2019-02-27 12:55:44,556 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:55:44,556 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 35 [2019-02-27 12:55:44,556 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:55:44,556 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 39 states. [2019-02-27 12:55:44,638 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 69 edges. 69 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:55:44,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 39 states [2019-02-27 12:55:44,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2019-02-27 12:55:44,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=464, Invalid=2842, Unknown=0, NotChecked=0, Total=3306 [2019-02-27 12:55:44,640 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand 39 states. [2019-02-27 12:55:46,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:46,555 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2019-02-27 12:55:46,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-02-27 12:55:46,556 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 35 [2019-02-27 12:55:46,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:55:46,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-02-27 12:55:46,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 40 transitions. [2019-02-27 12:55:46,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-02-27 12:55:46,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 40 transitions. [2019-02-27 12:55:46,558 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 21 states and 40 transitions. [2019-02-27 12:55:46,882 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 40 edges. 40 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:55:46,883 INFO L225 Difference]: With dead ends: 40 [2019-02-27 12:55:46,883 INFO L226 Difference]: Without dead ends: 39 [2019-02-27 12:55:46,885 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=464, Invalid=2842, Unknown=0, NotChecked=0, Total=3306 [2019-02-27 12:55:46,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-02-27 12:55:46,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2019-02-27 12:55:46,932 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:55:46,932 INFO L82 GeneralOperation]: Start isEquivalent. First operand 39 states. Second operand 38 states. [2019-02-27 12:55:46,932 INFO L74 IsIncluded]: Start isIncluded. First operand 39 states. Second operand 38 states. [2019-02-27 12:55:46,932 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 38 states. [2019-02-27 12:55:46,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:46,933 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2019-02-27 12:55:46,933 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 39 transitions. [2019-02-27 12:55:46,934 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:55:46,934 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:55:46,934 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand 39 states. [2019-02-27 12:55:46,934 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 39 states. [2019-02-27 12:55:46,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:46,935 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2019-02-27 12:55:46,936 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 39 transitions. [2019-02-27 12:55:46,936 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:55:46,936 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:55:46,936 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:55:46,936 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:55:46,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-02-27 12:55:46,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions. [2019-02-27 12:55:46,937 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 35 [2019-02-27 12:55:46,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:55:46,937 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions. [2019-02-27 12:55:46,937 INFO L481 AbstractCegarLoop]: Interpolant automaton has 39 states. [2019-02-27 12:55:46,938 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2019-02-27 12:55:46,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-02-27 12:55:46,938 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:55:46,938 INFO L402 BasicCegarLoop]: trace histogram [18, 17, 1, 1] [2019-02-27 12:55:46,938 INFO L423 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:55:46,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:55:46,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1543242050, now seen corresponding path program 17 times [2019-02-27 12:55:46,939 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:55:46,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:55:46,939 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 12:55:46,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:55:46,940 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:55:46,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:48,069 INFO L273 TraceCheckUtils]: 0: Hoare triple {4366#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {4368#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 0) (<= main_n 17)))} is VALID [2019-02-27 12:55:48,071 INFO L273 TraceCheckUtils]: 1: Hoare triple {4368#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 0) (<= main_n 17)))} assume a[i] != 23;i := i + 4; {4369#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 17 main_n)) (or (<= main_i 4) (<= main_n 17)))} is VALID [2019-02-27 12:55:48,072 INFO L273 TraceCheckUtils]: 2: Hoare triple {4369#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 17 main_n)) (or (<= main_i 4) (<= main_n 17)))} assume i <= n * 4; {4369#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 17 main_n)) (or (<= main_i 4) (<= main_n 17)))} is VALID [2019-02-27 12:55:48,073 INFO L273 TraceCheckUtils]: 3: Hoare triple {4369#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 17 main_n)) (or (<= main_i 4) (<= main_n 17)))} assume a[i] != 23;i := i + 4; {4370#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 8) (<= main_n 17)))} is VALID [2019-02-27 12:55:48,074 INFO L273 TraceCheckUtils]: 4: Hoare triple {4370#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 8) (<= main_n 17)))} assume i <= n * 4; {4370#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 8) (<= main_n 17)))} is VALID [2019-02-27 12:55:48,075 INFO L273 TraceCheckUtils]: 5: Hoare triple {4370#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 8) (<= main_n 17)))} assume a[i] != 23;i := i + 4; {4371#(and (or (<= main_n 17) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2019-02-27 12:55:48,076 INFO L273 TraceCheckUtils]: 6: Hoare triple {4371#(and (or (<= main_n 17) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume i <= n * 4; {4371#(and (or (<= main_n 17) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2019-02-27 12:55:48,077 INFO L273 TraceCheckUtils]: 7: Hoare triple {4371#(and (or (<= main_n 17) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume a[i] != 23;i := i + 4; {4372#(and (or (<= main_i 16) (<= main_n 17)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2019-02-27 12:55:48,078 INFO L273 TraceCheckUtils]: 8: Hoare triple {4372#(and (or (<= main_i 16) (<= main_n 17)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume i <= n * 4; {4372#(and (or (<= main_i 16) (<= main_n 17)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2019-02-27 12:55:48,079 INFO L273 TraceCheckUtils]: 9: Hoare triple {4372#(and (or (<= main_i 16) (<= main_n 17)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume a[i] != 23;i := i + 4; {4373#(and (or (< 17 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 17)))} is VALID [2019-02-27 12:55:48,080 INFO L273 TraceCheckUtils]: 10: Hoare triple {4373#(and (or (< 17 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 17)))} assume i <= n * 4; {4373#(and (or (< 17 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 17)))} is VALID [2019-02-27 12:55:48,081 INFO L273 TraceCheckUtils]: 11: Hoare triple {4373#(and (or (< 17 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 17)))} assume a[i] != 23;i := i + 4; {4374#(and (or (<= main_i 24) (<= main_n 17)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2019-02-27 12:55:48,089 INFO L273 TraceCheckUtils]: 12: Hoare triple {4374#(and (or (<= main_i 24) (<= main_n 17)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume i <= n * 4; {4374#(and (or (<= main_i 24) (<= main_n 17)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2019-02-27 12:55:48,090 INFO L273 TraceCheckUtils]: 13: Hoare triple {4374#(and (or (<= main_i 24) (<= main_n 17)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume a[i] != 23;i := i + 4; {4375#(and (or (<= main_n 17) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2019-02-27 12:55:48,091 INFO L273 TraceCheckUtils]: 14: Hoare triple {4375#(and (or (<= main_n 17) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume i <= n * 4; {4375#(and (or (<= main_n 17) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2019-02-27 12:55:48,092 INFO L273 TraceCheckUtils]: 15: Hoare triple {4375#(and (or (<= main_n 17) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume a[i] != 23;i := i + 4; {4376#(and (or (<= main_i 32) (<= main_n 17)) (or (< 17 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:48,092 INFO L273 TraceCheckUtils]: 16: Hoare triple {4376#(and (or (<= main_i 32) (<= main_n 17)) (or (< 17 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {4376#(and (or (<= main_i 32) (<= main_n 17)) (or (< 17 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:48,093 INFO L273 TraceCheckUtils]: 17: Hoare triple {4376#(and (or (<= main_i 32) (<= main_n 17)) (or (< 17 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {4377#(and (or (<= main_i 36) (<= main_n 17)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 17 main_n)))} is VALID [2019-02-27 12:55:48,093 INFO L273 TraceCheckUtils]: 18: Hoare triple {4377#(and (or (<= main_i 36) (<= main_n 17)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 17 main_n)))} assume i <= n * 4; {4377#(and (or (<= main_i 36) (<= main_n 17)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 17 main_n)))} is VALID [2019-02-27 12:55:48,094 INFO L273 TraceCheckUtils]: 19: Hoare triple {4377#(and (or (<= main_i 36) (<= main_n 17)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 17 main_n)))} assume a[i] != 23;i := i + 4; {4378#(and (or (< 17 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 17)))} is VALID [2019-02-27 12:55:48,094 INFO L273 TraceCheckUtils]: 20: Hoare triple {4378#(and (or (< 17 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 17)))} assume i <= n * 4; {4378#(and (or (< 17 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 17)))} is VALID [2019-02-27 12:55:48,095 INFO L273 TraceCheckUtils]: 21: Hoare triple {4378#(and (or (< 17 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 17)))} assume a[i] != 23;i := i + 4; {4379#(and (or (<= main_n 17) (<= main_i 44)) (or (< 17 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:48,096 INFO L273 TraceCheckUtils]: 22: Hoare triple {4379#(and (or (<= main_n 17) (<= main_i 44)) (or (< 17 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {4379#(and (or (<= main_n 17) (<= main_i 44)) (or (< 17 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:48,097 INFO L273 TraceCheckUtils]: 23: Hoare triple {4379#(and (or (<= main_n 17) (<= main_i 44)) (or (< 17 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {4380#(and (or (<= main_i 48) (<= main_n 17)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2019-02-27 12:55:48,098 INFO L273 TraceCheckUtils]: 24: Hoare triple {4380#(and (or (<= main_i 48) (<= main_n 17)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume i <= n * 4; {4380#(and (or (<= main_i 48) (<= main_n 17)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2019-02-27 12:55:48,099 INFO L273 TraceCheckUtils]: 25: Hoare triple {4380#(and (or (<= main_i 48) (<= main_n 17)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume a[i] != 23;i := i + 4; {4381#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 52) (<= main_n 17)))} is VALID [2019-02-27 12:55:48,100 INFO L273 TraceCheckUtils]: 26: Hoare triple {4381#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 52) (<= main_n 17)))} assume i <= n * 4; {4381#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 52) (<= main_n 17)))} is VALID [2019-02-27 12:55:48,101 INFO L273 TraceCheckUtils]: 27: Hoare triple {4381#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 52) (<= main_n 17)))} assume a[i] != 23;i := i + 4; {4382#(and (or (<= main_i 56) (<= main_n 17)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2019-02-27 12:55:48,102 INFO L273 TraceCheckUtils]: 28: Hoare triple {4382#(and (or (<= main_i 56) (<= main_n 17)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume i <= n * 4; {4382#(and (or (<= main_i 56) (<= main_n 17)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2019-02-27 12:55:48,103 INFO L273 TraceCheckUtils]: 29: Hoare triple {4382#(and (or (<= main_i 56) (<= main_n 17)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume a[i] != 23;i := i + 4; {4383#(and (or (< 17 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 17)))} is VALID [2019-02-27 12:55:48,104 INFO L273 TraceCheckUtils]: 30: Hoare triple {4383#(and (or (< 17 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 17)))} assume i <= n * 4; {4383#(and (or (< 17 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 17)))} is VALID [2019-02-27 12:55:48,105 INFO L273 TraceCheckUtils]: 31: Hoare triple {4383#(and (or (< 17 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 17)))} assume a[i] != 23;i := i + 4; {4384#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 64) (<= main_n 17)))} is VALID [2019-02-27 12:55:48,105 INFO L273 TraceCheckUtils]: 32: Hoare triple {4384#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 64) (<= main_n 17)))} assume i <= n * 4; {4384#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 64) (<= main_n 17)))} is VALID [2019-02-27 12:55:48,107 INFO L273 TraceCheckUtils]: 33: Hoare triple {4384#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 64) (<= main_n 17)))} assume a[i] != 23;i := i + 4; {4385#(and (or (<= main_n 17) (<= main_i 68)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 17 main_n)))} is VALID [2019-02-27 12:55:48,108 INFO L273 TraceCheckUtils]: 34: Hoare triple {4385#(and (or (<= main_n 17) (<= main_i 68)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 17 main_n)))} assume i <= n * 4; {4386#(and (or (< 17 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 68))} is VALID [2019-02-27 12:55:48,109 INFO L273 TraceCheckUtils]: 35: Hoare triple {4386#(and (or (< 17 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 68))} assume a[i] != 23;i := i + 4; {4387#(and (< 17 main_n) (<= main_i 72))} is VALID [2019-02-27 12:55:48,109 INFO L273 TraceCheckUtils]: 36: Hoare triple {4387#(and (< 17 main_n) (<= main_i 72))} assume !(i <= n * 4); {4367#false} is VALID [2019-02-27 12:55:48,116 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:48,117 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:55:48,117 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:55:48,117 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:55:48,117 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:55:48,117 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:55:48,117 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:55:48,125 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-27 12:55:48,125 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-27 12:55:48,150 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2019-02-27 12:55:48,150 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 12:55:48,151 WARN L254 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 41 conjunts are in the unsatisfiable core [2019-02-27 12:55:48,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:48,162 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:55:48,179 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:55:48,180 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:55:48,183 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:55:48,184 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:55:48,186 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:55:48,186 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_21]. (and (= (store v_main_a_21 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-27 12:55:48,186 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:55:48,927 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:55:48,929 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:55:48,935 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:55:48,935 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:55:48,939 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:55:48,939 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 72) (= 23 (select main_a .cse0)) (<= 68 .cse0) (not (= (select main_a 68) 23)))) [2019-02-27 12:55:48,939 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 68 .cse0)) (<= main_i 72) (<= 68 .cse0))) [2019-02-27 12:55:48,965 INFO L273 TraceCheckUtils]: 0: Hoare triple {4366#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {4391#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:48,966 INFO L273 TraceCheckUtils]: 1: Hoare triple {4391#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4395#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:55:48,966 INFO L273 TraceCheckUtils]: 2: Hoare triple {4395#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {4395#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:55:48,967 INFO L273 TraceCheckUtils]: 3: Hoare triple {4395#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {4402#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:48,967 INFO L273 TraceCheckUtils]: 4: Hoare triple {4402#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4402#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:48,968 INFO L273 TraceCheckUtils]: 5: Hoare triple {4402#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4409#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:55:48,969 INFO L273 TraceCheckUtils]: 6: Hoare triple {4409#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {4409#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:55:48,969 INFO L273 TraceCheckUtils]: 7: Hoare triple {4409#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {4416#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:48,970 INFO L273 TraceCheckUtils]: 8: Hoare triple {4416#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4416#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:48,971 INFO L273 TraceCheckUtils]: 9: Hoare triple {4416#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4423#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:48,971 INFO L273 TraceCheckUtils]: 10: Hoare triple {4423#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4423#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:48,973 INFO L273 TraceCheckUtils]: 11: Hoare triple {4423#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4430#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:48,974 INFO L273 TraceCheckUtils]: 12: Hoare triple {4430#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4430#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:48,975 INFO L273 TraceCheckUtils]: 13: Hoare triple {4430#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4437#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:48,975 INFO L273 TraceCheckUtils]: 14: Hoare triple {4437#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4437#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:48,976 INFO L273 TraceCheckUtils]: 15: Hoare triple {4437#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4444#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:48,977 INFO L273 TraceCheckUtils]: 16: Hoare triple {4444#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4444#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:48,977 INFO L273 TraceCheckUtils]: 17: Hoare triple {4444#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4451#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:48,978 INFO L273 TraceCheckUtils]: 18: Hoare triple {4451#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4451#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:48,979 INFO L273 TraceCheckUtils]: 19: Hoare triple {4451#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4458#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:48,979 INFO L273 TraceCheckUtils]: 20: Hoare triple {4458#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4458#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:48,980 INFO L273 TraceCheckUtils]: 21: Hoare triple {4458#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4465#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:48,981 INFO L273 TraceCheckUtils]: 22: Hoare triple {4465#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4465#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:48,981 INFO L273 TraceCheckUtils]: 23: Hoare triple {4465#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4472#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:48,982 INFO L273 TraceCheckUtils]: 24: Hoare triple {4472#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4472#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:48,983 INFO L273 TraceCheckUtils]: 25: Hoare triple {4472#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4479#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:48,983 INFO L273 TraceCheckUtils]: 26: Hoare triple {4479#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4479#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:48,984 INFO L273 TraceCheckUtils]: 27: Hoare triple {4479#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4486#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:48,985 INFO L273 TraceCheckUtils]: 28: Hoare triple {4486#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4486#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:48,986 INFO L273 TraceCheckUtils]: 29: Hoare triple {4486#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4493#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:48,986 INFO L273 TraceCheckUtils]: 30: Hoare triple {4493#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4493#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:48,987 INFO L273 TraceCheckUtils]: 31: Hoare triple {4493#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4500#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:48,988 INFO L273 TraceCheckUtils]: 32: Hoare triple {4500#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4500#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:48,988 INFO L273 TraceCheckUtils]: 33: Hoare triple {4500#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4507#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:48,989 INFO L273 TraceCheckUtils]: 34: Hoare triple {4507#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4511#(and (<= main_i (* 4 main_n)) (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:48,990 INFO L273 TraceCheckUtils]: 35: Hoare triple {4511#(and (<= main_i (* 4 main_n)) (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4387#(and (< 17 main_n) (<= main_i 72))} is VALID [2019-02-27 12:55:48,991 INFO L273 TraceCheckUtils]: 36: Hoare triple {4387#(and (< 17 main_n) (<= main_i 72))} assume !(i <= n * 4); {4367#false} is VALID [2019-02-27 12:55:48,995 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:48,995 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:55:50,197 INFO L273 TraceCheckUtils]: 36: Hoare triple {4518#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {4367#false} is VALID [2019-02-27 12:55:50,198 INFO L273 TraceCheckUtils]: 35: Hoare triple {4522#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {4518#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:55:50,199 INFO L273 TraceCheckUtils]: 34: Hoare triple {4526#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {4522#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:55:50,200 INFO L273 TraceCheckUtils]: 33: Hoare triple {4530#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {4526#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:55:50,200 INFO L273 TraceCheckUtils]: 32: Hoare triple {4530#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {4530#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:55:50,201 INFO L273 TraceCheckUtils]: 31: Hoare triple {4537#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {4530#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:55:50,202 INFO L273 TraceCheckUtils]: 30: Hoare triple {4537#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {4537#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:55:50,203 INFO L273 TraceCheckUtils]: 29: Hoare triple {4544#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {4537#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:55:50,204 INFO L273 TraceCheckUtils]: 28: Hoare triple {4544#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {4544#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:55:50,205 INFO L273 TraceCheckUtils]: 27: Hoare triple {4551#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {4544#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:55:50,205 INFO L273 TraceCheckUtils]: 26: Hoare triple {4551#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {4551#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:55:50,206 INFO L273 TraceCheckUtils]: 25: Hoare triple {4558#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4551#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:55:50,207 INFO L273 TraceCheckUtils]: 24: Hoare triple {4558#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {4558#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:55:50,208 INFO L273 TraceCheckUtils]: 23: Hoare triple {4565#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {4558#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:55:50,209 INFO L273 TraceCheckUtils]: 22: Hoare triple {4565#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {4565#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:55:50,210 INFO L273 TraceCheckUtils]: 21: Hoare triple {4572#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4565#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:55:50,210 INFO L273 TraceCheckUtils]: 20: Hoare triple {4572#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {4572#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:55:50,211 INFO L273 TraceCheckUtils]: 19: Hoare triple {4579#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4572#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:55:50,212 INFO L273 TraceCheckUtils]: 18: Hoare triple {4579#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {4579#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:55:50,213 INFO L273 TraceCheckUtils]: 17: Hoare triple {4586#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4579#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:55:50,213 INFO L273 TraceCheckUtils]: 16: Hoare triple {4586#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {4586#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:55:50,214 INFO L273 TraceCheckUtils]: 15: Hoare triple {4593#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {4586#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:55:50,215 INFO L273 TraceCheckUtils]: 14: Hoare triple {4593#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {4593#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:55:50,216 INFO L273 TraceCheckUtils]: 13: Hoare triple {4600#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4593#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:55:50,217 INFO L273 TraceCheckUtils]: 12: Hoare triple {4600#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {4600#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:55:50,218 INFO L273 TraceCheckUtils]: 11: Hoare triple {4607#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4600#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:55:50,218 INFO L273 TraceCheckUtils]: 10: Hoare triple {4607#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {4607#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:55:50,219 INFO L273 TraceCheckUtils]: 9: Hoare triple {4614#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {4607#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:55:50,220 INFO L273 TraceCheckUtils]: 8: Hoare triple {4614#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {4614#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:55:50,221 INFO L273 TraceCheckUtils]: 7: Hoare triple {4621#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4614#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:55:50,221 INFO L273 TraceCheckUtils]: 6: Hoare triple {4621#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {4621#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:55:50,222 INFO L273 TraceCheckUtils]: 5: Hoare triple {4628#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {4621#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:55:50,223 INFO L273 TraceCheckUtils]: 4: Hoare triple {4628#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {4628#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:55:50,224 INFO L273 TraceCheckUtils]: 3: Hoare triple {4635#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {4628#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:55:50,225 INFO L273 TraceCheckUtils]: 2: Hoare triple {4635#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {4635#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:55:50,226 INFO L273 TraceCheckUtils]: 1: Hoare triple {4642#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {4635#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:55:50,227 INFO L273 TraceCheckUtils]: 0: Hoare triple {4366#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {4642#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:55:50,232 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:50,250 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:55:50,251 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 59 [2019-02-27 12:55:50,251 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:55:50,251 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 37 [2019-02-27 12:55:50,251 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:55:50,251 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 41 states. [2019-02-27 12:55:50,372 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 73 edges. 73 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:55:50,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 41 states [2019-02-27 12:55:50,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2019-02-27 12:55:50,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=508, Invalid=3152, Unknown=0, NotChecked=0, Total=3660 [2019-02-27 12:55:50,375 INFO L87 Difference]: Start difference. First operand 38 states and 38 transitions. Second operand 41 states. [2019-02-27 12:55:52,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:52,709 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2019-02-27 12:55:52,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-02-27 12:55:52,709 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 37 [2019-02-27 12:55:52,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:55:52,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-02-27 12:55:52,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 42 transitions. [2019-02-27 12:55:52,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-02-27 12:55:52,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 42 transitions. [2019-02-27 12:55:52,712 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 22 states and 42 transitions. [2019-02-27 12:55:52,769 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:55:52,770 INFO L225 Difference]: With dead ends: 42 [2019-02-27 12:55:52,770 INFO L226 Difference]: Without dead ends: 41 [2019-02-27 12:55:52,772 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 836 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=508, Invalid=3152, Unknown=0, NotChecked=0, Total=3660 [2019-02-27 12:55:52,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-02-27 12:55:52,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2019-02-27 12:55:52,900 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:55:52,900 INFO L82 GeneralOperation]: Start isEquivalent. First operand 41 states. Second operand 40 states. [2019-02-27 12:55:52,900 INFO L74 IsIncluded]: Start isIncluded. First operand 41 states. Second operand 40 states. [2019-02-27 12:55:52,900 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 40 states. [2019-02-27 12:55:52,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:52,902 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2019-02-27 12:55:52,902 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2019-02-27 12:55:52,902 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:55:52,902 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:55:52,902 INFO L74 IsIncluded]: Start isIncluded. First operand 40 states. Second operand 41 states. [2019-02-27 12:55:52,902 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 41 states. [2019-02-27 12:55:52,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:52,903 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2019-02-27 12:55:52,903 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2019-02-27 12:55:52,903 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:55:52,903 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:55:52,903 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:55:52,903 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:55:52,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-02-27 12:55:52,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2019-02-27 12:55:52,904 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 37 [2019-02-27 12:55:52,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:55:52,904 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2019-02-27 12:55:52,905 INFO L481 AbstractCegarLoop]: Interpolant automaton has 41 states. [2019-02-27 12:55:52,905 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2019-02-27 12:55:52,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-02-27 12:55:52,905 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:55:52,905 INFO L402 BasicCegarLoop]: trace histogram [19, 18, 1, 1] [2019-02-27 12:55:52,905 INFO L423 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:55:52,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:55:52,906 INFO L82 PathProgramCache]: Analyzing trace with hash 1291894020, now seen corresponding path program 18 times [2019-02-27 12:55:52,906 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:55:52,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:55:52,907 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 12:55:52,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:55:52,907 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:55:52,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:53,305 WARN L181 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-02-27 12:55:54,126 INFO L273 TraceCheckUtils]: 0: Hoare triple {4848#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {4850#(and (or (<= main_n 18) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} is VALID [2019-02-27 12:55:54,127 INFO L273 TraceCheckUtils]: 1: Hoare triple {4850#(and (or (<= main_n 18) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} assume a[i] != 23;i := i + 4; {4851#(and (or (< 18 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 18) (<= main_i 4)))} is VALID [2019-02-27 12:55:54,128 INFO L273 TraceCheckUtils]: 2: Hoare triple {4851#(and (or (< 18 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 18) (<= main_i 4)))} assume i <= n * 4; {4851#(and (or (< 18 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 18) (<= main_i 4)))} is VALID [2019-02-27 12:55:54,129 INFO L273 TraceCheckUtils]: 3: Hoare triple {4851#(and (or (< 18 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 18) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {4852#(and (or (<= main_n 18) (<= main_i 8)) (or (< 18 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:54,130 INFO L273 TraceCheckUtils]: 4: Hoare triple {4852#(and (or (<= main_n 18) (<= main_i 8)) (or (< 18 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {4852#(and (or (<= main_n 18) (<= main_i 8)) (or (< 18 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:54,131 INFO L273 TraceCheckUtils]: 5: Hoare triple {4852#(and (or (<= main_n 18) (<= main_i 8)) (or (< 18 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {4853#(and (or (< 18 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 12)))} is VALID [2019-02-27 12:55:54,132 INFO L273 TraceCheckUtils]: 6: Hoare triple {4853#(and (or (< 18 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 12)))} assume i <= n * 4; {4853#(and (or (< 18 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 12)))} is VALID [2019-02-27 12:55:54,133 INFO L273 TraceCheckUtils]: 7: Hoare triple {4853#(and (or (< 18 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {4854#(and (or (<= main_n 18) (<= main_i 16)) (or (< 18 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:54,134 INFO L273 TraceCheckUtils]: 8: Hoare triple {4854#(and (or (<= main_n 18) (<= main_i 16)) (or (< 18 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {4854#(and (or (<= main_n 18) (<= main_i 16)) (or (< 18 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:54,135 INFO L273 TraceCheckUtils]: 9: Hoare triple {4854#(and (or (<= main_n 18) (<= main_i 16)) (or (< 18 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {4855#(and (or (<= main_n 18) (<= main_i 20)) (or (< 18 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:54,136 INFO L273 TraceCheckUtils]: 10: Hoare triple {4855#(and (or (<= main_n 18) (<= main_i 20)) (or (< 18 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {4855#(and (or (<= main_n 18) (<= main_i 20)) (or (< 18 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:54,137 INFO L273 TraceCheckUtils]: 11: Hoare triple {4855#(and (or (<= main_n 18) (<= main_i 20)) (or (< 18 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {4856#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)) (or (<= main_n 18) (<= main_i 24)))} is VALID [2019-02-27 12:55:54,138 INFO L273 TraceCheckUtils]: 12: Hoare triple {4856#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)) (or (<= main_n 18) (<= main_i 24)))} assume i <= n * 4; {4856#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)) (or (<= main_n 18) (<= main_i 24)))} is VALID [2019-02-27 12:55:54,139 INFO L273 TraceCheckUtils]: 13: Hoare triple {4856#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)) (or (<= main_n 18) (<= main_i 24)))} assume a[i] != 23;i := i + 4; {4857#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)) (or (<= main_n 18) (<= main_i 28)))} is VALID [2019-02-27 12:55:54,139 INFO L273 TraceCheckUtils]: 14: Hoare triple {4857#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)) (or (<= main_n 18) (<= main_i 28)))} assume i <= n * 4; {4857#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)) (or (<= main_n 18) (<= main_i 28)))} is VALID [2019-02-27 12:55:54,141 INFO L273 TraceCheckUtils]: 15: Hoare triple {4857#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)) (or (<= main_n 18) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {4858#(and (or (< 18 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 18)))} is VALID [2019-02-27 12:55:54,141 INFO L273 TraceCheckUtils]: 16: Hoare triple {4858#(and (or (< 18 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 18)))} assume i <= n * 4; {4858#(and (or (< 18 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 18)))} is VALID [2019-02-27 12:55:54,143 INFO L273 TraceCheckUtils]: 17: Hoare triple {4858#(and (or (< 18 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 18)))} assume a[i] != 23;i := i + 4; {4859#(and (or (<= main_n 18) (<= main_i 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 18 main_n)))} is VALID [2019-02-27 12:55:54,143 INFO L273 TraceCheckUtils]: 18: Hoare triple {4859#(and (or (<= main_n 18) (<= main_i 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 18 main_n)))} assume i <= n * 4; {4859#(and (or (<= main_n 18) (<= main_i 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 18 main_n)))} is VALID [2019-02-27 12:55:54,144 INFO L273 TraceCheckUtils]: 19: Hoare triple {4859#(and (or (<= main_n 18) (<= main_i 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 18 main_n)))} assume a[i] != 23;i := i + 4; {4860#(and (or (< 18 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 40)))} is VALID [2019-02-27 12:55:54,145 INFO L273 TraceCheckUtils]: 20: Hoare triple {4860#(and (or (< 18 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 40)))} assume i <= n * 4; {4860#(and (or (< 18 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 40)))} is VALID [2019-02-27 12:55:54,146 INFO L273 TraceCheckUtils]: 21: Hoare triple {4860#(and (or (< 18 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 40)))} assume a[i] != 23;i := i + 4; {4861#(and (or (< 18 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 44)))} is VALID [2019-02-27 12:55:54,147 INFO L273 TraceCheckUtils]: 22: Hoare triple {4861#(and (or (< 18 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 44)))} assume i <= n * 4; {4861#(and (or (< 18 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 44)))} is VALID [2019-02-27 12:55:54,148 INFO L273 TraceCheckUtils]: 23: Hoare triple {4861#(and (or (< 18 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 44)))} assume a[i] != 23;i := i + 4; {4862#(and (or (<= main_n 18) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} is VALID [2019-02-27 12:55:54,149 INFO L273 TraceCheckUtils]: 24: Hoare triple {4862#(and (or (<= main_n 18) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} assume i <= n * 4; {4862#(and (or (<= main_n 18) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} is VALID [2019-02-27 12:55:54,150 INFO L273 TraceCheckUtils]: 25: Hoare triple {4862#(and (or (<= main_n 18) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} assume a[i] != 23;i := i + 4; {4863#(and (or (<= main_n 18) (<= main_i 52)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} is VALID [2019-02-27 12:55:54,151 INFO L273 TraceCheckUtils]: 26: Hoare triple {4863#(and (or (<= main_n 18) (<= main_i 52)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} assume i <= n * 4; {4863#(and (or (<= main_n 18) (<= main_i 52)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} is VALID [2019-02-27 12:55:54,152 INFO L273 TraceCheckUtils]: 27: Hoare triple {4863#(and (or (<= main_n 18) (<= main_i 52)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} assume a[i] != 23;i := i + 4; {4864#(and (or (< 18 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 56)))} is VALID [2019-02-27 12:55:54,153 INFO L273 TraceCheckUtils]: 28: Hoare triple {4864#(and (or (< 18 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 56)))} assume i <= n * 4; {4864#(and (or (< 18 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 56)))} is VALID [2019-02-27 12:55:54,154 INFO L273 TraceCheckUtils]: 29: Hoare triple {4864#(and (or (< 18 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 56)))} assume a[i] != 23;i := i + 4; {4865#(and (or (<= main_n 18) (<= main_i 60)) (or (< 18 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:54,154 INFO L273 TraceCheckUtils]: 30: Hoare triple {4865#(and (or (<= main_n 18) (<= main_i 60)) (or (< 18 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {4865#(and (or (<= main_n 18) (<= main_i 60)) (or (< 18 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:55:54,156 INFO L273 TraceCheckUtils]: 31: Hoare triple {4865#(and (or (<= main_n 18) (<= main_i 60)) (or (< 18 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {4866#(and (or (< 18 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 64)))} is VALID [2019-02-27 12:55:54,156 INFO L273 TraceCheckUtils]: 32: Hoare triple {4866#(and (or (< 18 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 64)))} assume i <= n * 4; {4866#(and (or (< 18 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 64)))} is VALID [2019-02-27 12:55:54,157 INFO L273 TraceCheckUtils]: 33: Hoare triple {4866#(and (or (< 18 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 64)))} assume a[i] != 23;i := i + 4; {4867#(and (or (<= main_n 18) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} is VALID [2019-02-27 12:55:54,158 INFO L273 TraceCheckUtils]: 34: Hoare triple {4867#(and (or (<= main_n 18) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} assume i <= n * 4; {4867#(and (or (<= main_n 18) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} is VALID [2019-02-27 12:55:54,159 INFO L273 TraceCheckUtils]: 35: Hoare triple {4867#(and (or (<= main_n 18) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} assume a[i] != 23;i := i + 4; {4868#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 18 main_n)) (or (<= main_n 18) (<= main_i 72)))} is VALID [2019-02-27 12:55:54,160 INFO L273 TraceCheckUtils]: 36: Hoare triple {4868#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 18 main_n)) (or (<= main_n 18) (<= main_i 72)))} assume i <= n * 4; {4869#(and (<= main_i 72) (or (< 18 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} is VALID [2019-02-27 12:55:54,161 INFO L273 TraceCheckUtils]: 37: Hoare triple {4869#(and (<= main_i 72) (or (< 18 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} assume a[i] != 23;i := i + 4; {4870#(and (<= main_i 76) (<= 19 main_n))} is VALID [2019-02-27 12:55:54,162 INFO L273 TraceCheckUtils]: 38: Hoare triple {4870#(and (<= main_i 76) (<= 19 main_n))} assume !(i <= n * 4); {4849#false} is VALID [2019-02-27 12:55:54,171 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:54,171 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:55:54,171 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:55:54,171 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:55:54,171 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:55:54,172 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:55:54,172 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:55:54,179 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-27 12:55:54,179 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-27 12:55:54,191 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-27 12:55:54,191 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 12:55:54,193 WARN L254 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 43 conjunts are in the unsatisfiable core [2019-02-27 12:55:54,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:55:54,207 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:55:54,219 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:55:54,220 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:55:54,225 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:55:54,225 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:55:54,227 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:55:54,228 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_22]. (and (= (store v_main_a_22 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-27 12:55:54,228 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:55:55,006 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:55:55,009 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:55:55,013 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:55:55,013 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:55:55,016 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:55:55,016 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= 23 (select main_a 72))) (<= main_i 76) (<= 72 .cse0) (= 23 (select main_a .cse0)))) [2019-02-27 12:55:55,016 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 76) (<= 72 .cse0) (not (= 72 .cse0)))) [2019-02-27 12:55:55,051 INFO L273 TraceCheckUtils]: 0: Hoare triple {4848#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {4874#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:55,051 INFO L273 TraceCheckUtils]: 1: Hoare triple {4874#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4878#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:55:55,052 INFO L273 TraceCheckUtils]: 2: Hoare triple {4878#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {4878#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:55:55,052 INFO L273 TraceCheckUtils]: 3: Hoare triple {4878#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {4885#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:55,053 INFO L273 TraceCheckUtils]: 4: Hoare triple {4885#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4885#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:55,053 INFO L273 TraceCheckUtils]: 5: Hoare triple {4885#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4892#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:55:55,054 INFO L273 TraceCheckUtils]: 6: Hoare triple {4892#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {4892#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:55:55,054 INFO L273 TraceCheckUtils]: 7: Hoare triple {4892#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {4899#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:55,055 INFO L273 TraceCheckUtils]: 8: Hoare triple {4899#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4899#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:55,056 INFO L273 TraceCheckUtils]: 9: Hoare triple {4899#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4906#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:55,056 INFO L273 TraceCheckUtils]: 10: Hoare triple {4906#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4906#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:55,057 INFO L273 TraceCheckUtils]: 11: Hoare triple {4906#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4913#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:55,058 INFO L273 TraceCheckUtils]: 12: Hoare triple {4913#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4913#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:55,059 INFO L273 TraceCheckUtils]: 13: Hoare triple {4913#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4920#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:55,059 INFO L273 TraceCheckUtils]: 14: Hoare triple {4920#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4920#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:55,060 INFO L273 TraceCheckUtils]: 15: Hoare triple {4920#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4927#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:55,061 INFO L273 TraceCheckUtils]: 16: Hoare triple {4927#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4927#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:55,061 INFO L273 TraceCheckUtils]: 17: Hoare triple {4927#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4934#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:55,062 INFO L273 TraceCheckUtils]: 18: Hoare triple {4934#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4934#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:55,063 INFO L273 TraceCheckUtils]: 19: Hoare triple {4934#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4941#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:55,063 INFO L273 TraceCheckUtils]: 20: Hoare triple {4941#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4941#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:55,064 INFO L273 TraceCheckUtils]: 21: Hoare triple {4941#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4948#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:55,065 INFO L273 TraceCheckUtils]: 22: Hoare triple {4948#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4948#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:55,065 INFO L273 TraceCheckUtils]: 23: Hoare triple {4948#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4955#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:55,066 INFO L273 TraceCheckUtils]: 24: Hoare triple {4955#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4955#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:55,067 INFO L273 TraceCheckUtils]: 25: Hoare triple {4955#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4962#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:55,068 INFO L273 TraceCheckUtils]: 26: Hoare triple {4962#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4962#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:55,068 INFO L273 TraceCheckUtils]: 27: Hoare triple {4962#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4969#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:55,069 INFO L273 TraceCheckUtils]: 28: Hoare triple {4969#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4969#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:55,070 INFO L273 TraceCheckUtils]: 29: Hoare triple {4969#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4976#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:55,070 INFO L273 TraceCheckUtils]: 30: Hoare triple {4976#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4976#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:55,071 INFO L273 TraceCheckUtils]: 31: Hoare triple {4976#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4983#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:55,072 INFO L273 TraceCheckUtils]: 32: Hoare triple {4983#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4983#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:55,072 INFO L273 TraceCheckUtils]: 33: Hoare triple {4983#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4990#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:55,073 INFO L273 TraceCheckUtils]: 34: Hoare triple {4990#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4990#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:55,074 INFO L273 TraceCheckUtils]: 35: Hoare triple {4990#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4997#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:55,074 INFO L273 TraceCheckUtils]: 36: Hoare triple {4997#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5001#(and (= main_i 72) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:55:55,075 INFO L273 TraceCheckUtils]: 37: Hoare triple {5001#(and (= main_i 72) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4870#(and (<= main_i 76) (<= 19 main_n))} is VALID [2019-02-27 12:55:55,076 INFO L273 TraceCheckUtils]: 38: Hoare triple {4870#(and (<= main_i 76) (<= 19 main_n))} assume !(i <= n * 4); {4849#false} is VALID [2019-02-27 12:55:55,081 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:55,081 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:55:56,408 INFO L273 TraceCheckUtils]: 38: Hoare triple {5008#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {4849#false} is VALID [2019-02-27 12:55:56,409 INFO L273 TraceCheckUtils]: 37: Hoare triple {5012#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {5008#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:55:56,410 INFO L273 TraceCheckUtils]: 36: Hoare triple {5016#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {5012#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:55:56,411 INFO L273 TraceCheckUtils]: 35: Hoare triple {5020#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {5016#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:55:56,412 INFO L273 TraceCheckUtils]: 34: Hoare triple {5020#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {5020#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:55:56,413 INFO L273 TraceCheckUtils]: 33: Hoare triple {5027#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {5020#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:55:56,413 INFO L273 TraceCheckUtils]: 32: Hoare triple {5027#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {5027#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:55:56,414 INFO L273 TraceCheckUtils]: 31: Hoare triple {5034#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {5027#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:55:56,415 INFO L273 TraceCheckUtils]: 30: Hoare triple {5034#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {5034#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:55:56,416 INFO L273 TraceCheckUtils]: 29: Hoare triple {5041#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {5034#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:55:56,417 INFO L273 TraceCheckUtils]: 28: Hoare triple {5041#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {5041#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:55:56,418 INFO L273 TraceCheckUtils]: 27: Hoare triple {5048#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5041#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:55:56,418 INFO L273 TraceCheckUtils]: 26: Hoare triple {5048#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {5048#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:55:56,419 INFO L273 TraceCheckUtils]: 25: Hoare triple {5055#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {5048#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:55:56,420 INFO L273 TraceCheckUtils]: 24: Hoare triple {5055#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {5055#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:55:56,421 INFO L273 TraceCheckUtils]: 23: Hoare triple {5062#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5055#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:55:56,421 INFO L273 TraceCheckUtils]: 22: Hoare triple {5062#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {5062#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:55:56,422 INFO L273 TraceCheckUtils]: 21: Hoare triple {5069#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5062#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:55:56,423 INFO L273 TraceCheckUtils]: 20: Hoare triple {5069#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {5069#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:55:56,424 INFO L273 TraceCheckUtils]: 19: Hoare triple {5076#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5069#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:55:56,425 INFO L273 TraceCheckUtils]: 18: Hoare triple {5076#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {5076#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:55:56,426 INFO L273 TraceCheckUtils]: 17: Hoare triple {5083#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {5076#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:55:56,426 INFO L273 TraceCheckUtils]: 16: Hoare triple {5083#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {5083#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:55:56,427 INFO L273 TraceCheckUtils]: 15: Hoare triple {5090#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5083#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:55:56,428 INFO L273 TraceCheckUtils]: 14: Hoare triple {5090#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {5090#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:55:56,429 INFO L273 TraceCheckUtils]: 13: Hoare triple {5097#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5090#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:55:56,429 INFO L273 TraceCheckUtils]: 12: Hoare triple {5097#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {5097#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:55:56,430 INFO L273 TraceCheckUtils]: 11: Hoare triple {5104#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {5097#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:55:56,431 INFO L273 TraceCheckUtils]: 10: Hoare triple {5104#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {5104#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:55:56,432 INFO L273 TraceCheckUtils]: 9: Hoare triple {5111#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5104#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:55:56,433 INFO L273 TraceCheckUtils]: 8: Hoare triple {5111#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {5111#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:55:56,434 INFO L273 TraceCheckUtils]: 7: Hoare triple {5118#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {5111#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:55:56,434 INFO L273 TraceCheckUtils]: 6: Hoare triple {5118#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {5118#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:55:56,435 INFO L273 TraceCheckUtils]: 5: Hoare triple {5125#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {5118#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:55:56,436 INFO L273 TraceCheckUtils]: 4: Hoare triple {5125#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {5125#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:55:56,437 INFO L273 TraceCheckUtils]: 3: Hoare triple {5132#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {5125#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:55:56,437 INFO L273 TraceCheckUtils]: 2: Hoare triple {5132#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {5132#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:55:56,438 INFO L273 TraceCheckUtils]: 1: Hoare triple {5139#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {5132#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:55:56,439 INFO L273 TraceCheckUtils]: 0: Hoare triple {4848#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {5139#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:55:56,446 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:55:56,465 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:55:56,465 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 62 [2019-02-27 12:55:56,465 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:55:56,465 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 39 [2019-02-27 12:55:56,466 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:55:56,466 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 43 states. [2019-02-27 12:55:56,556 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 77 edges. 77 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:55:56,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 43 states [2019-02-27 12:55:56,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2019-02-27 12:55:56,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=554, Invalid=3478, Unknown=0, NotChecked=0, Total=4032 [2019-02-27 12:55:56,558 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand 43 states. [2019-02-27 12:55:59,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:59,508 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2019-02-27 12:55:59,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-02-27 12:55:59,508 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 39 [2019-02-27 12:55:59,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:55:59,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-02-27 12:55:59,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 44 transitions. [2019-02-27 12:55:59,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-02-27 12:55:59,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 44 transitions. [2019-02-27 12:55:59,511 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 23 states and 44 transitions. [2019-02-27 12:55:59,564 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 44 edges. 44 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:55:59,565 INFO L225 Difference]: With dead ends: 44 [2019-02-27 12:55:59,565 INFO L226 Difference]: Without dead ends: 43 [2019-02-27 12:55:59,567 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 920 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=554, Invalid=3478, Unknown=0, NotChecked=0, Total=4032 [2019-02-27 12:55:59,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-02-27 12:55:59,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2019-02-27 12:55:59,606 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:55:59,606 INFO L82 GeneralOperation]: Start isEquivalent. First operand 43 states. Second operand 42 states. [2019-02-27 12:55:59,606 INFO L74 IsIncluded]: Start isIncluded. First operand 43 states. Second operand 42 states. [2019-02-27 12:55:59,606 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 42 states. [2019-02-27 12:55:59,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:59,608 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2019-02-27 12:55:59,608 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2019-02-27 12:55:59,608 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:55:59,608 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:55:59,609 INFO L74 IsIncluded]: Start isIncluded. First operand 42 states. Second operand 43 states. [2019-02-27 12:55:59,609 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 43 states. [2019-02-27 12:55:59,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:55:59,610 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2019-02-27 12:55:59,610 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2019-02-27 12:55:59,610 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:55:59,610 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:55:59,610 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:55:59,611 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:55:59,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-02-27 12:55:59,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2019-02-27 12:55:59,612 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 39 [2019-02-27 12:55:59,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:55:59,612 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2019-02-27 12:55:59,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has 43 states. [2019-02-27 12:55:59,612 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2019-02-27 12:55:59,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-02-27 12:55:59,613 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:55:59,613 INFO L402 BasicCegarLoop]: trace histogram [20, 19, 1, 1] [2019-02-27 12:55:59,613 INFO L423 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:55:59,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:55:59,613 INFO L82 PathProgramCache]: Analyzing trace with hash 264605766, now seen corresponding path program 19 times [2019-02-27 12:55:59,613 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:55:59,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:55:59,614 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 12:55:59,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:55:59,614 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:55:59,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:56:00,753 INFO L273 TraceCheckUtils]: 0: Hoare triple {5355#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {5357#(and (or (< 19 main_n) (<= 0 main_i)) (or (<= main_n 19) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:00,755 INFO L273 TraceCheckUtils]: 1: Hoare triple {5357#(and (or (< 19 main_n) (<= 0 main_i)) (or (<= main_n 19) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5358#(and (or (<= main_n 19) (<= main_i 4)) (or (< 19 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:00,756 INFO L273 TraceCheckUtils]: 2: Hoare triple {5358#(and (or (<= main_n 19) (<= main_i 4)) (or (< 19 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5358#(and (or (<= main_n 19) (<= main_i 4)) (or (< 19 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:00,757 INFO L273 TraceCheckUtils]: 3: Hoare triple {5358#(and (or (<= main_n 19) (<= main_i 4)) (or (< 19 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5359#(and (or (< 19 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:00,757 INFO L273 TraceCheckUtils]: 4: Hoare triple {5359#(and (or (< 19 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5359#(and (or (< 19 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:00,759 INFO L273 TraceCheckUtils]: 5: Hoare triple {5359#(and (or (< 19 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5360#(and (or (<= main_n 19) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))) (or (< 19 main_n) (<= 12 main_i)))} is VALID [2019-02-27 12:56:00,759 INFO L273 TraceCheckUtils]: 6: Hoare triple {5360#(and (or (<= main_n 19) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))) (or (< 19 main_n) (<= 12 main_i)))} assume i <= n * 4; {5360#(and (or (<= main_n 19) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))) (or (< 19 main_n) (<= 12 main_i)))} is VALID [2019-02-27 12:56:00,761 INFO L273 TraceCheckUtils]: 7: Hoare triple {5360#(and (or (<= main_n 19) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))) (or (< 19 main_n) (<= 12 main_i)))} assume a[i] != 23;i := i + 4; {5361#(and (or (< 19 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 19) (<= main_i 16)))} is VALID [2019-02-27 12:56:00,761 INFO L273 TraceCheckUtils]: 8: Hoare triple {5361#(and (or (< 19 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 19) (<= main_i 16)))} assume i <= n * 4; {5361#(and (or (< 19 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 19) (<= main_i 16)))} is VALID [2019-02-27 12:56:00,762 INFO L273 TraceCheckUtils]: 9: Hoare triple {5361#(and (or (< 19 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 19) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {5362#(and (or (<= main_n 19) (<= main_i 20)) (or (< 19 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:00,763 INFO L273 TraceCheckUtils]: 10: Hoare triple {5362#(and (or (<= main_n 19) (<= main_i 20)) (or (< 19 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5362#(and (or (<= main_n 19) (<= main_i 20)) (or (< 19 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:00,764 INFO L273 TraceCheckUtils]: 11: Hoare triple {5362#(and (or (<= main_n 19) (<= main_i 20)) (or (< 19 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5363#(and (or (< 19 main_n) (<= 24 main_i)) (or (<= main_n 19) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:00,765 INFO L273 TraceCheckUtils]: 12: Hoare triple {5363#(and (or (< 19 main_n) (<= 24 main_i)) (or (<= main_n 19) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5363#(and (or (< 19 main_n) (<= 24 main_i)) (or (<= main_n 19) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:00,766 INFO L273 TraceCheckUtils]: 13: Hoare triple {5363#(and (or (< 19 main_n) (<= 24 main_i)) (or (<= main_n 19) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5364#(and (or (<= main_n 19) (<= main_i 28)) (or (< 19 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:00,767 INFO L273 TraceCheckUtils]: 14: Hoare triple {5364#(and (or (<= main_n 19) (<= main_i 28)) (or (< 19 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5364#(and (or (<= main_n 19) (<= main_i 28)) (or (< 19 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:00,768 INFO L273 TraceCheckUtils]: 15: Hoare triple {5364#(and (or (<= main_n 19) (<= main_i 28)) (or (< 19 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5365#(and (or (< 19 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 32) (<= main_n 19)))} is VALID [2019-02-27 12:56:00,768 INFO L273 TraceCheckUtils]: 16: Hoare triple {5365#(and (or (< 19 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 32) (<= main_n 19)))} assume i <= n * 4; {5365#(and (or (< 19 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 32) (<= main_n 19)))} is VALID [2019-02-27 12:56:00,770 INFO L273 TraceCheckUtils]: 17: Hoare triple {5365#(and (or (< 19 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 32) (<= main_n 19)))} assume a[i] != 23;i := i + 4; {5366#(and (or (<= main_i 36) (<= main_n 19)) (or (< 19 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:00,770 INFO L273 TraceCheckUtils]: 18: Hoare triple {5366#(and (or (<= main_i 36) (<= main_n 19)) (or (< 19 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5366#(and (or (<= main_i 36) (<= main_n 19)) (or (< 19 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:00,771 INFO L273 TraceCheckUtils]: 19: Hoare triple {5366#(and (or (<= main_i 36) (<= main_n 19)) (or (< 19 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5367#(and (or (< 19 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:00,772 INFO L273 TraceCheckUtils]: 20: Hoare triple {5367#(and (or (< 19 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5367#(and (or (< 19 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:00,773 INFO L273 TraceCheckUtils]: 21: Hoare triple {5367#(and (or (< 19 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5368#(and (or (<= main_n 19) (<= main_i 44)) (or (< 19 main_n) (<= 44 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:00,774 INFO L273 TraceCheckUtils]: 22: Hoare triple {5368#(and (or (<= main_n 19) (<= main_i 44)) (or (< 19 main_n) (<= 44 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5368#(and (or (<= main_n 19) (<= main_i 44)) (or (< 19 main_n) (<= 44 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:00,775 INFO L273 TraceCheckUtils]: 23: Hoare triple {5368#(and (or (<= main_n 19) (<= main_i 44)) (or (< 19 main_n) (<= 44 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5369#(and (or (<= main_n 19) (<= main_i 48)) (or (< 19 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:00,776 INFO L273 TraceCheckUtils]: 24: Hoare triple {5369#(and (or (<= main_n 19) (<= main_i 48)) (or (< 19 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5369#(and (or (<= main_n 19) (<= main_i 48)) (or (< 19 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:00,777 INFO L273 TraceCheckUtils]: 25: Hoare triple {5369#(and (or (<= main_n 19) (<= main_i 48)) (or (< 19 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5370#(and (or (< 19 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:00,777 INFO L273 TraceCheckUtils]: 26: Hoare triple {5370#(and (or (< 19 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5370#(and (or (< 19 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:00,779 INFO L273 TraceCheckUtils]: 27: Hoare triple {5370#(and (or (< 19 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5371#(and (or (<= main_n 19) (<= main_i 56)) (or (< 19 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:00,779 INFO L273 TraceCheckUtils]: 28: Hoare triple {5371#(and (or (<= main_n 19) (<= main_i 56)) (or (< 19 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5371#(and (or (<= main_n 19) (<= main_i 56)) (or (< 19 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:00,780 INFO L273 TraceCheckUtils]: 29: Hoare triple {5371#(and (or (<= main_n 19) (<= main_i 56)) (or (< 19 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5372#(and (or (< 19 main_n) (<= 60 main_i)) (or (<= main_n 19) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:00,781 INFO L273 TraceCheckUtils]: 30: Hoare triple {5372#(and (or (< 19 main_n) (<= 60 main_i)) (or (<= main_n 19) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5372#(and (or (< 19 main_n) (<= 60 main_i)) (or (<= main_n 19) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:00,782 INFO L273 TraceCheckUtils]: 31: Hoare triple {5372#(and (or (< 19 main_n) (<= 60 main_i)) (or (<= main_n 19) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5373#(and (or (< 19 main_n) (<= 64 main_i)) (or (<= main_n 19) (<= main_i 64)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:00,783 INFO L273 TraceCheckUtils]: 32: Hoare triple {5373#(and (or (< 19 main_n) (<= 64 main_i)) (or (<= main_n 19) (<= main_i 64)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5373#(and (or (< 19 main_n) (<= 64 main_i)) (or (<= main_n 19) (<= main_i 64)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:00,784 INFO L273 TraceCheckUtils]: 33: Hoare triple {5373#(and (or (< 19 main_n) (<= 64 main_i)) (or (<= main_n 19) (<= main_i 64)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5374#(and (or (< 19 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 19) (<= main_i 68)))} is VALID [2019-02-27 12:56:00,785 INFO L273 TraceCheckUtils]: 34: Hoare triple {5374#(and (or (< 19 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 19) (<= main_i 68)))} assume i <= n * 4; {5374#(and (or (< 19 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 19) (<= main_i 68)))} is VALID [2019-02-27 12:56:00,786 INFO L273 TraceCheckUtils]: 35: Hoare triple {5374#(and (or (< 19 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 19) (<= main_i 68)))} assume a[i] != 23;i := i + 4; {5375#(and (or (<= main_n 19) (<= main_i 72)) (or (< 19 main_n) (<= 72 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:00,786 INFO L273 TraceCheckUtils]: 36: Hoare triple {5375#(and (or (<= main_n 19) (<= main_i 72)) (or (< 19 main_n) (<= 72 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5375#(and (or (<= main_n 19) (<= main_i 72)) (or (< 19 main_n) (<= 72 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:00,788 INFO L273 TraceCheckUtils]: 37: Hoare triple {5375#(and (or (<= main_n 19) (<= main_i 72)) (or (< 19 main_n) (<= 72 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5376#(and (or (= (* 4 main_n) main_i) (and (or (<= main_i 76) (<= main_n 19)) (or (< 19 main_n) (<= (* 4 main_n) main_i)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-02-27 12:56:00,789 INFO L273 TraceCheckUtils]: 38: Hoare triple {5376#(and (or (= (* 4 main_n) main_i) (and (or (<= main_i 76) (<= main_n 19)) (or (< 19 main_n) (<= (* 4 main_n) main_i)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume i <= n * 4; {5377#(and (or (= (* 4 main_n) main_i) (and (<= main_i 76) (< 19 main_n))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-02-27 12:56:00,790 INFO L273 TraceCheckUtils]: 39: Hoare triple {5377#(and (or (= (* 4 main_n) main_i) (and (<= main_i 76) (< 19 main_n))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume a[i] != 23;i := i + 4; {5378#(and (<= 20 main_n) (<= main_i 80))} is VALID [2019-02-27 12:56:00,790 INFO L273 TraceCheckUtils]: 40: Hoare triple {5378#(and (<= 20 main_n) (<= main_i 80))} assume !(i <= n * 4); {5356#false} is VALID [2019-02-27 12:56:00,799 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:56:00,799 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:56:00,799 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:56:00,799 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:56:00,799 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:56:00,799 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:56:00,799 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:56:00,811 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 12:56:00,811 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-27 12:56:00,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:56:00,824 WARN L254 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 45 conjunts are in the unsatisfiable core [2019-02-27 12:56:00,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:56:00,832 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:56:00,840 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:56:00,844 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:56:00,851 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:56:00,851 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:56:00,853 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:56:00,853 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_23]. (and (= main_i 0) (= (store v_main_a_23 (* 4 main_n) 23) main_a)) [2019-02-27 12:56:00,853 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:56:01,718 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:56:01,720 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:56:01,726 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:56:01,726 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:56:01,729 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:56:01,729 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 76 .cse0) (not (= (select main_a 76) 23)) (= 23 (select main_a .cse0)) (<= main_i 80))) [2019-02-27 12:56:01,729 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 76 .cse0) (not (= 76 .cse0)) (<= main_i 80))) [2019-02-27 12:56:01,756 INFO L273 TraceCheckUtils]: 0: Hoare triple {5355#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {5382#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,757 INFO L273 TraceCheckUtils]: 1: Hoare triple {5382#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5386#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:56:01,757 INFO L273 TraceCheckUtils]: 2: Hoare triple {5386#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {5386#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:56:01,758 INFO L273 TraceCheckUtils]: 3: Hoare triple {5386#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {5393#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,758 INFO L273 TraceCheckUtils]: 4: Hoare triple {5393#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5393#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,759 INFO L273 TraceCheckUtils]: 5: Hoare triple {5393#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5400#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:56:01,759 INFO L273 TraceCheckUtils]: 6: Hoare triple {5400#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {5400#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:56:01,760 INFO L273 TraceCheckUtils]: 7: Hoare triple {5400#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {5407#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,761 INFO L273 TraceCheckUtils]: 8: Hoare triple {5407#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5407#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,762 INFO L273 TraceCheckUtils]: 9: Hoare triple {5407#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5414#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,762 INFO L273 TraceCheckUtils]: 10: Hoare triple {5414#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5414#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,763 INFO L273 TraceCheckUtils]: 11: Hoare triple {5414#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5421#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,764 INFO L273 TraceCheckUtils]: 12: Hoare triple {5421#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5421#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,765 INFO L273 TraceCheckUtils]: 13: Hoare triple {5421#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5428#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,765 INFO L273 TraceCheckUtils]: 14: Hoare triple {5428#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5428#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,766 INFO L273 TraceCheckUtils]: 15: Hoare triple {5428#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5435#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,767 INFO L273 TraceCheckUtils]: 16: Hoare triple {5435#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5435#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,768 INFO L273 TraceCheckUtils]: 17: Hoare triple {5435#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5442#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,768 INFO L273 TraceCheckUtils]: 18: Hoare triple {5442#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5442#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,769 INFO L273 TraceCheckUtils]: 19: Hoare triple {5442#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5449#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,770 INFO L273 TraceCheckUtils]: 20: Hoare triple {5449#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5449#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,770 INFO L273 TraceCheckUtils]: 21: Hoare triple {5449#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5456#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,771 INFO L273 TraceCheckUtils]: 22: Hoare triple {5456#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5456#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,772 INFO L273 TraceCheckUtils]: 23: Hoare triple {5456#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5463#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,772 INFO L273 TraceCheckUtils]: 24: Hoare triple {5463#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5463#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,773 INFO L273 TraceCheckUtils]: 25: Hoare triple {5463#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5470#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,774 INFO L273 TraceCheckUtils]: 26: Hoare triple {5470#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5470#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,775 INFO L273 TraceCheckUtils]: 27: Hoare triple {5470#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5477#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,775 INFO L273 TraceCheckUtils]: 28: Hoare triple {5477#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5477#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,776 INFO L273 TraceCheckUtils]: 29: Hoare triple {5477#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5484#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,777 INFO L273 TraceCheckUtils]: 30: Hoare triple {5484#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5484#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,778 INFO L273 TraceCheckUtils]: 31: Hoare triple {5484#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5491#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,778 INFO L273 TraceCheckUtils]: 32: Hoare triple {5491#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5491#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,779 INFO L273 TraceCheckUtils]: 33: Hoare triple {5491#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5498#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,780 INFO L273 TraceCheckUtils]: 34: Hoare triple {5498#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5498#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,780 INFO L273 TraceCheckUtils]: 35: Hoare triple {5498#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5505#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,781 INFO L273 TraceCheckUtils]: 36: Hoare triple {5505#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5505#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,782 INFO L273 TraceCheckUtils]: 37: Hoare triple {5505#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5512#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,783 INFO L273 TraceCheckUtils]: 38: Hoare triple {5512#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5516#(and (= main_i 76) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:01,784 INFO L273 TraceCheckUtils]: 39: Hoare triple {5516#(and (= main_i 76) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5378#(and (<= 20 main_n) (<= main_i 80))} is VALID [2019-02-27 12:56:01,784 INFO L273 TraceCheckUtils]: 40: Hoare triple {5378#(and (<= 20 main_n) (<= main_i 80))} assume !(i <= n * 4); {5356#false} is VALID [2019-02-27 12:56:01,791 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:56:01,791 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:56:03,432 INFO L273 TraceCheckUtils]: 40: Hoare triple {5523#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {5356#false} is VALID [2019-02-27 12:56:03,433 INFO L273 TraceCheckUtils]: 39: Hoare triple {5527#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {5523#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:56:03,434 INFO L273 TraceCheckUtils]: 38: Hoare triple {5531#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {5527#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:56:03,435 INFO L273 TraceCheckUtils]: 37: Hoare triple {5535#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {5531#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:56:03,435 INFO L273 TraceCheckUtils]: 36: Hoare triple {5535#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {5535#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:56:03,437 INFO L273 TraceCheckUtils]: 35: Hoare triple {5542#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {5535#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:56:03,437 INFO L273 TraceCheckUtils]: 34: Hoare triple {5542#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {5542#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:56:03,438 INFO L273 TraceCheckUtils]: 33: Hoare triple {5549#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {5542#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:56:03,439 INFO L273 TraceCheckUtils]: 32: Hoare triple {5549#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {5549#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:56:03,440 INFO L273 TraceCheckUtils]: 31: Hoare triple {5556#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {5549#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:56:03,441 INFO L273 TraceCheckUtils]: 30: Hoare triple {5556#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {5556#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:56:03,442 INFO L273 TraceCheckUtils]: 29: Hoare triple {5563#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5556#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:56:03,442 INFO L273 TraceCheckUtils]: 28: Hoare triple {5563#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {5563#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:56:03,443 INFO L273 TraceCheckUtils]: 27: Hoare triple {5570#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {5563#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:56:03,444 INFO L273 TraceCheckUtils]: 26: Hoare triple {5570#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {5570#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:56:03,445 INFO L273 TraceCheckUtils]: 25: Hoare triple {5577#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5570#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:56:03,446 INFO L273 TraceCheckUtils]: 24: Hoare triple {5577#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {5577#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:56:03,447 INFO L273 TraceCheckUtils]: 23: Hoare triple {5584#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5577#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:56:03,447 INFO L273 TraceCheckUtils]: 22: Hoare triple {5584#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {5584#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:56:03,448 INFO L273 TraceCheckUtils]: 21: Hoare triple {5591#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5584#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:56:03,449 INFO L273 TraceCheckUtils]: 20: Hoare triple {5591#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {5591#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:56:03,450 INFO L273 TraceCheckUtils]: 19: Hoare triple {5598#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {5591#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:56:03,450 INFO L273 TraceCheckUtils]: 18: Hoare triple {5598#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {5598#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:56:03,452 INFO L273 TraceCheckUtils]: 17: Hoare triple {5605#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5598#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:56:03,452 INFO L273 TraceCheckUtils]: 16: Hoare triple {5605#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {5605#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:56:03,453 INFO L273 TraceCheckUtils]: 15: Hoare triple {5612#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5605#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:56:03,454 INFO L273 TraceCheckUtils]: 14: Hoare triple {5612#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {5612#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:56:03,455 INFO L273 TraceCheckUtils]: 13: Hoare triple {5619#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {5612#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:56:03,455 INFO L273 TraceCheckUtils]: 12: Hoare triple {5619#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {5619#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:56:03,457 INFO L273 TraceCheckUtils]: 11: Hoare triple {5626#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5619#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:56:03,457 INFO L273 TraceCheckUtils]: 10: Hoare triple {5626#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {5626#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:56:03,458 INFO L273 TraceCheckUtils]: 9: Hoare triple {5633#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {5626#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:56:03,459 INFO L273 TraceCheckUtils]: 8: Hoare triple {5633#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {5633#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:56:03,460 INFO L273 TraceCheckUtils]: 7: Hoare triple {5640#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {5633#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:56:03,460 INFO L273 TraceCheckUtils]: 6: Hoare triple {5640#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {5640#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:56:03,462 INFO L273 TraceCheckUtils]: 5: Hoare triple {5647#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {5640#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:56:03,462 INFO L273 TraceCheckUtils]: 4: Hoare triple {5647#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {5647#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:56:03,463 INFO L273 TraceCheckUtils]: 3: Hoare triple {5654#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {5647#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:56:03,464 INFO L273 TraceCheckUtils]: 2: Hoare triple {5654#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {5654#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:56:03,465 INFO L273 TraceCheckUtils]: 1: Hoare triple {5661#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {5654#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:56:03,466 INFO L273 TraceCheckUtils]: 0: Hoare triple {5355#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {5661#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:56:03,474 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:56:03,492 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:56:03,492 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 65 [2019-02-27 12:56:03,492 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:56:03,493 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 41 [2019-02-27 12:56:03,493 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:56:03,493 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 45 states. [2019-02-27 12:56:03,629 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 81 edges. 81 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:56:03,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 45 states [2019-02-27 12:56:03,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2019-02-27 12:56:03,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=602, Invalid=3820, Unknown=0, NotChecked=0, Total=4422 [2019-02-27 12:56:03,631 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand 45 states. [2019-02-27 12:56:07,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:56:07,055 INFO L93 Difference]: Finished difference Result 46 states and 46 transitions. [2019-02-27 12:56:07,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-02-27 12:56:07,056 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 41 [2019-02-27 12:56:07,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:56:07,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-02-27 12:56:07,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 46 transitions. [2019-02-27 12:56:07,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-02-27 12:56:07,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 46 transitions. [2019-02-27 12:56:07,058 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 24 states and 46 transitions. [2019-02-27 12:56:07,105 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 46 edges. 46 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:56:07,106 INFO L225 Difference]: With dead ends: 46 [2019-02-27 12:56:07,107 INFO L226 Difference]: Without dead ends: 45 [2019-02-27 12:56:07,107 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1008 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=602, Invalid=3820, Unknown=0, NotChecked=0, Total=4422 [2019-02-27 12:56:07,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-02-27 12:56:07,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44. [2019-02-27 12:56:07,172 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:56:07,172 INFO L82 GeneralOperation]: Start isEquivalent. First operand 45 states. Second operand 44 states. [2019-02-27 12:56:07,173 INFO L74 IsIncluded]: Start isIncluded. First operand 45 states. Second operand 44 states. [2019-02-27 12:56:07,173 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 44 states. [2019-02-27 12:56:07,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:56:07,173 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2019-02-27 12:56:07,173 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2019-02-27 12:56:07,174 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:56:07,174 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:56:07,174 INFO L74 IsIncluded]: Start isIncluded. First operand 44 states. Second operand 45 states. [2019-02-27 12:56:07,174 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 45 states. [2019-02-27 12:56:07,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:56:07,174 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2019-02-27 12:56:07,175 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2019-02-27 12:56:07,175 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:56:07,175 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:56:07,175 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:56:07,175 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:56:07,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-02-27 12:56:07,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2019-02-27 12:56:07,176 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 41 [2019-02-27 12:56:07,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:56:07,176 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2019-02-27 12:56:07,176 INFO L481 AbstractCegarLoop]: Interpolant automaton has 45 states. [2019-02-27 12:56:07,176 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2019-02-27 12:56:07,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-02-27 12:56:07,176 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:56:07,176 INFO L402 BasicCegarLoop]: trace histogram [21, 20, 1, 1] [2019-02-27 12:56:07,177 INFO L423 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:56:07,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:56:07,177 INFO L82 PathProgramCache]: Analyzing trace with hash 883071752, now seen corresponding path program 20 times [2019-02-27 12:56:07,177 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:56:07,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:56:07,178 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 12:56:07,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:56:07,178 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:56:07,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:56:08,365 INFO L273 TraceCheckUtils]: 0: Hoare triple {5887#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {5889#(and (or (<= main_i 0) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (< 20 main_n) (<= 0 main_i)))} is VALID [2019-02-27 12:56:08,366 INFO L273 TraceCheckUtils]: 1: Hoare triple {5889#(and (or (<= main_i 0) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (< 20 main_n) (<= 0 main_i)))} assume a[i] != 23;i := i + 4; {5890#(and (or (<= main_n 20) (<= main_i 4)) (or (< 20 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:08,367 INFO L273 TraceCheckUtils]: 2: Hoare triple {5890#(and (or (<= main_n 20) (<= main_i 4)) (or (< 20 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5890#(and (or (<= main_n 20) (<= main_i 4)) (or (< 20 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:08,368 INFO L273 TraceCheckUtils]: 3: Hoare triple {5890#(and (or (<= main_n 20) (<= main_i 4)) (or (< 20 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5891#(and (or (<= main_i 8) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (< 20 main_n) (<= 8 main_i)))} is VALID [2019-02-27 12:56:08,369 INFO L273 TraceCheckUtils]: 4: Hoare triple {5891#(and (or (<= main_i 8) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (< 20 main_n) (<= 8 main_i)))} assume i <= n * 4; {5891#(and (or (<= main_i 8) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (< 20 main_n) (<= 8 main_i)))} is VALID [2019-02-27 12:56:08,370 INFO L273 TraceCheckUtils]: 5: Hoare triple {5891#(and (or (<= main_i 8) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (< 20 main_n) (<= 8 main_i)))} assume a[i] != 23;i := i + 4; {5892#(and (or (<= main_n 20) (<= main_i 12)) (or (< 20 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:08,371 INFO L273 TraceCheckUtils]: 6: Hoare triple {5892#(and (or (<= main_n 20) (<= main_i 12)) (or (< 20 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5892#(and (or (<= main_n 20) (<= main_i 12)) (or (< 20 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:08,372 INFO L273 TraceCheckUtils]: 7: Hoare triple {5892#(and (or (<= main_n 20) (<= main_i 12)) (or (< 20 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5893#(and (or (< 20 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 20) (<= main_i 16)))} is VALID [2019-02-27 12:56:08,373 INFO L273 TraceCheckUtils]: 8: Hoare triple {5893#(and (or (< 20 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 20) (<= main_i 16)))} assume i <= n * 4; {5893#(and (or (< 20 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 20) (<= main_i 16)))} is VALID [2019-02-27 12:56:08,374 INFO L273 TraceCheckUtils]: 9: Hoare triple {5893#(and (or (< 20 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 20) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {5894#(and (or (<= main_i 20) (<= main_n 20)) (or (< 20 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:08,375 INFO L273 TraceCheckUtils]: 10: Hoare triple {5894#(and (or (<= main_i 20) (<= main_n 20)) (or (< 20 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5894#(and (or (<= main_i 20) (<= main_n 20)) (or (< 20 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:08,376 INFO L273 TraceCheckUtils]: 11: Hoare triple {5894#(and (or (<= main_i 20) (<= main_n 20)) (or (< 20 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5895#(and (or (< 20 main_n) (<= 24 main_i)) (or (<= main_i 24) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:08,377 INFO L273 TraceCheckUtils]: 12: Hoare triple {5895#(and (or (< 20 main_n) (<= 24 main_i)) (or (<= main_i 24) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5895#(and (or (< 20 main_n) (<= 24 main_i)) (or (<= main_i 24) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:08,378 INFO L273 TraceCheckUtils]: 13: Hoare triple {5895#(and (or (< 20 main_n) (<= 24 main_i)) (or (<= main_i 24) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5896#(and (or (< 20 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 20) (<= main_i 28)))} is VALID [2019-02-27 12:56:08,379 INFO L273 TraceCheckUtils]: 14: Hoare triple {5896#(and (or (< 20 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 20) (<= main_i 28)))} assume i <= n * 4; {5896#(and (or (< 20 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 20) (<= main_i 28)))} is VALID [2019-02-27 12:56:08,380 INFO L273 TraceCheckUtils]: 15: Hoare triple {5896#(and (or (< 20 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 20) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {5897#(and (or (< 20 main_n) (<= 32 main_i)) (or (<= main_i 32) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:08,381 INFO L273 TraceCheckUtils]: 16: Hoare triple {5897#(and (or (< 20 main_n) (<= 32 main_i)) (or (<= main_i 32) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5897#(and (or (< 20 main_n) (<= 32 main_i)) (or (<= main_i 32) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:08,382 INFO L273 TraceCheckUtils]: 17: Hoare triple {5897#(and (or (< 20 main_n) (<= 32 main_i)) (or (<= main_i 32) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5898#(and (or (< 20 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 20)))} is VALID [2019-02-27 12:56:08,383 INFO L273 TraceCheckUtils]: 18: Hoare triple {5898#(and (or (< 20 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 20)))} assume i <= n * 4; {5898#(and (or (< 20 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 20)))} is VALID [2019-02-27 12:56:08,384 INFO L273 TraceCheckUtils]: 19: Hoare triple {5898#(and (or (< 20 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 20)))} assume a[i] != 23;i := i + 4; {5899#(and (or (<= 40 main_i) (< 20 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 40) (<= main_n 20)))} is VALID [2019-02-27 12:56:08,384 INFO L273 TraceCheckUtils]: 20: Hoare triple {5899#(and (or (<= 40 main_i) (< 20 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 40) (<= main_n 20)))} assume i <= n * 4; {5899#(and (or (<= 40 main_i) (< 20 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 40) (<= main_n 20)))} is VALID [2019-02-27 12:56:08,386 INFO L273 TraceCheckUtils]: 21: Hoare triple {5899#(and (or (<= 40 main_i) (< 20 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 40) (<= main_n 20)))} assume a[i] != 23;i := i + 4; {5900#(and (or (< 20 main_n) (<= 44 main_i)) (or (<= main_n 20) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:08,386 INFO L273 TraceCheckUtils]: 22: Hoare triple {5900#(and (or (< 20 main_n) (<= 44 main_i)) (or (<= main_n 20) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5900#(and (or (< 20 main_n) (<= 44 main_i)) (or (<= main_n 20) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:08,388 INFO L273 TraceCheckUtils]: 23: Hoare triple {5900#(and (or (< 20 main_n) (<= 44 main_i)) (or (<= main_n 20) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5901#(and (or (< 20 main_n) (<= 48 main_i)) (or (<= main_n 20) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:08,388 INFO L273 TraceCheckUtils]: 24: Hoare triple {5901#(and (or (< 20 main_n) (<= 48 main_i)) (or (<= main_n 20) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5901#(and (or (< 20 main_n) (<= 48 main_i)) (or (<= main_n 20) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:08,389 INFO L273 TraceCheckUtils]: 25: Hoare triple {5901#(and (or (< 20 main_n) (<= 48 main_i)) (or (<= main_n 20) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5902#(and (or (<= main_i 52) (<= main_n 20)) (or (< 20 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:08,390 INFO L273 TraceCheckUtils]: 26: Hoare triple {5902#(and (or (<= main_i 52) (<= main_n 20)) (or (< 20 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5902#(and (or (<= main_i 52) (<= main_n 20)) (or (< 20 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:08,391 INFO L273 TraceCheckUtils]: 27: Hoare triple {5902#(and (or (<= main_i 52) (<= main_n 20)) (or (< 20 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5903#(and (or (<= main_i 56) (<= main_n 20)) (or (< 20 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:08,392 INFO L273 TraceCheckUtils]: 28: Hoare triple {5903#(and (or (<= main_i 56) (<= main_n 20)) (or (< 20 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5903#(and (or (<= main_i 56) (<= main_n 20)) (or (< 20 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:08,411 INFO L273 TraceCheckUtils]: 29: Hoare triple {5903#(and (or (<= main_i 56) (<= main_n 20)) (or (< 20 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5904#(and (or (<= main_i 60) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (< 20 main_n) (<= 60 main_i)))} is VALID [2019-02-27 12:56:08,412 INFO L273 TraceCheckUtils]: 30: Hoare triple {5904#(and (or (<= main_i 60) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (< 20 main_n) (<= 60 main_i)))} assume i <= n * 4; {5904#(and (or (<= main_i 60) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (< 20 main_n) (<= 60 main_i)))} is VALID [2019-02-27 12:56:08,412 INFO L273 TraceCheckUtils]: 31: Hoare triple {5904#(and (or (<= main_i 60) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (< 20 main_n) (<= 60 main_i)))} assume a[i] != 23;i := i + 4; {5905#(and (or (< 20 main_n) (<= 64 main_i)) (or (<= main_i 64) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:08,413 INFO L273 TraceCheckUtils]: 32: Hoare triple {5905#(and (or (< 20 main_n) (<= 64 main_i)) (or (<= main_i 64) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5905#(and (or (< 20 main_n) (<= 64 main_i)) (or (<= main_i 64) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:08,414 INFO L273 TraceCheckUtils]: 33: Hoare triple {5905#(and (or (< 20 main_n) (<= 64 main_i)) (or (<= main_i 64) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5906#(and (or (< 20 main_n) (<= 68 main_i)) (or (<= main_n 20) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:08,414 INFO L273 TraceCheckUtils]: 34: Hoare triple {5906#(and (or (< 20 main_n) (<= 68 main_i)) (or (<= main_n 20) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5906#(and (or (< 20 main_n) (<= 68 main_i)) (or (<= main_n 20) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:08,415 INFO L273 TraceCheckUtils]: 35: Hoare triple {5906#(and (or (< 20 main_n) (<= 68 main_i)) (or (<= main_n 20) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5907#(and (or (<= 72 main_i) (< 20 main_n)) (or (<= main_n 20) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:08,416 INFO L273 TraceCheckUtils]: 36: Hoare triple {5907#(and (or (<= 72 main_i) (< 20 main_n)) (or (<= main_n 20) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5907#(and (or (<= 72 main_i) (< 20 main_n)) (or (<= main_n 20) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:08,417 INFO L273 TraceCheckUtils]: 37: Hoare triple {5907#(and (or (<= 72 main_i) (< 20 main_n)) (or (<= main_n 20) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5908#(and (or (<= main_i 76) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 20 main_n)))} is VALID [2019-02-27 12:56:08,418 INFO L273 TraceCheckUtils]: 38: Hoare triple {5908#(and (or (<= main_i 76) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 20 main_n)))} assume i <= n * 4; {5908#(and (or (<= main_i 76) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 20 main_n)))} is VALID [2019-02-27 12:56:08,419 INFO L273 TraceCheckUtils]: 39: Hoare triple {5908#(and (or (<= main_i 76) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 20 main_n)))} assume a[i] != 23;i := i + 4; {5909#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 20) (<= main_i 80)) (or (< 20 main_n) (<= (* 4 main_n) main_i)))))} is VALID [2019-02-27 12:56:08,420 INFO L273 TraceCheckUtils]: 40: Hoare triple {5909#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 20) (<= main_i 80)) (or (< 20 main_n) (<= (* 4 main_n) main_i)))))} assume i <= n * 4; {5910#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 20 main_n) (<= main_i 80))))} is VALID [2019-02-27 12:56:08,421 INFO L273 TraceCheckUtils]: 41: Hoare triple {5910#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 20 main_n) (<= main_i 80))))} assume a[i] != 23;i := i + 4; {5911#(and (<= main_i 84) (<= 21 main_n))} is VALID [2019-02-27 12:56:08,422 INFO L273 TraceCheckUtils]: 42: Hoare triple {5911#(and (<= main_i 84) (<= 21 main_n))} assume !(i <= n * 4); {5888#false} is VALID [2019-02-27 12:56:08,431 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:56:08,431 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:56:08,432 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:56:08,432 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:56:08,432 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:56:08,432 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:56:08,432 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:56:08,441 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-27 12:56:08,441 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-27 12:56:08,467 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) [2019-02-27 12:56:08,467 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 12:56:08,468 WARN L254 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 47 conjunts are in the unsatisfiable core [2019-02-27 12:56:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:56:08,478 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:56:08,487 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:56:08,488 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:56:08,493 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:56:08,493 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:56:08,496 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:56:08,496 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_24]. (and (= main_a (store v_main_a_24 (* 4 main_n) 23)) (= main_i 0)) [2019-02-27 12:56:08,496 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:56:09,545 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:56:09,547 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:56:09,553 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:56:09,553 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:56:09,555 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:56:09,556 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 84) (not (= 23 (select main_a 80))) (= 23 (select main_a .cse0)) (<= 80 .cse0))) [2019-02-27 12:56:09,556 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 84) (not (= 80 .cse0)) (<= 80 .cse0))) [2019-02-27 12:56:09,584 INFO L273 TraceCheckUtils]: 0: Hoare triple {5887#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {5915#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,584 INFO L273 TraceCheckUtils]: 1: Hoare triple {5915#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5919#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:56:09,585 INFO L273 TraceCheckUtils]: 2: Hoare triple {5919#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {5919#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:56:09,585 INFO L273 TraceCheckUtils]: 3: Hoare triple {5919#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {5926#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,586 INFO L273 TraceCheckUtils]: 4: Hoare triple {5926#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5926#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,586 INFO L273 TraceCheckUtils]: 5: Hoare triple {5926#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5933#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:56:09,587 INFO L273 TraceCheckUtils]: 6: Hoare triple {5933#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {5933#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:56:09,588 INFO L273 TraceCheckUtils]: 7: Hoare triple {5933#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {5940#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,588 INFO L273 TraceCheckUtils]: 8: Hoare triple {5940#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5940#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,589 INFO L273 TraceCheckUtils]: 9: Hoare triple {5940#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5947#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,590 INFO L273 TraceCheckUtils]: 10: Hoare triple {5947#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5947#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,590 INFO L273 TraceCheckUtils]: 11: Hoare triple {5947#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5954#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,591 INFO L273 TraceCheckUtils]: 12: Hoare triple {5954#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5954#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,592 INFO L273 TraceCheckUtils]: 13: Hoare triple {5954#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5961#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,592 INFO L273 TraceCheckUtils]: 14: Hoare triple {5961#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5961#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,593 INFO L273 TraceCheckUtils]: 15: Hoare triple {5961#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5968#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,594 INFO L273 TraceCheckUtils]: 16: Hoare triple {5968#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5968#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,594 INFO L273 TraceCheckUtils]: 17: Hoare triple {5968#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5975#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,595 INFO L273 TraceCheckUtils]: 18: Hoare triple {5975#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5975#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,596 INFO L273 TraceCheckUtils]: 19: Hoare triple {5975#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5982#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,596 INFO L273 TraceCheckUtils]: 20: Hoare triple {5982#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5982#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,597 INFO L273 TraceCheckUtils]: 21: Hoare triple {5982#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5989#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,598 INFO L273 TraceCheckUtils]: 22: Hoare triple {5989#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5989#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,599 INFO L273 TraceCheckUtils]: 23: Hoare triple {5989#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5996#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,599 INFO L273 TraceCheckUtils]: 24: Hoare triple {5996#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5996#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,600 INFO L273 TraceCheckUtils]: 25: Hoare triple {5996#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6003#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,601 INFO L273 TraceCheckUtils]: 26: Hoare triple {6003#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6003#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,601 INFO L273 TraceCheckUtils]: 27: Hoare triple {6003#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6010#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,602 INFO L273 TraceCheckUtils]: 28: Hoare triple {6010#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6010#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,603 INFO L273 TraceCheckUtils]: 29: Hoare triple {6010#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6017#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,603 INFO L273 TraceCheckUtils]: 30: Hoare triple {6017#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6017#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,604 INFO L273 TraceCheckUtils]: 31: Hoare triple {6017#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6024#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,605 INFO L273 TraceCheckUtils]: 32: Hoare triple {6024#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6024#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,605 INFO L273 TraceCheckUtils]: 33: Hoare triple {6024#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6031#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,606 INFO L273 TraceCheckUtils]: 34: Hoare triple {6031#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6031#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,607 INFO L273 TraceCheckUtils]: 35: Hoare triple {6031#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6038#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,607 INFO L273 TraceCheckUtils]: 36: Hoare triple {6038#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6038#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,608 INFO L273 TraceCheckUtils]: 37: Hoare triple {6038#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6045#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,609 INFO L273 TraceCheckUtils]: 38: Hoare triple {6045#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6045#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:09,610 INFO L273 TraceCheckUtils]: 39: Hoare triple {6045#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6052#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:56:09,610 INFO L273 TraceCheckUtils]: 40: Hoare triple {6052#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {6056#(and (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:56:09,611 INFO L273 TraceCheckUtils]: 41: Hoare triple {6056#(and (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {5911#(and (<= main_i 84) (<= 21 main_n))} is VALID [2019-02-27 12:56:09,612 INFO L273 TraceCheckUtils]: 42: Hoare triple {5911#(and (<= main_i 84) (<= 21 main_n))} assume !(i <= n * 4); {5888#false} is VALID [2019-02-27 12:56:09,617 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:56:09,618 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:56:11,138 INFO L273 TraceCheckUtils]: 42: Hoare triple {6063#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {5888#false} is VALID [2019-02-27 12:56:11,139 INFO L273 TraceCheckUtils]: 41: Hoare triple {6067#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {6063#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:56:11,140 INFO L273 TraceCheckUtils]: 40: Hoare triple {6071#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {6067#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:56:11,141 INFO L273 TraceCheckUtils]: 39: Hoare triple {6075#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {6071#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:56:11,141 INFO L273 TraceCheckUtils]: 38: Hoare triple {6075#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {6075#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:56:11,142 INFO L273 TraceCheckUtils]: 37: Hoare triple {6082#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {6075#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:56:11,143 INFO L273 TraceCheckUtils]: 36: Hoare triple {6082#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {6082#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:56:11,144 INFO L273 TraceCheckUtils]: 35: Hoare triple {6089#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {6082#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:56:11,145 INFO L273 TraceCheckUtils]: 34: Hoare triple {6089#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {6089#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:56:11,146 INFO L273 TraceCheckUtils]: 33: Hoare triple {6096#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {6089#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:56:11,147 INFO L273 TraceCheckUtils]: 32: Hoare triple {6096#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {6096#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:56:11,148 INFO L273 TraceCheckUtils]: 31: Hoare triple {6103#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6096#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:56:11,149 INFO L273 TraceCheckUtils]: 30: Hoare triple {6103#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {6103#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:56:11,150 INFO L273 TraceCheckUtils]: 29: Hoare triple {6110#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {6103#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:56:11,150 INFO L273 TraceCheckUtils]: 28: Hoare triple {6110#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {6110#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:56:11,151 INFO L273 TraceCheckUtils]: 27: Hoare triple {6117#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6110#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:56:11,152 INFO L273 TraceCheckUtils]: 26: Hoare triple {6117#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {6117#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:56:11,153 INFO L273 TraceCheckUtils]: 25: Hoare triple {6124#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6117#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:56:11,153 INFO L273 TraceCheckUtils]: 24: Hoare triple {6124#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {6124#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:56:11,155 INFO L273 TraceCheckUtils]: 23: Hoare triple {6131#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6124#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:56:11,155 INFO L273 TraceCheckUtils]: 22: Hoare triple {6131#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {6131#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:56:11,156 INFO L273 TraceCheckUtils]: 21: Hoare triple {6138#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {6131#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:56:11,157 INFO L273 TraceCheckUtils]: 20: Hoare triple {6138#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {6138#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:56:11,158 INFO L273 TraceCheckUtils]: 19: Hoare triple {6145#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6138#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:56:11,158 INFO L273 TraceCheckUtils]: 18: Hoare triple {6145#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {6145#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:56:11,159 INFO L273 TraceCheckUtils]: 17: Hoare triple {6152#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6145#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:56:11,160 INFO L273 TraceCheckUtils]: 16: Hoare triple {6152#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {6152#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:56:11,161 INFO L273 TraceCheckUtils]: 15: Hoare triple {6159#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {6152#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:56:11,161 INFO L273 TraceCheckUtils]: 14: Hoare triple {6159#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {6159#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:56:11,163 INFO L273 TraceCheckUtils]: 13: Hoare triple {6166#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6159#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:56:11,163 INFO L273 TraceCheckUtils]: 12: Hoare triple {6166#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {6166#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:56:11,164 INFO L273 TraceCheckUtils]: 11: Hoare triple {6173#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {6166#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:56:11,165 INFO L273 TraceCheckUtils]: 10: Hoare triple {6173#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {6173#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:56:11,166 INFO L273 TraceCheckUtils]: 9: Hoare triple {6180#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {6173#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:56:11,166 INFO L273 TraceCheckUtils]: 8: Hoare triple {6180#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {6180#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:56:11,168 INFO L273 TraceCheckUtils]: 7: Hoare triple {6187#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {6180#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:56:11,168 INFO L273 TraceCheckUtils]: 6: Hoare triple {6187#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {6187#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:56:11,169 INFO L273 TraceCheckUtils]: 5: Hoare triple {6194#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {6187#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:56:11,170 INFO L273 TraceCheckUtils]: 4: Hoare triple {6194#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {6194#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:56:11,171 INFO L273 TraceCheckUtils]: 3: Hoare triple {6201#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {6194#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:56:11,171 INFO L273 TraceCheckUtils]: 2: Hoare triple {6201#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {6201#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:56:11,172 INFO L273 TraceCheckUtils]: 1: Hoare triple {6208#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {6201#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:56:11,173 INFO L273 TraceCheckUtils]: 0: Hoare triple {5887#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {6208#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 12:56:11,182 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:56:11,200 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:56:11,200 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 68 [2019-02-27 12:56:11,200 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:56:11,200 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 43 [2019-02-27 12:56:11,201 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:56:11,201 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 47 states. [2019-02-27 12:56:11,298 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 85 edges. 85 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:56:11,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 47 states [2019-02-27 12:56:11,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2019-02-27 12:56:11,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=652, Invalid=4178, Unknown=0, NotChecked=0, Total=4830 [2019-02-27 12:56:11,300 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand 47 states. [2019-02-27 12:56:13,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:56:13,949 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2019-02-27 12:56:13,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-02-27 12:56:13,949 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 43 [2019-02-27 12:56:13,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:56:13,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-02-27 12:56:13,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 48 transitions. [2019-02-27 12:56:13,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-02-27 12:56:13,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 48 transitions. [2019-02-27 12:56:13,951 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 25 states and 48 transitions. [2019-02-27 12:56:14,020 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 48 edges. 48 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:56:14,021 INFO L225 Difference]: With dead ends: 48 [2019-02-27 12:56:14,021 INFO L226 Difference]: Without dead ends: 47 [2019-02-27 12:56:14,022 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1100 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=652, Invalid=4178, Unknown=0, NotChecked=0, Total=4830 [2019-02-27 12:56:14,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-02-27 12:56:14,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2019-02-27 12:56:14,174 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:56:14,175 INFO L82 GeneralOperation]: Start isEquivalent. First operand 47 states. Second operand 46 states. [2019-02-27 12:56:14,175 INFO L74 IsIncluded]: Start isIncluded. First operand 47 states. Second operand 46 states. [2019-02-27 12:56:14,175 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 46 states. [2019-02-27 12:56:14,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:56:14,176 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2019-02-27 12:56:14,176 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2019-02-27 12:56:14,176 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:56:14,177 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:56:14,177 INFO L74 IsIncluded]: Start isIncluded. First operand 46 states. Second operand 47 states. [2019-02-27 12:56:14,177 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 47 states. [2019-02-27 12:56:14,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:56:14,177 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2019-02-27 12:56:14,177 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2019-02-27 12:56:14,178 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:56:14,178 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:56:14,178 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:56:14,178 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:56:14,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-02-27 12:56:14,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2019-02-27 12:56:14,179 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 43 [2019-02-27 12:56:14,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:56:14,179 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2019-02-27 12:56:14,179 INFO L481 AbstractCegarLoop]: Interpolant automaton has 47 states. [2019-02-27 12:56:14,179 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2019-02-27 12:56:14,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-02-27 12:56:14,179 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:56:14,179 INFO L402 BasicCegarLoop]: trace histogram [22, 21, 1, 1] [2019-02-27 12:56:14,180 INFO L423 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:56:14,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:56:14,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1771569846, now seen corresponding path program 21 times [2019-02-27 12:56:14,180 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:56:14,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:56:14,181 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 12:56:14,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:56:14,181 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:56:14,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:56:15,205 INFO L273 TraceCheckUtils]: 0: Hoare triple {6444#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {6446#(and (or (<= main_n 21) (<= main_i 0)) (or (<= 0 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:15,206 INFO L273 TraceCheckUtils]: 1: Hoare triple {6446#(and (or (<= main_n 21) (<= main_i 0)) (or (<= 0 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6447#(and (or (< 21 main_n) (<= 4 main_i)) (or (<= main_n 21) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:15,207 INFO L273 TraceCheckUtils]: 2: Hoare triple {6447#(and (or (< 21 main_n) (<= 4 main_i)) (or (<= main_n 21) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6447#(and (or (< 21 main_n) (<= 4 main_i)) (or (<= main_n 21) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:15,208 INFO L273 TraceCheckUtils]: 3: Hoare triple {6447#(and (or (< 21 main_n) (<= 4 main_i)) (or (<= main_n 21) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6448#(and (or (< 21 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 21)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:15,209 INFO L273 TraceCheckUtils]: 4: Hoare triple {6448#(and (or (< 21 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 21)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6448#(and (or (< 21 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 21)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:15,210 INFO L273 TraceCheckUtils]: 5: Hoare triple {6448#(and (or (< 21 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 21)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6449#(and (or (< 21 main_n) (<= 12 main_i)) (or (<= main_n 21) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:15,210 INFO L273 TraceCheckUtils]: 6: Hoare triple {6449#(and (or (< 21 main_n) (<= 12 main_i)) (or (<= main_n 21) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6449#(and (or (< 21 main_n) (<= 12 main_i)) (or (<= main_n 21) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:15,212 INFO L273 TraceCheckUtils]: 7: Hoare triple {6449#(and (or (< 21 main_n) (<= 12 main_i)) (or (<= main_n 21) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6450#(and (or (< 21 main_n) (<= 16 main_i)) (or (<= main_n 21) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:15,212 INFO L273 TraceCheckUtils]: 8: Hoare triple {6450#(and (or (< 21 main_n) (<= 16 main_i)) (or (<= main_n 21) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6450#(and (or (< 21 main_n) (<= 16 main_i)) (or (<= main_n 21) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:15,213 INFO L273 TraceCheckUtils]: 9: Hoare triple {6450#(and (or (< 21 main_n) (<= 16 main_i)) (or (<= main_n 21) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6451#(and (or (<= main_n 21) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 20 main_i)))} is VALID [2019-02-27 12:56:15,214 INFO L273 TraceCheckUtils]: 10: Hoare triple {6451#(and (or (<= main_n 21) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 20 main_i)))} assume i <= n * 4; {6451#(and (or (<= main_n 21) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 20 main_i)))} is VALID [2019-02-27 12:56:15,215 INFO L273 TraceCheckUtils]: 11: Hoare triple {6451#(and (or (<= main_n 21) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 20 main_i)))} assume a[i] != 23;i := i + 4; {6452#(and (or (< 21 main_n) (<= 24 main_i)) (or (<= main_n 21) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:15,216 INFO L273 TraceCheckUtils]: 12: Hoare triple {6452#(and (or (< 21 main_n) (<= 24 main_i)) (or (<= main_n 21) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6452#(and (or (< 21 main_n) (<= 24 main_i)) (or (<= main_n 21) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:15,217 INFO L273 TraceCheckUtils]: 13: Hoare triple {6452#(and (or (< 21 main_n) (<= 24 main_i)) (or (<= main_n 21) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6453#(and (or (<= 28 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 21) (<= main_i 28)))} is VALID [2019-02-27 12:56:15,218 INFO L273 TraceCheckUtils]: 14: Hoare triple {6453#(and (or (<= 28 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 21) (<= main_i 28)))} assume i <= n * 4; {6453#(and (or (<= 28 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 21) (<= main_i 28)))} is VALID [2019-02-27 12:56:15,219 INFO L273 TraceCheckUtils]: 15: Hoare triple {6453#(and (or (<= 28 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 21) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {6454#(and (= 23 (select main_a (* 4 main_n))) (or (<= 32 main_i) (< 21 main_n)) (or (<= main_i 32) (<= main_n 21)))} is VALID [2019-02-27 12:56:15,220 INFO L273 TraceCheckUtils]: 16: Hoare triple {6454#(and (= 23 (select main_a (* 4 main_n))) (or (<= 32 main_i) (< 21 main_n)) (or (<= main_i 32) (<= main_n 21)))} assume i <= n * 4; {6454#(and (= 23 (select main_a (* 4 main_n))) (or (<= 32 main_i) (< 21 main_n)) (or (<= main_i 32) (<= main_n 21)))} is VALID [2019-02-27 12:56:15,221 INFO L273 TraceCheckUtils]: 17: Hoare triple {6454#(and (= 23 (select main_a (* 4 main_n))) (or (<= 32 main_i) (< 21 main_n)) (or (<= main_i 32) (<= main_n 21)))} assume a[i] != 23;i := i + 4; {6455#(and (or (<= main_i 36) (<= main_n 21)) (or (< 21 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:15,221 INFO L273 TraceCheckUtils]: 18: Hoare triple {6455#(and (or (<= main_i 36) (<= main_n 21)) (or (< 21 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6455#(and (or (<= main_i 36) (<= main_n 21)) (or (< 21 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:15,223 INFO L273 TraceCheckUtils]: 19: Hoare triple {6455#(and (or (<= main_i 36) (<= main_n 21)) (or (< 21 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6456#(and (or (<= main_i 40) (<= main_n 21)) (or (<= 40 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:15,223 INFO L273 TraceCheckUtils]: 20: Hoare triple {6456#(and (or (<= main_i 40) (<= main_n 21)) (or (<= 40 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6456#(and (or (<= main_i 40) (<= main_n 21)) (or (<= 40 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:15,224 INFO L273 TraceCheckUtils]: 21: Hoare triple {6456#(and (or (<= main_i 40) (<= main_n 21)) (or (<= 40 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6457#(and (or (<= main_n 21) (<= main_i 44)) (or (<= 44 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:15,225 INFO L273 TraceCheckUtils]: 22: Hoare triple {6457#(and (or (<= main_n 21) (<= main_i 44)) (or (<= 44 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6457#(and (or (<= main_n 21) (<= main_i 44)) (or (<= 44 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:15,226 INFO L273 TraceCheckUtils]: 23: Hoare triple {6457#(and (or (<= main_n 21) (<= main_i 44)) (or (<= 44 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6458#(and (or (<= main_n 21) (<= main_i 48)) (or (<= 48 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:15,227 INFO L273 TraceCheckUtils]: 24: Hoare triple {6458#(and (or (<= main_n 21) (<= main_i 48)) (or (<= 48 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6458#(and (or (<= main_n 21) (<= main_i 48)) (or (<= 48 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:15,228 INFO L273 TraceCheckUtils]: 25: Hoare triple {6458#(and (or (<= main_n 21) (<= main_i 48)) (or (<= 48 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6459#(and (or (< 21 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 21)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:15,229 INFO L273 TraceCheckUtils]: 26: Hoare triple {6459#(and (or (< 21 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 21)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6459#(and (or (< 21 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 21)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:15,230 INFO L273 TraceCheckUtils]: 27: Hoare triple {6459#(and (or (< 21 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 21)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6460#(and (or (<= main_n 21) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 56 main_i)))} is VALID [2019-02-27 12:56:15,231 INFO L273 TraceCheckUtils]: 28: Hoare triple {6460#(and (or (<= main_n 21) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 56 main_i)))} assume i <= n * 4; {6460#(and (or (<= main_n 21) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 56 main_i)))} is VALID [2019-02-27 12:56:15,232 INFO L273 TraceCheckUtils]: 29: Hoare triple {6460#(and (or (<= main_n 21) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 56 main_i)))} assume a[i] != 23;i := i + 4; {6461#(and (or (< 21 main_n) (<= 60 main_i)) (or (<= main_n 21) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:15,233 INFO L273 TraceCheckUtils]: 30: Hoare triple {6461#(and (or (< 21 main_n) (<= 60 main_i)) (or (<= main_n 21) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6461#(and (or (< 21 main_n) (<= 60 main_i)) (or (<= main_n 21) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:15,234 INFO L273 TraceCheckUtils]: 31: Hoare triple {6461#(and (or (< 21 main_n) (<= 60 main_i)) (or (<= main_n 21) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6462#(and (or (<= main_i 64) (<= main_n 21)) (or (< 21 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:15,235 INFO L273 TraceCheckUtils]: 32: Hoare triple {6462#(and (or (<= main_i 64) (<= main_n 21)) (or (< 21 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6462#(and (or (<= main_i 64) (<= main_n 21)) (or (< 21 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:15,236 INFO L273 TraceCheckUtils]: 33: Hoare triple {6462#(and (or (<= main_i 64) (<= main_n 21)) (or (< 21 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6463#(and (or (< 21 main_n) (<= 68 main_i)) (or (<= main_n 21) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:15,236 INFO L273 TraceCheckUtils]: 34: Hoare triple {6463#(and (or (< 21 main_n) (<= 68 main_i)) (or (<= main_n 21) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6463#(and (or (< 21 main_n) (<= 68 main_i)) (or (<= main_n 21) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:15,237 INFO L273 TraceCheckUtils]: 35: Hoare triple {6463#(and (or (< 21 main_n) (<= 68 main_i)) (or (<= main_n 21) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6464#(and (or (<= main_n 21) (<= main_i 72)) (or (<= 72 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:15,238 INFO L273 TraceCheckUtils]: 36: Hoare triple {6464#(and (or (<= main_n 21) (<= main_i 72)) (or (<= 72 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6464#(and (or (<= main_n 21) (<= main_i 72)) (or (<= 72 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:15,239 INFO L273 TraceCheckUtils]: 37: Hoare triple {6464#(and (or (<= main_n 21) (<= main_i 72)) (or (<= 72 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6465#(and (or (<= main_i 76) (<= main_n 21)) (or (<= 76 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:15,240 INFO L273 TraceCheckUtils]: 38: Hoare triple {6465#(and (or (<= main_i 76) (<= main_n 21)) (or (<= 76 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6465#(and (or (<= main_i 76) (<= main_n 21)) (or (<= 76 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:15,241 INFO L273 TraceCheckUtils]: 39: Hoare triple {6465#(and (or (<= main_i 76) (<= main_n 21)) (or (<= 76 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6466#(and (or (<= main_n 21) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 80 main_i)))} is VALID [2019-02-27 12:56:15,242 INFO L273 TraceCheckUtils]: 40: Hoare triple {6466#(and (or (<= main_n 21) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 80 main_i)))} assume i <= n * 4; {6466#(and (or (<= main_n 21) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 80 main_i)))} is VALID [2019-02-27 12:56:15,243 INFO L273 TraceCheckUtils]: 41: Hoare triple {6466#(and (or (<= main_n 21) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 80 main_i)))} assume a[i] != 23;i := i + 4; {6467#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_i 84) (<= main_n 21)) (or (< 21 main_n) (<= (* 4 main_n) main_i)))))} is VALID [2019-02-27 12:56:15,244 INFO L273 TraceCheckUtils]: 42: Hoare triple {6467#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_i 84) (<= main_n 21)) (or (< 21 main_n) (<= (* 4 main_n) main_i)))))} assume i <= n * 4; {6468#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 84) (< 21 main_n))))} is VALID [2019-02-27 12:56:15,245 INFO L273 TraceCheckUtils]: 43: Hoare triple {6468#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 84) (< 21 main_n))))} assume a[i] != 23;i := i + 4; {6469#(and (<= main_i 88) (<= 22 main_n))} is VALID [2019-02-27 12:56:15,246 INFO L273 TraceCheckUtils]: 44: Hoare triple {6469#(and (<= main_i 88) (<= 22 main_n))} assume !(i <= n * 4); {6445#false} is VALID [2019-02-27 12:56:15,256 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 462 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:56:15,256 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:56:15,256 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:56:15,256 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:56:15,256 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:56:15,257 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:56:15,257 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:56:15,265 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-27 12:56:15,265 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-27 12:56:15,280 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-27 12:56:15,280 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 12:56:15,281 WARN L254 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 49 conjunts are in the unsatisfiable core [2019-02-27 12:56:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:56:15,290 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:56:15,298 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:56:15,299 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:56:15,310 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:56:15,310 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:56:15,321 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:56:15,321 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_25]. (and (= main_i 0) (= main_a (store v_main_a_25 (* 4 main_n) 23))) [2019-02-27 12:56:15,321 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:56:16,381 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:56:16,385 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:56:16,390 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:56:16,390 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:56:16,392 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:56:16,393 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 88) (not (= 23 (select main_a 84))) (= 23 (select main_a .cse0)) (<= 84 .cse0))) [2019-02-27 12:56:16,393 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 88) (not (= 84 .cse0)) (<= 84 .cse0))) [2019-02-27 12:56:16,423 INFO L273 TraceCheckUtils]: 0: Hoare triple {6444#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {6473#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,423 INFO L273 TraceCheckUtils]: 1: Hoare triple {6473#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6477#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:56:16,424 INFO L273 TraceCheckUtils]: 2: Hoare triple {6477#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {6477#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:56:16,424 INFO L273 TraceCheckUtils]: 3: Hoare triple {6477#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {6484#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,425 INFO L273 TraceCheckUtils]: 4: Hoare triple {6484#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6484#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,425 INFO L273 TraceCheckUtils]: 5: Hoare triple {6484#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6491#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:56:16,426 INFO L273 TraceCheckUtils]: 6: Hoare triple {6491#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {6491#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:56:16,426 INFO L273 TraceCheckUtils]: 7: Hoare triple {6491#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {6498#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,427 INFO L273 TraceCheckUtils]: 8: Hoare triple {6498#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6498#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,428 INFO L273 TraceCheckUtils]: 9: Hoare triple {6498#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6505#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,428 INFO L273 TraceCheckUtils]: 10: Hoare triple {6505#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6505#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,429 INFO L273 TraceCheckUtils]: 11: Hoare triple {6505#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6512#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,430 INFO L273 TraceCheckUtils]: 12: Hoare triple {6512#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6512#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,431 INFO L273 TraceCheckUtils]: 13: Hoare triple {6512#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6519#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,431 INFO L273 TraceCheckUtils]: 14: Hoare triple {6519#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6519#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,432 INFO L273 TraceCheckUtils]: 15: Hoare triple {6519#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6526#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,433 INFO L273 TraceCheckUtils]: 16: Hoare triple {6526#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6526#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,433 INFO L273 TraceCheckUtils]: 17: Hoare triple {6526#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6533#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,434 INFO L273 TraceCheckUtils]: 18: Hoare triple {6533#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6533#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,435 INFO L273 TraceCheckUtils]: 19: Hoare triple {6533#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6540#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,435 INFO L273 TraceCheckUtils]: 20: Hoare triple {6540#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6540#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,436 INFO L273 TraceCheckUtils]: 21: Hoare triple {6540#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6547#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,437 INFO L273 TraceCheckUtils]: 22: Hoare triple {6547#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6547#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,437 INFO L273 TraceCheckUtils]: 23: Hoare triple {6547#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6554#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,438 INFO L273 TraceCheckUtils]: 24: Hoare triple {6554#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6554#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,439 INFO L273 TraceCheckUtils]: 25: Hoare triple {6554#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6561#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,440 INFO L273 TraceCheckUtils]: 26: Hoare triple {6561#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6561#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,440 INFO L273 TraceCheckUtils]: 27: Hoare triple {6561#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6568#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,441 INFO L273 TraceCheckUtils]: 28: Hoare triple {6568#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6568#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,442 INFO L273 TraceCheckUtils]: 29: Hoare triple {6568#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6575#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,443 INFO L273 TraceCheckUtils]: 30: Hoare triple {6575#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6575#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,443 INFO L273 TraceCheckUtils]: 31: Hoare triple {6575#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6582#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,444 INFO L273 TraceCheckUtils]: 32: Hoare triple {6582#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6582#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,445 INFO L273 TraceCheckUtils]: 33: Hoare triple {6582#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6589#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,458 INFO L273 TraceCheckUtils]: 34: Hoare triple {6589#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6589#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,459 INFO L273 TraceCheckUtils]: 35: Hoare triple {6589#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6596#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,459 INFO L273 TraceCheckUtils]: 36: Hoare triple {6596#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6596#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,460 INFO L273 TraceCheckUtils]: 37: Hoare triple {6596#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6603#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,460 INFO L273 TraceCheckUtils]: 38: Hoare triple {6603#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6603#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,460 INFO L273 TraceCheckUtils]: 39: Hoare triple {6603#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6610#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:56:16,461 INFO L273 TraceCheckUtils]: 40: Hoare triple {6610#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {6610#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:56:16,461 INFO L273 TraceCheckUtils]: 41: Hoare triple {6610#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {6617#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,462 INFO L273 TraceCheckUtils]: 42: Hoare triple {6617#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6621#(and (= main_i 84) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:16,463 INFO L273 TraceCheckUtils]: 43: Hoare triple {6621#(and (= main_i 84) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6469#(and (<= main_i 88) (<= 22 main_n))} is VALID [2019-02-27 12:56:16,463 INFO L273 TraceCheckUtils]: 44: Hoare triple {6469#(and (<= main_i 88) (<= 22 main_n))} assume !(i <= n * 4); {6445#false} is VALID [2019-02-27 12:56:16,469 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 462 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:56:16,469 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:56:18,115 INFO L273 TraceCheckUtils]: 44: Hoare triple {6628#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {6445#false} is VALID [2019-02-27 12:56:18,117 INFO L273 TraceCheckUtils]: 43: Hoare triple {6632#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {6628#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:56:18,117 INFO L273 TraceCheckUtils]: 42: Hoare triple {6636#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {6632#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:56:18,119 INFO L273 TraceCheckUtils]: 41: Hoare triple {6640#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {6636#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:56:18,119 INFO L273 TraceCheckUtils]: 40: Hoare triple {6640#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {6640#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:56:18,121 INFO L273 TraceCheckUtils]: 39: Hoare triple {6647#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {6640#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:56:18,121 INFO L273 TraceCheckUtils]: 38: Hoare triple {6647#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {6647#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:56:18,123 INFO L273 TraceCheckUtils]: 37: Hoare triple {6654#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {6647#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:56:18,123 INFO L273 TraceCheckUtils]: 36: Hoare triple {6654#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {6654#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:56:18,125 INFO L273 TraceCheckUtils]: 35: Hoare triple {6661#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {6654#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:56:18,125 INFO L273 TraceCheckUtils]: 34: Hoare triple {6661#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {6661#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:56:18,127 INFO L273 TraceCheckUtils]: 33: Hoare triple {6668#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6661#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:56:18,127 INFO L273 TraceCheckUtils]: 32: Hoare triple {6668#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {6668#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:56:18,129 INFO L273 TraceCheckUtils]: 31: Hoare triple {6675#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {6668#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:56:18,129 INFO L273 TraceCheckUtils]: 30: Hoare triple {6675#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {6675#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:56:18,131 INFO L273 TraceCheckUtils]: 29: Hoare triple {6682#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6675#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:56:18,131 INFO L273 TraceCheckUtils]: 28: Hoare triple {6682#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {6682#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:56:18,134 INFO L273 TraceCheckUtils]: 27: Hoare triple {6689#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6682#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:56:18,134 INFO L273 TraceCheckUtils]: 26: Hoare triple {6689#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {6689#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:56:18,136 INFO L273 TraceCheckUtils]: 25: Hoare triple {6696#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6689#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:56:18,136 INFO L273 TraceCheckUtils]: 24: Hoare triple {6696#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {6696#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:56:18,139 INFO L273 TraceCheckUtils]: 23: Hoare triple {6703#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {6696#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:56:18,139 INFO L273 TraceCheckUtils]: 22: Hoare triple {6703#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {6703#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:56:18,141 INFO L273 TraceCheckUtils]: 21: Hoare triple {6710#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6703#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:56:18,141 INFO L273 TraceCheckUtils]: 20: Hoare triple {6710#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {6710#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:56:18,143 INFO L273 TraceCheckUtils]: 19: Hoare triple {6717#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6710#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:56:18,143 INFO L273 TraceCheckUtils]: 18: Hoare triple {6717#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {6717#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:56:18,145 INFO L273 TraceCheckUtils]: 17: Hoare triple {6724#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {6717#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:56:18,145 INFO L273 TraceCheckUtils]: 16: Hoare triple {6724#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {6724#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:56:18,147 INFO L273 TraceCheckUtils]: 15: Hoare triple {6731#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6724#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:56:18,147 INFO L273 TraceCheckUtils]: 14: Hoare triple {6731#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {6731#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:56:18,149 INFO L273 TraceCheckUtils]: 13: Hoare triple {6738#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {6731#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:56:18,149 INFO L273 TraceCheckUtils]: 12: Hoare triple {6738#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {6738#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:56:18,151 INFO L273 TraceCheckUtils]: 11: Hoare triple {6745#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {6738#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:56:18,151 INFO L273 TraceCheckUtils]: 10: Hoare triple {6745#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {6745#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:56:18,153 INFO L273 TraceCheckUtils]: 9: Hoare triple {6752#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {6745#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:56:18,153 INFO L273 TraceCheckUtils]: 8: Hoare triple {6752#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {6752#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:56:18,155 INFO L273 TraceCheckUtils]: 7: Hoare triple {6759#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {6752#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:56:18,155 INFO L273 TraceCheckUtils]: 6: Hoare triple {6759#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {6759#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:56:18,157 INFO L273 TraceCheckUtils]: 5: Hoare triple {6766#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {6759#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:56:18,157 INFO L273 TraceCheckUtils]: 4: Hoare triple {6766#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {6766#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:56:18,159 INFO L273 TraceCheckUtils]: 3: Hoare triple {6773#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {6766#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:56:18,159 INFO L273 TraceCheckUtils]: 2: Hoare triple {6773#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {6773#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 12:56:18,161 INFO L273 TraceCheckUtils]: 1: Hoare triple {6780#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6773#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 12:56:18,161 INFO L273 TraceCheckUtils]: 0: Hoare triple {6444#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {6780#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 12:56:18,169 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 462 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:56:18,188 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:56:18,188 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 71 [2019-02-27 12:56:18,188 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:56:18,188 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 45 [2019-02-27 12:56:18,188 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:56:18,189 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 49 states. [2019-02-27 12:56:18,336 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 89 edges. 89 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:56:18,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 49 states [2019-02-27 12:56:18,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2019-02-27 12:56:18,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=704, Invalid=4552, Unknown=0, NotChecked=0, Total=5256 [2019-02-27 12:56:18,337 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand 49 states. [2019-02-27 12:56:22,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:56:22,226 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2019-02-27 12:56:22,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-02-27 12:56:22,226 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 45 [2019-02-27 12:56:22,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:56:22,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-02-27 12:56:22,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 50 transitions. [2019-02-27 12:56:22,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-02-27 12:56:22,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 50 transitions. [2019-02-27 12:56:22,229 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 26 states and 50 transitions. [2019-02-27 12:56:22,314 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 50 edges. 50 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:56:22,315 INFO L225 Difference]: With dead ends: 50 [2019-02-27 12:56:22,315 INFO L226 Difference]: Without dead ends: 49 [2019-02-27 12:56:22,316 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1196 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=704, Invalid=4552, Unknown=0, NotChecked=0, Total=5256 [2019-02-27 12:56:22,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-02-27 12:56:22,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2019-02-27 12:56:22,358 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:56:22,358 INFO L82 GeneralOperation]: Start isEquivalent. First operand 49 states. Second operand 48 states. [2019-02-27 12:56:22,359 INFO L74 IsIncluded]: Start isIncluded. First operand 49 states. Second operand 48 states. [2019-02-27 12:56:22,359 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 48 states. [2019-02-27 12:56:22,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:56:22,360 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2019-02-27 12:56:22,360 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2019-02-27 12:56:22,360 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:56:22,360 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:56:22,361 INFO L74 IsIncluded]: Start isIncluded. First operand 48 states. Second operand 49 states. [2019-02-27 12:56:22,361 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 49 states. [2019-02-27 12:56:22,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:56:22,362 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2019-02-27 12:56:22,362 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2019-02-27 12:56:22,362 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:56:22,362 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:56:22,362 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:56:22,362 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:56:22,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-02-27 12:56:22,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2019-02-27 12:56:22,363 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 45 [2019-02-27 12:56:22,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:56:22,363 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2019-02-27 12:56:22,363 INFO L481 AbstractCegarLoop]: Interpolant automaton has 49 states. [2019-02-27 12:56:22,363 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2019-02-27 12:56:22,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-02-27 12:56:22,364 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:56:22,364 INFO L402 BasicCegarLoop]: trace histogram [23, 22, 1, 1] [2019-02-27 12:56:22,364 INFO L423 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:56:22,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:56:22,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1671571700, now seen corresponding path program 22 times [2019-02-27 12:56:22,365 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:56:22,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:56:22,365 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 12:56:22,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:56:22,365 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:56:22,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:56:23,618 INFO L273 TraceCheckUtils]: 0: Hoare triple {7026#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {7028#(and (or (<= main_i 0) (<= main_n 22)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-02-27 12:56:23,619 INFO L273 TraceCheckUtils]: 1: Hoare triple {7028#(and (or (<= main_i 0) (<= main_n 22)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume a[i] != 23;i := i + 4; {7029#(and (or (<= main_n 22) (<= main_i 4)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 22 main_n)))} is VALID [2019-02-27 12:56:23,620 INFO L273 TraceCheckUtils]: 2: Hoare triple {7029#(and (or (<= main_n 22) (<= main_i 4)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 22 main_n)))} assume i <= n * 4; {7029#(and (or (<= main_n 22) (<= main_i 4)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 22 main_n)))} is VALID [2019-02-27 12:56:23,621 INFO L273 TraceCheckUtils]: 3: Hoare triple {7029#(and (or (<= main_n 22) (<= main_i 4)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 22 main_n)))} assume a[i] != 23;i := i + 4; {7030#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 8) (<= main_n 22)))} is VALID [2019-02-27 12:56:23,622 INFO L273 TraceCheckUtils]: 4: Hoare triple {7030#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 8) (<= main_n 22)))} assume i <= n * 4; {7030#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 8) (<= main_n 22)))} is VALID [2019-02-27 12:56:23,623 INFO L273 TraceCheckUtils]: 5: Hoare triple {7030#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 8) (<= main_n 22)))} assume a[i] != 23;i := i + 4; {7031#(and (or (<= main_n 22) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-02-27 12:56:23,624 INFO L273 TraceCheckUtils]: 6: Hoare triple {7031#(and (or (<= main_n 22) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume i <= n * 4; {7031#(and (or (<= main_n 22) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-02-27 12:56:23,625 INFO L273 TraceCheckUtils]: 7: Hoare triple {7031#(and (or (<= main_n 22) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume a[i] != 23;i := i + 4; {7032#(and (or (<= main_n 22) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-02-27 12:56:23,626 INFO L273 TraceCheckUtils]: 8: Hoare triple {7032#(and (or (<= main_n 22) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume i <= n * 4; {7032#(and (or (<= main_n 22) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-02-27 12:56:23,627 INFO L273 TraceCheckUtils]: 9: Hoare triple {7032#(and (or (<= main_n 22) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume a[i] != 23;i := i + 4; {7033#(and (or (< 22 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 22)))} is VALID [2019-02-27 12:56:23,628 INFO L273 TraceCheckUtils]: 10: Hoare triple {7033#(and (or (< 22 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 22)))} assume i <= n * 4; {7033#(and (or (< 22 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 22)))} is VALID [2019-02-27 12:56:23,638 INFO L273 TraceCheckUtils]: 11: Hoare triple {7033#(and (or (< 22 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 22)))} assume a[i] != 23;i := i + 4; {7034#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 24) (<= main_n 22)))} is VALID [2019-02-27 12:56:23,638 INFO L273 TraceCheckUtils]: 12: Hoare triple {7034#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 24) (<= main_n 22)))} assume i <= n * 4; {7034#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 24) (<= main_n 22)))} is VALID [2019-02-27 12:56:23,639 INFO L273 TraceCheckUtils]: 13: Hoare triple {7034#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 24) (<= main_n 22)))} assume a[i] != 23;i := i + 4; {7035#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 28)))} is VALID [2019-02-27 12:56:23,640 INFO L273 TraceCheckUtils]: 14: Hoare triple {7035#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 28)))} assume i <= n * 4; {7035#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 28)))} is VALID [2019-02-27 12:56:23,641 INFO L273 TraceCheckUtils]: 15: Hoare triple {7035#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {7036#(and (or (<= main_i 32) (<= main_n 22)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-02-27 12:56:23,642 INFO L273 TraceCheckUtils]: 16: Hoare triple {7036#(and (or (<= main_i 32) (<= main_n 22)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume i <= n * 4; {7036#(and (or (<= main_i 32) (<= main_n 22)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-02-27 12:56:23,643 INFO L273 TraceCheckUtils]: 17: Hoare triple {7036#(and (or (<= main_i 32) (<= main_n 22)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume a[i] != 23;i := i + 4; {7037#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 22 main_n)) (or (<= main_i 36) (<= main_n 22)))} is VALID [2019-02-27 12:56:23,644 INFO L273 TraceCheckUtils]: 18: Hoare triple {7037#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 22 main_n)) (or (<= main_i 36) (<= main_n 22)))} assume i <= n * 4; {7037#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 22 main_n)) (or (<= main_i 36) (<= main_n 22)))} is VALID [2019-02-27 12:56:23,645 INFO L273 TraceCheckUtils]: 19: Hoare triple {7037#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 22 main_n)) (or (<= main_i 36) (<= main_n 22)))} assume a[i] != 23;i := i + 4; {7038#(and (or (<= main_i 40) (<= main_n 22)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-02-27 12:56:23,646 INFO L273 TraceCheckUtils]: 20: Hoare triple {7038#(and (or (<= main_i 40) (<= main_n 22)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume i <= n * 4; {7038#(and (or (<= main_i 40) (<= main_n 22)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-02-27 12:56:23,647 INFO L273 TraceCheckUtils]: 21: Hoare triple {7038#(and (or (<= main_i 40) (<= main_n 22)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume a[i] != 23;i := i + 4; {7039#(and (or (<= main_n 22) (<= main_i 44)) (or (< 22 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:56:23,648 INFO L273 TraceCheckUtils]: 22: Hoare triple {7039#(and (or (<= main_n 22) (<= main_i 44)) (or (< 22 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {7039#(and (or (<= main_n 22) (<= main_i 44)) (or (< 22 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:56:23,649 INFO L273 TraceCheckUtils]: 23: Hoare triple {7039#(and (or (<= main_n 22) (<= main_i 44)) (or (< 22 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {7040#(and (or (<= main_n 22) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-02-27 12:56:23,650 INFO L273 TraceCheckUtils]: 24: Hoare triple {7040#(and (or (<= main_n 22) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume i <= n * 4; {7040#(and (or (<= main_n 22) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-02-27 12:56:23,651 INFO L273 TraceCheckUtils]: 25: Hoare triple {7040#(and (or (<= main_n 22) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume a[i] != 23;i := i + 4; {7041#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 52) (<= main_n 22)))} is VALID [2019-02-27 12:56:23,651 INFO L273 TraceCheckUtils]: 26: Hoare triple {7041#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 52) (<= main_n 22)))} assume i <= n * 4; {7041#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 52) (<= main_n 22)))} is VALID [2019-02-27 12:56:23,653 INFO L273 TraceCheckUtils]: 27: Hoare triple {7041#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 52) (<= main_n 22)))} assume a[i] != 23;i := i + 4; {7042#(and (or (<= main_i 56) (<= main_n 22)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-02-27 12:56:23,653 INFO L273 TraceCheckUtils]: 28: Hoare triple {7042#(and (or (<= main_i 56) (<= main_n 22)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume i <= n * 4; {7042#(and (or (<= main_i 56) (<= main_n 22)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-02-27 12:56:23,655 INFO L273 TraceCheckUtils]: 29: Hoare triple {7042#(and (or (<= main_i 56) (<= main_n 22)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume a[i] != 23;i := i + 4; {7043#(and (or (< 22 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 22)))} is VALID [2019-02-27 12:56:23,655 INFO L273 TraceCheckUtils]: 30: Hoare triple {7043#(and (or (< 22 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 22)))} assume i <= n * 4; {7043#(and (or (< 22 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 22)))} is VALID [2019-02-27 12:56:23,656 INFO L273 TraceCheckUtils]: 31: Hoare triple {7043#(and (or (< 22 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 22)))} assume a[i] != 23;i := i + 4; {7044#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 64) (<= main_n 22)))} is VALID [2019-02-27 12:56:23,657 INFO L273 TraceCheckUtils]: 32: Hoare triple {7044#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 64) (<= main_n 22)))} assume i <= n * 4; {7044#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 64) (<= main_n 22)))} is VALID [2019-02-27 12:56:23,658 INFO L273 TraceCheckUtils]: 33: Hoare triple {7044#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 64) (<= main_n 22)))} assume a[i] != 23;i := i + 4; {7045#(and (or (<= main_n 22) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-02-27 12:56:23,659 INFO L273 TraceCheckUtils]: 34: Hoare triple {7045#(and (or (<= main_n 22) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume i <= n * 4; {7045#(and (or (<= main_n 22) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-02-27 12:56:23,660 INFO L273 TraceCheckUtils]: 35: Hoare triple {7045#(and (or (<= main_n 22) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume a[i] != 23;i := i + 4; {7046#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 72)))} is VALID [2019-02-27 12:56:23,661 INFO L273 TraceCheckUtils]: 36: Hoare triple {7046#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 72)))} assume i <= n * 4; {7046#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 72)))} is VALID [2019-02-27 12:56:23,662 INFO L273 TraceCheckUtils]: 37: Hoare triple {7046#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 72)))} assume a[i] != 23;i := i + 4; {7047#(and (or (<= main_i 76) (<= main_n 22)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-02-27 12:56:23,663 INFO L273 TraceCheckUtils]: 38: Hoare triple {7047#(and (or (<= main_i 76) (<= main_n 22)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume i <= n * 4; {7047#(and (or (<= main_i 76) (<= main_n 22)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2019-02-27 12:56:23,664 INFO L273 TraceCheckUtils]: 39: Hoare triple {7047#(and (or (<= main_i 76) (<= main_n 22)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume a[i] != 23;i := i + 4; {7048#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 80)))} is VALID [2019-02-27 12:56:23,665 INFO L273 TraceCheckUtils]: 40: Hoare triple {7048#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 80)))} assume i <= n * 4; {7048#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 80)))} is VALID [2019-02-27 12:56:23,666 INFO L273 TraceCheckUtils]: 41: Hoare triple {7048#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 80)))} assume a[i] != 23;i := i + 4; {7049#(and (or (<= main_i 84) (<= main_n 22)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 22 main_n)))} is VALID [2019-02-27 12:56:23,666 INFO L273 TraceCheckUtils]: 42: Hoare triple {7049#(and (or (<= main_i 84) (<= main_n 22)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 22 main_n)))} assume i <= n * 4; {7049#(and (or (<= main_i 84) (<= main_n 22)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 22 main_n)))} is VALID [2019-02-27 12:56:23,668 INFO L273 TraceCheckUtils]: 43: Hoare triple {7049#(and (or (<= main_i 84) (<= main_n 22)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 22 main_n)))} assume a[i] != 23;i := i + 4; {7050#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 22 main_n)) (or (<= main_i 88) (<= main_n 22)))} is VALID [2019-02-27 12:56:23,669 INFO L273 TraceCheckUtils]: 44: Hoare triple {7050#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 22 main_n)) (or (<= main_i 88) (<= main_n 22)))} assume i <= n * 4; {7051#(and (<= main_i 88) (or (< 22 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} is VALID [2019-02-27 12:56:23,670 INFO L273 TraceCheckUtils]: 45: Hoare triple {7051#(and (<= main_i 88) (or (< 22 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} assume a[i] != 23;i := i + 4; {7052#(and (<= main_i 92) (< 22 main_n))} is VALID [2019-02-27 12:56:23,670 INFO L273 TraceCheckUtils]: 46: Hoare triple {7052#(and (<= main_i 92) (< 22 main_n))} assume !(i <= n * 4); {7027#false} is VALID [2019-02-27 12:56:23,682 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:56:23,682 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:56:23,682 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:56:23,683 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:56:23,683 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:56:23,683 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:56:23,683 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:56:23,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 12:56:23,690 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-27 12:56:23,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:56:23,705 WARN L254 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 51 conjunts are in the unsatisfiable core [2019-02-27 12:56:23,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:56:23,712 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:56:23,729 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:56:23,737 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:56:23,749 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:56:23,749 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:56:23,751 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:56:23,752 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_26]. (and (= main_a (store v_main_a_26 (* 4 main_n) 23)) (= main_i 0)) [2019-02-27 12:56:23,752 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:56:24,772 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:56:24,775 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:56:24,779 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:56:24,779 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:56:24,782 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:56:24,782 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 92) (not (= (select main_a 88) 23)) (= 23 (select main_a .cse0)) (<= 88 .cse0))) [2019-02-27 12:56:24,782 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 92) (not (= 88 .cse0)) (<= 88 .cse0))) [2019-02-27 12:56:24,814 INFO L273 TraceCheckUtils]: 0: Hoare triple {7026#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {7056#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,815 INFO L273 TraceCheckUtils]: 1: Hoare triple {7056#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7060#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:56:24,815 INFO L273 TraceCheckUtils]: 2: Hoare triple {7060#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {7060#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:56:24,816 INFO L273 TraceCheckUtils]: 3: Hoare triple {7060#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {7067#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,816 INFO L273 TraceCheckUtils]: 4: Hoare triple {7067#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7067#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,817 INFO L273 TraceCheckUtils]: 5: Hoare triple {7067#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7074#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:56:24,818 INFO L273 TraceCheckUtils]: 6: Hoare triple {7074#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {7074#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:56:24,818 INFO L273 TraceCheckUtils]: 7: Hoare triple {7074#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {7081#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,819 INFO L273 TraceCheckUtils]: 8: Hoare triple {7081#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7081#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,820 INFO L273 TraceCheckUtils]: 9: Hoare triple {7081#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7088#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,821 INFO L273 TraceCheckUtils]: 10: Hoare triple {7088#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7088#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,821 INFO L273 TraceCheckUtils]: 11: Hoare triple {7088#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7095#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,822 INFO L273 TraceCheckUtils]: 12: Hoare triple {7095#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7095#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,823 INFO L273 TraceCheckUtils]: 13: Hoare triple {7095#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7102#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,823 INFO L273 TraceCheckUtils]: 14: Hoare triple {7102#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7102#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,824 INFO L273 TraceCheckUtils]: 15: Hoare triple {7102#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7109#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,825 INFO L273 TraceCheckUtils]: 16: Hoare triple {7109#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7109#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,826 INFO L273 TraceCheckUtils]: 17: Hoare triple {7109#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7116#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,826 INFO L273 TraceCheckUtils]: 18: Hoare triple {7116#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7116#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,827 INFO L273 TraceCheckUtils]: 19: Hoare triple {7116#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7123#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,828 INFO L273 TraceCheckUtils]: 20: Hoare triple {7123#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7123#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,828 INFO L273 TraceCheckUtils]: 21: Hoare triple {7123#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7130#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,829 INFO L273 TraceCheckUtils]: 22: Hoare triple {7130#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7130#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,830 INFO L273 TraceCheckUtils]: 23: Hoare triple {7130#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7137#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,830 INFO L273 TraceCheckUtils]: 24: Hoare triple {7137#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7137#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,831 INFO L273 TraceCheckUtils]: 25: Hoare triple {7137#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7144#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,832 INFO L273 TraceCheckUtils]: 26: Hoare triple {7144#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7144#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,832 INFO L273 TraceCheckUtils]: 27: Hoare triple {7144#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7151#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,833 INFO L273 TraceCheckUtils]: 28: Hoare triple {7151#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7151#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,834 INFO L273 TraceCheckUtils]: 29: Hoare triple {7151#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7158#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,834 INFO L273 TraceCheckUtils]: 30: Hoare triple {7158#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7158#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,835 INFO L273 TraceCheckUtils]: 31: Hoare triple {7158#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7165#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,836 INFO L273 TraceCheckUtils]: 32: Hoare triple {7165#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7165#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,836 INFO L273 TraceCheckUtils]: 33: Hoare triple {7165#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7172#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,837 INFO L273 TraceCheckUtils]: 34: Hoare triple {7172#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7172#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,838 INFO L273 TraceCheckUtils]: 35: Hoare triple {7172#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7179#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,839 INFO L273 TraceCheckUtils]: 36: Hoare triple {7179#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7179#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,839 INFO L273 TraceCheckUtils]: 37: Hoare triple {7179#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7186#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,840 INFO L273 TraceCheckUtils]: 38: Hoare triple {7186#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7186#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,841 INFO L273 TraceCheckUtils]: 39: Hoare triple {7186#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7193#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:56:24,841 INFO L273 TraceCheckUtils]: 40: Hoare triple {7193#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {7193#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:56:24,842 INFO L273 TraceCheckUtils]: 41: Hoare triple {7193#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {7200#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,843 INFO L273 TraceCheckUtils]: 42: Hoare triple {7200#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7200#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,843 INFO L273 TraceCheckUtils]: 43: Hoare triple {7200#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7207#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,844 INFO L273 TraceCheckUtils]: 44: Hoare triple {7207#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7211#(and (<= main_i (* 4 main_n)) (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:24,845 INFO L273 TraceCheckUtils]: 45: Hoare triple {7211#(and (<= main_i (* 4 main_n)) (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7052#(and (<= main_i 92) (< 22 main_n))} is VALID [2019-02-27 12:56:24,846 INFO L273 TraceCheckUtils]: 46: Hoare triple {7052#(and (<= main_i 92) (< 22 main_n))} assume !(i <= n * 4); {7027#false} is VALID [2019-02-27 12:56:24,853 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:56:24,853 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:56:26,615 INFO L273 TraceCheckUtils]: 46: Hoare triple {7218#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {7027#false} is VALID [2019-02-27 12:56:26,616 INFO L273 TraceCheckUtils]: 45: Hoare triple {7222#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {7218#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:56:26,616 INFO L273 TraceCheckUtils]: 44: Hoare triple {7226#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {7222#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:56:26,617 INFO L273 TraceCheckUtils]: 43: Hoare triple {7230#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {7226#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:56:26,617 INFO L273 TraceCheckUtils]: 42: Hoare triple {7230#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {7230#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:56:26,618 INFO L273 TraceCheckUtils]: 41: Hoare triple {7237#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {7230#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:56:26,618 INFO L273 TraceCheckUtils]: 40: Hoare triple {7237#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {7237#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:56:26,619 INFO L273 TraceCheckUtils]: 39: Hoare triple {7244#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {7237#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:56:26,620 INFO L273 TraceCheckUtils]: 38: Hoare triple {7244#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {7244#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:56:26,621 INFO L273 TraceCheckUtils]: 37: Hoare triple {7251#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {7244#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:56:26,621 INFO L273 TraceCheckUtils]: 36: Hoare triple {7251#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {7251#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:56:26,622 INFO L273 TraceCheckUtils]: 35: Hoare triple {7258#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7251#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:56:26,623 INFO L273 TraceCheckUtils]: 34: Hoare triple {7258#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {7258#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:56:26,624 INFO L273 TraceCheckUtils]: 33: Hoare triple {7265#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {7258#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:56:26,624 INFO L273 TraceCheckUtils]: 32: Hoare triple {7265#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {7265#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:56:26,625 INFO L273 TraceCheckUtils]: 31: Hoare triple {7272#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7265#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:56:26,626 INFO L273 TraceCheckUtils]: 30: Hoare triple {7272#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {7272#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:56:26,627 INFO L273 TraceCheckUtils]: 29: Hoare triple {7279#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7272#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:56:26,628 INFO L273 TraceCheckUtils]: 28: Hoare triple {7279#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {7279#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:56:26,629 INFO L273 TraceCheckUtils]: 27: Hoare triple {7286#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7279#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:56:26,629 INFO L273 TraceCheckUtils]: 26: Hoare triple {7286#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {7286#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:56:26,630 INFO L273 TraceCheckUtils]: 25: Hoare triple {7293#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {7286#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:56:26,631 INFO L273 TraceCheckUtils]: 24: Hoare triple {7293#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {7293#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:56:26,632 INFO L273 TraceCheckUtils]: 23: Hoare triple {7300#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7293#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:56:26,632 INFO L273 TraceCheckUtils]: 22: Hoare triple {7300#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {7300#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:56:26,633 INFO L273 TraceCheckUtils]: 21: Hoare triple {7307#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7300#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:56:26,634 INFO L273 TraceCheckUtils]: 20: Hoare triple {7307#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {7307#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:56:26,635 INFO L273 TraceCheckUtils]: 19: Hoare triple {7314#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {7307#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:56:26,636 INFO L273 TraceCheckUtils]: 18: Hoare triple {7314#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {7314#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:56:26,637 INFO L273 TraceCheckUtils]: 17: Hoare triple {7321#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7314#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:56:26,637 INFO L273 TraceCheckUtils]: 16: Hoare triple {7321#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {7321#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:56:26,638 INFO L273 TraceCheckUtils]: 15: Hoare triple {7328#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {7321#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:56:26,639 INFO L273 TraceCheckUtils]: 14: Hoare triple {7328#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {7328#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:56:26,640 INFO L273 TraceCheckUtils]: 13: Hoare triple {7335#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {7328#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:56:26,640 INFO L273 TraceCheckUtils]: 12: Hoare triple {7335#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {7335#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:56:26,641 INFO L273 TraceCheckUtils]: 11: Hoare triple {7342#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {7335#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:56:26,642 INFO L273 TraceCheckUtils]: 10: Hoare triple {7342#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {7342#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:56:26,643 INFO L273 TraceCheckUtils]: 9: Hoare triple {7349#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {7342#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:56:26,643 INFO L273 TraceCheckUtils]: 8: Hoare triple {7349#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {7349#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:56:26,644 INFO L273 TraceCheckUtils]: 7: Hoare triple {7356#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {7349#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:56:26,645 INFO L273 TraceCheckUtils]: 6: Hoare triple {7356#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {7356#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:56:26,646 INFO L273 TraceCheckUtils]: 5: Hoare triple {7363#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {7356#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:56:26,647 INFO L273 TraceCheckUtils]: 4: Hoare triple {7363#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {7363#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 12:56:26,648 INFO L273 TraceCheckUtils]: 3: Hoare triple {7370#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7363#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 12:56:26,648 INFO L273 TraceCheckUtils]: 2: Hoare triple {7370#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {7370#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 12:56:26,649 INFO L273 TraceCheckUtils]: 1: Hoare triple {7377#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7370#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 12:56:26,650 INFO L273 TraceCheckUtils]: 0: Hoare triple {7026#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {7377#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 12:56:26,660 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:56:26,678 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:56:26,678 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 74 [2019-02-27 12:56:26,679 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:56:26,679 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 47 [2019-02-27 12:56:26,679 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:56:26,679 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 51 states. [2019-02-27 12:56:26,787 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 93 edges. 93 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:56:26,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 51 states [2019-02-27 12:56:26,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2019-02-27 12:56:26,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=758, Invalid=4942, Unknown=0, NotChecked=0, Total=5700 [2019-02-27 12:56:26,788 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand 51 states. [2019-02-27 12:56:30,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:56:30,706 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2019-02-27 12:56:30,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-02-27 12:56:30,706 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 47 [2019-02-27 12:56:30,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:56:30,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-02-27 12:56:30,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 52 transitions. [2019-02-27 12:56:30,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-02-27 12:56:30,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 52 transitions. [2019-02-27 12:56:30,708 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 27 states and 52 transitions. [2019-02-27 12:56:30,766 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 52 edges. 52 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:56:30,767 INFO L225 Difference]: With dead ends: 52 [2019-02-27 12:56:30,767 INFO L226 Difference]: Without dead ends: 51 [2019-02-27 12:56:30,768 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1296 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=758, Invalid=4942, Unknown=0, NotChecked=0, Total=5700 [2019-02-27 12:56:30,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-02-27 12:56:30,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2019-02-27 12:56:30,823 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:56:30,823 INFO L82 GeneralOperation]: Start isEquivalent. First operand 51 states. Second operand 50 states. [2019-02-27 12:56:30,824 INFO L74 IsIncluded]: Start isIncluded. First operand 51 states. Second operand 50 states. [2019-02-27 12:56:30,824 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 50 states. [2019-02-27 12:56:30,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:56:30,825 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2019-02-27 12:56:30,825 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2019-02-27 12:56:30,825 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:56:30,826 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:56:30,826 INFO L74 IsIncluded]: Start isIncluded. First operand 50 states. Second operand 51 states. [2019-02-27 12:56:30,826 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 51 states. [2019-02-27 12:56:30,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:56:30,827 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2019-02-27 12:56:30,827 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2019-02-27 12:56:30,827 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:56:30,827 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:56:30,827 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:56:30,827 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:56:30,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-02-27 12:56:30,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2019-02-27 12:56:30,828 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 47 [2019-02-27 12:56:30,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:56:30,828 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2019-02-27 12:56:30,828 INFO L481 AbstractCegarLoop]: Interpolant automaton has 51 states. [2019-02-27 12:56:30,828 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2019-02-27 12:56:30,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-02-27 12:56:30,828 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:56:30,829 INFO L402 BasicCegarLoop]: trace histogram [24, 23, 1, 1] [2019-02-27 12:56:30,829 INFO L423 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:56:30,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:56:30,829 INFO L82 PathProgramCache]: Analyzing trace with hash -62633906, now seen corresponding path program 23 times [2019-02-27 12:56:30,829 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:56:30,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:56:30,830 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 12:56:30,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:56:30,830 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:56:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:56:31,243 WARN L181 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2019-02-27 12:56:31,700 WARN L181 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2019-02-27 12:56:32,186 WARN L181 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2019-02-27 12:56:33,222 INFO L273 TraceCheckUtils]: 0: Hoare triple {7633#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {7635#(and (or (<= 0 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:33,223 INFO L273 TraceCheckUtils]: 1: Hoare triple {7635#(and (or (<= 0 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7636#(and (or (<= main_n 23) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))) (or (< 23 main_n) (<= 4 main_i)))} is VALID [2019-02-27 12:56:33,224 INFO L273 TraceCheckUtils]: 2: Hoare triple {7636#(and (or (<= main_n 23) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))) (or (< 23 main_n) (<= 4 main_i)))} assume i <= n * 4; {7636#(and (or (<= main_n 23) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))) (or (< 23 main_n) (<= 4 main_i)))} is VALID [2019-02-27 12:56:33,224 INFO L273 TraceCheckUtils]: 3: Hoare triple {7636#(and (or (<= main_n 23) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))) (or (< 23 main_n) (<= 4 main_i)))} assume a[i] != 23;i := i + 4; {7637#(and (or (<= 8 main_i) (< 23 main_n)) (or (<= main_i 8) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:33,225 INFO L273 TraceCheckUtils]: 4: Hoare triple {7637#(and (or (<= 8 main_i) (< 23 main_n)) (or (<= main_i 8) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7637#(and (or (<= 8 main_i) (< 23 main_n)) (or (<= main_i 8) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:33,225 INFO L273 TraceCheckUtils]: 5: Hoare triple {7637#(and (or (<= 8 main_i) (< 23 main_n)) (or (<= main_i 8) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7638#(and (or (<= main_n 23) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))) (or (<= 12 main_i) (< 23 main_n)))} is VALID [2019-02-27 12:56:33,226 INFO L273 TraceCheckUtils]: 6: Hoare triple {7638#(and (or (<= main_n 23) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))) (or (<= 12 main_i) (< 23 main_n)))} assume i <= n * 4; {7638#(and (or (<= main_n 23) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))) (or (<= 12 main_i) (< 23 main_n)))} is VALID [2019-02-27 12:56:33,227 INFO L273 TraceCheckUtils]: 7: Hoare triple {7638#(and (or (<= main_n 23) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))) (or (<= 12 main_i) (< 23 main_n)))} assume a[i] != 23;i := i + 4; {7639#(and (or (<= main_n 23) (<= main_i 16)) (or (<= 16 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:33,227 INFO L273 TraceCheckUtils]: 8: Hoare triple {7639#(and (or (<= main_n 23) (<= main_i 16)) (or (<= 16 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7639#(and (or (<= main_n 23) (<= main_i 16)) (or (<= 16 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:33,228 INFO L273 TraceCheckUtils]: 9: Hoare triple {7639#(and (or (<= main_n 23) (<= main_i 16)) (or (<= 16 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7640#(and (or (<= main_n 23) (<= main_i 20)) (or (<= 20 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:33,229 INFO L273 TraceCheckUtils]: 10: Hoare triple {7640#(and (or (<= main_n 23) (<= main_i 20)) (or (<= 20 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7640#(and (or (<= main_n 23) (<= main_i 20)) (or (<= 20 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:33,230 INFO L273 TraceCheckUtils]: 11: Hoare triple {7640#(and (or (<= main_n 23) (<= main_i 20)) (or (<= 20 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7641#(and (or (<= 24 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:33,231 INFO L273 TraceCheckUtils]: 12: Hoare triple {7641#(and (or (<= 24 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7641#(and (or (<= 24 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:33,232 INFO L273 TraceCheckUtils]: 13: Hoare triple {7641#(and (or (<= 24 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7642#(and (or (<= 28 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 23) (<= main_i 28)))} is VALID [2019-02-27 12:56:33,233 INFO L273 TraceCheckUtils]: 14: Hoare triple {7642#(and (or (<= 28 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 23) (<= main_i 28)))} assume i <= n * 4; {7642#(and (or (<= 28 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 23) (<= main_i 28)))} is VALID [2019-02-27 12:56:33,234 INFO L273 TraceCheckUtils]: 15: Hoare triple {7642#(and (or (<= 28 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 23) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {7643#(and (or (<= 32 main_i) (< 23 main_n)) (or (<= main_i 32) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:33,234 INFO L273 TraceCheckUtils]: 16: Hoare triple {7643#(and (or (<= 32 main_i) (< 23 main_n)) (or (<= main_i 32) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7643#(and (or (<= 32 main_i) (< 23 main_n)) (or (<= main_i 32) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:33,235 INFO L273 TraceCheckUtils]: 17: Hoare triple {7643#(and (or (<= 32 main_i) (< 23 main_n)) (or (<= main_i 32) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7644#(and (or (<= main_i 36) (<= main_n 23)) (or (< 23 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:33,236 INFO L273 TraceCheckUtils]: 18: Hoare triple {7644#(and (or (<= main_i 36) (<= main_n 23)) (or (< 23 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7644#(and (or (<= main_i 36) (<= main_n 23)) (or (< 23 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:33,237 INFO L273 TraceCheckUtils]: 19: Hoare triple {7644#(and (or (<= main_i 36) (<= main_n 23)) (or (< 23 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7645#(and (or (<= main_i 40) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 23 main_n)))} is VALID [2019-02-27 12:56:33,238 INFO L273 TraceCheckUtils]: 20: Hoare triple {7645#(and (or (<= main_i 40) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 23 main_n)))} assume i <= n * 4; {7645#(and (or (<= main_i 40) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 23 main_n)))} is VALID [2019-02-27 12:56:33,239 INFO L273 TraceCheckUtils]: 21: Hoare triple {7645#(and (or (<= main_i 40) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 23 main_n)))} assume a[i] != 23;i := i + 4; {7646#(and (or (<= main_n 23) (<= main_i 44)) (or (<= 44 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:33,240 INFO L273 TraceCheckUtils]: 22: Hoare triple {7646#(and (or (<= main_n 23) (<= main_i 44)) (or (<= 44 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7646#(and (or (<= main_n 23) (<= main_i 44)) (or (<= 44 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:33,241 INFO L273 TraceCheckUtils]: 23: Hoare triple {7646#(and (or (<= main_n 23) (<= main_i 44)) (or (<= 44 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7647#(and (or (<= 48 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:33,242 INFO L273 TraceCheckUtils]: 24: Hoare triple {7647#(and (or (<= 48 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7647#(and (or (<= 48 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:33,243 INFO L273 TraceCheckUtils]: 25: Hoare triple {7647#(and (or (<= 48 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7648#(and (or (<= 52 main_i) (< 23 main_n)) (or (<= main_i 52) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:33,243 INFO L273 TraceCheckUtils]: 26: Hoare triple {7648#(and (or (<= 52 main_i) (< 23 main_n)) (or (<= main_i 52) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7648#(and (or (<= 52 main_i) (< 23 main_n)) (or (<= main_i 52) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:33,245 INFO L273 TraceCheckUtils]: 27: Hoare triple {7648#(and (or (<= 52 main_i) (< 23 main_n)) (or (<= main_i 52) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7649#(and (or (<= 56 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:33,245 INFO L273 TraceCheckUtils]: 28: Hoare triple {7649#(and (or (<= 56 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7649#(and (or (<= 56 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:33,246 INFO L273 TraceCheckUtils]: 29: Hoare triple {7649#(and (or (<= 56 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7650#(and (or (<= 60 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:33,247 INFO L273 TraceCheckUtils]: 30: Hoare triple {7650#(and (or (<= 60 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7650#(and (or (<= 60 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:33,248 INFO L273 TraceCheckUtils]: 31: Hoare triple {7650#(and (or (<= 60 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7651#(and (or (<= main_i 64) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))) (or (<= 64 main_i) (< 23 main_n)))} is VALID [2019-02-27 12:56:33,249 INFO L273 TraceCheckUtils]: 32: Hoare triple {7651#(and (or (<= main_i 64) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))) (or (<= 64 main_i) (< 23 main_n)))} assume i <= n * 4; {7651#(and (or (<= main_i 64) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))) (or (<= 64 main_i) (< 23 main_n)))} is VALID [2019-02-27 12:56:33,250 INFO L273 TraceCheckUtils]: 33: Hoare triple {7651#(and (or (<= main_i 64) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))) (or (<= 64 main_i) (< 23 main_n)))} assume a[i] != 23;i := i + 4; {7652#(and (or (<= 68 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:33,251 INFO L273 TraceCheckUtils]: 34: Hoare triple {7652#(and (or (<= 68 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7652#(and (or (<= 68 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:33,252 INFO L273 TraceCheckUtils]: 35: Hoare triple {7652#(and (or (<= 68 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7653#(and (or (<= 72 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:33,253 INFO L273 TraceCheckUtils]: 36: Hoare triple {7653#(and (or (<= 72 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7653#(and (or (<= 72 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:33,254 INFO L273 TraceCheckUtils]: 37: Hoare triple {7653#(and (or (<= 72 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7654#(and (or (<= 76 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 23)))} is VALID [2019-02-27 12:56:33,255 INFO L273 TraceCheckUtils]: 38: Hoare triple {7654#(and (or (<= 76 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 23)))} assume i <= n * 4; {7654#(and (or (<= 76 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 23)))} is VALID [2019-02-27 12:56:33,256 INFO L273 TraceCheckUtils]: 39: Hoare triple {7654#(and (or (<= 76 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 23)))} assume a[i] != 23;i := i + 4; {7655#(and (or (<= main_n 23) (<= main_i 80)) (or (<= 80 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:33,256 INFO L273 TraceCheckUtils]: 40: Hoare triple {7655#(and (or (<= main_n 23) (<= main_i 80)) (or (<= 80 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7655#(and (or (<= main_n 23) (<= main_i 80)) (or (<= 80 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:33,257 INFO L273 TraceCheckUtils]: 41: Hoare triple {7655#(and (or (<= main_n 23) (<= main_i 80)) (or (<= 80 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7656#(and (or (< 23 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 23)))} is VALID [2019-02-27 12:56:33,258 INFO L273 TraceCheckUtils]: 42: Hoare triple {7656#(and (or (< 23 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 23)))} assume i <= n * 4; {7656#(and (or (< 23 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 23)))} is VALID [2019-02-27 12:56:33,259 INFO L273 TraceCheckUtils]: 43: Hoare triple {7656#(and (or (< 23 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 23)))} assume a[i] != 23;i := i + 4; {7657#(and (or (<= 88 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 23)))} is VALID [2019-02-27 12:56:33,260 INFO L273 TraceCheckUtils]: 44: Hoare triple {7657#(and (or (<= 88 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 23)))} assume i <= n * 4; {7657#(and (or (<= 88 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 23)))} is VALID [2019-02-27 12:56:33,261 INFO L273 TraceCheckUtils]: 45: Hoare triple {7657#(and (or (<= 88 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 23)))} assume a[i] != 23;i := i + 4; {7658#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= (* 4 main_n) main_i) (< 23 main_n)) (or (<= main_i 92) (<= main_n 23)))))} is VALID [2019-02-27 12:56:33,262 INFO L273 TraceCheckUtils]: 46: Hoare triple {7658#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= (* 4 main_n) main_i) (< 23 main_n)) (or (<= main_i 92) (<= main_n 23)))))} assume i <= n * 4; {7659#(and (or (= (* 4 main_n) main_i) (and (<= main_i 92) (< 23 main_n))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-02-27 12:56:33,263 INFO L273 TraceCheckUtils]: 47: Hoare triple {7659#(and (or (= (* 4 main_n) main_i) (and (<= main_i 92) (< 23 main_n))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume a[i] != 23;i := i + 4; {7660#(and (<= main_i 96) (< 23 main_n))} is VALID [2019-02-27 12:56:33,264 INFO L273 TraceCheckUtils]: 48: Hoare triple {7660#(and (<= main_i 96) (< 23 main_n))} assume !(i <= n * 4); {7634#false} is VALID [2019-02-27 12:56:33,276 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 552 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:56:33,277 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:56:33,277 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:56:33,277 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:56:33,277 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:56:33,277 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:56:33,277 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:56:33,286 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-27 12:56:33,286 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-27 12:56:33,315 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 24 check-sat command(s) [2019-02-27 12:56:33,316 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 12:56:33,317 WARN L254 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 53 conjunts are in the unsatisfiable core [2019-02-27 12:56:33,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:56:33,323 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:56:33,331 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:56:33,334 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:56:33,341 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:56:33,341 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:56:33,343 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:56:33,343 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_27]. (and (= (store v_main_a_27 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-27 12:56:33,343 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:56:34,680 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:56:34,682 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:56:34,688 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:56:34,688 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:56:34,691 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:56:34,691 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 96) (not (= 23 (select main_a 92))) (<= 92 .cse0) (= 23 (select main_a .cse0)))) [2019-02-27 12:56:34,691 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 96) (not (= 92 .cse0)) (<= 92 .cse0))) [2019-02-27 12:56:34,722 INFO L273 TraceCheckUtils]: 0: Hoare triple {7633#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {7664#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,723 INFO L273 TraceCheckUtils]: 1: Hoare triple {7664#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7668#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:56:34,724 INFO L273 TraceCheckUtils]: 2: Hoare triple {7668#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {7668#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:56:34,725 INFO L273 TraceCheckUtils]: 3: Hoare triple {7668#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {7675#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,725 INFO L273 TraceCheckUtils]: 4: Hoare triple {7675#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7675#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,726 INFO L273 TraceCheckUtils]: 5: Hoare triple {7675#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7682#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:56:34,727 INFO L273 TraceCheckUtils]: 6: Hoare triple {7682#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {7682#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:56:34,728 INFO L273 TraceCheckUtils]: 7: Hoare triple {7682#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {7689#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,728 INFO L273 TraceCheckUtils]: 8: Hoare triple {7689#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7689#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,729 INFO L273 TraceCheckUtils]: 9: Hoare triple {7689#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7696#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,730 INFO L273 TraceCheckUtils]: 10: Hoare triple {7696#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7696#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,730 INFO L273 TraceCheckUtils]: 11: Hoare triple {7696#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7703#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,731 INFO L273 TraceCheckUtils]: 12: Hoare triple {7703#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7703#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,732 INFO L273 TraceCheckUtils]: 13: Hoare triple {7703#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7710#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,732 INFO L273 TraceCheckUtils]: 14: Hoare triple {7710#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7710#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,733 INFO L273 TraceCheckUtils]: 15: Hoare triple {7710#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7717#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,734 INFO L273 TraceCheckUtils]: 16: Hoare triple {7717#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7717#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,735 INFO L273 TraceCheckUtils]: 17: Hoare triple {7717#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7724#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,735 INFO L273 TraceCheckUtils]: 18: Hoare triple {7724#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7724#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,736 INFO L273 TraceCheckUtils]: 19: Hoare triple {7724#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7731#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,737 INFO L273 TraceCheckUtils]: 20: Hoare triple {7731#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7731#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,737 INFO L273 TraceCheckUtils]: 21: Hoare triple {7731#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7738#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,738 INFO L273 TraceCheckUtils]: 22: Hoare triple {7738#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7738#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,739 INFO L273 TraceCheckUtils]: 23: Hoare triple {7738#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7745#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,740 INFO L273 TraceCheckUtils]: 24: Hoare triple {7745#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7745#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,740 INFO L273 TraceCheckUtils]: 25: Hoare triple {7745#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7752#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,741 INFO L273 TraceCheckUtils]: 26: Hoare triple {7752#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7752#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,742 INFO L273 TraceCheckUtils]: 27: Hoare triple {7752#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7759#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,743 INFO L273 TraceCheckUtils]: 28: Hoare triple {7759#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7759#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,743 INFO L273 TraceCheckUtils]: 29: Hoare triple {7759#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7766#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,744 INFO L273 TraceCheckUtils]: 30: Hoare triple {7766#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7766#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,745 INFO L273 TraceCheckUtils]: 31: Hoare triple {7766#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7773#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,745 INFO L273 TraceCheckUtils]: 32: Hoare triple {7773#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7773#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,746 INFO L273 TraceCheckUtils]: 33: Hoare triple {7773#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7780#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,747 INFO L273 TraceCheckUtils]: 34: Hoare triple {7780#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7780#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,748 INFO L273 TraceCheckUtils]: 35: Hoare triple {7780#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7787#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,748 INFO L273 TraceCheckUtils]: 36: Hoare triple {7787#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7787#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,749 INFO L273 TraceCheckUtils]: 37: Hoare triple {7787#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7794#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,750 INFO L273 TraceCheckUtils]: 38: Hoare triple {7794#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7794#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,750 INFO L273 TraceCheckUtils]: 39: Hoare triple {7794#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7801#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:56:34,751 INFO L273 TraceCheckUtils]: 40: Hoare triple {7801#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {7801#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:56:34,752 INFO L273 TraceCheckUtils]: 41: Hoare triple {7801#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {7808#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,753 INFO L273 TraceCheckUtils]: 42: Hoare triple {7808#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7808#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,753 INFO L273 TraceCheckUtils]: 43: Hoare triple {7808#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7815#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,754 INFO L273 TraceCheckUtils]: 44: Hoare triple {7815#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7815#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,755 INFO L273 TraceCheckUtils]: 45: Hoare triple {7815#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7822#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,755 INFO L273 TraceCheckUtils]: 46: Hoare triple {7822#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7826#(and (= main_i 92) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:34,756 INFO L273 TraceCheckUtils]: 47: Hoare triple {7826#(and (= main_i 92) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7660#(and (<= main_i 96) (< 23 main_n))} is VALID [2019-02-27 12:56:34,757 INFO L273 TraceCheckUtils]: 48: Hoare triple {7660#(and (<= main_i 96) (< 23 main_n))} assume !(i <= n * 4); {7634#false} is VALID [2019-02-27 12:56:34,764 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 552 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:56:34,764 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:56:36,608 INFO L273 TraceCheckUtils]: 48: Hoare triple {7833#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {7634#false} is VALID [2019-02-27 12:56:36,609 INFO L273 TraceCheckUtils]: 47: Hoare triple {7837#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {7833#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:56:36,610 INFO L273 TraceCheckUtils]: 46: Hoare triple {7841#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {7837#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:56:36,610 INFO L273 TraceCheckUtils]: 45: Hoare triple {7845#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {7841#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:56:36,611 INFO L273 TraceCheckUtils]: 44: Hoare triple {7845#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {7845#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:56:36,612 INFO L273 TraceCheckUtils]: 43: Hoare triple {7852#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {7845#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:56:36,612 INFO L273 TraceCheckUtils]: 42: Hoare triple {7852#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {7852#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:56:36,613 INFO L273 TraceCheckUtils]: 41: Hoare triple {7859#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {7852#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:56:36,614 INFO L273 TraceCheckUtils]: 40: Hoare triple {7859#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {7859#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:56:36,615 INFO L273 TraceCheckUtils]: 39: Hoare triple {7866#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {7859#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:56:36,615 INFO L273 TraceCheckUtils]: 38: Hoare triple {7866#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {7866#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:56:36,616 INFO L273 TraceCheckUtils]: 37: Hoare triple {7873#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7866#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:56:36,617 INFO L273 TraceCheckUtils]: 36: Hoare triple {7873#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {7873#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:56:36,618 INFO L273 TraceCheckUtils]: 35: Hoare triple {7880#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {7873#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:56:36,619 INFO L273 TraceCheckUtils]: 34: Hoare triple {7880#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {7880#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:56:36,620 INFO L273 TraceCheckUtils]: 33: Hoare triple {7887#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7880#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:56:36,620 INFO L273 TraceCheckUtils]: 32: Hoare triple {7887#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {7887#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:56:36,621 INFO L273 TraceCheckUtils]: 31: Hoare triple {7894#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7887#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:56:36,622 INFO L273 TraceCheckUtils]: 30: Hoare triple {7894#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {7894#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:56:36,623 INFO L273 TraceCheckUtils]: 29: Hoare triple {7901#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7894#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:56:36,623 INFO L273 TraceCheckUtils]: 28: Hoare triple {7901#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {7901#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:56:36,625 INFO L273 TraceCheckUtils]: 27: Hoare triple {7908#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {7901#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:56:36,625 INFO L273 TraceCheckUtils]: 26: Hoare triple {7908#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {7908#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:56:36,626 INFO L273 TraceCheckUtils]: 25: Hoare triple {7915#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7908#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:56:36,627 INFO L273 TraceCheckUtils]: 24: Hoare triple {7915#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {7915#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:56:36,628 INFO L273 TraceCheckUtils]: 23: Hoare triple {7922#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7915#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:56:36,628 INFO L273 TraceCheckUtils]: 22: Hoare triple {7922#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {7922#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:56:36,629 INFO L273 TraceCheckUtils]: 21: Hoare triple {7929#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {7922#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:56:36,630 INFO L273 TraceCheckUtils]: 20: Hoare triple {7929#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {7929#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:56:36,631 INFO L273 TraceCheckUtils]: 19: Hoare triple {7936#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7929#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:56:36,631 INFO L273 TraceCheckUtils]: 18: Hoare triple {7936#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {7936#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:56:36,633 INFO L273 TraceCheckUtils]: 17: Hoare triple {7943#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {7936#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:56:36,633 INFO L273 TraceCheckUtils]: 16: Hoare triple {7943#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {7943#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:56:36,634 INFO L273 TraceCheckUtils]: 15: Hoare triple {7950#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {7943#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:56:36,635 INFO L273 TraceCheckUtils]: 14: Hoare triple {7950#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {7950#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:56:36,636 INFO L273 TraceCheckUtils]: 13: Hoare triple {7957#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {7950#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:56:36,636 INFO L273 TraceCheckUtils]: 12: Hoare triple {7957#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {7957#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:56:36,637 INFO L273 TraceCheckUtils]: 11: Hoare triple {7964#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {7957#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:56:36,638 INFO L273 TraceCheckUtils]: 10: Hoare triple {7964#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {7964#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:56:36,639 INFO L273 TraceCheckUtils]: 9: Hoare triple {7971#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {7964#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:56:36,640 INFO L273 TraceCheckUtils]: 8: Hoare triple {7971#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {7971#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:56:36,641 INFO L273 TraceCheckUtils]: 7: Hoare triple {7978#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {7971#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:56:36,641 INFO L273 TraceCheckUtils]: 6: Hoare triple {7978#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {7978#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 12:56:36,642 INFO L273 TraceCheckUtils]: 5: Hoare triple {7985#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7978#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 12:56:36,643 INFO L273 TraceCheckUtils]: 4: Hoare triple {7985#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {7985#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 12:56:36,644 INFO L273 TraceCheckUtils]: 3: Hoare triple {7992#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7985#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 12:56:36,644 INFO L273 TraceCheckUtils]: 2: Hoare triple {7992#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {7992#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 12:56:36,645 INFO L273 TraceCheckUtils]: 1: Hoare triple {7999#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7992#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 12:56:36,646 INFO L273 TraceCheckUtils]: 0: Hoare triple {7633#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {7999#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 12:56:36,664 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 552 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:56:36,683 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:56:36,683 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26, 26] total 77 [2019-02-27 12:56:36,684 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:56:36,684 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 49 [2019-02-27 12:56:36,684 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:56:36,685 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 53 states. [2019-02-27 12:56:36,796 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 97 edges. 97 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:56:36,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 53 states [2019-02-27 12:56:36,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2019-02-27 12:56:36,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=814, Invalid=5348, Unknown=0, NotChecked=0, Total=6162 [2019-02-27 12:56:36,798 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand 53 states. [2019-02-27 12:56:41,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:56:41,455 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2019-02-27 12:56:41,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-02-27 12:56:41,455 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 49 [2019-02-27 12:56:41,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:56:41,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-02-27 12:56:41,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 54 transitions. [2019-02-27 12:56:41,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-02-27 12:56:41,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 54 transitions. [2019-02-27 12:56:41,457 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 28 states and 54 transitions. [2019-02-27 12:56:41,517 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 54 edges. 54 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:56:41,518 INFO L225 Difference]: With dead ends: 54 [2019-02-27 12:56:41,518 INFO L226 Difference]: Without dead ends: 53 [2019-02-27 12:56:41,519 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1400 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=814, Invalid=5348, Unknown=0, NotChecked=0, Total=6162 [2019-02-27 12:56:41,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-02-27 12:56:41,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2019-02-27 12:56:41,613 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:56:41,613 INFO L82 GeneralOperation]: Start isEquivalent. First operand 53 states. Second operand 52 states. [2019-02-27 12:56:41,613 INFO L74 IsIncluded]: Start isIncluded. First operand 53 states. Second operand 52 states. [2019-02-27 12:56:41,613 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 52 states. [2019-02-27 12:56:41,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:56:41,615 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2019-02-27 12:56:41,615 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2019-02-27 12:56:41,615 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:56:41,616 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:56:41,616 INFO L74 IsIncluded]: Start isIncluded. First operand 52 states. Second operand 53 states. [2019-02-27 12:56:41,616 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 53 states. [2019-02-27 12:56:41,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:56:41,617 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2019-02-27 12:56:41,617 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2019-02-27 12:56:41,618 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:56:41,618 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:56:41,618 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:56:41,618 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:56:41,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-02-27 12:56:41,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2019-02-27 12:56:41,619 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 49 [2019-02-27 12:56:41,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:56:41,619 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2019-02-27 12:56:41,619 INFO L481 AbstractCegarLoop]: Interpolant automaton has 53 states. [2019-02-27 12:56:41,619 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2019-02-27 12:56:41,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-02-27 12:56:41,620 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:56:41,620 INFO L402 BasicCegarLoop]: trace histogram [25, 24, 1, 1] [2019-02-27 12:56:41,620 INFO L423 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:56:41,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:56:41,621 INFO L82 PathProgramCache]: Analyzing trace with hash -61640432, now seen corresponding path program 24 times [2019-02-27 12:56:41,621 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:56:41,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:56:41,622 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 12:56:41,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:56:41,622 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:56:41,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:56:42,866 INFO L273 TraceCheckUtils]: 0: Hoare triple {8265#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {8267#(and (or (<= main_i 0) (<= main_n 24)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} is VALID [2019-02-27 12:56:42,867 INFO L273 TraceCheckUtils]: 1: Hoare triple {8267#(and (or (<= main_i 0) (<= main_n 24)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} assume a[i] != 23;i := i + 4; {8268#(and (or (< 24 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 24)))} is VALID [2019-02-27 12:56:42,868 INFO L273 TraceCheckUtils]: 2: Hoare triple {8268#(and (or (< 24 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 24)))} assume i <= n * 4; {8268#(and (or (< 24 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 24)))} is VALID [2019-02-27 12:56:42,869 INFO L273 TraceCheckUtils]: 3: Hoare triple {8268#(and (or (< 24 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 24)))} assume a[i] != 23;i := i + 4; {8269#(and (or (< 24 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 24)))} is VALID [2019-02-27 12:56:42,870 INFO L273 TraceCheckUtils]: 4: Hoare triple {8269#(and (or (< 24 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 24)))} assume i <= n * 4; {8269#(and (or (< 24 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 24)))} is VALID [2019-02-27 12:56:42,871 INFO L273 TraceCheckUtils]: 5: Hoare triple {8269#(and (or (< 24 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 24)))} assume a[i] != 23;i := i + 4; {8270#(and (or (<= main_n 24) (<= main_i 12)) (or (< 24 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:56:42,872 INFO L273 TraceCheckUtils]: 6: Hoare triple {8270#(and (or (<= main_n 24) (<= main_i 12)) (or (< 24 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {8270#(and (or (<= main_n 24) (<= main_i 12)) (or (< 24 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:56:42,873 INFO L273 TraceCheckUtils]: 7: Hoare triple {8270#(and (or (<= main_n 24) (<= main_i 12)) (or (< 24 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {8271#(and (or (< 24 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 16) (<= main_n 24)))} is VALID [2019-02-27 12:56:42,874 INFO L273 TraceCheckUtils]: 8: Hoare triple {8271#(and (or (< 24 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 16) (<= main_n 24)))} assume i <= n * 4; {8271#(and (or (< 24 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 16) (<= main_n 24)))} is VALID [2019-02-27 12:56:42,875 INFO L273 TraceCheckUtils]: 9: Hoare triple {8271#(and (or (< 24 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 16) (<= main_n 24)))} assume a[i] != 23;i := i + 4; {8272#(and (or (<= main_i 20) (<= main_n 24)) (or (< 24 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:56:42,875 INFO L273 TraceCheckUtils]: 10: Hoare triple {8272#(and (or (<= main_i 20) (<= main_n 24)) (or (< 24 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {8272#(and (or (<= main_i 20) (<= main_n 24)) (or (< 24 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:56:42,876 INFO L273 TraceCheckUtils]: 11: Hoare triple {8272#(and (or (<= main_i 20) (<= main_n 24)) (or (< 24 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {8273#(and (or (<= main_i 24) (<= main_n 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} is VALID [2019-02-27 12:56:42,877 INFO L273 TraceCheckUtils]: 12: Hoare triple {8273#(and (or (<= main_i 24) (<= main_n 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} assume i <= n * 4; {8273#(and (or (<= main_i 24) (<= main_n 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} is VALID [2019-02-27 12:56:42,878 INFO L273 TraceCheckUtils]: 13: Hoare triple {8273#(and (or (<= main_i 24) (<= main_n 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} assume a[i] != 23;i := i + 4; {8274#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 28) (<= main_n 24)))} is VALID [2019-02-27 12:56:42,879 INFO L273 TraceCheckUtils]: 14: Hoare triple {8274#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 28) (<= main_n 24)))} assume i <= n * 4; {8274#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 28) (<= main_n 24)))} is VALID [2019-02-27 12:56:42,880 INFO L273 TraceCheckUtils]: 15: Hoare triple {8274#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 28) (<= main_n 24)))} assume a[i] != 23;i := i + 4; {8275#(and (or (<= main_i 32) (<= main_n 24)) (or (< 24 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:56:42,881 INFO L273 TraceCheckUtils]: 16: Hoare triple {8275#(and (or (<= main_i 32) (<= main_n 24)) (or (< 24 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {8275#(and (or (<= main_i 32) (<= main_n 24)) (or (< 24 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:56:42,882 INFO L273 TraceCheckUtils]: 17: Hoare triple {8275#(and (or (<= main_i 32) (<= main_n 24)) (or (< 24 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {8276#(and (or (<= main_i 36) (<= main_n 24)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 24 main_n)))} is VALID [2019-02-27 12:56:42,883 INFO L273 TraceCheckUtils]: 18: Hoare triple {8276#(and (or (<= main_i 36) (<= main_n 24)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 24 main_n)))} assume i <= n * 4; {8276#(and (or (<= main_i 36) (<= main_n 24)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 24 main_n)))} is VALID [2019-02-27 12:56:42,884 INFO L273 TraceCheckUtils]: 19: Hoare triple {8276#(and (or (<= main_i 36) (<= main_n 24)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 24 main_n)))} assume a[i] != 23;i := i + 4; {8277#(and (or (< 24 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 24)))} is VALID [2019-02-27 12:56:42,884 INFO L273 TraceCheckUtils]: 20: Hoare triple {8277#(and (or (< 24 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 24)))} assume i <= n * 4; {8277#(and (or (< 24 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 24)))} is VALID [2019-02-27 12:56:42,885 INFO L273 TraceCheckUtils]: 21: Hoare triple {8277#(and (or (< 24 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 24)))} assume a[i] != 23;i := i + 4; {8278#(and (or (<= main_n 24) (<= main_i 44)) (or (< 24 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:56:42,886 INFO L273 TraceCheckUtils]: 22: Hoare triple {8278#(and (or (<= main_n 24) (<= main_i 44)) (or (< 24 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {8278#(and (or (<= main_n 24) (<= main_i 44)) (or (< 24 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:56:42,887 INFO L273 TraceCheckUtils]: 23: Hoare triple {8278#(and (or (<= main_n 24) (<= main_i 44)) (or (< 24 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {8279#(and (or (<= main_i 48) (<= main_n 24)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} is VALID [2019-02-27 12:56:42,888 INFO L273 TraceCheckUtils]: 24: Hoare triple {8279#(and (or (<= main_i 48) (<= main_n 24)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} assume i <= n * 4; {8279#(and (or (<= main_i 48) (<= main_n 24)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} is VALID [2019-02-27 12:56:42,889 INFO L273 TraceCheckUtils]: 25: Hoare triple {8279#(and (or (<= main_i 48) (<= main_n 24)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} assume a[i] != 23;i := i + 4; {8280#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 52) (<= main_n 24)))} is VALID [2019-02-27 12:56:42,890 INFO L273 TraceCheckUtils]: 26: Hoare triple {8280#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 52) (<= main_n 24)))} assume i <= n * 4; {8280#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 52) (<= main_n 24)))} is VALID [2019-02-27 12:56:42,891 INFO L273 TraceCheckUtils]: 27: Hoare triple {8280#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 52) (<= main_n 24)))} assume a[i] != 23;i := i + 4; {8281#(and (or (< 24 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 24)))} is VALID [2019-02-27 12:56:42,891 INFO L273 TraceCheckUtils]: 28: Hoare triple {8281#(and (or (< 24 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 24)))} assume i <= n * 4; {8281#(and (or (< 24 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 24)))} is VALID [2019-02-27 12:56:42,892 INFO L273 TraceCheckUtils]: 29: Hoare triple {8281#(and (or (< 24 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 24)))} assume a[i] != 23;i := i + 4; {8282#(and (or (<= main_i 60) (<= main_n 24)) (or (< 24 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:56:42,893 INFO L273 TraceCheckUtils]: 30: Hoare triple {8282#(and (or (<= main_i 60) (<= main_n 24)) (or (< 24 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {8282#(and (or (<= main_i 60) (<= main_n 24)) (or (< 24 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:56:42,894 INFO L273 TraceCheckUtils]: 31: Hoare triple {8282#(and (or (<= main_i 60) (<= main_n 24)) (or (< 24 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {8283#(and (or (<= main_i 64) (<= main_n 24)) (or (< 24 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:56:42,895 INFO L273 TraceCheckUtils]: 32: Hoare triple {8283#(and (or (<= main_i 64) (<= main_n 24)) (or (< 24 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {8283#(and (or (<= main_i 64) (<= main_n 24)) (or (< 24 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:56:42,896 INFO L273 TraceCheckUtils]: 33: Hoare triple {8283#(and (or (<= main_i 64) (<= main_n 24)) (or (< 24 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {8284#(and (or (<= main_n 24) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} is VALID [2019-02-27 12:56:42,897 INFO L273 TraceCheckUtils]: 34: Hoare triple {8284#(and (or (<= main_n 24) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} assume i <= n * 4; {8284#(and (or (<= main_n 24) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} is VALID [2019-02-27 12:56:42,898 INFO L273 TraceCheckUtils]: 35: Hoare triple {8284#(and (or (<= main_n 24) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} assume a[i] != 23;i := i + 4; {8285#(and (or (<= main_i 72) (<= main_n 24)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} is VALID [2019-02-27 12:56:42,899 INFO L273 TraceCheckUtils]: 36: Hoare triple {8285#(and (or (<= main_i 72) (<= main_n 24)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} assume i <= n * 4; {8285#(and (or (<= main_i 72) (<= main_n 24)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} is VALID [2019-02-27 12:56:42,900 INFO L273 TraceCheckUtils]: 37: Hoare triple {8285#(and (or (<= main_i 72) (<= main_n 24)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} assume a[i] != 23;i := i + 4; {8286#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 76) (<= main_n 24)))} is VALID [2019-02-27 12:56:42,900 INFO L273 TraceCheckUtils]: 38: Hoare triple {8286#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 76) (<= main_n 24)))} assume i <= n * 4; {8286#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 76) (<= main_n 24)))} is VALID [2019-02-27 12:56:42,901 INFO L273 TraceCheckUtils]: 39: Hoare triple {8286#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 76) (<= main_n 24)))} assume a[i] != 23;i := i + 4; {8287#(and (or (<= main_i 80) (<= main_n 24)) (or (< 24 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:56:42,902 INFO L273 TraceCheckUtils]: 40: Hoare triple {8287#(and (or (<= main_i 80) (<= main_n 24)) (or (< 24 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {8287#(and (or (<= main_i 80) (<= main_n 24)) (or (< 24 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:56:42,903 INFO L273 TraceCheckUtils]: 41: Hoare triple {8287#(and (or (<= main_i 80) (<= main_n 24)) (or (< 24 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {8288#(and (or (<= main_i 84) (<= main_n 24)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 24 main_n)))} is VALID [2019-02-27 12:56:42,904 INFO L273 TraceCheckUtils]: 42: Hoare triple {8288#(and (or (<= main_i 84) (<= main_n 24)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 24 main_n)))} assume i <= n * 4; {8288#(and (or (<= main_i 84) (<= main_n 24)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 24 main_n)))} is VALID [2019-02-27 12:56:42,905 INFO L273 TraceCheckUtils]: 43: Hoare triple {8288#(and (or (<= main_i 84) (<= main_n 24)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 24 main_n)))} assume a[i] != 23;i := i + 4; {8289#(and (or (< 24 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 24)))} is VALID [2019-02-27 12:56:42,906 INFO L273 TraceCheckUtils]: 44: Hoare triple {8289#(and (or (< 24 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 24)))} assume i <= n * 4; {8289#(and (or (< 24 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 24)))} is VALID [2019-02-27 12:56:42,907 INFO L273 TraceCheckUtils]: 45: Hoare triple {8289#(and (or (< 24 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 24)))} assume a[i] != 23;i := i + 4; {8290#(and (or (<= main_i 92) (<= main_n 24)) (or (< 24 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:56:42,908 INFO L273 TraceCheckUtils]: 46: Hoare triple {8290#(and (or (<= main_i 92) (<= main_n 24)) (or (< 24 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {8290#(and (or (<= main_i 92) (<= main_n 24)) (or (< 24 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:56:42,909 INFO L273 TraceCheckUtils]: 47: Hoare triple {8290#(and (or (<= main_i 92) (<= main_n 24)) (or (< 24 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {8291#(and (or (<= main_i 96) (<= main_n 24)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 24 main_n)))} is VALID [2019-02-27 12:56:42,910 INFO L273 TraceCheckUtils]: 48: Hoare triple {8291#(and (or (<= main_i 96) (<= main_n 24)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 24 main_n)))} assume i <= n * 4; {8292#(and (<= main_i 96) (or (< 24 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} is VALID [2019-02-27 12:56:42,911 INFO L273 TraceCheckUtils]: 49: Hoare triple {8292#(and (<= main_i 96) (or (< 24 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} assume a[i] != 23;i := i + 4; {8293#(and (<= main_i 100) (<= 25 main_n))} is VALID [2019-02-27 12:56:42,911 INFO L273 TraceCheckUtils]: 50: Hoare triple {8293#(and (<= main_i 100) (<= 25 main_n))} assume !(i <= n * 4); {8266#false} is VALID [2019-02-27 12:56:42,925 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:56:42,925 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:56:42,925 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:56:42,926 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:56:42,926 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:56:42,926 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:56:42,926 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:56:42,934 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-27 12:56:42,934 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-27 12:56:42,951 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-27 12:56:42,951 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 12:56:42,952 WARN L254 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 55 conjunts are in the unsatisfiable core [2019-02-27 12:56:42,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:56:42,960 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:56:42,975 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:56:42,976 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:56:42,988 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:56:42,988 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:56:42,990 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:56:42,990 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_28]. (and (= (store v_main_a_28 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-27 12:56:42,990 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:56:44,500 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:56:44,504 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:56:44,508 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:56:44,508 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:56:44,511 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:56:44,511 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 96 .cse0) (<= main_i 100) (not (= (select main_a 96) 23)) (= 23 (select main_a .cse0)))) [2019-02-27 12:56:44,512 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 96 .cse0) (not (= 96 .cse0)) (<= main_i 100))) [2019-02-27 12:56:44,545 INFO L273 TraceCheckUtils]: 0: Hoare triple {8265#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {8297#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,546 INFO L273 TraceCheckUtils]: 1: Hoare triple {8297#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8301#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:56:44,547 INFO L273 TraceCheckUtils]: 2: Hoare triple {8301#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {8301#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:56:44,547 INFO L273 TraceCheckUtils]: 3: Hoare triple {8301#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {8308#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,548 INFO L273 TraceCheckUtils]: 4: Hoare triple {8308#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8308#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,549 INFO L273 TraceCheckUtils]: 5: Hoare triple {8308#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8315#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:56:44,550 INFO L273 TraceCheckUtils]: 6: Hoare triple {8315#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {8315#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:56:44,550 INFO L273 TraceCheckUtils]: 7: Hoare triple {8315#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {8322#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,551 INFO L273 TraceCheckUtils]: 8: Hoare triple {8322#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8322#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,552 INFO L273 TraceCheckUtils]: 9: Hoare triple {8322#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8329#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,553 INFO L273 TraceCheckUtils]: 10: Hoare triple {8329#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8329#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,553 INFO L273 TraceCheckUtils]: 11: Hoare triple {8329#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8336#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,554 INFO L273 TraceCheckUtils]: 12: Hoare triple {8336#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8336#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,555 INFO L273 TraceCheckUtils]: 13: Hoare triple {8336#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8343#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,556 INFO L273 TraceCheckUtils]: 14: Hoare triple {8343#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8343#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,556 INFO L273 TraceCheckUtils]: 15: Hoare triple {8343#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8350#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,557 INFO L273 TraceCheckUtils]: 16: Hoare triple {8350#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8350#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,558 INFO L273 TraceCheckUtils]: 17: Hoare triple {8350#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8357#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,558 INFO L273 TraceCheckUtils]: 18: Hoare triple {8357#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8357#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,559 INFO L273 TraceCheckUtils]: 19: Hoare triple {8357#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8364#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,560 INFO L273 TraceCheckUtils]: 20: Hoare triple {8364#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8364#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,561 INFO L273 TraceCheckUtils]: 21: Hoare triple {8364#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8371#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,561 INFO L273 TraceCheckUtils]: 22: Hoare triple {8371#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8371#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,562 INFO L273 TraceCheckUtils]: 23: Hoare triple {8371#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8378#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,563 INFO L273 TraceCheckUtils]: 24: Hoare triple {8378#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8378#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,563 INFO L273 TraceCheckUtils]: 25: Hoare triple {8378#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8385#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,564 INFO L273 TraceCheckUtils]: 26: Hoare triple {8385#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8385#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,565 INFO L273 TraceCheckUtils]: 27: Hoare triple {8385#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8392#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,565 INFO L273 TraceCheckUtils]: 28: Hoare triple {8392#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8392#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,566 INFO L273 TraceCheckUtils]: 29: Hoare triple {8392#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8399#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,567 INFO L273 TraceCheckUtils]: 30: Hoare triple {8399#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8399#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,567 INFO L273 TraceCheckUtils]: 31: Hoare triple {8399#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8406#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,568 INFO L273 TraceCheckUtils]: 32: Hoare triple {8406#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8406#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,569 INFO L273 TraceCheckUtils]: 33: Hoare triple {8406#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8413#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,569 INFO L273 TraceCheckUtils]: 34: Hoare triple {8413#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8413#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,570 INFO L273 TraceCheckUtils]: 35: Hoare triple {8413#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8420#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,571 INFO L273 TraceCheckUtils]: 36: Hoare triple {8420#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8420#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,571 INFO L273 TraceCheckUtils]: 37: Hoare triple {8420#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8427#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,572 INFO L273 TraceCheckUtils]: 38: Hoare triple {8427#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8427#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,573 INFO L273 TraceCheckUtils]: 39: Hoare triple {8427#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8434#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:56:44,574 INFO L273 TraceCheckUtils]: 40: Hoare triple {8434#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {8434#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:56:44,581 INFO L273 TraceCheckUtils]: 41: Hoare triple {8434#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {8441#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,582 INFO L273 TraceCheckUtils]: 42: Hoare triple {8441#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8441#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,582 INFO L273 TraceCheckUtils]: 43: Hoare triple {8441#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8448#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,583 INFO L273 TraceCheckUtils]: 44: Hoare triple {8448#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8448#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,583 INFO L273 TraceCheckUtils]: 45: Hoare triple {8448#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8455#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,584 INFO L273 TraceCheckUtils]: 46: Hoare triple {8455#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8455#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,584 INFO L273 TraceCheckUtils]: 47: Hoare triple {8455#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8462#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,585 INFO L273 TraceCheckUtils]: 48: Hoare triple {8462#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8466#(and (= main_i 96) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:44,585 INFO L273 TraceCheckUtils]: 49: Hoare triple {8466#(and (= main_i 96) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8293#(and (<= main_i 100) (<= 25 main_n))} is VALID [2019-02-27 12:56:44,586 INFO L273 TraceCheckUtils]: 50: Hoare triple {8293#(and (<= main_i 100) (<= 25 main_n))} assume !(i <= n * 4); {8266#false} is VALID [2019-02-27 12:56:44,593 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:56:44,593 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:56:46,971 INFO L273 TraceCheckUtils]: 50: Hoare triple {8473#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {8266#false} is VALID [2019-02-27 12:56:46,972 INFO L273 TraceCheckUtils]: 49: Hoare triple {8477#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {8473#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:56:46,973 INFO L273 TraceCheckUtils]: 48: Hoare triple {8481#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {8477#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:56:46,973 INFO L273 TraceCheckUtils]: 47: Hoare triple {8485#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {8481#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:56:46,974 INFO L273 TraceCheckUtils]: 46: Hoare triple {8485#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {8485#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:56:46,974 INFO L273 TraceCheckUtils]: 45: Hoare triple {8492#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {8485#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:56:46,975 INFO L273 TraceCheckUtils]: 44: Hoare triple {8492#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {8492#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:56:46,976 INFO L273 TraceCheckUtils]: 43: Hoare triple {8499#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {8492#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:56:46,976 INFO L273 TraceCheckUtils]: 42: Hoare triple {8499#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {8499#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:56:46,977 INFO L273 TraceCheckUtils]: 41: Hoare triple {8506#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {8499#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:56:46,978 INFO L273 TraceCheckUtils]: 40: Hoare triple {8506#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {8506#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:56:46,979 INFO L273 TraceCheckUtils]: 39: Hoare triple {8513#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {8506#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:56:46,980 INFO L273 TraceCheckUtils]: 38: Hoare triple {8513#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {8513#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:56:46,981 INFO L273 TraceCheckUtils]: 37: Hoare triple {8520#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {8513#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:56:46,981 INFO L273 TraceCheckUtils]: 36: Hoare triple {8520#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {8520#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:56:46,983 INFO L273 TraceCheckUtils]: 35: Hoare triple {8527#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {8520#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:56:46,983 INFO L273 TraceCheckUtils]: 34: Hoare triple {8527#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {8527#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:56:46,984 INFO L273 TraceCheckUtils]: 33: Hoare triple {8534#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {8527#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:56:46,985 INFO L273 TraceCheckUtils]: 32: Hoare triple {8534#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {8534#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:56:46,986 INFO L273 TraceCheckUtils]: 31: Hoare triple {8541#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {8534#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:56:46,987 INFO L273 TraceCheckUtils]: 30: Hoare triple {8541#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {8541#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:56:46,988 INFO L273 TraceCheckUtils]: 29: Hoare triple {8548#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {8541#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:56:46,988 INFO L273 TraceCheckUtils]: 28: Hoare triple {8548#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {8548#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:56:46,989 INFO L273 TraceCheckUtils]: 27: Hoare triple {8555#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {8548#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:56:46,990 INFO L273 TraceCheckUtils]: 26: Hoare triple {8555#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {8555#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:56:46,991 INFO L273 TraceCheckUtils]: 25: Hoare triple {8562#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {8555#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:56:46,992 INFO L273 TraceCheckUtils]: 24: Hoare triple {8562#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {8562#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:56:46,993 INFO L273 TraceCheckUtils]: 23: Hoare triple {8569#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {8562#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:56:46,993 INFO L273 TraceCheckUtils]: 22: Hoare triple {8569#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {8569#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:56:46,995 INFO L273 TraceCheckUtils]: 21: Hoare triple {8576#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {8569#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:56:46,995 INFO L273 TraceCheckUtils]: 20: Hoare triple {8576#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {8576#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:56:46,996 INFO L273 TraceCheckUtils]: 19: Hoare triple {8583#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {8576#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:56:46,997 INFO L273 TraceCheckUtils]: 18: Hoare triple {8583#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {8583#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:56:46,998 INFO L273 TraceCheckUtils]: 17: Hoare triple {8590#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {8583#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:56:46,999 INFO L273 TraceCheckUtils]: 16: Hoare triple {8590#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {8590#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:56:47,000 INFO L273 TraceCheckUtils]: 15: Hoare triple {8597#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {8590#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:56:47,000 INFO L273 TraceCheckUtils]: 14: Hoare triple {8597#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {8597#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:56:47,001 INFO L273 TraceCheckUtils]: 13: Hoare triple {8604#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {8597#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:56:47,002 INFO L273 TraceCheckUtils]: 12: Hoare triple {8604#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {8604#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:56:47,003 INFO L273 TraceCheckUtils]: 11: Hoare triple {8611#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {8604#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:56:47,004 INFO L273 TraceCheckUtils]: 10: Hoare triple {8611#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {8611#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:56:47,005 INFO L273 TraceCheckUtils]: 9: Hoare triple {8618#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {8611#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:56:47,005 INFO L273 TraceCheckUtils]: 8: Hoare triple {8618#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {8618#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 12:56:47,007 INFO L273 TraceCheckUtils]: 7: Hoare triple {8625#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {8618#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 12:56:47,007 INFO L273 TraceCheckUtils]: 6: Hoare triple {8625#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {8625#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 12:56:47,008 INFO L273 TraceCheckUtils]: 5: Hoare triple {8632#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {8625#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 12:56:47,009 INFO L273 TraceCheckUtils]: 4: Hoare triple {8632#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {8632#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 12:56:47,010 INFO L273 TraceCheckUtils]: 3: Hoare triple {8639#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {8632#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 12:56:47,011 INFO L273 TraceCheckUtils]: 2: Hoare triple {8639#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {8639#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 12:56:47,012 INFO L273 TraceCheckUtils]: 1: Hoare triple {8646#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {8639#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 12:56:47,013 INFO L273 TraceCheckUtils]: 0: Hoare triple {8265#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {8646#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 12:56:47,024 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:56:47,043 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:56:47,044 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 80 [2019-02-27 12:56:47,044 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:56:47,044 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 51 [2019-02-27 12:56:47,044 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:56:47,044 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 55 states. [2019-02-27 12:56:47,273 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 101 edges. 101 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:56:47,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 55 states [2019-02-27 12:56:47,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2019-02-27 12:56:47,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=872, Invalid=5770, Unknown=0, NotChecked=0, Total=6642 [2019-02-27 12:56:47,275 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand 55 states. [2019-02-27 12:56:52,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:56:52,518 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2019-02-27 12:56:52,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-02-27 12:56:52,518 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 51 [2019-02-27 12:56:52,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:56:52,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-02-27 12:56:52,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 56 transitions. [2019-02-27 12:56:52,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-02-27 12:56:52,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 56 transitions. [2019-02-27 12:56:52,521 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 29 states and 56 transitions. [2019-02-27 12:56:52,583 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 56 edges. 56 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:56:52,584 INFO L225 Difference]: With dead ends: 56 [2019-02-27 12:56:52,584 INFO L226 Difference]: Without dead ends: 55 [2019-02-27 12:56:52,585 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1508 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=872, Invalid=5770, Unknown=0, NotChecked=0, Total=6642 [2019-02-27 12:56:52,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-02-27 12:56:52,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2019-02-27 12:56:52,631 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:56:52,631 INFO L82 GeneralOperation]: Start isEquivalent. First operand 55 states. Second operand 54 states. [2019-02-27 12:56:52,631 INFO L74 IsIncluded]: Start isIncluded. First operand 55 states. Second operand 54 states. [2019-02-27 12:56:52,631 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 54 states. [2019-02-27 12:56:52,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:56:52,633 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2019-02-27 12:56:52,633 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2019-02-27 12:56:52,633 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:56:52,633 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:56:52,633 INFO L74 IsIncluded]: Start isIncluded. First operand 54 states. Second operand 55 states. [2019-02-27 12:56:52,633 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 55 states. [2019-02-27 12:56:52,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:56:52,634 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2019-02-27 12:56:52,634 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2019-02-27 12:56:52,635 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:56:52,635 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:56:52,635 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:56:52,635 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:56:52,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-02-27 12:56:52,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2019-02-27 12:56:52,636 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 51 [2019-02-27 12:56:52,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:56:52,636 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2019-02-27 12:56:52,636 INFO L481 AbstractCegarLoop]: Interpolant automaton has 55 states. [2019-02-27 12:56:52,636 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2019-02-27 12:56:52,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-02-27 12:56:52,637 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:56:52,637 INFO L402 BasicCegarLoop]: trace histogram [26, 25, 1, 1] [2019-02-27 12:56:52,637 INFO L423 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:56:52,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:56:52,637 INFO L82 PathProgramCache]: Analyzing trace with hash 893088082, now seen corresponding path program 25 times [2019-02-27 12:56:52,637 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:56:52,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:56:52,638 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 12:56:52,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:56:52,638 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:56:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:56:54,085 INFO L273 TraceCheckUtils]: 0: Hoare triple {8922#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {8924#(and (or (<= main_n 25) (<= main_i 0)) (or (<= 0 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:54,086 INFO L273 TraceCheckUtils]: 1: Hoare triple {8924#(and (or (<= main_n 25) (<= main_i 0)) (or (<= 0 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8925#(and (or (< 25 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 4)))} is VALID [2019-02-27 12:56:54,087 INFO L273 TraceCheckUtils]: 2: Hoare triple {8925#(and (or (< 25 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 4)))} assume i <= n * 4; {8925#(and (or (< 25 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 4)))} is VALID [2019-02-27 12:56:54,088 INFO L273 TraceCheckUtils]: 3: Hoare triple {8925#(and (or (< 25 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {8926#(and (or (<= main_i 8) (<= main_n 25)) (or (<= 8 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:54,089 INFO L273 TraceCheckUtils]: 4: Hoare triple {8926#(and (or (<= main_i 8) (<= main_n 25)) (or (<= 8 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8926#(and (or (<= main_i 8) (<= main_n 25)) (or (<= 8 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:54,090 INFO L273 TraceCheckUtils]: 5: Hoare triple {8926#(and (or (<= main_i 8) (<= main_n 25)) (or (<= 8 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8927#(and (or (< 25 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 12)))} is VALID [2019-02-27 12:56:54,091 INFO L273 TraceCheckUtils]: 6: Hoare triple {8927#(and (or (< 25 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 12)))} assume i <= n * 4; {8927#(and (or (< 25 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 12)))} is VALID [2019-02-27 12:56:54,092 INFO L273 TraceCheckUtils]: 7: Hoare triple {8927#(and (or (< 25 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {8928#(and (or (<= main_n 25) (<= main_i 16)) (or (<= 16 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:54,092 INFO L273 TraceCheckUtils]: 8: Hoare triple {8928#(and (or (<= main_n 25) (<= main_i 16)) (or (<= 16 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8928#(and (or (<= main_n 25) (<= main_i 16)) (or (<= 16 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:54,093 INFO L273 TraceCheckUtils]: 9: Hoare triple {8928#(and (or (<= main_n 25) (<= main_i 16)) (or (<= 16 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8929#(and (or (< 25 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 20)))} is VALID [2019-02-27 12:56:54,094 INFO L273 TraceCheckUtils]: 10: Hoare triple {8929#(and (or (< 25 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 20)))} assume i <= n * 4; {8929#(and (or (< 25 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 20)))} is VALID [2019-02-27 12:56:54,095 INFO L273 TraceCheckUtils]: 11: Hoare triple {8929#(and (or (< 25 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 20)))} assume a[i] != 23;i := i + 4; {8930#(and (or (<= main_n 25) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))) (or (<= 24 main_i) (< 25 main_n)))} is VALID [2019-02-27 12:56:54,096 INFO L273 TraceCheckUtils]: 12: Hoare triple {8930#(and (or (<= main_n 25) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))) (or (<= 24 main_i) (< 25 main_n)))} assume i <= n * 4; {8930#(and (or (<= main_n 25) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))) (or (<= 24 main_i) (< 25 main_n)))} is VALID [2019-02-27 12:56:54,097 INFO L273 TraceCheckUtils]: 13: Hoare triple {8930#(and (or (<= main_n 25) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))) (or (<= 24 main_i) (< 25 main_n)))} assume a[i] != 23;i := i + 4; {8931#(and (= 23 (select main_a (* 4 main_n))) (or (<= 28 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 28)))} is VALID [2019-02-27 12:56:54,098 INFO L273 TraceCheckUtils]: 14: Hoare triple {8931#(and (= 23 (select main_a (* 4 main_n))) (or (<= 28 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 28)))} assume i <= n * 4; {8931#(and (= 23 (select main_a (* 4 main_n))) (or (<= 28 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 28)))} is VALID [2019-02-27 12:56:54,099 INFO L273 TraceCheckUtils]: 15: Hoare triple {8931#(and (= 23 (select main_a (* 4 main_n))) (or (<= 28 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {8932#(and (or (<= 32 main_i) (< 25 main_n)) (or (<= main_i 32) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:54,100 INFO L273 TraceCheckUtils]: 16: Hoare triple {8932#(and (or (<= 32 main_i) (< 25 main_n)) (or (<= main_i 32) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8932#(and (or (<= 32 main_i) (< 25 main_n)) (or (<= main_i 32) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:54,101 INFO L273 TraceCheckUtils]: 17: Hoare triple {8932#(and (or (<= 32 main_i) (< 25 main_n)) (or (<= main_i 32) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8933#(and (or (< 25 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:54,101 INFO L273 TraceCheckUtils]: 18: Hoare triple {8933#(and (or (< 25 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8933#(and (or (< 25 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:54,102 INFO L273 TraceCheckUtils]: 19: Hoare triple {8933#(and (or (< 25 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8934#(and (or (<= main_i 40) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 25 main_n)))} is VALID [2019-02-27 12:56:54,103 INFO L273 TraceCheckUtils]: 20: Hoare triple {8934#(and (or (<= main_i 40) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 25 main_n)))} assume i <= n * 4; {8934#(and (or (<= main_i 40) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 25 main_n)))} is VALID [2019-02-27 12:56:54,104 INFO L273 TraceCheckUtils]: 21: Hoare triple {8934#(and (or (<= main_i 40) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 25 main_n)))} assume a[i] != 23;i := i + 4; {8935#(and (or (<= 44 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:54,105 INFO L273 TraceCheckUtils]: 22: Hoare triple {8935#(and (or (<= 44 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8935#(and (or (<= 44 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:54,106 INFO L273 TraceCheckUtils]: 23: Hoare triple {8935#(and (or (<= 44 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8936#(and (or (<= main_n 25) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 25 main_n)))} is VALID [2019-02-27 12:56:54,107 INFO L273 TraceCheckUtils]: 24: Hoare triple {8936#(and (or (<= main_n 25) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 25 main_n)))} assume i <= n * 4; {8936#(and (or (<= main_n 25) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 25 main_n)))} is VALID [2019-02-27 12:56:54,108 INFO L273 TraceCheckUtils]: 25: Hoare triple {8936#(and (or (<= main_n 25) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 25 main_n)))} assume a[i] != 23;i := i + 4; {8937#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 52) (<= main_n 25)) (or (< 25 main_n) (<= 52 main_i)))} is VALID [2019-02-27 12:56:54,109 INFO L273 TraceCheckUtils]: 26: Hoare triple {8937#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 52) (<= main_n 25)) (or (< 25 main_n) (<= 52 main_i)))} assume i <= n * 4; {8937#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 52) (<= main_n 25)) (or (< 25 main_n) (<= 52 main_i)))} is VALID [2019-02-27 12:56:54,110 INFO L273 TraceCheckUtils]: 27: Hoare triple {8937#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 52) (<= main_n 25)) (or (< 25 main_n) (<= 52 main_i)))} assume a[i] != 23;i := i + 4; {8938#(and (or (<= main_n 25) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))) (or (<= 56 main_i) (< 25 main_n)))} is VALID [2019-02-27 12:56:54,110 INFO L273 TraceCheckUtils]: 28: Hoare triple {8938#(and (or (<= main_n 25) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))) (or (<= 56 main_i) (< 25 main_n)))} assume i <= n * 4; {8938#(and (or (<= main_n 25) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))) (or (<= 56 main_i) (< 25 main_n)))} is VALID [2019-02-27 12:56:54,111 INFO L273 TraceCheckUtils]: 29: Hoare triple {8938#(and (or (<= main_n 25) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))) (or (<= 56 main_i) (< 25 main_n)))} assume a[i] != 23;i := i + 4; {8939#(and (or (<= 60 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:54,112 INFO L273 TraceCheckUtils]: 30: Hoare triple {8939#(and (or (<= 60 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8939#(and (or (<= 60 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:54,113 INFO L273 TraceCheckUtils]: 31: Hoare triple {8939#(and (or (<= 60 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8940#(and (or (<= 64 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 64)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:54,114 INFO L273 TraceCheckUtils]: 32: Hoare triple {8940#(and (or (<= 64 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 64)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8940#(and (or (<= 64 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 64)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:54,115 INFO L273 TraceCheckUtils]: 33: Hoare triple {8940#(and (or (<= 64 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 64)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8941#(and (or (< 25 main_n) (<= 68 main_i)) (or (<= main_n 25) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:54,116 INFO L273 TraceCheckUtils]: 34: Hoare triple {8941#(and (or (< 25 main_n) (<= 68 main_i)) (or (<= main_n 25) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8941#(and (or (< 25 main_n) (<= 68 main_i)) (or (<= main_n 25) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:54,117 INFO L273 TraceCheckUtils]: 35: Hoare triple {8941#(and (or (< 25 main_n) (<= 68 main_i)) (or (<= main_n 25) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8942#(and (or (<= 72 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:54,118 INFO L273 TraceCheckUtils]: 36: Hoare triple {8942#(and (or (<= 72 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8942#(and (or (<= 72 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:54,119 INFO L273 TraceCheckUtils]: 37: Hoare triple {8942#(and (or (<= 72 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8943#(and (or (<= 76 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 25)))} is VALID [2019-02-27 12:56:54,119 INFO L273 TraceCheckUtils]: 38: Hoare triple {8943#(and (or (<= 76 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 25)))} assume i <= n * 4; {8943#(and (or (<= 76 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 25)))} is VALID [2019-02-27 12:56:54,120 INFO L273 TraceCheckUtils]: 39: Hoare triple {8943#(and (or (<= 76 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 25)))} assume a[i] != 23;i := i + 4; {8944#(and (or (<= 80 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 80)))} is VALID [2019-02-27 12:56:54,121 INFO L273 TraceCheckUtils]: 40: Hoare triple {8944#(and (or (<= 80 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 80)))} assume i <= n * 4; {8944#(and (or (<= 80 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 80)))} is VALID [2019-02-27 12:56:54,122 INFO L273 TraceCheckUtils]: 41: Hoare triple {8944#(and (or (<= 80 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 80)))} assume a[i] != 23;i := i + 4; {8945#(and (or (<= main_i 84) (<= main_n 25)) (or (< 25 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:54,123 INFO L273 TraceCheckUtils]: 42: Hoare triple {8945#(and (or (<= main_i 84) (<= main_n 25)) (or (< 25 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8945#(and (or (<= main_i 84) (<= main_n 25)) (or (< 25 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:54,124 INFO L273 TraceCheckUtils]: 43: Hoare triple {8945#(and (or (<= main_i 84) (<= main_n 25)) (or (< 25 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8946#(and (or (<= main_i 88) (<= main_n 25)) (or (<= 88 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:54,125 INFO L273 TraceCheckUtils]: 44: Hoare triple {8946#(and (or (<= main_i 88) (<= main_n 25)) (or (<= 88 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8946#(and (or (<= main_i 88) (<= main_n 25)) (or (<= 88 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:54,126 INFO L273 TraceCheckUtils]: 45: Hoare triple {8946#(and (or (<= main_i 88) (<= main_n 25)) (or (<= 88 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8947#(and (or (< 25 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:54,127 INFO L273 TraceCheckUtils]: 46: Hoare triple {8947#(and (or (< 25 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8947#(and (or (< 25 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:54,128 INFO L273 TraceCheckUtils]: 47: Hoare triple {8947#(and (or (< 25 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8948#(and (or (<= 96 main_i) (< 25 main_n)) (or (<= main_i 96) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:54,128 INFO L273 TraceCheckUtils]: 48: Hoare triple {8948#(and (or (<= 96 main_i) (< 25 main_n)) (or (<= main_i 96) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8948#(and (or (<= 96 main_i) (< 25 main_n)) (or (<= main_i 96) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:54,130 INFO L273 TraceCheckUtils]: 49: Hoare triple {8948#(and (or (<= 96 main_i) (< 25 main_n)) (or (<= main_i 96) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8949#(and (or (= (* 4 main_n) main_i) (and (or (<= (* 4 main_n) main_i) (< 25 main_n)) (or (<= main_i 100) (<= main_n 25)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-02-27 12:56:54,131 INFO L273 TraceCheckUtils]: 50: Hoare triple {8949#(and (or (= (* 4 main_n) main_i) (and (or (<= (* 4 main_n) main_i) (< 25 main_n)) (or (<= main_i 100) (<= main_n 25)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume i <= n * 4; {8950#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 100) (< 25 main_n))))} is VALID [2019-02-27 12:56:54,132 INFO L273 TraceCheckUtils]: 51: Hoare triple {8950#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 100) (< 25 main_n))))} assume a[i] != 23;i := i + 4; {8951#(and (<= main_i 104) (< 25 main_n))} is VALID [2019-02-27 12:56:54,132 INFO L273 TraceCheckUtils]: 52: Hoare triple {8951#(and (<= main_i 104) (< 25 main_n))} assume !(i <= n * 4); {8923#false} is VALID [2019-02-27 12:56:54,146 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:56:54,146 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:56:54,146 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:56:54,146 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:56:54,146 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:56:54,146 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:56:54,146 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:56:54,157 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 12:56:54,157 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-27 12:56:54,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:56:54,173 WARN L254 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 57 conjunts are in the unsatisfiable core [2019-02-27 12:56:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:56:54,194 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:56:54,212 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:56:54,214 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:56:54,223 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:56:54,223 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:56:54,225 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:56:54,225 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_29]. (and (= (store v_main_a_29 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-27 12:56:54,225 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:56:55,491 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:56:55,493 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:56:55,499 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:56:55,499 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:56:55,502 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:56:55,502 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 104) (not (= (select main_a 100) 23)) (= 23 (select main_a .cse0)) (<= 100 .cse0))) [2019-02-27 12:56:55,502 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 104) (not (= 100 .cse0)) (<= 100 .cse0))) [2019-02-27 12:56:55,539 INFO L273 TraceCheckUtils]: 0: Hoare triple {8922#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {8955#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,539 INFO L273 TraceCheckUtils]: 1: Hoare triple {8955#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8959#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:56:55,540 INFO L273 TraceCheckUtils]: 2: Hoare triple {8959#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {8959#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:56:55,540 INFO L273 TraceCheckUtils]: 3: Hoare triple {8959#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {8966#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,541 INFO L273 TraceCheckUtils]: 4: Hoare triple {8966#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8966#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,542 INFO L273 TraceCheckUtils]: 5: Hoare triple {8966#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8973#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:56:55,542 INFO L273 TraceCheckUtils]: 6: Hoare triple {8973#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {8973#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:56:55,543 INFO L273 TraceCheckUtils]: 7: Hoare triple {8973#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {8980#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,544 INFO L273 TraceCheckUtils]: 8: Hoare triple {8980#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8980#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,545 INFO L273 TraceCheckUtils]: 9: Hoare triple {8980#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8987#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,545 INFO L273 TraceCheckUtils]: 10: Hoare triple {8987#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8987#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,546 INFO L273 TraceCheckUtils]: 11: Hoare triple {8987#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8994#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,547 INFO L273 TraceCheckUtils]: 12: Hoare triple {8994#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8994#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,548 INFO L273 TraceCheckUtils]: 13: Hoare triple {8994#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9001#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,548 INFO L273 TraceCheckUtils]: 14: Hoare triple {9001#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9001#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,549 INFO L273 TraceCheckUtils]: 15: Hoare triple {9001#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9008#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,550 INFO L273 TraceCheckUtils]: 16: Hoare triple {9008#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9008#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,550 INFO L273 TraceCheckUtils]: 17: Hoare triple {9008#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9015#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,551 INFO L273 TraceCheckUtils]: 18: Hoare triple {9015#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9015#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,552 INFO L273 TraceCheckUtils]: 19: Hoare triple {9015#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9022#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,552 INFO L273 TraceCheckUtils]: 20: Hoare triple {9022#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9022#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,553 INFO L273 TraceCheckUtils]: 21: Hoare triple {9022#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9029#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,554 INFO L273 TraceCheckUtils]: 22: Hoare triple {9029#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9029#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,554 INFO L273 TraceCheckUtils]: 23: Hoare triple {9029#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9036#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,555 INFO L273 TraceCheckUtils]: 24: Hoare triple {9036#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9036#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,556 INFO L273 TraceCheckUtils]: 25: Hoare triple {9036#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9043#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,557 INFO L273 TraceCheckUtils]: 26: Hoare triple {9043#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9043#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,557 INFO L273 TraceCheckUtils]: 27: Hoare triple {9043#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9050#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,558 INFO L273 TraceCheckUtils]: 28: Hoare triple {9050#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9050#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,559 INFO L273 TraceCheckUtils]: 29: Hoare triple {9050#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9057#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,559 INFO L273 TraceCheckUtils]: 30: Hoare triple {9057#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9057#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,560 INFO L273 TraceCheckUtils]: 31: Hoare triple {9057#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9064#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,561 INFO L273 TraceCheckUtils]: 32: Hoare triple {9064#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9064#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,562 INFO L273 TraceCheckUtils]: 33: Hoare triple {9064#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9071#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,562 INFO L273 TraceCheckUtils]: 34: Hoare triple {9071#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9071#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,563 INFO L273 TraceCheckUtils]: 35: Hoare triple {9071#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9078#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,564 INFO L273 TraceCheckUtils]: 36: Hoare triple {9078#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9078#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,564 INFO L273 TraceCheckUtils]: 37: Hoare triple {9078#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9085#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,565 INFO L273 TraceCheckUtils]: 38: Hoare triple {9085#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9085#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,566 INFO L273 TraceCheckUtils]: 39: Hoare triple {9085#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9092#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:56:55,567 INFO L273 TraceCheckUtils]: 40: Hoare triple {9092#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {9092#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:56:55,567 INFO L273 TraceCheckUtils]: 41: Hoare triple {9092#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {9099#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,568 INFO L273 TraceCheckUtils]: 42: Hoare triple {9099#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9099#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,569 INFO L273 TraceCheckUtils]: 43: Hoare triple {9099#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9106#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,569 INFO L273 TraceCheckUtils]: 44: Hoare triple {9106#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9106#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,570 INFO L273 TraceCheckUtils]: 45: Hoare triple {9106#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9113#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,571 INFO L273 TraceCheckUtils]: 46: Hoare triple {9113#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9113#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,572 INFO L273 TraceCheckUtils]: 47: Hoare triple {9113#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9120#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,572 INFO L273 TraceCheckUtils]: 48: Hoare triple {9120#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9120#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,573 INFO L273 TraceCheckUtils]: 49: Hoare triple {9120#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9127#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,574 INFO L273 TraceCheckUtils]: 50: Hoare triple {9127#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9131#(and (= main_i 100) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:56:55,574 INFO L273 TraceCheckUtils]: 51: Hoare triple {9131#(and (= main_i 100) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8951#(and (<= main_i 104) (< 25 main_n))} is VALID [2019-02-27 12:56:55,575 INFO L273 TraceCheckUtils]: 52: Hoare triple {8951#(and (<= main_i 104) (< 25 main_n))} assume !(i <= n * 4); {8923#false} is VALID [2019-02-27 12:56:55,583 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:56:55,583 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:56:57,767 INFO L273 TraceCheckUtils]: 52: Hoare triple {9138#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {8923#false} is VALID [2019-02-27 12:56:57,768 INFO L273 TraceCheckUtils]: 51: Hoare triple {9142#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {9138#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:56:57,769 INFO L273 TraceCheckUtils]: 50: Hoare triple {9146#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {9142#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:56:57,770 INFO L273 TraceCheckUtils]: 49: Hoare triple {9150#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {9146#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:56:57,770 INFO L273 TraceCheckUtils]: 48: Hoare triple {9150#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {9150#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:56:57,771 INFO L273 TraceCheckUtils]: 47: Hoare triple {9157#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {9150#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:56:57,772 INFO L273 TraceCheckUtils]: 46: Hoare triple {9157#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {9157#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:56:57,773 INFO L273 TraceCheckUtils]: 45: Hoare triple {9164#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {9157#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:56:57,773 INFO L273 TraceCheckUtils]: 44: Hoare triple {9164#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {9164#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:56:57,774 INFO L273 TraceCheckUtils]: 43: Hoare triple {9171#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {9164#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:56:57,775 INFO L273 TraceCheckUtils]: 42: Hoare triple {9171#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {9171#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:56:57,776 INFO L273 TraceCheckUtils]: 41: Hoare triple {9178#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9171#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:56:57,776 INFO L273 TraceCheckUtils]: 40: Hoare triple {9178#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {9178#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:56:57,777 INFO L273 TraceCheckUtils]: 39: Hoare triple {9185#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {9178#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:56:57,778 INFO L273 TraceCheckUtils]: 38: Hoare triple {9185#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {9185#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:56:57,779 INFO L273 TraceCheckUtils]: 37: Hoare triple {9192#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9185#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:56:57,780 INFO L273 TraceCheckUtils]: 36: Hoare triple {9192#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {9192#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:56:57,781 INFO L273 TraceCheckUtils]: 35: Hoare triple {9199#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9192#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:56:57,781 INFO L273 TraceCheckUtils]: 34: Hoare triple {9199#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {9199#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:56:57,782 INFO L273 TraceCheckUtils]: 33: Hoare triple {9206#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9199#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:56:57,783 INFO L273 TraceCheckUtils]: 32: Hoare triple {9206#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {9206#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:56:57,784 INFO L273 TraceCheckUtils]: 31: Hoare triple {9213#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {9206#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:56:57,784 INFO L273 TraceCheckUtils]: 30: Hoare triple {9213#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {9213#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:56:57,785 INFO L273 TraceCheckUtils]: 29: Hoare triple {9220#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9213#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:56:57,786 INFO L273 TraceCheckUtils]: 28: Hoare triple {9220#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {9220#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:56:57,787 INFO L273 TraceCheckUtils]: 27: Hoare triple {9227#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9220#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:56:57,788 INFO L273 TraceCheckUtils]: 26: Hoare triple {9227#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {9227#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:56:57,789 INFO L273 TraceCheckUtils]: 25: Hoare triple {9234#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {9227#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:56:57,789 INFO L273 TraceCheckUtils]: 24: Hoare triple {9234#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {9234#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:56:57,790 INFO L273 TraceCheckUtils]: 23: Hoare triple {9241#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9234#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:56:57,791 INFO L273 TraceCheckUtils]: 22: Hoare triple {9241#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {9241#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:56:57,792 INFO L273 TraceCheckUtils]: 21: Hoare triple {9248#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {9241#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:56:57,792 INFO L273 TraceCheckUtils]: 20: Hoare triple {9248#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {9248#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:56:57,793 INFO L273 TraceCheckUtils]: 19: Hoare triple {9255#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {9248#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:56:57,794 INFO L273 TraceCheckUtils]: 18: Hoare triple {9255#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {9255#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:56:57,795 INFO L273 TraceCheckUtils]: 17: Hoare triple {9262#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {9255#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:56:57,795 INFO L273 TraceCheckUtils]: 16: Hoare triple {9262#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {9262#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:56:57,797 INFO L273 TraceCheckUtils]: 15: Hoare triple {9269#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {9262#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:56:57,797 INFO L273 TraceCheckUtils]: 14: Hoare triple {9269#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {9269#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:56:57,798 INFO L273 TraceCheckUtils]: 13: Hoare triple {9276#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {9269#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:56:57,799 INFO L273 TraceCheckUtils]: 12: Hoare triple {9276#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {9276#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:56:57,800 INFO L273 TraceCheckUtils]: 11: Hoare triple {9283#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {9276#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:56:57,800 INFO L273 TraceCheckUtils]: 10: Hoare triple {9283#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {9283#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 12:56:57,801 INFO L273 TraceCheckUtils]: 9: Hoare triple {9290#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9283#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 12:56:57,802 INFO L273 TraceCheckUtils]: 8: Hoare triple {9290#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {9290#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 12:56:57,803 INFO L273 TraceCheckUtils]: 7: Hoare triple {9297#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9290#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 12:56:57,803 INFO L273 TraceCheckUtils]: 6: Hoare triple {9297#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {9297#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 12:56:57,804 INFO L273 TraceCheckUtils]: 5: Hoare triple {9304#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9297#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 12:56:57,805 INFO L273 TraceCheckUtils]: 4: Hoare triple {9304#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {9304#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 12:56:57,806 INFO L273 TraceCheckUtils]: 3: Hoare triple {9311#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {9304#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 12:56:57,807 INFO L273 TraceCheckUtils]: 2: Hoare triple {9311#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {9311#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 12:56:57,808 INFO L273 TraceCheckUtils]: 1: Hoare triple {9318#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9311#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 12:56:57,809 INFO L273 TraceCheckUtils]: 0: Hoare triple {8922#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {9318#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 12:56:57,820 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:56:57,838 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:56:57,838 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 83 [2019-02-27 12:56:57,839 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:56:57,839 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 53 [2019-02-27 12:56:57,839 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:56:57,839 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 57 states. [2019-02-27 12:56:57,964 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 105 edges. 105 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:56:57,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 57 states [2019-02-27 12:56:57,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2019-02-27 12:56:57,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=932, Invalid=6208, Unknown=0, NotChecked=0, Total=7140 [2019-02-27 12:56:57,966 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand 57 states. [2019-02-27 12:57:03,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:57:03,626 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2019-02-27 12:57:03,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-02-27 12:57:03,626 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 53 [2019-02-27 12:57:03,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:57:03,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-02-27 12:57:03,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 58 transitions. [2019-02-27 12:57:03,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-02-27 12:57:03,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 58 transitions. [2019-02-27 12:57:03,629 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 30 states and 58 transitions. [2019-02-27 12:57:03,719 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 58 edges. 58 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:57:03,720 INFO L225 Difference]: With dead ends: 58 [2019-02-27 12:57:03,720 INFO L226 Difference]: Without dead ends: 57 [2019-02-27 12:57:03,720 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1620 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=932, Invalid=6208, Unknown=0, NotChecked=0, Total=7140 [2019-02-27 12:57:03,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-02-27 12:57:03,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56. [2019-02-27 12:57:03,871 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:57:03,871 INFO L82 GeneralOperation]: Start isEquivalent. First operand 57 states. Second operand 56 states. [2019-02-27 12:57:03,871 INFO L74 IsIncluded]: Start isIncluded. First operand 57 states. Second operand 56 states. [2019-02-27 12:57:03,871 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 56 states. [2019-02-27 12:57:03,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:57:03,872 INFO L93 Difference]: Finished difference Result 57 states and 57 transitions. [2019-02-27 12:57:03,872 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 57 transitions. [2019-02-27 12:57:03,872 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:57:03,872 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:57:03,872 INFO L74 IsIncluded]: Start isIncluded. First operand 56 states. Second operand 57 states. [2019-02-27 12:57:03,872 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 57 states. [2019-02-27 12:57:03,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:57:03,873 INFO L93 Difference]: Finished difference Result 57 states and 57 transitions. [2019-02-27 12:57:03,873 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 57 transitions. [2019-02-27 12:57:03,873 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:57:03,873 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:57:03,873 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:57:03,873 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:57:03,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-02-27 12:57:03,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2019-02-27 12:57:03,874 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 53 [2019-02-27 12:57:03,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:57:03,874 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2019-02-27 12:57:03,874 INFO L481 AbstractCegarLoop]: Interpolant automaton has 57 states. [2019-02-27 12:57:03,874 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2019-02-27 12:57:03,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-02-27 12:57:03,875 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:57:03,875 INFO L402 BasicCegarLoop]: trace histogram [27, 26, 1, 1] [2019-02-27 12:57:03,875 INFO L423 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:57:03,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:57:03,875 INFO L82 PathProgramCache]: Analyzing trace with hash -735811308, now seen corresponding path program 26 times [2019-02-27 12:57:03,875 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:57:03,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:57:03,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 12:57:03,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:57:03,876 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:57:03,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:57:04,235 WARN L181 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-02-27 12:57:05,424 INFO L273 TraceCheckUtils]: 0: Hoare triple {9604#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {9606#(and (or (<= main_n 26) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-02-27 12:57:05,425 INFO L273 TraceCheckUtils]: 1: Hoare triple {9606#(and (or (<= main_n 26) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume a[i] != 23;i := i + 4; {9607#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 26 main_n)) (or (<= main_n 26) (<= main_i 4)))} is VALID [2019-02-27 12:57:05,426 INFO L273 TraceCheckUtils]: 2: Hoare triple {9607#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 26 main_n)) (or (<= main_n 26) (<= main_i 4)))} assume i <= n * 4; {9607#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 26 main_n)) (or (<= main_n 26) (<= main_i 4)))} is VALID [2019-02-27 12:57:05,427 INFO L273 TraceCheckUtils]: 3: Hoare triple {9607#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 26 main_n)) (or (<= main_n 26) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {9608#(and (or (<= main_i 8) (<= main_n 26)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-02-27 12:57:05,428 INFO L273 TraceCheckUtils]: 4: Hoare triple {9608#(and (or (<= main_i 8) (<= main_n 26)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume i <= n * 4; {9608#(and (or (<= main_i 8) (<= main_n 26)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-02-27 12:57:05,429 INFO L273 TraceCheckUtils]: 5: Hoare triple {9608#(and (or (<= main_i 8) (<= main_n 26)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume a[i] != 23;i := i + 4; {9609#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 12)))} is VALID [2019-02-27 12:57:05,430 INFO L273 TraceCheckUtils]: 6: Hoare triple {9609#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 12)))} assume i <= n * 4; {9609#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 12)))} is VALID [2019-02-27 12:57:05,431 INFO L273 TraceCheckUtils]: 7: Hoare triple {9609#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {9610#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 16)))} is VALID [2019-02-27 12:57:05,432 INFO L273 TraceCheckUtils]: 8: Hoare triple {9610#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 16)))} assume i <= n * 4; {9610#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 16)))} is VALID [2019-02-27 12:57:05,433 INFO L273 TraceCheckUtils]: 9: Hoare triple {9610#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {9611#(and (or (< 26 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 26) (<= main_i 20)))} is VALID [2019-02-27 12:57:05,434 INFO L273 TraceCheckUtils]: 10: Hoare triple {9611#(and (or (< 26 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 26) (<= main_i 20)))} assume i <= n * 4; {9611#(and (or (< 26 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 26) (<= main_i 20)))} is VALID [2019-02-27 12:57:05,435 INFO L273 TraceCheckUtils]: 11: Hoare triple {9611#(and (or (< 26 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 26) (<= main_i 20)))} assume a[i] != 23;i := i + 4; {9612#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 24)))} is VALID [2019-02-27 12:57:05,435 INFO L273 TraceCheckUtils]: 12: Hoare triple {9612#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 24)))} assume i <= n * 4; {9612#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 24)))} is VALID [2019-02-27 12:57:05,436 INFO L273 TraceCheckUtils]: 13: Hoare triple {9612#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 24)))} assume a[i] != 23;i := i + 4; {9613#(and (or (<= main_n 26) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-02-27 12:57:05,437 INFO L273 TraceCheckUtils]: 14: Hoare triple {9613#(and (or (<= main_n 26) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume i <= n * 4; {9613#(and (or (<= main_n 26) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-02-27 12:57:05,438 INFO L273 TraceCheckUtils]: 15: Hoare triple {9613#(and (or (<= main_n 26) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume a[i] != 23;i := i + 4; {9614#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 32) (<= main_n 26)))} is VALID [2019-02-27 12:57:05,439 INFO L273 TraceCheckUtils]: 16: Hoare triple {9614#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 32) (<= main_n 26)))} assume i <= n * 4; {9614#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 32) (<= main_n 26)))} is VALID [2019-02-27 12:57:05,440 INFO L273 TraceCheckUtils]: 17: Hoare triple {9614#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 32) (<= main_n 26)))} assume a[i] != 23;i := i + 4; {9615#(and (or (<= main_i 36) (<= main_n 26)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 26 main_n)))} is VALID [2019-02-27 12:57:05,441 INFO L273 TraceCheckUtils]: 18: Hoare triple {9615#(and (or (<= main_i 36) (<= main_n 26)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 26 main_n)))} assume i <= n * 4; {9615#(and (or (<= main_i 36) (<= main_n 26)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 26 main_n)))} is VALID [2019-02-27 12:57:05,442 INFO L273 TraceCheckUtils]: 19: Hoare triple {9615#(and (or (<= main_i 36) (<= main_n 26)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 26 main_n)))} assume a[i] != 23;i := i + 4; {9616#(and (or (< 26 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 26)))} is VALID [2019-02-27 12:57:05,443 INFO L273 TraceCheckUtils]: 20: Hoare triple {9616#(and (or (< 26 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 26)))} assume i <= n * 4; {9616#(and (or (< 26 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 26)))} is VALID [2019-02-27 12:57:05,444 INFO L273 TraceCheckUtils]: 21: Hoare triple {9616#(and (or (< 26 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 26)))} assume a[i] != 23;i := i + 4; {9617#(and (or (<= main_n 26) (<= main_i 44)) (or (< 26 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:57:05,445 INFO L273 TraceCheckUtils]: 22: Hoare triple {9617#(and (or (<= main_n 26) (<= main_i 44)) (or (< 26 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {9617#(and (or (<= main_n 26) (<= main_i 44)) (or (< 26 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:57:05,446 INFO L273 TraceCheckUtils]: 23: Hoare triple {9617#(and (or (<= main_n 26) (<= main_i 44)) (or (< 26 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {9618#(and (or (<= main_n 26) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-02-27 12:57:05,447 INFO L273 TraceCheckUtils]: 24: Hoare triple {9618#(and (or (<= main_n 26) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume i <= n * 4; {9618#(and (or (<= main_n 26) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-02-27 12:57:05,448 INFO L273 TraceCheckUtils]: 25: Hoare triple {9618#(and (or (<= main_n 26) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume a[i] != 23;i := i + 4; {9619#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 52) (<= main_n 26)))} is VALID [2019-02-27 12:57:05,449 INFO L273 TraceCheckUtils]: 26: Hoare triple {9619#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 52) (<= main_n 26)))} assume i <= n * 4; {9619#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 52) (<= main_n 26)))} is VALID [2019-02-27 12:57:05,450 INFO L273 TraceCheckUtils]: 27: Hoare triple {9619#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 52) (<= main_n 26)))} assume a[i] != 23;i := i + 4; {9620#(and (or (<= main_n 26) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-02-27 12:57:05,451 INFO L273 TraceCheckUtils]: 28: Hoare triple {9620#(and (or (<= main_n 26) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume i <= n * 4; {9620#(and (or (<= main_n 26) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-02-27 12:57:05,452 INFO L273 TraceCheckUtils]: 29: Hoare triple {9620#(and (or (<= main_n 26) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume a[i] != 23;i := i + 4; {9621#(and (or (< 26 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 26) (<= main_i 60)))} is VALID [2019-02-27 12:57:05,452 INFO L273 TraceCheckUtils]: 30: Hoare triple {9621#(and (or (< 26 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 26) (<= main_i 60)))} assume i <= n * 4; {9621#(and (or (< 26 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 26) (<= main_i 60)))} is VALID [2019-02-27 12:57:05,453 INFO L273 TraceCheckUtils]: 31: Hoare triple {9621#(and (or (< 26 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 26) (<= main_i 60)))} assume a[i] != 23;i := i + 4; {9622#(and (or (<= main_n 26) (<= main_i 64)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-02-27 12:57:05,454 INFO L273 TraceCheckUtils]: 32: Hoare triple {9622#(and (or (<= main_n 26) (<= main_i 64)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume i <= n * 4; {9622#(and (or (<= main_n 26) (<= main_i 64)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-02-27 12:57:05,455 INFO L273 TraceCheckUtils]: 33: Hoare triple {9622#(and (or (<= main_n 26) (<= main_i 64)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume a[i] != 23;i := i + 4; {9623#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 68)))} is VALID [2019-02-27 12:57:05,456 INFO L273 TraceCheckUtils]: 34: Hoare triple {9623#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 68)))} assume i <= n * 4; {9623#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 68)))} is VALID [2019-02-27 12:57:05,457 INFO L273 TraceCheckUtils]: 35: Hoare triple {9623#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 68)))} assume a[i] != 23;i := i + 4; {9624#(and (or (<= main_n 26) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-02-27 12:57:05,458 INFO L273 TraceCheckUtils]: 36: Hoare triple {9624#(and (or (<= main_n 26) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume i <= n * 4; {9624#(and (or (<= main_n 26) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-02-27 12:57:05,459 INFO L273 TraceCheckUtils]: 37: Hoare triple {9624#(and (or (<= main_n 26) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume a[i] != 23;i := i + 4; {9625#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 76) (<= main_n 26)))} is VALID [2019-02-27 12:57:05,460 INFO L273 TraceCheckUtils]: 38: Hoare triple {9625#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 76) (<= main_n 26)))} assume i <= n * 4; {9625#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 76) (<= main_n 26)))} is VALID [2019-02-27 12:57:05,461 INFO L273 TraceCheckUtils]: 39: Hoare triple {9625#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 76) (<= main_n 26)))} assume a[i] != 23;i := i + 4; {9626#(and (or (<= main_n 26) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-02-27 12:57:05,462 INFO L273 TraceCheckUtils]: 40: Hoare triple {9626#(and (or (<= main_n 26) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume i <= n * 4; {9626#(and (or (<= main_n 26) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-02-27 12:57:05,463 INFO L273 TraceCheckUtils]: 41: Hoare triple {9626#(and (or (<= main_n 26) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume a[i] != 23;i := i + 4; {9627#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 26 main_n)) (or (<= main_i 84) (<= main_n 26)))} is VALID [2019-02-27 12:57:05,464 INFO L273 TraceCheckUtils]: 42: Hoare triple {9627#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 26 main_n)) (or (<= main_i 84) (<= main_n 26)))} assume i <= n * 4; {9627#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 26 main_n)) (or (<= main_i 84) (<= main_n 26)))} is VALID [2019-02-27 12:57:05,465 INFO L273 TraceCheckUtils]: 43: Hoare triple {9627#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 26 main_n)) (or (<= main_i 84) (<= main_n 26)))} assume a[i] != 23;i := i + 4; {9628#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 88) (<= main_n 26)))} is VALID [2019-02-27 12:57:05,466 INFO L273 TraceCheckUtils]: 44: Hoare triple {9628#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 88) (<= main_n 26)))} assume i <= n * 4; {9628#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 88) (<= main_n 26)))} is VALID [2019-02-27 12:57:05,467 INFO L273 TraceCheckUtils]: 45: Hoare triple {9628#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 88) (<= main_n 26)))} assume a[i] != 23;i := i + 4; {9629#(and (or (<= main_i 92) (<= main_n 26)) (or (< 26 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:57:05,468 INFO L273 TraceCheckUtils]: 46: Hoare triple {9629#(and (or (<= main_i 92) (<= main_n 26)) (or (< 26 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {9629#(and (or (<= main_i 92) (<= main_n 26)) (or (< 26 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:57:05,469 INFO L273 TraceCheckUtils]: 47: Hoare triple {9629#(and (or (<= main_i 92) (<= main_n 26)) (or (< 26 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {9630#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 96) (<= main_n 26)))} is VALID [2019-02-27 12:57:05,470 INFO L273 TraceCheckUtils]: 48: Hoare triple {9630#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 96) (<= main_n 26)))} assume i <= n * 4; {9630#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 96) (<= main_n 26)))} is VALID [2019-02-27 12:57:05,471 INFO L273 TraceCheckUtils]: 49: Hoare triple {9630#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 96) (<= main_n 26)))} assume a[i] != 23;i := i + 4; {9631#(and (or (<= main_i 100) (<= main_n 26)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-02-27 12:57:05,472 INFO L273 TraceCheckUtils]: 50: Hoare triple {9631#(and (or (<= main_i 100) (<= main_n 26)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume i <= n * 4; {9631#(and (or (<= main_i 100) (<= main_n 26)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2019-02-27 12:57:05,473 INFO L273 TraceCheckUtils]: 51: Hoare triple {9631#(and (or (<= main_i 100) (<= main_n 26)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume a[i] != 23;i := i + 4; {9632#(and (or (<= main_i 104) (<= main_n 26)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 26 main_n)))} is VALID [2019-02-27 12:57:05,474 INFO L273 TraceCheckUtils]: 52: Hoare triple {9632#(and (or (<= main_i 104) (<= main_n 26)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 26 main_n)))} assume i <= n * 4; {9633#(and (<= main_i 104) (or (< 26 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} is VALID [2019-02-27 12:57:05,475 INFO L273 TraceCheckUtils]: 53: Hoare triple {9633#(and (<= main_i 104) (or (< 26 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} assume a[i] != 23;i := i + 4; {9634#(and (< 26 main_n) (<= main_i 108))} is VALID [2019-02-27 12:57:05,476 INFO L273 TraceCheckUtils]: 54: Hoare triple {9634#(and (< 26 main_n) (<= main_i 108))} assume !(i <= n * 4); {9605#false} is VALID [2019-02-27 12:57:05,491 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 0 proven. 702 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:57:05,491 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:57:05,491 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:57:05,491 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:57:05,491 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:57:05,491 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:57:05,492 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:57:05,501 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-27 12:57:05,502 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-27 12:57:05,533 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2019-02-27 12:57:05,533 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 12:57:05,535 WARN L254 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 59 conjunts are in the unsatisfiable core [2019-02-27 12:57:05,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:57:05,543 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:57:05,568 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:57:05,569 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:57:05,574 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:57:05,574 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:57:05,577 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:57:05,577 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_30]. (and (= (store v_main_a_30 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-27 12:57:05,577 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:57:06,912 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:57:06,915 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:57:06,919 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:57:06,919 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:57:06,922 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:57:06,922 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= 23 (select main_a 104))) (<= 104 .cse0) (= 23 (select main_a .cse0)) (<= main_i 108))) [2019-02-27 12:57:06,922 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 104 .cse0) (not (= 104 .cse0)) (<= main_i 108))) [2019-02-27 12:57:06,957 INFO L273 TraceCheckUtils]: 0: Hoare triple {9604#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {9638#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,958 INFO L273 TraceCheckUtils]: 1: Hoare triple {9638#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9642#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:57:06,958 INFO L273 TraceCheckUtils]: 2: Hoare triple {9642#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {9642#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:57:06,959 INFO L273 TraceCheckUtils]: 3: Hoare triple {9642#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {9649#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,959 INFO L273 TraceCheckUtils]: 4: Hoare triple {9649#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9649#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,960 INFO L273 TraceCheckUtils]: 5: Hoare triple {9649#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9656#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:57:06,960 INFO L273 TraceCheckUtils]: 6: Hoare triple {9656#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {9656#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:57:06,961 INFO L273 TraceCheckUtils]: 7: Hoare triple {9656#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {9663#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,961 INFO L273 TraceCheckUtils]: 8: Hoare triple {9663#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9663#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,962 INFO L273 TraceCheckUtils]: 9: Hoare triple {9663#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9670#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,963 INFO L273 TraceCheckUtils]: 10: Hoare triple {9670#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9670#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,963 INFO L273 TraceCheckUtils]: 11: Hoare triple {9670#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9677#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,964 INFO L273 TraceCheckUtils]: 12: Hoare triple {9677#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9677#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,965 INFO L273 TraceCheckUtils]: 13: Hoare triple {9677#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9684#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,965 INFO L273 TraceCheckUtils]: 14: Hoare triple {9684#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9684#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,966 INFO L273 TraceCheckUtils]: 15: Hoare triple {9684#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9691#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,967 INFO L273 TraceCheckUtils]: 16: Hoare triple {9691#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9691#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,967 INFO L273 TraceCheckUtils]: 17: Hoare triple {9691#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9698#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,968 INFO L273 TraceCheckUtils]: 18: Hoare triple {9698#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9698#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,969 INFO L273 TraceCheckUtils]: 19: Hoare triple {9698#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9705#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,969 INFO L273 TraceCheckUtils]: 20: Hoare triple {9705#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9705#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,970 INFO L273 TraceCheckUtils]: 21: Hoare triple {9705#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9712#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,971 INFO L273 TraceCheckUtils]: 22: Hoare triple {9712#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9712#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,972 INFO L273 TraceCheckUtils]: 23: Hoare triple {9712#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9719#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,972 INFO L273 TraceCheckUtils]: 24: Hoare triple {9719#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9719#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,973 INFO L273 TraceCheckUtils]: 25: Hoare triple {9719#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9726#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,974 INFO L273 TraceCheckUtils]: 26: Hoare triple {9726#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9726#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,974 INFO L273 TraceCheckUtils]: 27: Hoare triple {9726#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9733#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,975 INFO L273 TraceCheckUtils]: 28: Hoare triple {9733#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9733#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,976 INFO L273 TraceCheckUtils]: 29: Hoare triple {9733#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9740#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,976 INFO L273 TraceCheckUtils]: 30: Hoare triple {9740#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9740#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,977 INFO L273 TraceCheckUtils]: 31: Hoare triple {9740#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9747#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,978 INFO L273 TraceCheckUtils]: 32: Hoare triple {9747#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9747#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,978 INFO L273 TraceCheckUtils]: 33: Hoare triple {9747#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9754#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,979 INFO L273 TraceCheckUtils]: 34: Hoare triple {9754#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9754#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,980 INFO L273 TraceCheckUtils]: 35: Hoare triple {9754#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9761#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,980 INFO L273 TraceCheckUtils]: 36: Hoare triple {9761#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9761#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,981 INFO L273 TraceCheckUtils]: 37: Hoare triple {9761#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9768#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,982 INFO L273 TraceCheckUtils]: 38: Hoare triple {9768#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9768#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,983 INFO L273 TraceCheckUtils]: 39: Hoare triple {9768#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9775#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:57:06,983 INFO L273 TraceCheckUtils]: 40: Hoare triple {9775#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {9775#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:57:06,984 INFO L273 TraceCheckUtils]: 41: Hoare triple {9775#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {9782#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,985 INFO L273 TraceCheckUtils]: 42: Hoare triple {9782#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9782#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,985 INFO L273 TraceCheckUtils]: 43: Hoare triple {9782#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9789#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,986 INFO L273 TraceCheckUtils]: 44: Hoare triple {9789#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9789#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,987 INFO L273 TraceCheckUtils]: 45: Hoare triple {9789#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9796#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,987 INFO L273 TraceCheckUtils]: 46: Hoare triple {9796#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9796#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,988 INFO L273 TraceCheckUtils]: 47: Hoare triple {9796#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9803#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,989 INFO L273 TraceCheckUtils]: 48: Hoare triple {9803#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9803#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,990 INFO L273 TraceCheckUtils]: 49: Hoare triple {9803#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9810#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,990 INFO L273 TraceCheckUtils]: 50: Hoare triple {9810#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9810#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,991 INFO L273 TraceCheckUtils]: 51: Hoare triple {9810#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9817#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,992 INFO L273 TraceCheckUtils]: 52: Hoare triple {9817#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9821#(and (<= main_i (* 4 main_n)) (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:06,993 INFO L273 TraceCheckUtils]: 53: Hoare triple {9821#(and (<= main_i (* 4 main_n)) (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9634#(and (< 26 main_n) (<= main_i 108))} is VALID [2019-02-27 12:57:06,993 INFO L273 TraceCheckUtils]: 54: Hoare triple {9634#(and (< 26 main_n) (<= main_i 108))} assume !(i <= n * 4); {9605#false} is VALID [2019-02-27 12:57:07,001 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 0 proven. 702 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:57:07,001 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:57:09,537 INFO L273 TraceCheckUtils]: 54: Hoare triple {9828#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {9605#false} is VALID [2019-02-27 12:57:09,538 INFO L273 TraceCheckUtils]: 53: Hoare triple {9832#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {9828#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:57:09,538 INFO L273 TraceCheckUtils]: 52: Hoare triple {9836#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {9832#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:57:09,539 INFO L273 TraceCheckUtils]: 51: Hoare triple {9840#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {9836#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:57:09,539 INFO L273 TraceCheckUtils]: 50: Hoare triple {9840#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {9840#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:57:09,540 INFO L273 TraceCheckUtils]: 49: Hoare triple {9847#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {9840#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:57:09,541 INFO L273 TraceCheckUtils]: 48: Hoare triple {9847#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {9847#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:57:09,542 INFO L273 TraceCheckUtils]: 47: Hoare triple {9854#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {9847#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:57:09,542 INFO L273 TraceCheckUtils]: 46: Hoare triple {9854#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {9854#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:57:09,544 INFO L273 TraceCheckUtils]: 45: Hoare triple {9861#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {9854#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:57:09,544 INFO L273 TraceCheckUtils]: 44: Hoare triple {9861#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {9861#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:57:09,545 INFO L273 TraceCheckUtils]: 43: Hoare triple {9868#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9861#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:57:09,546 INFO L273 TraceCheckUtils]: 42: Hoare triple {9868#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {9868#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:57:09,547 INFO L273 TraceCheckUtils]: 41: Hoare triple {9875#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {9868#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:57:09,548 INFO L273 TraceCheckUtils]: 40: Hoare triple {9875#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {9875#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:57:09,549 INFO L273 TraceCheckUtils]: 39: Hoare triple {9882#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9875#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:57:09,549 INFO L273 TraceCheckUtils]: 38: Hoare triple {9882#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {9882#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:57:09,550 INFO L273 TraceCheckUtils]: 37: Hoare triple {9889#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9882#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:57:09,551 INFO L273 TraceCheckUtils]: 36: Hoare triple {9889#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {9889#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:57:09,552 INFO L273 TraceCheckUtils]: 35: Hoare triple {9896#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9889#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:57:09,553 INFO L273 TraceCheckUtils]: 34: Hoare triple {9896#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {9896#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:57:09,554 INFO L273 TraceCheckUtils]: 33: Hoare triple {9903#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {9896#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:57:09,554 INFO L273 TraceCheckUtils]: 32: Hoare triple {9903#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {9903#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:57:09,556 INFO L273 TraceCheckUtils]: 31: Hoare triple {9910#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9903#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:57:09,556 INFO L273 TraceCheckUtils]: 30: Hoare triple {9910#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {9910#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:57:09,557 INFO L273 TraceCheckUtils]: 29: Hoare triple {9917#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9910#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:57:09,558 INFO L273 TraceCheckUtils]: 28: Hoare triple {9917#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {9917#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:57:09,559 INFO L273 TraceCheckUtils]: 27: Hoare triple {9924#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {9917#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:57:09,560 INFO L273 TraceCheckUtils]: 26: Hoare triple {9924#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {9924#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:57:09,561 INFO L273 TraceCheckUtils]: 25: Hoare triple {9931#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9924#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:57:09,561 INFO L273 TraceCheckUtils]: 24: Hoare triple {9931#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {9931#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:57:09,563 INFO L273 TraceCheckUtils]: 23: Hoare triple {9938#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {9931#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:57:09,563 INFO L273 TraceCheckUtils]: 22: Hoare triple {9938#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {9938#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:57:09,564 INFO L273 TraceCheckUtils]: 21: Hoare triple {9945#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {9938#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:57:09,565 INFO L273 TraceCheckUtils]: 20: Hoare triple {9945#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {9945#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:57:09,566 INFO L273 TraceCheckUtils]: 19: Hoare triple {9952#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {9945#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:57:09,567 INFO L273 TraceCheckUtils]: 18: Hoare triple {9952#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {9952#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:57:09,568 INFO L273 TraceCheckUtils]: 17: Hoare triple {9959#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {9952#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:57:09,568 INFO L273 TraceCheckUtils]: 16: Hoare triple {9959#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {9959#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:57:09,569 INFO L273 TraceCheckUtils]: 15: Hoare triple {9966#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {9959#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:57:09,570 INFO L273 TraceCheckUtils]: 14: Hoare triple {9966#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {9966#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:57:09,571 INFO L273 TraceCheckUtils]: 13: Hoare triple {9973#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {9966#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:57:09,572 INFO L273 TraceCheckUtils]: 12: Hoare triple {9973#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {9973#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 12:57:09,573 INFO L273 TraceCheckUtils]: 11: Hoare triple {9980#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9973#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 12:57:09,573 INFO L273 TraceCheckUtils]: 10: Hoare triple {9980#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {9980#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 12:57:09,575 INFO L273 TraceCheckUtils]: 9: Hoare triple {9987#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9980#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 12:57:09,575 INFO L273 TraceCheckUtils]: 8: Hoare triple {9987#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {9987#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 12:57:09,576 INFO L273 TraceCheckUtils]: 7: Hoare triple {9994#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9987#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 12:57:09,577 INFO L273 TraceCheckUtils]: 6: Hoare triple {9994#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {9994#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 12:57:09,578 INFO L273 TraceCheckUtils]: 5: Hoare triple {10001#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {9994#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 12:57:09,579 INFO L273 TraceCheckUtils]: 4: Hoare triple {10001#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {10001#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 12:57:09,580 INFO L273 TraceCheckUtils]: 3: Hoare triple {10008#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10001#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 12:57:09,580 INFO L273 TraceCheckUtils]: 2: Hoare triple {10008#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {10008#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 12:57:09,581 INFO L273 TraceCheckUtils]: 1: Hoare triple {10015#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {10008#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 12:57:09,583 INFO L273 TraceCheckUtils]: 0: Hoare triple {9604#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {10015#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 12:57:09,595 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 0 proven. 702 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:57:09,613 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:57:09,613 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29, 29] total 86 [2019-02-27 12:57:09,613 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:57:09,613 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 55 [2019-02-27 12:57:09,614 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:57:09,615 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 59 states. [2019-02-27 12:57:09,749 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 109 edges. 109 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:57:09,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 59 states [2019-02-27 12:57:09,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2019-02-27 12:57:09,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=994, Invalid=6662, Unknown=0, NotChecked=0, Total=7656 [2019-02-27 12:57:09,751 INFO L87 Difference]: Start difference. First operand 56 states and 56 transitions. Second operand 59 states. [2019-02-27 12:57:13,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:57:13,640 INFO L93 Difference]: Finished difference Result 60 states and 60 transitions. [2019-02-27 12:57:13,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-02-27 12:57:13,640 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 55 [2019-02-27 12:57:13,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:57:13,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-02-27 12:57:13,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 60 transitions. [2019-02-27 12:57:13,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-02-27 12:57:13,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 60 transitions. [2019-02-27 12:57:13,642 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 31 states and 60 transitions. [2019-02-27 12:57:13,703 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 60 edges. 60 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:57:13,704 INFO L225 Difference]: With dead ends: 60 [2019-02-27 12:57:13,704 INFO L226 Difference]: Without dead ends: 59 [2019-02-27 12:57:13,705 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1736 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=994, Invalid=6662, Unknown=0, NotChecked=0, Total=7656 [2019-02-27 12:57:13,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-02-27 12:57:13,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 58. [2019-02-27 12:57:13,756 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:57:13,756 INFO L82 GeneralOperation]: Start isEquivalent. First operand 59 states. Second operand 58 states. [2019-02-27 12:57:13,756 INFO L74 IsIncluded]: Start isIncluded. First operand 59 states. Second operand 58 states. [2019-02-27 12:57:13,756 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 58 states. [2019-02-27 12:57:13,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:57:13,757 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2019-02-27 12:57:13,757 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2019-02-27 12:57:13,758 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:57:13,758 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:57:13,758 INFO L74 IsIncluded]: Start isIncluded. First operand 58 states. Second operand 59 states. [2019-02-27 12:57:13,758 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 59 states. [2019-02-27 12:57:13,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:57:13,758 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2019-02-27 12:57:13,759 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2019-02-27 12:57:13,759 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:57:13,759 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:57:13,759 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:57:13,759 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:57:13,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-02-27 12:57:13,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2019-02-27 12:57:13,760 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 55 [2019-02-27 12:57:13,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:57:13,760 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2019-02-27 12:57:13,761 INFO L481 AbstractCegarLoop]: Interpolant automaton has 59 states. [2019-02-27 12:57:13,761 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2019-02-27 12:57:13,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-02-27 12:57:13,761 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:57:13,761 INFO L402 BasicCegarLoop]: trace histogram [28, 27, 1, 1] [2019-02-27 12:57:13,761 INFO L423 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:57:13,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:57:13,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1554937942, now seen corresponding path program 27 times [2019-02-27 12:57:13,762 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:57:13,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:57:13,763 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 12:57:13,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:57:13,763 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:57:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:57:15,399 INFO L273 TraceCheckUtils]: 0: Hoare triple {10311#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {10313#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 0) (<= main_n 27)))} is VALID [2019-02-27 12:57:15,401 INFO L273 TraceCheckUtils]: 1: Hoare triple {10313#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 0) (<= main_n 27)))} assume a[i] != 23;i := i + 4; {10314#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 27 main_n)) (or (<= main_n 27) (<= main_i 4)))} is VALID [2019-02-27 12:57:15,401 INFO L273 TraceCheckUtils]: 2: Hoare triple {10314#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 27 main_n)) (or (<= main_n 27) (<= main_i 4)))} assume i <= n * 4; {10314#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 27 main_n)) (or (<= main_n 27) (<= main_i 4)))} is VALID [2019-02-27 12:57:15,403 INFO L273 TraceCheckUtils]: 3: Hoare triple {10314#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 27 main_n)) (or (<= main_n 27) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {10315#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 8) (<= main_n 27)))} is VALID [2019-02-27 12:57:15,404 INFO L273 TraceCheckUtils]: 4: Hoare triple {10315#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 8) (<= main_n 27)))} assume i <= n * 4; {10315#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 8) (<= main_n 27)))} is VALID [2019-02-27 12:57:15,405 INFO L273 TraceCheckUtils]: 5: Hoare triple {10315#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 8) (<= main_n 27)))} assume a[i] != 23;i := i + 4; {10316#(and (or (<= main_n 27) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-02-27 12:57:15,405 INFO L273 TraceCheckUtils]: 6: Hoare triple {10316#(and (or (<= main_n 27) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10316#(and (or (<= main_n 27) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-02-27 12:57:15,407 INFO L273 TraceCheckUtils]: 7: Hoare triple {10316#(and (or (<= main_n 27) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10317#(and (or (<= main_n 27) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-02-27 12:57:15,409 INFO L273 TraceCheckUtils]: 8: Hoare triple {10317#(and (or (<= main_n 27) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10317#(and (or (<= main_n 27) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-02-27 12:57:15,411 INFO L273 TraceCheckUtils]: 9: Hoare triple {10317#(and (or (<= main_n 27) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10318#(and (or (< 27 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 27)))} is VALID [2019-02-27 12:57:15,411 INFO L273 TraceCheckUtils]: 10: Hoare triple {10318#(and (or (< 27 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 27)))} assume i <= n * 4; {10318#(and (or (< 27 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 27)))} is VALID [2019-02-27 12:57:15,413 INFO L273 TraceCheckUtils]: 11: Hoare triple {10318#(and (or (< 27 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 27)))} assume a[i] != 23;i := i + 4; {10319#(and (or (<= main_i 24) (<= main_n 27)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-02-27 12:57:15,413 INFO L273 TraceCheckUtils]: 12: Hoare triple {10319#(and (or (<= main_i 24) (<= main_n 27)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10319#(and (or (<= main_i 24) (<= main_n 27)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-02-27 12:57:15,415 INFO L273 TraceCheckUtils]: 13: Hoare triple {10319#(and (or (<= main_i 24) (<= main_n 27)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10320#(and (or (<= main_n 27) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-02-27 12:57:15,415 INFO L273 TraceCheckUtils]: 14: Hoare triple {10320#(and (or (<= main_n 27) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10320#(and (or (<= main_n 27) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-02-27 12:57:15,417 INFO L273 TraceCheckUtils]: 15: Hoare triple {10320#(and (or (<= main_n 27) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10321#(and (or (<= main_i 32) (<= main_n 27)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-02-27 12:57:15,417 INFO L273 TraceCheckUtils]: 16: Hoare triple {10321#(and (or (<= main_i 32) (<= main_n 27)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10321#(and (or (<= main_i 32) (<= main_n 27)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-02-27 12:57:15,419 INFO L273 TraceCheckUtils]: 17: Hoare triple {10321#(and (or (<= main_i 32) (<= main_n 27)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10322#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 27 main_n)) (or (<= main_i 36) (<= main_n 27)))} is VALID [2019-02-27 12:57:15,419 INFO L273 TraceCheckUtils]: 18: Hoare triple {10322#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 27 main_n)) (or (<= main_i 36) (<= main_n 27)))} assume i <= n * 4; {10322#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 27 main_n)) (or (<= main_i 36) (<= main_n 27)))} is VALID [2019-02-27 12:57:15,421 INFO L273 TraceCheckUtils]: 19: Hoare triple {10322#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 27 main_n)) (or (<= main_i 36) (<= main_n 27)))} assume a[i] != 23;i := i + 4; {10323#(and (or (<= main_i 40) (<= main_n 27)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-02-27 12:57:15,421 INFO L273 TraceCheckUtils]: 20: Hoare triple {10323#(and (or (<= main_i 40) (<= main_n 27)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10323#(and (or (<= main_i 40) (<= main_n 27)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-02-27 12:57:15,423 INFO L273 TraceCheckUtils]: 21: Hoare triple {10323#(and (or (<= main_i 40) (<= main_n 27)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10324#(and (or (< 27 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 27) (<= main_i 44)))} is VALID [2019-02-27 12:57:15,423 INFO L273 TraceCheckUtils]: 22: Hoare triple {10324#(and (or (< 27 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 27) (<= main_i 44)))} assume i <= n * 4; {10324#(and (or (< 27 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 27) (<= main_i 44)))} is VALID [2019-02-27 12:57:15,425 INFO L273 TraceCheckUtils]: 23: Hoare triple {10324#(and (or (< 27 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 27) (<= main_i 44)))} assume a[i] != 23;i := i + 4; {10325#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_n 27) (<= main_i 48)))} is VALID [2019-02-27 12:57:15,425 INFO L273 TraceCheckUtils]: 24: Hoare triple {10325#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_n 27) (<= main_i 48)))} assume i <= n * 4; {10325#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_n 27) (<= main_i 48)))} is VALID [2019-02-27 12:57:15,427 INFO L273 TraceCheckUtils]: 25: Hoare triple {10325#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_n 27) (<= main_i 48)))} assume a[i] != 23;i := i + 4; {10326#(and (or (<= main_i 52) (<= main_n 27)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-02-27 12:57:15,427 INFO L273 TraceCheckUtils]: 26: Hoare triple {10326#(and (or (<= main_i 52) (<= main_n 27)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10326#(and (or (<= main_i 52) (<= main_n 27)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-02-27 12:57:15,429 INFO L273 TraceCheckUtils]: 27: Hoare triple {10326#(and (or (<= main_i 52) (<= main_n 27)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10327#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 56) (<= main_n 27)))} is VALID [2019-02-27 12:57:15,429 INFO L273 TraceCheckUtils]: 28: Hoare triple {10327#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 56) (<= main_n 27)))} assume i <= n * 4; {10327#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 56) (<= main_n 27)))} is VALID [2019-02-27 12:57:15,431 INFO L273 TraceCheckUtils]: 29: Hoare triple {10327#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 56) (<= main_n 27)))} assume a[i] != 23;i := i + 4; {10328#(and (or (<= main_i 60) (<= main_n 27)) (or (< 27 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:57:15,431 INFO L273 TraceCheckUtils]: 30: Hoare triple {10328#(and (or (<= main_i 60) (<= main_n 27)) (or (< 27 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {10328#(and (or (<= main_i 60) (<= main_n 27)) (or (< 27 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:57:15,433 INFO L273 TraceCheckUtils]: 31: Hoare triple {10328#(and (or (<= main_i 60) (<= main_n 27)) (or (< 27 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {10329#(and (or (<= main_i 64) (<= main_n 27)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-02-27 12:57:15,433 INFO L273 TraceCheckUtils]: 32: Hoare triple {10329#(and (or (<= main_i 64) (<= main_n 27)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10329#(and (or (<= main_i 64) (<= main_n 27)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-02-27 12:57:15,434 INFO L273 TraceCheckUtils]: 33: Hoare triple {10329#(and (or (<= main_i 64) (<= main_n 27)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10330#(and (or (<= main_n 27) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-02-27 12:57:15,434 INFO L273 TraceCheckUtils]: 34: Hoare triple {10330#(and (or (<= main_n 27) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10330#(and (or (<= main_n 27) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-02-27 12:57:15,437 INFO L273 TraceCheckUtils]: 35: Hoare triple {10330#(and (or (<= main_n 27) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10331#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_n 27) (<= main_i 72)))} is VALID [2019-02-27 12:57:15,438 INFO L273 TraceCheckUtils]: 36: Hoare triple {10331#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_n 27) (<= main_i 72)))} assume i <= n * 4; {10331#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_n 27) (<= main_i 72)))} is VALID [2019-02-27 12:57:15,439 INFO L273 TraceCheckUtils]: 37: Hoare triple {10331#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_n 27) (<= main_i 72)))} assume a[i] != 23;i := i + 4; {10332#(and (or (<= main_i 76) (<= main_n 27)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-02-27 12:57:15,439 INFO L273 TraceCheckUtils]: 38: Hoare triple {10332#(and (or (<= main_i 76) (<= main_n 27)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10332#(and (or (<= main_i 76) (<= main_n 27)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-02-27 12:57:15,441 INFO L273 TraceCheckUtils]: 39: Hoare triple {10332#(and (or (<= main_i 76) (<= main_n 27)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10333#(and (or (<= main_n 27) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-02-27 12:57:15,442 INFO L273 TraceCheckUtils]: 40: Hoare triple {10333#(and (or (<= main_n 27) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10333#(and (or (<= main_n 27) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-02-27 12:57:15,443 INFO L273 TraceCheckUtils]: 41: Hoare triple {10333#(and (or (<= main_n 27) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10334#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 27 main_n)) (or (<= main_i 84) (<= main_n 27)))} is VALID [2019-02-27 12:57:15,443 INFO L273 TraceCheckUtils]: 42: Hoare triple {10334#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 27 main_n)) (or (<= main_i 84) (<= main_n 27)))} assume i <= n * 4; {10334#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 27 main_n)) (or (<= main_i 84) (<= main_n 27)))} is VALID [2019-02-27 12:57:15,445 INFO L273 TraceCheckUtils]: 43: Hoare triple {10334#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 27 main_n)) (or (<= main_i 84) (<= main_n 27)))} assume a[i] != 23;i := i + 4; {10335#(and (or (<= main_i 88) (<= main_n 27)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-02-27 12:57:15,446 INFO L273 TraceCheckUtils]: 44: Hoare triple {10335#(and (or (<= main_i 88) (<= main_n 27)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10335#(and (or (<= main_i 88) (<= main_n 27)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-02-27 12:57:15,447 INFO L273 TraceCheckUtils]: 45: Hoare triple {10335#(and (or (<= main_i 88) (<= main_n 27)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10336#(and (or (< 27 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 27)))} is VALID [2019-02-27 12:57:15,447 INFO L273 TraceCheckUtils]: 46: Hoare triple {10336#(and (or (< 27 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 27)))} assume i <= n * 4; {10336#(and (or (< 27 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 27)))} is VALID [2019-02-27 12:57:15,449 INFO L273 TraceCheckUtils]: 47: Hoare triple {10336#(and (or (< 27 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 27)))} assume a[i] != 23;i := i + 4; {10337#(and (or (<= main_i 96) (<= main_n 27)) (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-02-27 12:57:15,449 INFO L273 TraceCheckUtils]: 48: Hoare triple {10337#(and (or (<= main_i 96) (<= main_n 27)) (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10337#(and (or (<= main_i 96) (<= main_n 27)) (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2019-02-27 12:57:15,451 INFO L273 TraceCheckUtils]: 49: Hoare triple {10337#(and (or (<= main_i 96) (<= main_n 27)) (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10338#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 100) (<= main_n 27)))} is VALID [2019-02-27 12:57:15,452 INFO L273 TraceCheckUtils]: 50: Hoare triple {10338#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 100) (<= main_n 27)))} assume i <= n * 4; {10338#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 100) (<= main_n 27)))} is VALID [2019-02-27 12:57:15,453 INFO L273 TraceCheckUtils]: 51: Hoare triple {10338#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 100) (<= main_n 27)))} assume a[i] != 23;i := i + 4; {10339#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 104) (<= main_n 27)))} is VALID [2019-02-27 12:57:15,453 INFO L273 TraceCheckUtils]: 52: Hoare triple {10339#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 104) (<= main_n 27)))} assume i <= n * 4; {10339#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 104) (<= main_n 27)))} is VALID [2019-02-27 12:57:15,455 INFO L273 TraceCheckUtils]: 53: Hoare triple {10339#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 104) (<= main_n 27)))} assume a[i] != 23;i := i + 4; {10340#(and (or (<= main_n 27) (<= main_i 108)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 27 main_n)))} is VALID [2019-02-27 12:57:15,456 INFO L273 TraceCheckUtils]: 54: Hoare triple {10340#(and (or (<= main_n 27) (<= main_i 108)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 27 main_n)))} assume i <= n * 4; {10341#(and (or (< 27 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 108))} is VALID [2019-02-27 12:57:15,457 INFO L273 TraceCheckUtils]: 55: Hoare triple {10341#(and (or (< 27 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 108))} assume a[i] != 23;i := i + 4; {10342#(and (< 27 main_n) (<= main_i 112))} is VALID [2019-02-27 12:57:15,458 INFO L273 TraceCheckUtils]: 56: Hoare triple {10342#(and (< 27 main_n) (<= main_i 112))} assume !(i <= n * 4); {10312#false} is VALID [2019-02-27 12:57:15,474 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:57:15,474 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:57:15,474 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:57:15,474 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:57:15,474 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:57:15,474 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:57:15,474 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:57:15,485 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-27 12:57:15,485 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-27 12:57:15,500 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-27 12:57:15,500 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 12:57:15,501 WARN L254 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 61 conjunts are in the unsatisfiable core [2019-02-27 12:57:15,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:57:15,511 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:57:15,520 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:57:15,521 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:57:15,526 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:57:15,526 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:57:15,528 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:57:15,529 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_31]. (and (= (store v_main_a_31 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-27 12:57:15,529 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:57:17,020 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:57:17,022 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:57:17,028 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:57:17,028 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:57:17,030 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:57:17,031 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= 23 (select main_a 108))) (<= 108 .cse0) (= 23 (select main_a .cse0)) (<= main_i 112))) [2019-02-27 12:57:17,031 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 108 .cse0)) (<= 108 .cse0) (<= main_i 112))) [2019-02-27 12:57:17,067 INFO L273 TraceCheckUtils]: 0: Hoare triple {10311#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {10346#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,067 INFO L273 TraceCheckUtils]: 1: Hoare triple {10346#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10350#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:57:17,068 INFO L273 TraceCheckUtils]: 2: Hoare triple {10350#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {10350#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:57:17,068 INFO L273 TraceCheckUtils]: 3: Hoare triple {10350#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {10357#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,068 INFO L273 TraceCheckUtils]: 4: Hoare triple {10357#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10357#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,069 INFO L273 TraceCheckUtils]: 5: Hoare triple {10357#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10364#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:57:17,070 INFO L273 TraceCheckUtils]: 6: Hoare triple {10364#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {10364#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:57:17,070 INFO L273 TraceCheckUtils]: 7: Hoare triple {10364#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {10371#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,071 INFO L273 TraceCheckUtils]: 8: Hoare triple {10371#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10371#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,072 INFO L273 TraceCheckUtils]: 9: Hoare triple {10371#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10378#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,072 INFO L273 TraceCheckUtils]: 10: Hoare triple {10378#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10378#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,073 INFO L273 TraceCheckUtils]: 11: Hoare triple {10378#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10385#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,074 INFO L273 TraceCheckUtils]: 12: Hoare triple {10385#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10385#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,075 INFO L273 TraceCheckUtils]: 13: Hoare triple {10385#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10392#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,075 INFO L273 TraceCheckUtils]: 14: Hoare triple {10392#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10392#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,076 INFO L273 TraceCheckUtils]: 15: Hoare triple {10392#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10399#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,077 INFO L273 TraceCheckUtils]: 16: Hoare triple {10399#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10399#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,077 INFO L273 TraceCheckUtils]: 17: Hoare triple {10399#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10406#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,078 INFO L273 TraceCheckUtils]: 18: Hoare triple {10406#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10406#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,079 INFO L273 TraceCheckUtils]: 19: Hoare triple {10406#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10413#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,079 INFO L273 TraceCheckUtils]: 20: Hoare triple {10413#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10413#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,080 INFO L273 TraceCheckUtils]: 21: Hoare triple {10413#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10420#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,081 INFO L273 TraceCheckUtils]: 22: Hoare triple {10420#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10420#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,081 INFO L273 TraceCheckUtils]: 23: Hoare triple {10420#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10427#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,082 INFO L273 TraceCheckUtils]: 24: Hoare triple {10427#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10427#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,083 INFO L273 TraceCheckUtils]: 25: Hoare triple {10427#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10434#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,083 INFO L273 TraceCheckUtils]: 26: Hoare triple {10434#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10434#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,084 INFO L273 TraceCheckUtils]: 27: Hoare triple {10434#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10441#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,085 INFO L273 TraceCheckUtils]: 28: Hoare triple {10441#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10441#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,085 INFO L273 TraceCheckUtils]: 29: Hoare triple {10441#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10448#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,086 INFO L273 TraceCheckUtils]: 30: Hoare triple {10448#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10448#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,087 INFO L273 TraceCheckUtils]: 31: Hoare triple {10448#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10455#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,087 INFO L273 TraceCheckUtils]: 32: Hoare triple {10455#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10455#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,088 INFO L273 TraceCheckUtils]: 33: Hoare triple {10455#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10462#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,089 INFO L273 TraceCheckUtils]: 34: Hoare triple {10462#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10462#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,090 INFO L273 TraceCheckUtils]: 35: Hoare triple {10462#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10469#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,090 INFO L273 TraceCheckUtils]: 36: Hoare triple {10469#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10469#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,091 INFO L273 TraceCheckUtils]: 37: Hoare triple {10469#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10476#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,092 INFO L273 TraceCheckUtils]: 38: Hoare triple {10476#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10476#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,092 INFO L273 TraceCheckUtils]: 39: Hoare triple {10476#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10483#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:57:17,093 INFO L273 TraceCheckUtils]: 40: Hoare triple {10483#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {10483#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:57:17,094 INFO L273 TraceCheckUtils]: 41: Hoare triple {10483#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {10490#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,094 INFO L273 TraceCheckUtils]: 42: Hoare triple {10490#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10490#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,095 INFO L273 TraceCheckUtils]: 43: Hoare triple {10490#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10497#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,096 INFO L273 TraceCheckUtils]: 44: Hoare triple {10497#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10497#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,097 INFO L273 TraceCheckUtils]: 45: Hoare triple {10497#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10504#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,098 INFO L273 TraceCheckUtils]: 46: Hoare triple {10504#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10504#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,098 INFO L273 TraceCheckUtils]: 47: Hoare triple {10504#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10511#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,109 INFO L273 TraceCheckUtils]: 48: Hoare triple {10511#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10511#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,109 INFO L273 TraceCheckUtils]: 49: Hoare triple {10511#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10518#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,110 INFO L273 TraceCheckUtils]: 50: Hoare triple {10518#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10518#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,110 INFO L273 TraceCheckUtils]: 51: Hoare triple {10518#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10525#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,111 INFO L273 TraceCheckUtils]: 52: Hoare triple {10525#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10525#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,111 INFO L273 TraceCheckUtils]: 53: Hoare triple {10525#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10532#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,112 INFO L273 TraceCheckUtils]: 54: Hoare triple {10532#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10536#(and (= main_i 108) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:17,112 INFO L273 TraceCheckUtils]: 55: Hoare triple {10536#(and (= main_i 108) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10342#(and (< 27 main_n) (<= main_i 112))} is VALID [2019-02-27 12:57:17,113 INFO L273 TraceCheckUtils]: 56: Hoare triple {10342#(and (< 27 main_n) (<= main_i 112))} assume !(i <= n * 4); {10312#false} is VALID [2019-02-27 12:57:17,122 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:57:17,122 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:57:19,933 INFO L273 TraceCheckUtils]: 56: Hoare triple {10543#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {10312#false} is VALID [2019-02-27 12:57:19,934 INFO L273 TraceCheckUtils]: 55: Hoare triple {10547#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {10543#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:57:19,935 INFO L273 TraceCheckUtils]: 54: Hoare triple {10551#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {10547#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:57:19,936 INFO L273 TraceCheckUtils]: 53: Hoare triple {10555#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {10551#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:57:19,936 INFO L273 TraceCheckUtils]: 52: Hoare triple {10555#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {10555#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:57:19,937 INFO L273 TraceCheckUtils]: 51: Hoare triple {10562#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {10555#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:57:19,938 INFO L273 TraceCheckUtils]: 50: Hoare triple {10562#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {10562#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:57:19,939 INFO L273 TraceCheckUtils]: 49: Hoare triple {10569#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {10562#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:57:19,940 INFO L273 TraceCheckUtils]: 48: Hoare triple {10569#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {10569#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:57:19,941 INFO L273 TraceCheckUtils]: 47: Hoare triple {10576#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {10569#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:57:19,941 INFO L273 TraceCheckUtils]: 46: Hoare triple {10576#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {10576#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:57:19,942 INFO L273 TraceCheckUtils]: 45: Hoare triple {10583#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10576#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:57:19,943 INFO L273 TraceCheckUtils]: 44: Hoare triple {10583#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {10583#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:57:19,944 INFO L273 TraceCheckUtils]: 43: Hoare triple {10590#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {10583#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:57:19,944 INFO L273 TraceCheckUtils]: 42: Hoare triple {10590#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {10590#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:57:19,945 INFO L273 TraceCheckUtils]: 41: Hoare triple {10597#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10590#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:57:19,946 INFO L273 TraceCheckUtils]: 40: Hoare triple {10597#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {10597#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:57:19,947 INFO L273 TraceCheckUtils]: 39: Hoare triple {10604#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10597#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:57:19,947 INFO L273 TraceCheckUtils]: 38: Hoare triple {10604#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {10604#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:57:19,949 INFO L273 TraceCheckUtils]: 37: Hoare triple {10611#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10604#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:57:19,957 INFO L273 TraceCheckUtils]: 36: Hoare triple {10611#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {10611#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:57:19,958 INFO L273 TraceCheckUtils]: 35: Hoare triple {10618#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {10611#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:57:19,958 INFO L273 TraceCheckUtils]: 34: Hoare triple {10618#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {10618#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:57:19,959 INFO L273 TraceCheckUtils]: 33: Hoare triple {10625#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10618#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:57:19,959 INFO L273 TraceCheckUtils]: 32: Hoare triple {10625#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {10625#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:57:19,960 INFO L273 TraceCheckUtils]: 31: Hoare triple {10632#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10625#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:57:19,960 INFO L273 TraceCheckUtils]: 30: Hoare triple {10632#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {10632#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:57:19,961 INFO L273 TraceCheckUtils]: 29: Hoare triple {10639#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {10632#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:57:19,961 INFO L273 TraceCheckUtils]: 28: Hoare triple {10639#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {10639#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:57:19,962 INFO L273 TraceCheckUtils]: 27: Hoare triple {10646#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10639#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:57:19,963 INFO L273 TraceCheckUtils]: 26: Hoare triple {10646#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {10646#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:57:19,964 INFO L273 TraceCheckUtils]: 25: Hoare triple {10653#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {10646#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:57:19,964 INFO L273 TraceCheckUtils]: 24: Hoare triple {10653#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {10653#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:57:19,966 INFO L273 TraceCheckUtils]: 23: Hoare triple {10660#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {10653#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:57:19,966 INFO L273 TraceCheckUtils]: 22: Hoare triple {10660#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {10660#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:57:19,967 INFO L273 TraceCheckUtils]: 21: Hoare triple {10667#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {10660#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:57:19,968 INFO L273 TraceCheckUtils]: 20: Hoare triple {10667#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {10667#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:57:19,969 INFO L273 TraceCheckUtils]: 19: Hoare triple {10674#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {10667#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:57:19,969 INFO L273 TraceCheckUtils]: 18: Hoare triple {10674#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {10674#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:57:19,970 INFO L273 TraceCheckUtils]: 17: Hoare triple {10681#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {10674#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:57:19,971 INFO L273 TraceCheckUtils]: 16: Hoare triple {10681#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {10681#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:57:19,972 INFO L273 TraceCheckUtils]: 15: Hoare triple {10688#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {10681#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:57:19,972 INFO L273 TraceCheckUtils]: 14: Hoare triple {10688#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {10688#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 12:57:19,973 INFO L273 TraceCheckUtils]: 13: Hoare triple {10695#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10688#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 12:57:19,974 INFO L273 TraceCheckUtils]: 12: Hoare triple {10695#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {10695#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 12:57:19,975 INFO L273 TraceCheckUtils]: 11: Hoare triple {10702#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10695#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 12:57:19,976 INFO L273 TraceCheckUtils]: 10: Hoare triple {10702#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {10702#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 12:57:19,977 INFO L273 TraceCheckUtils]: 9: Hoare triple {10709#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10702#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 12:57:19,977 INFO L273 TraceCheckUtils]: 8: Hoare triple {10709#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {10709#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 12:57:19,978 INFO L273 TraceCheckUtils]: 7: Hoare triple {10716#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {10709#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 12:57:19,979 INFO L273 TraceCheckUtils]: 6: Hoare triple {10716#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {10716#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 12:57:19,980 INFO L273 TraceCheckUtils]: 5: Hoare triple {10723#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10716#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 12:57:19,980 INFO L273 TraceCheckUtils]: 4: Hoare triple {10723#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {10723#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 12:57:19,981 INFO L273 TraceCheckUtils]: 3: Hoare triple {10730#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {10723#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 12:57:19,982 INFO L273 TraceCheckUtils]: 2: Hoare triple {10730#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {10730#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 12:57:19,983 INFO L273 TraceCheckUtils]: 1: Hoare triple {10737#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {10730#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 12:57:19,984 INFO L273 TraceCheckUtils]: 0: Hoare triple {10311#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {10737#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 12:57:19,997 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:57:20,015 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:57:20,015 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30, 30] total 89 [2019-02-27 12:57:20,015 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:57:20,016 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 57 [2019-02-27 12:57:20,016 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:57:20,016 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 61 states. [2019-02-27 12:57:20,147 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 113 edges. 113 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:57:20,147 INFO L459 AbstractCegarLoop]: Interpolant automaton has 61 states [2019-02-27 12:57:20,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2019-02-27 12:57:20,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1058, Invalid=7132, Unknown=0, NotChecked=0, Total=8190 [2019-02-27 12:57:20,148 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand 61 states. [2019-02-27 12:57:26,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:57:26,344 INFO L93 Difference]: Finished difference Result 62 states and 62 transitions. [2019-02-27 12:57:26,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-02-27 12:57:26,344 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 57 [2019-02-27 12:57:26,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:57:26,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-02-27 12:57:26,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 62 transitions. [2019-02-27 12:57:26,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-02-27 12:57:26,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 62 transitions. [2019-02-27 12:57:26,347 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 32 states and 62 transitions. [2019-02-27 12:57:26,440 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 62 edges. 62 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:57:26,441 INFO L225 Difference]: With dead ends: 62 [2019-02-27 12:57:26,441 INFO L226 Difference]: Without dead ends: 61 [2019-02-27 12:57:26,442 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1856 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=1058, Invalid=7132, Unknown=0, NotChecked=0, Total=8190 [2019-02-27 12:57:26,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-02-27 12:57:26,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2019-02-27 12:57:26,574 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:57:26,574 INFO L82 GeneralOperation]: Start isEquivalent. First operand 61 states. Second operand 60 states. [2019-02-27 12:57:26,574 INFO L74 IsIncluded]: Start isIncluded. First operand 61 states. Second operand 60 states. [2019-02-27 12:57:26,575 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 60 states. [2019-02-27 12:57:26,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:57:26,576 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2019-02-27 12:57:26,576 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2019-02-27 12:57:26,576 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:57:26,577 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:57:26,577 INFO L74 IsIncluded]: Start isIncluded. First operand 60 states. Second operand 61 states. [2019-02-27 12:57:26,577 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 61 states. [2019-02-27 12:57:26,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:57:26,578 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2019-02-27 12:57:26,578 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2019-02-27 12:57:26,579 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:57:26,579 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:57:26,579 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:57:26,579 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:57:26,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2019-02-27 12:57:26,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 60 transitions. [2019-02-27 12:57:26,580 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 60 transitions. Word has length 57 [2019-02-27 12:57:26,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:57:26,580 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 60 transitions. [2019-02-27 12:57:26,580 INFO L481 AbstractCegarLoop]: Interpolant automaton has 61 states. [2019-02-27 12:57:26,580 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 60 transitions. [2019-02-27 12:57:26,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-02-27 12:57:26,581 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:57:26,581 INFO L402 BasicCegarLoop]: trace histogram [29, 28, 1, 1] [2019-02-27 12:57:26,581 INFO L423 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:57:26,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:57:26,582 INFO L82 PathProgramCache]: Analyzing trace with hash -353255656, now seen corresponding path program 28 times [2019-02-27 12:57:26,582 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:57:26,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:57:26,582 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 12:57:26,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:57:26,583 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:57:26,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:57:27,013 WARN L181 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-02-27 12:57:27,483 WARN L181 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2019-02-27 12:57:27,943 WARN L181 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-02-27 12:57:29,173 INFO L273 TraceCheckUtils]: 0: Hoare triple {11043#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {11045#(and (or (<= main_n 28) (<= main_i 0)) (or (<= 0 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,175 INFO L273 TraceCheckUtils]: 1: Hoare triple {11045#(and (or (<= main_n 28) (<= main_i 0)) (or (<= 0 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11046#(and (or (<= main_n 28) (<= main_i 4)) (or (< 28 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,176 INFO L273 TraceCheckUtils]: 2: Hoare triple {11046#(and (or (<= main_n 28) (<= main_i 4)) (or (< 28 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11046#(and (or (<= main_n 28) (<= main_i 4)) (or (< 28 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,177 INFO L273 TraceCheckUtils]: 3: Hoare triple {11046#(and (or (<= main_n 28) (<= main_i 4)) (or (< 28 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11047#(and (or (< 28 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,178 INFO L273 TraceCheckUtils]: 4: Hoare triple {11047#(and (or (< 28 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11047#(and (or (< 28 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,179 INFO L273 TraceCheckUtils]: 5: Hoare triple {11047#(and (or (< 28 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11048#(and (or (< 28 main_n) (<= 12 main_i)) (or (<= main_n 28) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,180 INFO L273 TraceCheckUtils]: 6: Hoare triple {11048#(and (or (< 28 main_n) (<= 12 main_i)) (or (<= main_n 28) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11048#(and (or (< 28 main_n) (<= 12 main_i)) (or (<= main_n 28) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,181 INFO L273 TraceCheckUtils]: 7: Hoare triple {11048#(and (or (< 28 main_n) (<= 12 main_i)) (or (<= main_n 28) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11049#(and (or (< 28 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 28) (<= main_i 16)))} is VALID [2019-02-27 12:57:29,181 INFO L273 TraceCheckUtils]: 8: Hoare triple {11049#(and (or (< 28 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 28) (<= main_i 16)))} assume i <= n * 4; {11049#(and (or (< 28 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 28) (<= main_i 16)))} is VALID [2019-02-27 12:57:29,183 INFO L273 TraceCheckUtils]: 9: Hoare triple {11049#(and (or (< 28 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 28) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {11050#(and (or (<= main_n 28) (<= main_i 20)) (or (< 28 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,183 INFO L273 TraceCheckUtils]: 10: Hoare triple {11050#(and (or (<= main_n 28) (<= main_i 20)) (or (< 28 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11050#(and (or (<= main_n 28) (<= main_i 20)) (or (< 28 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,185 INFO L273 TraceCheckUtils]: 11: Hoare triple {11050#(and (or (<= main_n 28) (<= main_i 20)) (or (< 28 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11051#(and (or (< 28 main_n) (<= 24 main_i)) (or (<= main_n 28) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,185 INFO L273 TraceCheckUtils]: 12: Hoare triple {11051#(and (or (< 28 main_n) (<= 24 main_i)) (or (<= main_n 28) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11051#(and (or (< 28 main_n) (<= 24 main_i)) (or (<= main_n 28) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,186 INFO L273 TraceCheckUtils]: 13: Hoare triple {11051#(and (or (< 28 main_n) (<= 24 main_i)) (or (<= main_n 28) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11052#(and (or (<= 28 main_i) (< 28 main_n)) (or (<= main_n 28) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,187 INFO L273 TraceCheckUtils]: 14: Hoare triple {11052#(and (or (<= 28 main_i) (< 28 main_n)) (or (<= main_n 28) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11052#(and (or (<= 28 main_i) (< 28 main_n)) (or (<= main_n 28) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,188 INFO L273 TraceCheckUtils]: 15: Hoare triple {11052#(and (or (<= 28 main_i) (< 28 main_n)) (or (<= main_n 28) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11053#(and (or (<= main_i 32) (<= main_n 28)) (or (<= 32 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,189 INFO L273 TraceCheckUtils]: 16: Hoare triple {11053#(and (or (<= main_i 32) (<= main_n 28)) (or (<= 32 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11053#(and (or (<= main_i 32) (<= main_n 28)) (or (<= 32 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,190 INFO L273 TraceCheckUtils]: 17: Hoare triple {11053#(and (or (<= main_i 32) (<= main_n 28)) (or (<= 32 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11054#(and (or (<= main_i 36) (<= main_n 28)) (or (< 28 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,191 INFO L273 TraceCheckUtils]: 18: Hoare triple {11054#(and (or (<= main_i 36) (<= main_n 28)) (or (< 28 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11054#(and (or (<= main_i 36) (<= main_n 28)) (or (< 28 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,192 INFO L273 TraceCheckUtils]: 19: Hoare triple {11054#(and (or (<= main_i 36) (<= main_n 28)) (or (< 28 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11055#(and (or (<= 40 main_i) (< 28 main_n)) (or (<= main_i 40) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,193 INFO L273 TraceCheckUtils]: 20: Hoare triple {11055#(and (or (<= 40 main_i) (< 28 main_n)) (or (<= main_i 40) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11055#(and (or (<= 40 main_i) (< 28 main_n)) (or (<= main_i 40) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,194 INFO L273 TraceCheckUtils]: 21: Hoare triple {11055#(and (or (<= 40 main_i) (< 28 main_n)) (or (<= main_i 40) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11056#(and (or (<= main_n 28) (<= main_i 44)) (or (<= 44 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,195 INFO L273 TraceCheckUtils]: 22: Hoare triple {11056#(and (or (<= main_n 28) (<= main_i 44)) (or (<= 44 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11056#(and (or (<= main_n 28) (<= main_i 44)) (or (<= 44 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,196 INFO L273 TraceCheckUtils]: 23: Hoare triple {11056#(and (or (<= main_n 28) (<= main_i 44)) (or (<= 44 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11057#(and (or (<= main_n 28) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 28 main_n)))} is VALID [2019-02-27 12:57:29,197 INFO L273 TraceCheckUtils]: 24: Hoare triple {11057#(and (or (<= main_n 28) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 28 main_n)))} assume i <= n * 4; {11057#(and (or (<= main_n 28) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 28 main_n)))} is VALID [2019-02-27 12:57:29,198 INFO L273 TraceCheckUtils]: 25: Hoare triple {11057#(and (or (<= main_n 28) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 28 main_n)))} assume a[i] != 23;i := i + 4; {11058#(and (= 23 (select main_a (* 4 main_n))) (or (< 28 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 28)))} is VALID [2019-02-27 12:57:29,199 INFO L273 TraceCheckUtils]: 26: Hoare triple {11058#(and (= 23 (select main_a (* 4 main_n))) (or (< 28 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 28)))} assume i <= n * 4; {11058#(and (= 23 (select main_a (* 4 main_n))) (or (< 28 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 28)))} is VALID [2019-02-27 12:57:29,200 INFO L273 TraceCheckUtils]: 27: Hoare triple {11058#(and (= 23 (select main_a (* 4 main_n))) (or (< 28 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 28)))} assume a[i] != 23;i := i + 4; {11059#(and (or (<= main_n 28) (<= main_i 56)) (or (< 28 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,201 INFO L273 TraceCheckUtils]: 28: Hoare triple {11059#(and (or (<= main_n 28) (<= main_i 56)) (or (< 28 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11059#(and (or (<= main_n 28) (<= main_i 56)) (or (< 28 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,202 INFO L273 TraceCheckUtils]: 29: Hoare triple {11059#(and (or (<= main_n 28) (<= main_i 56)) (or (< 28 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11060#(and (or (<= main_n 28) (<= main_i 60)) (or (< 28 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,203 INFO L273 TraceCheckUtils]: 30: Hoare triple {11060#(and (or (<= main_n 28) (<= main_i 60)) (or (< 28 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11060#(and (or (<= main_n 28) (<= main_i 60)) (or (< 28 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,204 INFO L273 TraceCheckUtils]: 31: Hoare triple {11060#(and (or (<= main_n 28) (<= main_i 60)) (or (< 28 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11061#(and (or (<= 64 main_i) (< 28 main_n)) (or (<= main_i 64) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,205 INFO L273 TraceCheckUtils]: 32: Hoare triple {11061#(and (or (<= 64 main_i) (< 28 main_n)) (or (<= main_i 64) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11061#(and (or (<= 64 main_i) (< 28 main_n)) (or (<= main_i 64) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,206 INFO L273 TraceCheckUtils]: 33: Hoare triple {11061#(and (or (<= 64 main_i) (< 28 main_n)) (or (<= main_i 64) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11062#(and (or (<= main_n 28) (<= main_i 68)) (or (< 28 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,207 INFO L273 TraceCheckUtils]: 34: Hoare triple {11062#(and (or (<= main_n 28) (<= main_i 68)) (or (< 28 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11062#(and (or (<= main_n 28) (<= main_i 68)) (or (< 28 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,208 INFO L273 TraceCheckUtils]: 35: Hoare triple {11062#(and (or (<= main_n 28) (<= main_i 68)) (or (< 28 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11063#(and (or (<= main_n 28) (<= main_i 72)) (or (<= 72 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,208 INFO L273 TraceCheckUtils]: 36: Hoare triple {11063#(and (or (<= main_n 28) (<= main_i 72)) (or (<= 72 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11063#(and (or (<= main_n 28) (<= main_i 72)) (or (<= 72 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,210 INFO L273 TraceCheckUtils]: 37: Hoare triple {11063#(and (or (<= main_n 28) (<= main_i 72)) (or (<= 72 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11064#(and (or (<= main_i 76) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 28 main_n)))} is VALID [2019-02-27 12:57:29,210 INFO L273 TraceCheckUtils]: 38: Hoare triple {11064#(and (or (<= main_i 76) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 28 main_n)))} assume i <= n * 4; {11064#(and (or (<= main_i 76) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 28 main_n)))} is VALID [2019-02-27 12:57:29,211 INFO L273 TraceCheckUtils]: 39: Hoare triple {11064#(and (or (<= main_i 76) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 28 main_n)))} assume a[i] != 23;i := i + 4; {11065#(and (or (<= main_n 28) (<= main_i 80)) (or (< 28 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,212 INFO L273 TraceCheckUtils]: 40: Hoare triple {11065#(and (or (<= main_n 28) (<= main_i 80)) (or (< 28 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11065#(and (or (<= main_n 28) (<= main_i 80)) (or (< 28 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,213 INFO L273 TraceCheckUtils]: 41: Hoare triple {11065#(and (or (<= main_n 28) (<= main_i 80)) (or (< 28 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11066#(and (or (<= main_i 84) (<= main_n 28)) (or (< 28 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,214 INFO L273 TraceCheckUtils]: 42: Hoare triple {11066#(and (or (<= main_i 84) (<= main_n 28)) (or (< 28 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11066#(and (or (<= main_i 84) (<= main_n 28)) (or (< 28 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,215 INFO L273 TraceCheckUtils]: 43: Hoare triple {11066#(and (or (<= main_i 84) (<= main_n 28)) (or (< 28 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11067#(and (or (< 28 main_n) (<= 88 main_i)) (or (<= main_i 88) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,216 INFO L273 TraceCheckUtils]: 44: Hoare triple {11067#(and (or (< 28 main_n) (<= 88 main_i)) (or (<= main_i 88) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11067#(and (or (< 28 main_n) (<= 88 main_i)) (or (<= main_i 88) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,217 INFO L273 TraceCheckUtils]: 45: Hoare triple {11067#(and (or (< 28 main_n) (<= 88 main_i)) (or (<= main_i 88) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11068#(and (or (< 28 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,218 INFO L273 TraceCheckUtils]: 46: Hoare triple {11068#(and (or (< 28 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11068#(and (or (< 28 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,219 INFO L273 TraceCheckUtils]: 47: Hoare triple {11068#(and (or (< 28 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11069#(and (or (< 28 main_n) (<= 96 main_i)) (or (<= main_i 96) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,220 INFO L273 TraceCheckUtils]: 48: Hoare triple {11069#(and (or (< 28 main_n) (<= 96 main_i)) (or (<= main_i 96) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11069#(and (or (< 28 main_n) (<= 96 main_i)) (or (<= main_i 96) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,221 INFO L273 TraceCheckUtils]: 49: Hoare triple {11069#(and (or (< 28 main_n) (<= 96 main_i)) (or (<= main_i 96) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11070#(and (or (<= main_i 100) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))) (or (< 28 main_n) (<= 100 main_i)))} is VALID [2019-02-27 12:57:29,222 INFO L273 TraceCheckUtils]: 50: Hoare triple {11070#(and (or (<= main_i 100) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))) (or (< 28 main_n) (<= 100 main_i)))} assume i <= n * 4; {11070#(and (or (<= main_i 100) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))) (or (< 28 main_n) (<= 100 main_i)))} is VALID [2019-02-27 12:57:29,223 INFO L273 TraceCheckUtils]: 51: Hoare triple {11070#(and (or (<= main_i 100) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))) (or (< 28 main_n) (<= 100 main_i)))} assume a[i] != 23;i := i + 4; {11071#(and (or (< 28 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 104) (<= main_n 28)))} is VALID [2019-02-27 12:57:29,224 INFO L273 TraceCheckUtils]: 52: Hoare triple {11071#(and (or (< 28 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 104) (<= main_n 28)))} assume i <= n * 4; {11071#(and (or (< 28 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 104) (<= main_n 28)))} is VALID [2019-02-27 12:57:29,225 INFO L273 TraceCheckUtils]: 53: Hoare triple {11071#(and (or (< 28 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 104) (<= main_n 28)))} assume a[i] != 23;i := i + 4; {11072#(and (or (<= main_n 28) (<= main_i 108)) (or (< 28 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,226 INFO L273 TraceCheckUtils]: 54: Hoare triple {11072#(and (or (<= main_n 28) (<= main_i 108)) (or (< 28 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11072#(and (or (<= main_n 28) (<= main_i 108)) (or (< 28 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:29,227 INFO L273 TraceCheckUtils]: 55: Hoare triple {11072#(and (or (<= main_n 28) (<= main_i 108)) (or (< 28 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11073#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= (* 4 main_n) main_i) (< 28 main_n)) (or (<= main_n 28) (<= main_i 112)))))} is VALID [2019-02-27 12:57:29,228 INFO L273 TraceCheckUtils]: 56: Hoare triple {11073#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= (* 4 main_n) main_i) (< 28 main_n)) (or (<= main_n 28) (<= main_i 112)))))} assume i <= n * 4; {11074#(and (or (= (* 4 main_n) main_i) (and (< 28 main_n) (<= main_i 112))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-02-27 12:57:29,229 INFO L273 TraceCheckUtils]: 57: Hoare triple {11074#(and (or (= (* 4 main_n) main_i) (and (< 28 main_n) (<= main_i 112))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume a[i] != 23;i := i + 4; {11075#(and (<= main_i 116) (<= 29 main_n))} is VALID [2019-02-27 12:57:29,230 INFO L273 TraceCheckUtils]: 58: Hoare triple {11075#(and (<= main_i 116) (<= 29 main_n))} assume !(i <= n * 4); {11044#false} is VALID [2019-02-27 12:57:29,246 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 0 proven. 812 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:57:29,246 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:57:29,246 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:57:29,246 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:57:29,246 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:57:29,247 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:57:29,247 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:57:29,256 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 12:57:29,256 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-27 12:57:29,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:57:29,277 WARN L254 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 63 conjunts are in the unsatisfiable core [2019-02-27 12:57:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:57:29,285 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:57:29,329 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:57:29,335 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:57:29,338 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:57:29,338 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:57:29,340 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:57:29,340 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_32]. (and (= (store v_main_a_32 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-27 12:57:29,340 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:57:30,863 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:57:30,880 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:57:30,884 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:57:30,884 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:57:30,886 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:57:30,887 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 112 .cse0) (<= main_i 116) (= 23 (select main_a .cse0)) (not (= (select main_a 112) 23)))) [2019-02-27 12:57:30,887 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 112 .cse0)) (<= 112 .cse0) (<= main_i 116))) [2019-02-27 12:57:30,974 INFO L273 TraceCheckUtils]: 0: Hoare triple {11043#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {11079#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:30,975 INFO L273 TraceCheckUtils]: 1: Hoare triple {11079#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11083#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:57:30,975 INFO L273 TraceCheckUtils]: 2: Hoare triple {11083#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {11083#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:57:30,976 INFO L273 TraceCheckUtils]: 3: Hoare triple {11083#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {11090#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:30,976 INFO L273 TraceCheckUtils]: 4: Hoare triple {11090#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11090#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:30,977 INFO L273 TraceCheckUtils]: 5: Hoare triple {11090#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11097#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:57:30,978 INFO L273 TraceCheckUtils]: 6: Hoare triple {11097#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {11097#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:57:30,979 INFO L273 TraceCheckUtils]: 7: Hoare triple {11097#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {11104#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:30,979 INFO L273 TraceCheckUtils]: 8: Hoare triple {11104#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11104#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:30,980 INFO L273 TraceCheckUtils]: 9: Hoare triple {11104#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11111#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:30,981 INFO L273 TraceCheckUtils]: 10: Hoare triple {11111#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11111#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:30,985 INFO L273 TraceCheckUtils]: 11: Hoare triple {11111#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11118#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:30,985 INFO L273 TraceCheckUtils]: 12: Hoare triple {11118#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11118#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:30,986 INFO L273 TraceCheckUtils]: 13: Hoare triple {11118#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11125#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:30,986 INFO L273 TraceCheckUtils]: 14: Hoare triple {11125#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11125#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:30,987 INFO L273 TraceCheckUtils]: 15: Hoare triple {11125#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11132#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:30,987 INFO L273 TraceCheckUtils]: 16: Hoare triple {11132#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11132#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:30,988 INFO L273 TraceCheckUtils]: 17: Hoare triple {11132#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11139#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:30,988 INFO L273 TraceCheckUtils]: 18: Hoare triple {11139#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11139#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:30,988 INFO L273 TraceCheckUtils]: 19: Hoare triple {11139#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11146#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:30,989 INFO L273 TraceCheckUtils]: 20: Hoare triple {11146#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11146#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:30,989 INFO L273 TraceCheckUtils]: 21: Hoare triple {11146#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11153#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:30,990 INFO L273 TraceCheckUtils]: 22: Hoare triple {11153#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11153#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:30,991 INFO L273 TraceCheckUtils]: 23: Hoare triple {11153#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11160#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:30,991 INFO L273 TraceCheckUtils]: 24: Hoare triple {11160#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11160#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:30,992 INFO L273 TraceCheckUtils]: 25: Hoare triple {11160#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11167#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:30,993 INFO L273 TraceCheckUtils]: 26: Hoare triple {11167#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11167#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:30,993 INFO L273 TraceCheckUtils]: 27: Hoare triple {11167#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11174#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:30,994 INFO L273 TraceCheckUtils]: 28: Hoare triple {11174#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11174#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:30,995 INFO L273 TraceCheckUtils]: 29: Hoare triple {11174#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11181#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:31,011 INFO L273 TraceCheckUtils]: 30: Hoare triple {11181#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11181#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:31,012 INFO L273 TraceCheckUtils]: 31: Hoare triple {11181#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11188#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:31,012 INFO L273 TraceCheckUtils]: 32: Hoare triple {11188#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11188#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:31,013 INFO L273 TraceCheckUtils]: 33: Hoare triple {11188#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11195#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:31,013 INFO L273 TraceCheckUtils]: 34: Hoare triple {11195#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11195#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:31,014 INFO L273 TraceCheckUtils]: 35: Hoare triple {11195#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11202#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:31,014 INFO L273 TraceCheckUtils]: 36: Hoare triple {11202#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11202#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:31,015 INFO L273 TraceCheckUtils]: 37: Hoare triple {11202#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11209#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:31,015 INFO L273 TraceCheckUtils]: 38: Hoare triple {11209#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11209#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:31,015 INFO L273 TraceCheckUtils]: 39: Hoare triple {11209#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11216#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:57:31,016 INFO L273 TraceCheckUtils]: 40: Hoare triple {11216#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {11216#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:57:31,017 INFO L273 TraceCheckUtils]: 41: Hoare triple {11216#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {11223#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:31,018 INFO L273 TraceCheckUtils]: 42: Hoare triple {11223#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11223#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:31,018 INFO L273 TraceCheckUtils]: 43: Hoare triple {11223#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11230#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:31,019 INFO L273 TraceCheckUtils]: 44: Hoare triple {11230#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11230#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:31,020 INFO L273 TraceCheckUtils]: 45: Hoare triple {11230#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11237#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:31,020 INFO L273 TraceCheckUtils]: 46: Hoare triple {11237#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11237#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:31,021 INFO L273 TraceCheckUtils]: 47: Hoare triple {11237#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11244#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:31,022 INFO L273 TraceCheckUtils]: 48: Hoare triple {11244#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11244#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:31,022 INFO L273 TraceCheckUtils]: 49: Hoare triple {11244#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11251#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:31,023 INFO L273 TraceCheckUtils]: 50: Hoare triple {11251#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11251#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:31,024 INFO L273 TraceCheckUtils]: 51: Hoare triple {11251#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11258#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:31,024 INFO L273 TraceCheckUtils]: 52: Hoare triple {11258#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11258#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:31,025 INFO L273 TraceCheckUtils]: 53: Hoare triple {11258#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11265#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:31,026 INFO L273 TraceCheckUtils]: 54: Hoare triple {11265#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11265#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:31,027 INFO L273 TraceCheckUtils]: 55: Hoare triple {11265#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11272#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:31,028 INFO L273 TraceCheckUtils]: 56: Hoare triple {11272#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11276#(and (= main_i 112) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:31,029 INFO L273 TraceCheckUtils]: 57: Hoare triple {11276#(and (= main_i 112) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11075#(and (<= main_i 116) (<= 29 main_n))} is VALID [2019-02-27 12:57:31,030 INFO L273 TraceCheckUtils]: 58: Hoare triple {11075#(and (<= main_i 116) (<= 29 main_n))} assume !(i <= n * 4); {11044#false} is VALID [2019-02-27 12:57:31,039 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 0 proven. 812 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:57:31,039 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:57:33,914 INFO L273 TraceCheckUtils]: 58: Hoare triple {11283#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {11044#false} is VALID [2019-02-27 12:57:33,916 INFO L273 TraceCheckUtils]: 57: Hoare triple {11287#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {11283#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:57:33,916 INFO L273 TraceCheckUtils]: 56: Hoare triple {11291#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {11287#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:57:33,917 INFO L273 TraceCheckUtils]: 55: Hoare triple {11295#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {11291#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:57:33,918 INFO L273 TraceCheckUtils]: 54: Hoare triple {11295#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {11295#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:57:33,919 INFO L273 TraceCheckUtils]: 53: Hoare triple {11302#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {11295#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:57:33,919 INFO L273 TraceCheckUtils]: 52: Hoare triple {11302#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {11302#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:57:33,921 INFO L273 TraceCheckUtils]: 51: Hoare triple {11309#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {11302#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:57:33,921 INFO L273 TraceCheckUtils]: 50: Hoare triple {11309#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {11309#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:57:33,922 INFO L273 TraceCheckUtils]: 49: Hoare triple {11316#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {11309#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:57:33,923 INFO L273 TraceCheckUtils]: 48: Hoare triple {11316#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {11316#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:57:33,924 INFO L273 TraceCheckUtils]: 47: Hoare triple {11323#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {11316#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:57:33,925 INFO L273 TraceCheckUtils]: 46: Hoare triple {11323#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {11323#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:57:33,926 INFO L273 TraceCheckUtils]: 45: Hoare triple {11330#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {11323#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:57:33,926 INFO L273 TraceCheckUtils]: 44: Hoare triple {11330#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {11330#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:57:33,927 INFO L273 TraceCheckUtils]: 43: Hoare triple {11337#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {11330#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:57:33,928 INFO L273 TraceCheckUtils]: 42: Hoare triple {11337#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {11337#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:57:33,929 INFO L273 TraceCheckUtils]: 41: Hoare triple {11344#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {11337#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:57:33,929 INFO L273 TraceCheckUtils]: 40: Hoare triple {11344#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {11344#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:57:33,931 INFO L273 TraceCheckUtils]: 39: Hoare triple {11351#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {11344#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:57:33,931 INFO L273 TraceCheckUtils]: 38: Hoare triple {11351#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {11351#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:57:33,932 INFO L273 TraceCheckUtils]: 37: Hoare triple {11358#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {11351#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:57:33,933 INFO L273 TraceCheckUtils]: 36: Hoare triple {11358#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {11358#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:57:33,934 INFO L273 TraceCheckUtils]: 35: Hoare triple {11365#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {11358#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:57:33,934 INFO L273 TraceCheckUtils]: 34: Hoare triple {11365#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {11365#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:57:33,936 INFO L273 TraceCheckUtils]: 33: Hoare triple {11372#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {11365#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:57:33,936 INFO L273 TraceCheckUtils]: 32: Hoare triple {11372#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {11372#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:57:33,937 INFO L273 TraceCheckUtils]: 31: Hoare triple {11379#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {11372#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:57:33,938 INFO L273 TraceCheckUtils]: 30: Hoare triple {11379#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {11379#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:57:33,939 INFO L273 TraceCheckUtils]: 29: Hoare triple {11386#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {11379#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:57:33,940 INFO L273 TraceCheckUtils]: 28: Hoare triple {11386#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {11386#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:57:33,941 INFO L273 TraceCheckUtils]: 27: Hoare triple {11393#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {11386#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:57:33,941 INFO L273 TraceCheckUtils]: 26: Hoare triple {11393#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {11393#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:57:33,942 INFO L273 TraceCheckUtils]: 25: Hoare triple {11400#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {11393#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:57:33,943 INFO L273 TraceCheckUtils]: 24: Hoare triple {11400#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {11400#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:57:33,944 INFO L273 TraceCheckUtils]: 23: Hoare triple {11407#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {11400#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:57:33,950 INFO L273 TraceCheckUtils]: 22: Hoare triple {11407#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {11407#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:57:33,951 INFO L273 TraceCheckUtils]: 21: Hoare triple {11414#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {11407#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:57:33,952 INFO L273 TraceCheckUtils]: 20: Hoare triple {11414#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {11414#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:57:33,952 INFO L273 TraceCheckUtils]: 19: Hoare triple {11421#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {11414#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:57:33,953 INFO L273 TraceCheckUtils]: 18: Hoare triple {11421#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {11421#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:57:33,953 INFO L273 TraceCheckUtils]: 17: Hoare triple {11428#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {11421#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:57:33,954 INFO L273 TraceCheckUtils]: 16: Hoare triple {11428#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {11428#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 12:57:33,954 INFO L273 TraceCheckUtils]: 15: Hoare triple {11435#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {11428#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 12:57:33,955 INFO L273 TraceCheckUtils]: 14: Hoare triple {11435#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {11435#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 12:57:33,956 INFO L273 TraceCheckUtils]: 13: Hoare triple {11442#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {11435#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 12:57:33,956 INFO L273 TraceCheckUtils]: 12: Hoare triple {11442#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {11442#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 12:57:33,957 INFO L273 TraceCheckUtils]: 11: Hoare triple {11449#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {11442#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 12:57:33,958 INFO L273 TraceCheckUtils]: 10: Hoare triple {11449#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {11449#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 12:57:33,959 INFO L273 TraceCheckUtils]: 9: Hoare triple {11456#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {11449#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 12:57:33,960 INFO L273 TraceCheckUtils]: 8: Hoare triple {11456#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {11456#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 12:57:33,961 INFO L273 TraceCheckUtils]: 7: Hoare triple {11463#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {11456#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 12:57:33,961 INFO L273 TraceCheckUtils]: 6: Hoare triple {11463#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {11463#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 12:57:33,962 INFO L273 TraceCheckUtils]: 5: Hoare triple {11470#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {11463#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 12:57:33,963 INFO L273 TraceCheckUtils]: 4: Hoare triple {11470#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {11470#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 12:57:33,964 INFO L273 TraceCheckUtils]: 3: Hoare triple {11477#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {11470#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 12:57:33,966 INFO L273 TraceCheckUtils]: 2: Hoare triple {11477#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {11477#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 12:57:33,968 INFO L273 TraceCheckUtils]: 1: Hoare triple {11484#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {11477#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 12:57:33,968 INFO L273 TraceCheckUtils]: 0: Hoare triple {11043#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {11484#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 12:57:33,982 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 0 proven. 812 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:57:34,000 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:57:34,001 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 92 [2019-02-27 12:57:34,001 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:57:34,001 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 59 [2019-02-27 12:57:34,002 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:57:34,002 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 63 states. [2019-02-27 12:57:34,197 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 117 edges. 117 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:57:34,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 63 states [2019-02-27 12:57:34,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2019-02-27 12:57:34,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1124, Invalid=7618, Unknown=0, NotChecked=0, Total=8742 [2019-02-27 12:57:34,198 INFO L87 Difference]: Start difference. First operand 60 states and 60 transitions. Second operand 63 states. [2019-02-27 12:57:39,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:57:39,501 INFO L93 Difference]: Finished difference Result 64 states and 64 transitions. [2019-02-27 12:57:39,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-02-27 12:57:39,501 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 59 [2019-02-27 12:57:39,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:57:39,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-02-27 12:57:39,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 64 transitions. [2019-02-27 12:57:39,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-02-27 12:57:39,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 64 transitions. [2019-02-27 12:57:39,503 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 33 states and 64 transitions. [2019-02-27 12:57:39,571 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 64 edges. 64 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:57:39,573 INFO L225 Difference]: With dead ends: 64 [2019-02-27 12:57:39,573 INFO L226 Difference]: Without dead ends: 63 [2019-02-27 12:57:39,574 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1980 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=1124, Invalid=7618, Unknown=0, NotChecked=0, Total=8742 [2019-02-27 12:57:39,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2019-02-27 12:57:39,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 62. [2019-02-27 12:57:39,633 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:57:39,633 INFO L82 GeneralOperation]: Start isEquivalent. First operand 63 states. Second operand 62 states. [2019-02-27 12:57:39,633 INFO L74 IsIncluded]: Start isIncluded. First operand 63 states. Second operand 62 states. [2019-02-27 12:57:39,633 INFO L87 Difference]: Start difference. First operand 63 states. Second operand 62 states. [2019-02-27 12:57:39,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:57:39,635 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2019-02-27 12:57:39,635 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2019-02-27 12:57:39,635 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:57:39,635 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:57:39,635 INFO L74 IsIncluded]: Start isIncluded. First operand 62 states. Second operand 63 states. [2019-02-27 12:57:39,635 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 63 states. [2019-02-27 12:57:39,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:57:39,637 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2019-02-27 12:57:39,637 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2019-02-27 12:57:39,637 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:57:39,637 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:57:39,637 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:57:39,637 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:57:39,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-02-27 12:57:39,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2019-02-27 12:57:39,638 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 59 [2019-02-27 12:57:39,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:57:39,638 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2019-02-27 12:57:39,638 INFO L481 AbstractCegarLoop]: Interpolant automaton has 63 states. [2019-02-27 12:57:39,638 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2019-02-27 12:57:39,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-02-27 12:57:39,639 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:57:39,639 INFO L402 BasicCegarLoop]: trace histogram [30, 29, 1, 1] [2019-02-27 12:57:39,639 INFO L423 AbstractCegarLoop]: === Iteration 30 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:57:39,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:57:39,639 INFO L82 PathProgramCache]: Analyzing trace with hash -176267942, now seen corresponding path program 29 times [2019-02-27 12:57:39,639 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:57:39,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:57:39,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 12:57:39,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:57:39,640 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:57:39,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:57:39,971 WARN L181 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-02-27 12:57:41,302 INFO L273 TraceCheckUtils]: 0: Hoare triple {11800#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {11802#(and (or (<= 0 main_i) (< 29 main_n)) (or (<= main_n 29) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,303 INFO L273 TraceCheckUtils]: 1: Hoare triple {11802#(and (or (<= 0 main_i) (< 29 main_n)) (or (<= main_n 29) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11803#(and (or (<= main_n 29) (<= main_i 4)) (or (< 29 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,303 INFO L273 TraceCheckUtils]: 2: Hoare triple {11803#(and (or (<= main_n 29) (<= main_i 4)) (or (< 29 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11803#(and (or (<= main_n 29) (<= main_i 4)) (or (< 29 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,304 INFO L273 TraceCheckUtils]: 3: Hoare triple {11803#(and (or (<= main_n 29) (<= main_i 4)) (or (< 29 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11804#(and (or (<= main_n 29) (<= main_i 8)) (or (< 29 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,304 INFO L273 TraceCheckUtils]: 4: Hoare triple {11804#(and (or (<= main_n 29) (<= main_i 8)) (or (< 29 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11804#(and (or (<= main_n 29) (<= main_i 8)) (or (< 29 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,305 INFO L273 TraceCheckUtils]: 5: Hoare triple {11804#(and (or (<= main_n 29) (<= main_i 8)) (or (< 29 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11805#(and (or (< 29 main_n) (<= 12 main_i)) (or (<= main_n 29) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,305 INFO L273 TraceCheckUtils]: 6: Hoare triple {11805#(and (or (< 29 main_n) (<= 12 main_i)) (or (<= main_n 29) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11805#(and (or (< 29 main_n) (<= 12 main_i)) (or (<= main_n 29) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,306 INFO L273 TraceCheckUtils]: 7: Hoare triple {11805#(and (or (< 29 main_n) (<= 12 main_i)) (or (<= main_n 29) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11806#(and (or (<= main_n 29) (<= main_i 16)) (or (< 29 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,307 INFO L273 TraceCheckUtils]: 8: Hoare triple {11806#(and (or (<= main_n 29) (<= main_i 16)) (or (< 29 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11806#(and (or (<= main_n 29) (<= main_i 16)) (or (< 29 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,308 INFO L273 TraceCheckUtils]: 9: Hoare triple {11806#(and (or (<= main_n 29) (<= main_i 16)) (or (< 29 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11807#(and (or (< 29 main_n) (<= 20 main_i)) (or (<= main_n 29) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,309 INFO L273 TraceCheckUtils]: 10: Hoare triple {11807#(and (or (< 29 main_n) (<= 20 main_i)) (or (<= main_n 29) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11807#(and (or (< 29 main_n) (<= 20 main_i)) (or (<= main_n 29) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,310 INFO L273 TraceCheckUtils]: 11: Hoare triple {11807#(and (or (< 29 main_n) (<= 20 main_i)) (or (<= main_n 29) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11808#(and (or (< 29 main_n) (<= 24 main_i)) (or (<= main_n 29) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,311 INFO L273 TraceCheckUtils]: 12: Hoare triple {11808#(and (or (< 29 main_n) (<= 24 main_i)) (or (<= main_n 29) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11808#(and (or (< 29 main_n) (<= 24 main_i)) (or (<= main_n 29) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,312 INFO L273 TraceCheckUtils]: 13: Hoare triple {11808#(and (or (< 29 main_n) (<= 24 main_i)) (or (<= main_n 29) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11809#(and (or (<= 28 main_i) (< 29 main_n)) (or (<= main_n 29) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,312 INFO L273 TraceCheckUtils]: 14: Hoare triple {11809#(and (or (<= 28 main_i) (< 29 main_n)) (or (<= main_n 29) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11809#(and (or (<= 28 main_i) (< 29 main_n)) (or (<= main_n 29) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,314 INFO L273 TraceCheckUtils]: 15: Hoare triple {11809#(and (or (<= 28 main_i) (< 29 main_n)) (or (<= main_n 29) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11810#(and (or (<= main_i 32) (<= main_n 29)) (or (<= 32 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,314 INFO L273 TraceCheckUtils]: 16: Hoare triple {11810#(and (or (<= main_i 32) (<= main_n 29)) (or (<= 32 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11810#(and (or (<= main_i 32) (<= main_n 29)) (or (<= 32 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,315 INFO L273 TraceCheckUtils]: 17: Hoare triple {11810#(and (or (<= main_i 32) (<= main_n 29)) (or (<= 32 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11811#(and (or (<= main_i 36) (<= main_n 29)) (or (< 29 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,316 INFO L273 TraceCheckUtils]: 18: Hoare triple {11811#(and (or (<= main_i 36) (<= main_n 29)) (or (< 29 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11811#(and (or (<= main_i 36) (<= main_n 29)) (or (< 29 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,317 INFO L273 TraceCheckUtils]: 19: Hoare triple {11811#(and (or (<= main_i 36) (<= main_n 29)) (or (< 29 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11812#(and (or (<= 40 main_i) (< 29 main_n)) (or (<= main_n 29) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,318 INFO L273 TraceCheckUtils]: 20: Hoare triple {11812#(and (or (<= 40 main_i) (< 29 main_n)) (or (<= main_n 29) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11812#(and (or (<= 40 main_i) (< 29 main_n)) (or (<= main_n 29) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,319 INFO L273 TraceCheckUtils]: 21: Hoare triple {11812#(and (or (<= 40 main_i) (< 29 main_n)) (or (<= main_n 29) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11813#(and (or (<= main_n 29) (<= main_i 44)) (or (<= 44 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,320 INFO L273 TraceCheckUtils]: 22: Hoare triple {11813#(and (or (<= main_n 29) (<= main_i 44)) (or (<= 44 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11813#(and (or (<= main_n 29) (<= main_i 44)) (or (<= 44 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,321 INFO L273 TraceCheckUtils]: 23: Hoare triple {11813#(and (or (<= main_n 29) (<= main_i 44)) (or (<= 44 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11814#(and (or (<= main_n 29) (<= main_i 48)) (or (<= 48 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,322 INFO L273 TraceCheckUtils]: 24: Hoare triple {11814#(and (or (<= main_n 29) (<= main_i 48)) (or (<= 48 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11814#(and (or (<= main_n 29) (<= main_i 48)) (or (<= 48 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,323 INFO L273 TraceCheckUtils]: 25: Hoare triple {11814#(and (or (<= main_n 29) (<= main_i 48)) (or (<= 48 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11815#(and (or (<= main_i 52) (<= main_n 29)) (or (< 29 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,324 INFO L273 TraceCheckUtils]: 26: Hoare triple {11815#(and (or (<= main_i 52) (<= main_n 29)) (or (< 29 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11815#(and (or (<= main_i 52) (<= main_n 29)) (or (< 29 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,325 INFO L273 TraceCheckUtils]: 27: Hoare triple {11815#(and (or (<= main_i 52) (<= main_n 29)) (or (< 29 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11816#(and (or (< 29 main_n) (<= 56 main_i)) (or (<= main_n 29) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,326 INFO L273 TraceCheckUtils]: 28: Hoare triple {11816#(and (or (< 29 main_n) (<= 56 main_i)) (or (<= main_n 29) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11816#(and (or (< 29 main_n) (<= 56 main_i)) (or (<= main_n 29) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,327 INFO L273 TraceCheckUtils]: 29: Hoare triple {11816#(and (or (< 29 main_n) (<= 56 main_i)) (or (<= main_n 29) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11817#(and (or (<= main_n 29) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))) (or (< 29 main_n) (<= 60 main_i)))} is VALID [2019-02-27 12:57:41,328 INFO L273 TraceCheckUtils]: 30: Hoare triple {11817#(and (or (<= main_n 29) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))) (or (< 29 main_n) (<= 60 main_i)))} assume i <= n * 4; {11817#(and (or (<= main_n 29) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))) (or (< 29 main_n) (<= 60 main_i)))} is VALID [2019-02-27 12:57:41,329 INFO L273 TraceCheckUtils]: 31: Hoare triple {11817#(and (or (<= main_n 29) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))) (or (< 29 main_n) (<= 60 main_i)))} assume a[i] != 23;i := i + 4; {11818#(and (or (<= main_n 29) (<= main_i 64)) (or (<= 64 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,329 INFO L273 TraceCheckUtils]: 32: Hoare triple {11818#(and (or (<= main_n 29) (<= main_i 64)) (or (<= 64 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11818#(and (or (<= main_n 29) (<= main_i 64)) (or (<= 64 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,330 INFO L273 TraceCheckUtils]: 33: Hoare triple {11818#(and (or (<= main_n 29) (<= main_i 64)) (or (<= 64 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11819#(and (or (<= main_n 29) (<= main_i 68)) (or (< 29 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,331 INFO L273 TraceCheckUtils]: 34: Hoare triple {11819#(and (or (<= main_n 29) (<= main_i 68)) (or (< 29 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11819#(and (or (<= main_n 29) (<= main_i 68)) (or (< 29 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,332 INFO L273 TraceCheckUtils]: 35: Hoare triple {11819#(and (or (<= main_n 29) (<= main_i 68)) (or (< 29 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11820#(and (or (<= main_n 29) (<= main_i 72)) (or (<= 72 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,333 INFO L273 TraceCheckUtils]: 36: Hoare triple {11820#(and (or (<= main_n 29) (<= main_i 72)) (or (<= 72 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11820#(and (or (<= main_n 29) (<= main_i 72)) (or (<= 72 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,334 INFO L273 TraceCheckUtils]: 37: Hoare triple {11820#(and (or (<= main_n 29) (<= main_i 72)) (or (<= 72 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11821#(and (or (<= 76 main_i) (< 29 main_n)) (or (<= main_i 76) (<= main_n 29)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,335 INFO L273 TraceCheckUtils]: 38: Hoare triple {11821#(and (or (<= 76 main_i) (< 29 main_n)) (or (<= main_i 76) (<= main_n 29)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11821#(and (or (<= 76 main_i) (< 29 main_n)) (or (<= main_i 76) (<= main_n 29)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,336 INFO L273 TraceCheckUtils]: 39: Hoare triple {11821#(and (or (<= 76 main_i) (< 29 main_n)) (or (<= main_i 76) (<= main_n 29)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11822#(and (or (< 29 main_n) (<= 80 main_i)) (or (<= main_n 29) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,337 INFO L273 TraceCheckUtils]: 40: Hoare triple {11822#(and (or (< 29 main_n) (<= 80 main_i)) (or (<= main_n 29) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11822#(and (or (< 29 main_n) (<= 80 main_i)) (or (<= main_n 29) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,338 INFO L273 TraceCheckUtils]: 41: Hoare triple {11822#(and (or (< 29 main_n) (<= 80 main_i)) (or (<= main_n 29) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11823#(and (or (< 29 main_n) (<= 84 main_i)) (or (<= main_n 29) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,339 INFO L273 TraceCheckUtils]: 42: Hoare triple {11823#(and (or (< 29 main_n) (<= 84 main_i)) (or (<= main_n 29) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11823#(and (or (< 29 main_n) (<= 84 main_i)) (or (<= main_n 29) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,340 INFO L273 TraceCheckUtils]: 43: Hoare triple {11823#(and (or (< 29 main_n) (<= 84 main_i)) (or (<= main_n 29) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11824#(and (or (<= main_i 88) (<= main_n 29)) (or (< 29 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,341 INFO L273 TraceCheckUtils]: 44: Hoare triple {11824#(and (or (<= main_i 88) (<= main_n 29)) (or (< 29 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11824#(and (or (<= main_i 88) (<= main_n 29)) (or (< 29 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,342 INFO L273 TraceCheckUtils]: 45: Hoare triple {11824#(and (or (<= main_i 88) (<= main_n 29)) (or (< 29 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11825#(and (or (<= main_i 92) (<= main_n 29)) (or (< 29 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,342 INFO L273 TraceCheckUtils]: 46: Hoare triple {11825#(and (or (<= main_i 92) (<= main_n 29)) (or (< 29 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11825#(and (or (<= main_i 92) (<= main_n 29)) (or (< 29 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,344 INFO L273 TraceCheckUtils]: 47: Hoare triple {11825#(and (or (<= main_i 92) (<= main_n 29)) (or (< 29 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11826#(and (or (< 29 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 29)))} is VALID [2019-02-27 12:57:41,344 INFO L273 TraceCheckUtils]: 48: Hoare triple {11826#(and (or (< 29 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 29)))} assume i <= n * 4; {11826#(and (or (< 29 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 29)))} is VALID [2019-02-27 12:57:41,345 INFO L273 TraceCheckUtils]: 49: Hoare triple {11826#(and (or (< 29 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 29)))} assume a[i] != 23;i := i + 4; {11827#(and (or (< 29 main_n) (<= 100 main_i)) (or (<= main_i 100) (<= main_n 29)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,346 INFO L273 TraceCheckUtils]: 50: Hoare triple {11827#(and (or (< 29 main_n) (<= 100 main_i)) (or (<= main_i 100) (<= main_n 29)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11827#(and (or (< 29 main_n) (<= 100 main_i)) (or (<= main_i 100) (<= main_n 29)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,347 INFO L273 TraceCheckUtils]: 51: Hoare triple {11827#(and (or (< 29 main_n) (<= 100 main_i)) (or (<= main_i 100) (<= main_n 29)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11828#(and (or (<= main_i 104) (<= main_n 29)) (or (< 29 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,348 INFO L273 TraceCheckUtils]: 52: Hoare triple {11828#(and (or (<= main_i 104) (<= main_n 29)) (or (< 29 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11828#(and (or (<= main_i 104) (<= main_n 29)) (or (< 29 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,349 INFO L273 TraceCheckUtils]: 53: Hoare triple {11828#(and (or (<= main_i 104) (<= main_n 29)) (or (< 29 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11829#(and (or (< 29 main_n) (<= 108 main_i)) (or (<= main_n 29) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,350 INFO L273 TraceCheckUtils]: 54: Hoare triple {11829#(and (or (< 29 main_n) (<= 108 main_i)) (or (<= main_n 29) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11829#(and (or (< 29 main_n) (<= 108 main_i)) (or (<= main_n 29) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,351 INFO L273 TraceCheckUtils]: 55: Hoare triple {11829#(and (or (< 29 main_n) (<= 108 main_i)) (or (<= main_n 29) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11830#(and (or (<= main_n 29) (<= main_i 112)) (or (< 29 main_n) (<= 112 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,352 INFO L273 TraceCheckUtils]: 56: Hoare triple {11830#(and (or (<= main_n 29) (<= main_i 112)) (or (< 29 main_n) (<= 112 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11830#(and (or (<= main_n 29) (<= main_i 112)) (or (< 29 main_n) (<= 112 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:41,353 INFO L273 TraceCheckUtils]: 57: Hoare triple {11830#(and (or (<= main_n 29) (<= main_i 112)) (or (< 29 main_n) (<= 112 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11831#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (< 29 main_n) (<= (* 4 main_n) main_i)) (or (<= main_n 29) (<= main_i 116)))))} is VALID [2019-02-27 12:57:41,354 INFO L273 TraceCheckUtils]: 58: Hoare triple {11831#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (< 29 main_n) (<= (* 4 main_n) main_i)) (or (<= main_n 29) (<= main_i 116)))))} assume i <= n * 4; {11832#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 29 main_n) (<= main_i 116))))} is VALID [2019-02-27 12:57:41,355 INFO L273 TraceCheckUtils]: 59: Hoare triple {11832#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 29 main_n) (<= main_i 116))))} assume a[i] != 23;i := i + 4; {11833#(and (<= main_i 120) (< 29 main_n))} is VALID [2019-02-27 12:57:41,356 INFO L273 TraceCheckUtils]: 60: Hoare triple {11833#(and (<= main_i 120) (< 29 main_n))} assume !(i <= n * 4); {11801#false} is VALID [2019-02-27 12:57:41,374 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:57:41,374 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:57:41,374 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:57:41,374 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:57:41,375 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:57:41,375 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:57:41,375 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:57:41,384 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-27 12:57:41,384 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-27 12:57:41,421 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 30 check-sat command(s) [2019-02-27 12:57:41,422 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 12:57:41,423 WARN L254 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 65 conjunts are in the unsatisfiable core [2019-02-27 12:57:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:57:41,436 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:57:41,457 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:57:41,458 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:57:41,465 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:57:41,465 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:57:41,467 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:57:41,467 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_33]. (and (= main_a (store v_main_a_33 (* 4 main_n) 23)) (= main_i 0)) [2019-02-27 12:57:41,467 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:57:43,275 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:57:43,276 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:57:43,282 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:57:43,282 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:57:43,284 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:57:43,285 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 120) (<= 116 .cse0) (not (= (select main_a 116) 23)) (= 23 (select main_a .cse0)))) [2019-02-27 12:57:43,285 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 116 .cse0)) (<= main_i 120) (<= 116 .cse0))) [2019-02-27 12:57:43,323 INFO L273 TraceCheckUtils]: 0: Hoare triple {11800#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {11837#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,323 INFO L273 TraceCheckUtils]: 1: Hoare triple {11837#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11841#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:57:43,324 INFO L273 TraceCheckUtils]: 2: Hoare triple {11841#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {11841#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:57:43,325 INFO L273 TraceCheckUtils]: 3: Hoare triple {11841#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {11848#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,325 INFO L273 TraceCheckUtils]: 4: Hoare triple {11848#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11848#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,326 INFO L273 TraceCheckUtils]: 5: Hoare triple {11848#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11855#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:57:43,327 INFO L273 TraceCheckUtils]: 6: Hoare triple {11855#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {11855#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:57:43,327 INFO L273 TraceCheckUtils]: 7: Hoare triple {11855#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {11862#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,328 INFO L273 TraceCheckUtils]: 8: Hoare triple {11862#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11862#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,329 INFO L273 TraceCheckUtils]: 9: Hoare triple {11862#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11869#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,329 INFO L273 TraceCheckUtils]: 10: Hoare triple {11869#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11869#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,330 INFO L273 TraceCheckUtils]: 11: Hoare triple {11869#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11876#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,331 INFO L273 TraceCheckUtils]: 12: Hoare triple {11876#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11876#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,331 INFO L273 TraceCheckUtils]: 13: Hoare triple {11876#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11883#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,332 INFO L273 TraceCheckUtils]: 14: Hoare triple {11883#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11883#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,333 INFO L273 TraceCheckUtils]: 15: Hoare triple {11883#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11890#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,333 INFO L273 TraceCheckUtils]: 16: Hoare triple {11890#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11890#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,334 INFO L273 TraceCheckUtils]: 17: Hoare triple {11890#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11897#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,335 INFO L273 TraceCheckUtils]: 18: Hoare triple {11897#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11897#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,335 INFO L273 TraceCheckUtils]: 19: Hoare triple {11897#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11904#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,336 INFO L273 TraceCheckUtils]: 20: Hoare triple {11904#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11904#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,337 INFO L273 TraceCheckUtils]: 21: Hoare triple {11904#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11911#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,337 INFO L273 TraceCheckUtils]: 22: Hoare triple {11911#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11911#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,338 INFO L273 TraceCheckUtils]: 23: Hoare triple {11911#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11918#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,339 INFO L273 TraceCheckUtils]: 24: Hoare triple {11918#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11918#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,340 INFO L273 TraceCheckUtils]: 25: Hoare triple {11918#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11925#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,340 INFO L273 TraceCheckUtils]: 26: Hoare triple {11925#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11925#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,341 INFO L273 TraceCheckUtils]: 27: Hoare triple {11925#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11932#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,342 INFO L273 TraceCheckUtils]: 28: Hoare triple {11932#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11932#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,343 INFO L273 TraceCheckUtils]: 29: Hoare triple {11932#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11939#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,343 INFO L273 TraceCheckUtils]: 30: Hoare triple {11939#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11939#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,344 INFO L273 TraceCheckUtils]: 31: Hoare triple {11939#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11946#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,345 INFO L273 TraceCheckUtils]: 32: Hoare triple {11946#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11946#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,345 INFO L273 TraceCheckUtils]: 33: Hoare triple {11946#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11953#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,346 INFO L273 TraceCheckUtils]: 34: Hoare triple {11953#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11953#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,347 INFO L273 TraceCheckUtils]: 35: Hoare triple {11953#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11960#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,347 INFO L273 TraceCheckUtils]: 36: Hoare triple {11960#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11960#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,348 INFO L273 TraceCheckUtils]: 37: Hoare triple {11960#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11967#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,349 INFO L273 TraceCheckUtils]: 38: Hoare triple {11967#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11967#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,349 INFO L273 TraceCheckUtils]: 39: Hoare triple {11967#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11974#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:57:43,350 INFO L273 TraceCheckUtils]: 40: Hoare triple {11974#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {11974#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:57:43,351 INFO L273 TraceCheckUtils]: 41: Hoare triple {11974#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {11981#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,351 INFO L273 TraceCheckUtils]: 42: Hoare triple {11981#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11981#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,352 INFO L273 TraceCheckUtils]: 43: Hoare triple {11981#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11988#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,353 INFO L273 TraceCheckUtils]: 44: Hoare triple {11988#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11988#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,354 INFO L273 TraceCheckUtils]: 45: Hoare triple {11988#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11995#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,354 INFO L273 TraceCheckUtils]: 46: Hoare triple {11995#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11995#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,355 INFO L273 TraceCheckUtils]: 47: Hoare triple {11995#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12002#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,356 INFO L273 TraceCheckUtils]: 48: Hoare triple {12002#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12002#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,356 INFO L273 TraceCheckUtils]: 49: Hoare triple {12002#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12009#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,357 INFO L273 TraceCheckUtils]: 50: Hoare triple {12009#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12009#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,358 INFO L273 TraceCheckUtils]: 51: Hoare triple {12009#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12016#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,358 INFO L273 TraceCheckUtils]: 52: Hoare triple {12016#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12016#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,359 INFO L273 TraceCheckUtils]: 53: Hoare triple {12016#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12023#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,360 INFO L273 TraceCheckUtils]: 54: Hoare triple {12023#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12023#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,360 INFO L273 TraceCheckUtils]: 55: Hoare triple {12023#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12030#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,361 INFO L273 TraceCheckUtils]: 56: Hoare triple {12030#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12030#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,362 INFO L273 TraceCheckUtils]: 57: Hoare triple {12030#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12037#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,363 INFO L273 TraceCheckUtils]: 58: Hoare triple {12037#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12041#(and (<= main_i (* 4 main_n)) (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:43,364 INFO L273 TraceCheckUtils]: 59: Hoare triple {12041#(and (<= main_i (* 4 main_n)) (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11833#(and (<= main_i 120) (< 29 main_n))} is VALID [2019-02-27 12:57:43,364 INFO L273 TraceCheckUtils]: 60: Hoare triple {11833#(and (<= main_i 120) (< 29 main_n))} assume !(i <= n * 4); {11801#false} is VALID [2019-02-27 12:57:43,374 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:57:43,374 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:57:46,151 INFO L273 TraceCheckUtils]: 60: Hoare triple {12048#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {11801#false} is VALID [2019-02-27 12:57:46,152 INFO L273 TraceCheckUtils]: 59: Hoare triple {12052#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {12048#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:57:46,153 INFO L273 TraceCheckUtils]: 58: Hoare triple {12056#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {12052#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:57:46,154 INFO L273 TraceCheckUtils]: 57: Hoare triple {12060#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {12056#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:57:46,154 INFO L273 TraceCheckUtils]: 56: Hoare triple {12060#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {12060#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:57:46,155 INFO L273 TraceCheckUtils]: 55: Hoare triple {12067#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {12060#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:57:46,156 INFO L273 TraceCheckUtils]: 54: Hoare triple {12067#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {12067#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:57:46,157 INFO L273 TraceCheckUtils]: 53: Hoare triple {12074#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {12067#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:57:46,157 INFO L273 TraceCheckUtils]: 52: Hoare triple {12074#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {12074#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:57:46,158 INFO L273 TraceCheckUtils]: 51: Hoare triple {12081#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {12074#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:57:46,159 INFO L273 TraceCheckUtils]: 50: Hoare triple {12081#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {12081#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:57:46,160 INFO L273 TraceCheckUtils]: 49: Hoare triple {12088#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12081#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:57:46,161 INFO L273 TraceCheckUtils]: 48: Hoare triple {12088#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {12088#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:57:46,162 INFO L273 TraceCheckUtils]: 47: Hoare triple {12095#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {12088#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:57:46,162 INFO L273 TraceCheckUtils]: 46: Hoare triple {12095#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {12095#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:57:46,163 INFO L273 TraceCheckUtils]: 45: Hoare triple {12102#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12095#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:57:46,164 INFO L273 TraceCheckUtils]: 44: Hoare triple {12102#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {12102#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:57:46,165 INFO L273 TraceCheckUtils]: 43: Hoare triple {12109#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12102#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:57:46,165 INFO L273 TraceCheckUtils]: 42: Hoare triple {12109#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {12109#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:57:46,166 INFO L273 TraceCheckUtils]: 41: Hoare triple {12116#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12109#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:57:46,167 INFO L273 TraceCheckUtils]: 40: Hoare triple {12116#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {12116#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:57:46,168 INFO L273 TraceCheckUtils]: 39: Hoare triple {12123#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {12116#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:57:46,168 INFO L273 TraceCheckUtils]: 38: Hoare triple {12123#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {12123#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:57:46,170 INFO L273 TraceCheckUtils]: 37: Hoare triple {12130#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12123#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:57:46,170 INFO L273 TraceCheckUtils]: 36: Hoare triple {12130#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {12130#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:57:46,171 INFO L273 TraceCheckUtils]: 35: Hoare triple {12137#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12130#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:57:46,172 INFO L273 TraceCheckUtils]: 34: Hoare triple {12137#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {12137#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:57:46,173 INFO L273 TraceCheckUtils]: 33: Hoare triple {12144#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {12137#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:57:46,173 INFO L273 TraceCheckUtils]: 32: Hoare triple {12144#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {12144#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:57:46,174 INFO L273 TraceCheckUtils]: 31: Hoare triple {12151#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12144#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:57:46,175 INFO L273 TraceCheckUtils]: 30: Hoare triple {12151#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {12151#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:57:46,176 INFO L273 TraceCheckUtils]: 29: Hoare triple {12158#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {12151#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:57:46,177 INFO L273 TraceCheckUtils]: 28: Hoare triple {12158#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {12158#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:57:46,178 INFO L273 TraceCheckUtils]: 27: Hoare triple {12165#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {12158#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:57:46,178 INFO L273 TraceCheckUtils]: 26: Hoare triple {12165#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {12165#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:57:46,179 INFO L273 TraceCheckUtils]: 25: Hoare triple {12172#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {12165#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:57:46,180 INFO L273 TraceCheckUtils]: 24: Hoare triple {12172#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {12172#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:57:46,181 INFO L273 TraceCheckUtils]: 23: Hoare triple {12179#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {12172#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:57:46,181 INFO L273 TraceCheckUtils]: 22: Hoare triple {12179#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {12179#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:57:46,182 INFO L273 TraceCheckUtils]: 21: Hoare triple {12186#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {12179#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:57:46,183 INFO L273 TraceCheckUtils]: 20: Hoare triple {12186#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {12186#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:57:46,184 INFO L273 TraceCheckUtils]: 19: Hoare triple {12193#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {12186#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:57:46,185 INFO L273 TraceCheckUtils]: 18: Hoare triple {12193#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {12193#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 12:57:46,186 INFO L273 TraceCheckUtils]: 17: Hoare triple {12200#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12193#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 12:57:46,186 INFO L273 TraceCheckUtils]: 16: Hoare triple {12200#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {12200#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 12:57:46,187 INFO L273 TraceCheckUtils]: 15: Hoare triple {12207#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12200#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 12:57:46,188 INFO L273 TraceCheckUtils]: 14: Hoare triple {12207#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {12207#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 12:57:46,189 INFO L273 TraceCheckUtils]: 13: Hoare triple {12214#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12207#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 12:57:46,190 INFO L273 TraceCheckUtils]: 12: Hoare triple {12214#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {12214#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 12:57:46,191 INFO L273 TraceCheckUtils]: 11: Hoare triple {12221#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {12214#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 12:57:46,191 INFO L273 TraceCheckUtils]: 10: Hoare triple {12221#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {12221#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 12:57:46,192 INFO L273 TraceCheckUtils]: 9: Hoare triple {12228#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12221#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 12:57:46,193 INFO L273 TraceCheckUtils]: 8: Hoare triple {12228#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {12228#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 12:57:46,194 INFO L273 TraceCheckUtils]: 7: Hoare triple {12235#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {12228#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 12:57:46,194 INFO L273 TraceCheckUtils]: 6: Hoare triple {12235#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {12235#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 12:57:46,195 INFO L273 TraceCheckUtils]: 5: Hoare triple {12242#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {12235#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 12:57:46,196 INFO L273 TraceCheckUtils]: 4: Hoare triple {12242#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {12242#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 12:57:46,197 INFO L273 TraceCheckUtils]: 3: Hoare triple {12249#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {12242#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 12:57:46,198 INFO L273 TraceCheckUtils]: 2: Hoare triple {12249#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {12249#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 12:57:46,199 INFO L273 TraceCheckUtils]: 1: Hoare triple {12256#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12249#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 12:57:46,200 INFO L273 TraceCheckUtils]: 0: Hoare triple {11800#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {12256#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 12:57:46,215 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:57:46,233 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:57:46,234 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 95 [2019-02-27 12:57:46,234 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:57:46,234 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 61 [2019-02-27 12:57:46,234 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:57:46,235 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 65 states. [2019-02-27 12:57:46,373 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 121 edges. 121 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:57:46,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 65 states [2019-02-27 12:57:46,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2019-02-27 12:57:46,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1192, Invalid=8120, Unknown=0, NotChecked=0, Total=9312 [2019-02-27 12:57:46,375 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand 65 states. [2019-02-27 12:57:51,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:57:51,671 INFO L93 Difference]: Finished difference Result 66 states and 66 transitions. [2019-02-27 12:57:51,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-02-27 12:57:51,671 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 61 [2019-02-27 12:57:51,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:57:51,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-02-27 12:57:51,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 66 transitions. [2019-02-27 12:57:51,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-02-27 12:57:51,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 66 transitions. [2019-02-27 12:57:51,673 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 34 states and 66 transitions. [2019-02-27 12:57:51,743 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 66 edges. 66 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:57:51,744 INFO L225 Difference]: With dead ends: 66 [2019-02-27 12:57:51,744 INFO L226 Difference]: Without dead ends: 65 [2019-02-27 12:57:51,745 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2108 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=1192, Invalid=8120, Unknown=0, NotChecked=0, Total=9312 [2019-02-27 12:57:51,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2019-02-27 12:57:51,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 64. [2019-02-27 12:57:51,854 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:57:51,854 INFO L82 GeneralOperation]: Start isEquivalent. First operand 65 states. Second operand 64 states. [2019-02-27 12:57:51,854 INFO L74 IsIncluded]: Start isIncluded. First operand 65 states. Second operand 64 states. [2019-02-27 12:57:51,854 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 64 states. [2019-02-27 12:57:51,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:57:51,855 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2019-02-27 12:57:51,855 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 65 transitions. [2019-02-27 12:57:51,856 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:57:51,856 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:57:51,856 INFO L74 IsIncluded]: Start isIncluded. First operand 64 states. Second operand 65 states. [2019-02-27 12:57:51,856 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 65 states. [2019-02-27 12:57:51,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:57:51,857 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2019-02-27 12:57:51,857 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 65 transitions. [2019-02-27 12:57:51,857 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:57:51,857 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:57:51,858 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:57:51,858 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:57:51,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-02-27 12:57:51,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 64 transitions. [2019-02-27 12:57:51,859 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 64 transitions. Word has length 61 [2019-02-27 12:57:51,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:57:51,859 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 64 transitions. [2019-02-27 12:57:51,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has 65 states. [2019-02-27 12:57:51,859 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 64 transitions. [2019-02-27 12:57:51,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-02-27 12:57:51,860 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:57:51,860 INFO L402 BasicCegarLoop]: trace histogram [31, 30, 1, 1] [2019-02-27 12:57:51,860 INFO L423 AbstractCegarLoop]: === Iteration 31 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:57:51,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:57:51,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1889766628, now seen corresponding path program 30 times [2019-02-27 12:57:51,861 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:57:51,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:57:51,861 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 12:57:51,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:57:51,862 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:57:51,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:57:53,484 INFO L273 TraceCheckUtils]: 0: Hoare triple {12582#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {12584#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 0)))} is VALID [2019-02-27 12:57:53,485 INFO L273 TraceCheckUtils]: 1: Hoare triple {12584#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 0)))} assume a[i] != 23;i := i + 4; {12585#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 30 main_n)) (or (<= main_n 30) (<= main_i 4)))} is VALID [2019-02-27 12:57:53,486 INFO L273 TraceCheckUtils]: 2: Hoare triple {12585#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 30 main_n)) (or (<= main_n 30) (<= main_i 4)))} assume i <= n * 4; {12585#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 30 main_n)) (or (<= main_n 30) (<= main_i 4)))} is VALID [2019-02-27 12:57:53,487 INFO L273 TraceCheckUtils]: 3: Hoare triple {12585#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 30 main_n)) (or (<= main_n 30) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {12586#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 8)))} is VALID [2019-02-27 12:57:53,488 INFO L273 TraceCheckUtils]: 4: Hoare triple {12586#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 8)))} assume i <= n * 4; {12586#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 8)))} is VALID [2019-02-27 12:57:53,489 INFO L273 TraceCheckUtils]: 5: Hoare triple {12586#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 8)))} assume a[i] != 23;i := i + 4; {12587#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 12)))} is VALID [2019-02-27 12:57:53,489 INFO L273 TraceCheckUtils]: 6: Hoare triple {12587#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 12)))} assume i <= n * 4; {12587#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 12)))} is VALID [2019-02-27 12:57:53,490 INFO L273 TraceCheckUtils]: 7: Hoare triple {12587#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {12588#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 16)))} is VALID [2019-02-27 12:57:53,491 INFO L273 TraceCheckUtils]: 8: Hoare triple {12588#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 16)))} assume i <= n * 4; {12588#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 16)))} is VALID [2019-02-27 12:57:53,492 INFO L273 TraceCheckUtils]: 9: Hoare triple {12588#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {12589#(and (or (<= main_n 30) (<= main_i 20)) (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-02-27 12:57:53,493 INFO L273 TraceCheckUtils]: 10: Hoare triple {12589#(and (or (<= main_n 30) (<= main_i 20)) (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume i <= n * 4; {12589#(and (or (<= main_n 30) (<= main_i 20)) (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-02-27 12:57:53,494 INFO L273 TraceCheckUtils]: 11: Hoare triple {12589#(and (or (<= main_n 30) (<= main_i 20)) (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12590#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 24)))} is VALID [2019-02-27 12:57:53,495 INFO L273 TraceCheckUtils]: 12: Hoare triple {12590#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 24)))} assume i <= n * 4; {12590#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 24)))} is VALID [2019-02-27 12:57:53,496 INFO L273 TraceCheckUtils]: 13: Hoare triple {12590#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 24)))} assume a[i] != 23;i := i + 4; {12591#(and (or (<= main_n 30) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-02-27 12:57:53,497 INFO L273 TraceCheckUtils]: 14: Hoare triple {12591#(and (or (<= main_n 30) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume i <= n * 4; {12591#(and (or (<= main_n 30) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-02-27 12:57:53,498 INFO L273 TraceCheckUtils]: 15: Hoare triple {12591#(and (or (<= main_n 30) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12592#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 32) (<= main_n 30)))} is VALID [2019-02-27 12:57:53,498 INFO L273 TraceCheckUtils]: 16: Hoare triple {12592#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 32) (<= main_n 30)))} assume i <= n * 4; {12592#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 32) (<= main_n 30)))} is VALID [2019-02-27 12:57:53,499 INFO L273 TraceCheckUtils]: 17: Hoare triple {12592#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 32) (<= main_n 30)))} assume a[i] != 23;i := i + 4; {12593#(and (or (<= main_i 36) (<= main_n 30)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 30 main_n)))} is VALID [2019-02-27 12:57:53,500 INFO L273 TraceCheckUtils]: 18: Hoare triple {12593#(and (or (<= main_i 36) (<= main_n 30)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 30 main_n)))} assume i <= n * 4; {12593#(and (or (<= main_i 36) (<= main_n 30)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 30 main_n)))} is VALID [2019-02-27 12:57:53,501 INFO L273 TraceCheckUtils]: 19: Hoare triple {12593#(and (or (<= main_i 36) (<= main_n 30)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12594#(and (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 40)))} is VALID [2019-02-27 12:57:53,502 INFO L273 TraceCheckUtils]: 20: Hoare triple {12594#(and (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 40)))} assume i <= n * 4; {12594#(and (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 40)))} is VALID [2019-02-27 12:57:53,503 INFO L273 TraceCheckUtils]: 21: Hoare triple {12594#(and (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 40)))} assume a[i] != 23;i := i + 4; {12595#(and (or (< 30 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 30) (<= main_i 44)))} is VALID [2019-02-27 12:57:53,504 INFO L273 TraceCheckUtils]: 22: Hoare triple {12595#(and (or (< 30 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 30) (<= main_i 44)))} assume i <= n * 4; {12595#(and (or (< 30 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 30) (<= main_i 44)))} is VALID [2019-02-27 12:57:53,505 INFO L273 TraceCheckUtils]: 23: Hoare triple {12595#(and (or (< 30 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 30) (<= main_i 44)))} assume a[i] != 23;i := i + 4; {12596#(and (or (<= main_n 30) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-02-27 12:57:53,506 INFO L273 TraceCheckUtils]: 24: Hoare triple {12596#(and (or (<= main_n 30) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume i <= n * 4; {12596#(and (or (<= main_n 30) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-02-27 12:57:53,507 INFO L273 TraceCheckUtils]: 25: Hoare triple {12596#(and (or (<= main_n 30) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12597#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 52) (<= main_n 30)))} is VALID [2019-02-27 12:57:53,507 INFO L273 TraceCheckUtils]: 26: Hoare triple {12597#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 52) (<= main_n 30)))} assume i <= n * 4; {12597#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 52) (<= main_n 30)))} is VALID [2019-02-27 12:57:53,509 INFO L273 TraceCheckUtils]: 27: Hoare triple {12597#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 52) (<= main_n 30)))} assume a[i] != 23;i := i + 4; {12598#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 56)))} is VALID [2019-02-27 12:57:53,509 INFO L273 TraceCheckUtils]: 28: Hoare triple {12598#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 56)))} assume i <= n * 4; {12598#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 56)))} is VALID [2019-02-27 12:57:53,510 INFO L273 TraceCheckUtils]: 29: Hoare triple {12598#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 56)))} assume a[i] != 23;i := i + 4; {12599#(and (or (< 30 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 30) (<= main_i 60)))} is VALID [2019-02-27 12:57:53,511 INFO L273 TraceCheckUtils]: 30: Hoare triple {12599#(and (or (< 30 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 30) (<= main_i 60)))} assume i <= n * 4; {12599#(and (or (< 30 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 30) (<= main_i 60)))} is VALID [2019-02-27 12:57:53,512 INFO L273 TraceCheckUtils]: 31: Hoare triple {12599#(and (or (< 30 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 30) (<= main_i 60)))} assume a[i] != 23;i := i + 4; {12600#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 64)))} is VALID [2019-02-27 12:57:53,513 INFO L273 TraceCheckUtils]: 32: Hoare triple {12600#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 64)))} assume i <= n * 4; {12600#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 64)))} is VALID [2019-02-27 12:57:53,514 INFO L273 TraceCheckUtils]: 33: Hoare triple {12600#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 64)))} assume a[i] != 23;i := i + 4; {12601#(and (or (<= main_n 30) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-02-27 12:57:53,515 INFO L273 TraceCheckUtils]: 34: Hoare triple {12601#(and (or (<= main_n 30) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume i <= n * 4; {12601#(and (or (<= main_n 30) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-02-27 12:57:53,516 INFO L273 TraceCheckUtils]: 35: Hoare triple {12601#(and (or (<= main_n 30) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12602#(and (or (<= main_n 30) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-02-27 12:57:53,516 INFO L273 TraceCheckUtils]: 36: Hoare triple {12602#(and (or (<= main_n 30) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume i <= n * 4; {12602#(and (or (<= main_n 30) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-02-27 12:57:53,518 INFO L273 TraceCheckUtils]: 37: Hoare triple {12602#(and (or (<= main_n 30) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12603#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 76) (<= main_n 30)))} is VALID [2019-02-27 12:57:53,518 INFO L273 TraceCheckUtils]: 38: Hoare triple {12603#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 76) (<= main_n 30)))} assume i <= n * 4; {12603#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 76) (<= main_n 30)))} is VALID [2019-02-27 12:57:53,519 INFO L273 TraceCheckUtils]: 39: Hoare triple {12603#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 76) (<= main_n 30)))} assume a[i] != 23;i := i + 4; {12604#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 80)))} is VALID [2019-02-27 12:57:53,520 INFO L273 TraceCheckUtils]: 40: Hoare triple {12604#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 80)))} assume i <= n * 4; {12604#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 80)))} is VALID [2019-02-27 12:57:53,521 INFO L273 TraceCheckUtils]: 41: Hoare triple {12604#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 80)))} assume a[i] != 23;i := i + 4; {12605#(and (or (<= main_n 30) (<= main_i 84)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 30 main_n)))} is VALID [2019-02-27 12:57:53,522 INFO L273 TraceCheckUtils]: 42: Hoare triple {12605#(and (or (<= main_n 30) (<= main_i 84)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 30 main_n)))} assume i <= n * 4; {12605#(and (or (<= main_n 30) (<= main_i 84)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 30 main_n)))} is VALID [2019-02-27 12:57:53,523 INFO L273 TraceCheckUtils]: 43: Hoare triple {12605#(and (or (<= main_n 30) (<= main_i 84)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12606#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 88) (<= main_n 30)))} is VALID [2019-02-27 12:57:53,524 INFO L273 TraceCheckUtils]: 44: Hoare triple {12606#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 88) (<= main_n 30)))} assume i <= n * 4; {12606#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 88) (<= main_n 30)))} is VALID [2019-02-27 12:57:53,525 INFO L273 TraceCheckUtils]: 45: Hoare triple {12606#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 88) (<= main_n 30)))} assume a[i] != 23;i := i + 4; {12607#(and (or (< 30 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 30)))} is VALID [2019-02-27 12:57:53,525 INFO L273 TraceCheckUtils]: 46: Hoare triple {12607#(and (or (< 30 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 30)))} assume i <= n * 4; {12607#(and (or (< 30 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 30)))} is VALID [2019-02-27 12:57:53,527 INFO L273 TraceCheckUtils]: 47: Hoare triple {12607#(and (or (< 30 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 30)))} assume a[i] != 23;i := i + 4; {12608#(and (or (<= main_i 96) (<= main_n 30)) (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-02-27 12:57:53,527 INFO L273 TraceCheckUtils]: 48: Hoare triple {12608#(and (or (<= main_i 96) (<= main_n 30)) (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume i <= n * 4; {12608#(and (or (<= main_i 96) (<= main_n 30)) (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-02-27 12:57:53,528 INFO L273 TraceCheckUtils]: 49: Hoare triple {12608#(and (or (<= main_i 96) (<= main_n 30)) (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12609#(and (or (<= main_i 100) (<= main_n 30)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-02-27 12:57:53,529 INFO L273 TraceCheckUtils]: 50: Hoare triple {12609#(and (or (<= main_i 100) (<= main_n 30)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume i <= n * 4; {12609#(and (or (<= main_i 100) (<= main_n 30)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-02-27 12:57:53,530 INFO L273 TraceCheckUtils]: 51: Hoare triple {12609#(and (or (<= main_i 100) (<= main_n 30)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12610#(and (or (<= main_i 104) (<= main_n 30)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-02-27 12:57:53,531 INFO L273 TraceCheckUtils]: 52: Hoare triple {12610#(and (or (<= main_i 104) (<= main_n 30)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume i <= n * 4; {12610#(and (or (<= main_i 104) (<= main_n 30)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-02-27 12:57:53,532 INFO L273 TraceCheckUtils]: 53: Hoare triple {12610#(and (or (<= main_i 104) (<= main_n 30)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12611#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 108)))} is VALID [2019-02-27 12:57:53,533 INFO L273 TraceCheckUtils]: 54: Hoare triple {12611#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 108)))} assume i <= n * 4; {12611#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 108)))} is VALID [2019-02-27 12:57:53,534 INFO L273 TraceCheckUtils]: 55: Hoare triple {12611#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 108)))} assume a[i] != 23;i := i + 4; {12612#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 30 main_n)) (or (<= main_n 30) (<= main_i 112)))} is VALID [2019-02-27 12:57:53,535 INFO L273 TraceCheckUtils]: 56: Hoare triple {12612#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 30 main_n)) (or (<= main_n 30) (<= main_i 112)))} assume i <= n * 4; {12612#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 30 main_n)) (or (<= main_n 30) (<= main_i 112)))} is VALID [2019-02-27 12:57:53,536 INFO L273 TraceCheckUtils]: 57: Hoare triple {12612#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 30 main_n)) (or (<= main_n 30) (<= main_i 112)))} assume a[i] != 23;i := i + 4; {12613#(and (or (<= main_n 30) (<= main_i 116)) (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-02-27 12:57:53,537 INFO L273 TraceCheckUtils]: 58: Hoare triple {12613#(and (or (<= main_n 30) (<= main_i 116)) (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume i <= n * 4; {12613#(and (or (<= main_n 30) (<= main_i 116)) (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2019-02-27 12:57:53,538 INFO L273 TraceCheckUtils]: 59: Hoare triple {12613#(and (or (<= main_n 30) (<= main_i 116)) (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12614#(and (or (<= main_n 30) (<= main_i 120)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 30 main_n)))} is VALID [2019-02-27 12:57:53,539 INFO L273 TraceCheckUtils]: 60: Hoare triple {12614#(and (or (<= main_n 30) (<= main_i 120)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 30 main_n)))} assume i <= n * 4; {12615#(and (<= main_i 120) (or (and (= (* 4 main_n) main_i) (= 23 (select main_a main_i))) (< 30 main_n)))} is VALID [2019-02-27 12:57:53,540 INFO L273 TraceCheckUtils]: 61: Hoare triple {12615#(and (<= main_i 120) (or (and (= (* 4 main_n) main_i) (= 23 (select main_a main_i))) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12616#(and (<= main_i 124) (< 30 main_n))} is VALID [2019-02-27 12:57:53,541 INFO L273 TraceCheckUtils]: 62: Hoare triple {12616#(and (<= main_i 124) (< 30 main_n))} assume !(i <= n * 4); {12583#false} is VALID [2019-02-27 12:57:53,560 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 0 proven. 930 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:57:53,560 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:57:53,561 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:57:53,561 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:57:53,561 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:57:53,561 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:57:53,561 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:57:53,570 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-27 12:57:53,571 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-27 12:57:53,590 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-27 12:57:53,590 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 12:57:53,592 WARN L254 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 67 conjunts are in the unsatisfiable core [2019-02-27 12:57:53,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:57:53,604 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:57:53,618 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:57:53,620 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:57:53,628 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:57:53,628 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:57:53,629 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:57:53,630 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_34]. (and (= (store v_main_a_34 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-27 12:57:53,630 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:57:55,303 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:57:55,305 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:57:55,311 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:57:55,311 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:57:55,314 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:57:55,314 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 120 .cse0) (not (= (select main_a 120) 23)) (<= main_i 124) (= 23 (select main_a .cse0)))) [2019-02-27 12:57:55,314 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 120 .cse0) (<= main_i 124) (not (= 120 .cse0)))) [2019-02-27 12:57:55,352 INFO L273 TraceCheckUtils]: 0: Hoare triple {12582#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {12620#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,353 INFO L273 TraceCheckUtils]: 1: Hoare triple {12620#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12624#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:57:55,353 INFO L273 TraceCheckUtils]: 2: Hoare triple {12624#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {12624#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:57:55,354 INFO L273 TraceCheckUtils]: 3: Hoare triple {12624#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {12631#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,354 INFO L273 TraceCheckUtils]: 4: Hoare triple {12631#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12631#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,354 INFO L273 TraceCheckUtils]: 5: Hoare triple {12631#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12638#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:57:55,355 INFO L273 TraceCheckUtils]: 6: Hoare triple {12638#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {12638#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:57:55,356 INFO L273 TraceCheckUtils]: 7: Hoare triple {12638#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {12645#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,357 INFO L273 TraceCheckUtils]: 8: Hoare triple {12645#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12645#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,357 INFO L273 TraceCheckUtils]: 9: Hoare triple {12645#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12652#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,358 INFO L273 TraceCheckUtils]: 10: Hoare triple {12652#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12652#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,359 INFO L273 TraceCheckUtils]: 11: Hoare triple {12652#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12659#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,360 INFO L273 TraceCheckUtils]: 12: Hoare triple {12659#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12659#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,360 INFO L273 TraceCheckUtils]: 13: Hoare triple {12659#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12666#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,361 INFO L273 TraceCheckUtils]: 14: Hoare triple {12666#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12666#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,362 INFO L273 TraceCheckUtils]: 15: Hoare triple {12666#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12673#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,362 INFO L273 TraceCheckUtils]: 16: Hoare triple {12673#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12673#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,363 INFO L273 TraceCheckUtils]: 17: Hoare triple {12673#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12680#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,364 INFO L273 TraceCheckUtils]: 18: Hoare triple {12680#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12680#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,364 INFO L273 TraceCheckUtils]: 19: Hoare triple {12680#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12687#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,365 INFO L273 TraceCheckUtils]: 20: Hoare triple {12687#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12687#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,366 INFO L273 TraceCheckUtils]: 21: Hoare triple {12687#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12694#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,366 INFO L273 TraceCheckUtils]: 22: Hoare triple {12694#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12694#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,367 INFO L273 TraceCheckUtils]: 23: Hoare triple {12694#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12701#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,368 INFO L273 TraceCheckUtils]: 24: Hoare triple {12701#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12701#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,368 INFO L273 TraceCheckUtils]: 25: Hoare triple {12701#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12708#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,369 INFO L273 TraceCheckUtils]: 26: Hoare triple {12708#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12708#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,370 INFO L273 TraceCheckUtils]: 27: Hoare triple {12708#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12715#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,370 INFO L273 TraceCheckUtils]: 28: Hoare triple {12715#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12715#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,371 INFO L273 TraceCheckUtils]: 29: Hoare triple {12715#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12722#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,372 INFO L273 TraceCheckUtils]: 30: Hoare triple {12722#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12722#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,372 INFO L273 TraceCheckUtils]: 31: Hoare triple {12722#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12729#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,373 INFO L273 TraceCheckUtils]: 32: Hoare triple {12729#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12729#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,374 INFO L273 TraceCheckUtils]: 33: Hoare triple {12729#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12736#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,375 INFO L273 TraceCheckUtils]: 34: Hoare triple {12736#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12736#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,375 INFO L273 TraceCheckUtils]: 35: Hoare triple {12736#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12743#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,376 INFO L273 TraceCheckUtils]: 36: Hoare triple {12743#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12743#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,377 INFO L273 TraceCheckUtils]: 37: Hoare triple {12743#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12750#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,377 INFO L273 TraceCheckUtils]: 38: Hoare triple {12750#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12750#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,378 INFO L273 TraceCheckUtils]: 39: Hoare triple {12750#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12757#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:57:55,379 INFO L273 TraceCheckUtils]: 40: Hoare triple {12757#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {12757#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:57:55,380 INFO L273 TraceCheckUtils]: 41: Hoare triple {12757#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {12764#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,380 INFO L273 TraceCheckUtils]: 42: Hoare triple {12764#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12764#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,381 INFO L273 TraceCheckUtils]: 43: Hoare triple {12764#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12771#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,382 INFO L273 TraceCheckUtils]: 44: Hoare triple {12771#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12771#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,383 INFO L273 TraceCheckUtils]: 45: Hoare triple {12771#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12778#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,383 INFO L273 TraceCheckUtils]: 46: Hoare triple {12778#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12778#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,384 INFO L273 TraceCheckUtils]: 47: Hoare triple {12778#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12785#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,385 INFO L273 TraceCheckUtils]: 48: Hoare triple {12785#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12785#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,386 INFO L273 TraceCheckUtils]: 49: Hoare triple {12785#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12792#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,386 INFO L273 TraceCheckUtils]: 50: Hoare triple {12792#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12792#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,387 INFO L273 TraceCheckUtils]: 51: Hoare triple {12792#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12799#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,388 INFO L273 TraceCheckUtils]: 52: Hoare triple {12799#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12799#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,388 INFO L273 TraceCheckUtils]: 53: Hoare triple {12799#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12806#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,389 INFO L273 TraceCheckUtils]: 54: Hoare triple {12806#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12806#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,390 INFO L273 TraceCheckUtils]: 55: Hoare triple {12806#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12813#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,390 INFO L273 TraceCheckUtils]: 56: Hoare triple {12813#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12813#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,391 INFO L273 TraceCheckUtils]: 57: Hoare triple {12813#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12820#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,392 INFO L273 TraceCheckUtils]: 58: Hoare triple {12820#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12820#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,393 INFO L273 TraceCheckUtils]: 59: Hoare triple {12820#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12827#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,393 INFO L273 TraceCheckUtils]: 60: Hoare triple {12827#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12831#(and (<= main_i (* 4 main_n)) (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:57:55,394 INFO L273 TraceCheckUtils]: 61: Hoare triple {12831#(and (<= main_i (* 4 main_n)) (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12616#(and (<= main_i 124) (< 30 main_n))} is VALID [2019-02-27 12:57:55,395 INFO L273 TraceCheckUtils]: 62: Hoare triple {12616#(and (<= main_i 124) (< 30 main_n))} assume !(i <= n * 4); {12583#false} is VALID [2019-02-27 12:57:55,405 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 0 proven. 930 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:57:55,406 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:57:58,586 INFO L273 TraceCheckUtils]: 62: Hoare triple {12838#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {12583#false} is VALID [2019-02-27 12:57:58,587 INFO L273 TraceCheckUtils]: 61: Hoare triple {12842#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {12838#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:57:58,588 INFO L273 TraceCheckUtils]: 60: Hoare triple {12846#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {12842#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:57:58,589 INFO L273 TraceCheckUtils]: 59: Hoare triple {12850#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {12846#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:57:58,590 INFO L273 TraceCheckUtils]: 58: Hoare triple {12850#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {12850#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:57:58,591 INFO L273 TraceCheckUtils]: 57: Hoare triple {12857#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {12850#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:57:58,591 INFO L273 TraceCheckUtils]: 56: Hoare triple {12857#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {12857#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:57:58,592 INFO L273 TraceCheckUtils]: 55: Hoare triple {12864#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {12857#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:57:58,593 INFO L273 TraceCheckUtils]: 54: Hoare triple {12864#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {12864#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:57:58,594 INFO L273 TraceCheckUtils]: 53: Hoare triple {12871#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {12864#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:57:58,594 INFO L273 TraceCheckUtils]: 52: Hoare triple {12871#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {12871#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:57:58,596 INFO L273 TraceCheckUtils]: 51: Hoare triple {12878#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12871#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:57:58,596 INFO L273 TraceCheckUtils]: 50: Hoare triple {12878#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {12878#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:57:58,597 INFO L273 TraceCheckUtils]: 49: Hoare triple {12885#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {12878#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:57:58,598 INFO L273 TraceCheckUtils]: 48: Hoare triple {12885#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {12885#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:57:58,599 INFO L273 TraceCheckUtils]: 47: Hoare triple {12892#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12885#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:57:58,599 INFO L273 TraceCheckUtils]: 46: Hoare triple {12892#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {12892#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:57:58,600 INFO L273 TraceCheckUtils]: 45: Hoare triple {12899#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12892#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:57:58,601 INFO L273 TraceCheckUtils]: 44: Hoare triple {12899#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {12899#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:57:58,602 INFO L273 TraceCheckUtils]: 43: Hoare triple {12906#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12899#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:57:58,602 INFO L273 TraceCheckUtils]: 42: Hoare triple {12906#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {12906#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:57:58,603 INFO L273 TraceCheckUtils]: 41: Hoare triple {12913#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {12906#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:57:58,604 INFO L273 TraceCheckUtils]: 40: Hoare triple {12913#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {12913#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:57:58,605 INFO L273 TraceCheckUtils]: 39: Hoare triple {12920#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12913#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:57:58,606 INFO L273 TraceCheckUtils]: 38: Hoare triple {12920#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {12920#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:57:58,607 INFO L273 TraceCheckUtils]: 37: Hoare triple {12927#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12920#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:57:58,607 INFO L273 TraceCheckUtils]: 36: Hoare triple {12927#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {12927#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:57:58,608 INFO L273 TraceCheckUtils]: 35: Hoare triple {12934#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {12927#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:57:58,609 INFO L273 TraceCheckUtils]: 34: Hoare triple {12934#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {12934#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:57:58,610 INFO L273 TraceCheckUtils]: 33: Hoare triple {12941#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12934#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:57:58,610 INFO L273 TraceCheckUtils]: 32: Hoare triple {12941#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {12941#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:57:58,611 INFO L273 TraceCheckUtils]: 31: Hoare triple {12948#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {12941#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:57:58,612 INFO L273 TraceCheckUtils]: 30: Hoare triple {12948#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {12948#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:57:58,613 INFO L273 TraceCheckUtils]: 29: Hoare triple {12955#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {12948#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:57:58,613 INFO L273 TraceCheckUtils]: 28: Hoare triple {12955#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {12955#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:57:58,614 INFO L273 TraceCheckUtils]: 27: Hoare triple {12962#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {12955#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:57:58,615 INFO L273 TraceCheckUtils]: 26: Hoare triple {12962#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {12962#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:57:58,616 INFO L273 TraceCheckUtils]: 25: Hoare triple {12969#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {12962#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:57:58,617 INFO L273 TraceCheckUtils]: 24: Hoare triple {12969#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {12969#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:57:58,618 INFO L273 TraceCheckUtils]: 23: Hoare triple {12976#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {12969#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:57:58,618 INFO L273 TraceCheckUtils]: 22: Hoare triple {12976#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {12976#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:57:58,619 INFO L273 TraceCheckUtils]: 21: Hoare triple {12983#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {12976#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:57:58,620 INFO L273 TraceCheckUtils]: 20: Hoare triple {12983#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {12983#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 12:57:58,621 INFO L273 TraceCheckUtils]: 19: Hoare triple {12990#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12983#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 12:57:58,621 INFO L273 TraceCheckUtils]: 18: Hoare triple {12990#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {12990#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 12:57:58,622 INFO L273 TraceCheckUtils]: 17: Hoare triple {12997#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12990#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 12:57:58,623 INFO L273 TraceCheckUtils]: 16: Hoare triple {12997#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {12997#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 12:57:58,624 INFO L273 TraceCheckUtils]: 15: Hoare triple {13004#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12997#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 12:57:58,625 INFO L273 TraceCheckUtils]: 14: Hoare triple {13004#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {13004#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 12:57:58,626 INFO L273 TraceCheckUtils]: 13: Hoare triple {13011#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {13004#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 12:57:58,626 INFO L273 TraceCheckUtils]: 12: Hoare triple {13011#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {13011#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 12:57:58,627 INFO L273 TraceCheckUtils]: 11: Hoare triple {13018#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13011#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 12:57:58,628 INFO L273 TraceCheckUtils]: 10: Hoare triple {13018#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {13018#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 12:57:58,629 INFO L273 TraceCheckUtils]: 9: Hoare triple {13025#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {13018#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 12:57:58,629 INFO L273 TraceCheckUtils]: 8: Hoare triple {13025#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {13025#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 12:57:58,630 INFO L273 TraceCheckUtils]: 7: Hoare triple {13032#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {13025#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 12:57:58,631 INFO L273 TraceCheckUtils]: 6: Hoare triple {13032#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {13032#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 12:57:58,632 INFO L273 TraceCheckUtils]: 5: Hoare triple {13039#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {13032#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 12:57:58,632 INFO L273 TraceCheckUtils]: 4: Hoare triple {13039#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {13039#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 12:57:58,633 INFO L273 TraceCheckUtils]: 3: Hoare triple {13046#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13039#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 12:57:58,634 INFO L273 TraceCheckUtils]: 2: Hoare triple {13046#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {13046#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 12:57:58,635 INFO L273 TraceCheckUtils]: 1: Hoare triple {13053#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13046#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 12:57:58,636 INFO L273 TraceCheckUtils]: 0: Hoare triple {12582#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {13053#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 12:57:58,652 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 0 proven. 930 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:57:58,670 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:57:58,670 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 98 [2019-02-27 12:57:58,670 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:57:58,671 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 63 [2019-02-27 12:57:58,671 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:57:58,671 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 67 states. [2019-02-27 12:57:58,835 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 125 edges. 125 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:57:58,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 67 states [2019-02-27 12:57:58,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2019-02-27 12:57:58,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1262, Invalid=8638, Unknown=0, NotChecked=0, Total=9900 [2019-02-27 12:57:58,837 INFO L87 Difference]: Start difference. First operand 64 states and 64 transitions. Second operand 67 states. [2019-02-27 12:58:05,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:58:05,322 INFO L93 Difference]: Finished difference Result 68 states and 68 transitions. [2019-02-27 12:58:05,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-02-27 12:58:05,323 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 63 [2019-02-27 12:58:05,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:58:05,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2019-02-27 12:58:05,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 68 transitions. [2019-02-27 12:58:05,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2019-02-27 12:58:05,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 68 transitions. [2019-02-27 12:58:05,325 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 35 states and 68 transitions. [2019-02-27 12:58:05,398 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 68 edges. 68 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:58:05,399 INFO L225 Difference]: With dead ends: 68 [2019-02-27 12:58:05,399 INFO L226 Difference]: Without dead ends: 67 [2019-02-27 12:58:05,402 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2240 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=1262, Invalid=8638, Unknown=0, NotChecked=0, Total=9900 [2019-02-27 12:58:05,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2019-02-27 12:58:05,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66. [2019-02-27 12:58:05,464 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:58:05,464 INFO L82 GeneralOperation]: Start isEquivalent. First operand 67 states. Second operand 66 states. [2019-02-27 12:58:05,464 INFO L74 IsIncluded]: Start isIncluded. First operand 67 states. Second operand 66 states. [2019-02-27 12:58:05,464 INFO L87 Difference]: Start difference. First operand 67 states. Second operand 66 states. [2019-02-27 12:58:05,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:58:05,466 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2019-02-27 12:58:05,466 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 67 transitions. [2019-02-27 12:58:05,466 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:58:05,466 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:58:05,466 INFO L74 IsIncluded]: Start isIncluded. First operand 66 states. Second operand 67 states. [2019-02-27 12:58:05,466 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 67 states. [2019-02-27 12:58:05,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:58:05,467 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2019-02-27 12:58:05,468 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 67 transitions. [2019-02-27 12:58:05,468 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:58:05,468 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:58:05,468 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:58:05,468 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:58:05,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-02-27 12:58:05,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 66 transitions. [2019-02-27 12:58:05,469 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 66 transitions. Word has length 63 [2019-02-27 12:58:05,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:58:05,469 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 66 transitions. [2019-02-27 12:58:05,469 INFO L481 AbstractCegarLoop]: Interpolant automaton has 67 states. [2019-02-27 12:58:05,469 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 66 transitions. [2019-02-27 12:58:05,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-02-27 12:58:05,470 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:58:05,470 INFO L402 BasicCegarLoop]: trace histogram [32, 31, 1, 1] [2019-02-27 12:58:05,470 INFO L423 AbstractCegarLoop]: === Iteration 32 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:58:05,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:58:05,470 INFO L82 PathProgramCache]: Analyzing trace with hash 705437790, now seen corresponding path program 31 times [2019-02-27 12:58:05,470 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:58:05,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:58:05,471 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 12:58:05,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:58:05,472 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:58:05,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:58:07,120 INFO L273 TraceCheckUtils]: 0: Hoare triple {13389#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {13391#(and (or (<= main_n 31) (<= main_i 0)) (or (<= 0 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,122 INFO L273 TraceCheckUtils]: 1: Hoare triple {13391#(and (or (<= main_n 31) (<= main_i 0)) (or (<= 0 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13392#(and (or (<= main_n 31) (<= main_i 4)) (or (< 31 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,122 INFO L273 TraceCheckUtils]: 2: Hoare triple {13392#(and (or (<= main_n 31) (<= main_i 4)) (or (< 31 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13392#(and (or (<= main_n 31) (<= main_i 4)) (or (< 31 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,123 INFO L273 TraceCheckUtils]: 3: Hoare triple {13392#(and (or (<= main_n 31) (<= main_i 4)) (or (< 31 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13393#(and (or (< 31 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 31)))} is VALID [2019-02-27 12:58:07,124 INFO L273 TraceCheckUtils]: 4: Hoare triple {13393#(and (or (< 31 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 31)))} assume i <= n * 4; {13393#(and (or (< 31 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 31)))} is VALID [2019-02-27 12:58:07,125 INFO L273 TraceCheckUtils]: 5: Hoare triple {13393#(and (or (< 31 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 31)))} assume a[i] != 23;i := i + 4; {13394#(and (or (< 31 main_n) (<= 12 main_i)) (or (<= main_n 31) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,126 INFO L273 TraceCheckUtils]: 6: Hoare triple {13394#(and (or (< 31 main_n) (<= 12 main_i)) (or (<= main_n 31) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13394#(and (or (< 31 main_n) (<= 12 main_i)) (or (<= main_n 31) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,127 INFO L273 TraceCheckUtils]: 7: Hoare triple {13394#(and (or (< 31 main_n) (<= 12 main_i)) (or (<= main_n 31) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13395#(and (or (< 31 main_n) (<= 16 main_i)) (or (<= main_n 31) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,128 INFO L273 TraceCheckUtils]: 8: Hoare triple {13395#(and (or (< 31 main_n) (<= 16 main_i)) (or (<= main_n 31) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13395#(and (or (< 31 main_n) (<= 16 main_i)) (or (<= main_n 31) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,129 INFO L273 TraceCheckUtils]: 9: Hoare triple {13395#(and (or (< 31 main_n) (<= 16 main_i)) (or (<= main_n 31) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13396#(and (or (<= main_n 31) (<= main_i 20)) (or (< 31 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,130 INFO L273 TraceCheckUtils]: 10: Hoare triple {13396#(and (or (<= main_n 31) (<= main_i 20)) (or (< 31 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13396#(and (or (<= main_n 31) (<= main_i 20)) (or (< 31 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,131 INFO L273 TraceCheckUtils]: 11: Hoare triple {13396#(and (or (<= main_n 31) (<= main_i 20)) (or (< 31 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13397#(and (or (<= main_n 31) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))) (or (< 31 main_n) (<= 24 main_i)))} is VALID [2019-02-27 12:58:07,131 INFO L273 TraceCheckUtils]: 12: Hoare triple {13397#(and (or (<= main_n 31) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))) (or (< 31 main_n) (<= 24 main_i)))} assume i <= n * 4; {13397#(and (or (<= main_n 31) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))) (or (< 31 main_n) (<= 24 main_i)))} is VALID [2019-02-27 12:58:07,133 INFO L273 TraceCheckUtils]: 13: Hoare triple {13397#(and (or (<= main_n 31) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))) (or (< 31 main_n) (<= 24 main_i)))} assume a[i] != 23;i := i + 4; {13398#(and (or (<= main_n 31) (<= main_i 28)) (or (<= 28 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,133 INFO L273 TraceCheckUtils]: 14: Hoare triple {13398#(and (or (<= main_n 31) (<= main_i 28)) (or (<= 28 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13398#(and (or (<= main_n 31) (<= main_i 28)) (or (<= 28 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,134 INFO L273 TraceCheckUtils]: 15: Hoare triple {13398#(and (or (<= main_n 31) (<= main_i 28)) (or (<= 28 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13399#(and (or (<= main_i 32) (<= main_n 31)) (or (<= 32 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,136 INFO L273 TraceCheckUtils]: 16: Hoare triple {13399#(and (or (<= main_i 32) (<= main_n 31)) (or (<= 32 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13399#(and (or (<= main_i 32) (<= main_n 31)) (or (<= 32 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,140 INFO L273 TraceCheckUtils]: 17: Hoare triple {13399#(and (or (<= main_i 32) (<= main_n 31)) (or (<= 32 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13400#(and (or (< 31 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 31)))} is VALID [2019-02-27 12:58:07,140 INFO L273 TraceCheckUtils]: 18: Hoare triple {13400#(and (or (< 31 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 31)))} assume i <= n * 4; {13400#(and (or (< 31 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 31)))} is VALID [2019-02-27 12:58:07,142 INFO L273 TraceCheckUtils]: 19: Hoare triple {13400#(and (or (< 31 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 31)))} assume a[i] != 23;i := i + 4; {13401#(and (or (<= main_i 40) (<= main_n 31)) (or (<= 40 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,143 INFO L273 TraceCheckUtils]: 20: Hoare triple {13401#(and (or (<= main_i 40) (<= main_n 31)) (or (<= 40 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13401#(and (or (<= main_i 40) (<= main_n 31)) (or (<= 40 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,144 INFO L273 TraceCheckUtils]: 21: Hoare triple {13401#(and (or (<= main_i 40) (<= main_n 31)) (or (<= 40 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13402#(and (or (<= main_n 31) (<= main_i 44)) (or (<= 44 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,146 INFO L273 TraceCheckUtils]: 22: Hoare triple {13402#(and (or (<= main_n 31) (<= main_i 44)) (or (<= 44 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13402#(and (or (<= main_n 31) (<= main_i 44)) (or (<= 44 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,147 INFO L273 TraceCheckUtils]: 23: Hoare triple {13402#(and (or (<= main_n 31) (<= main_i 44)) (or (<= 44 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13403#(and (or (<= 48 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,147 INFO L273 TraceCheckUtils]: 24: Hoare triple {13403#(and (or (<= 48 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13403#(and (or (<= 48 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,148 INFO L273 TraceCheckUtils]: 25: Hoare triple {13403#(and (or (<= 48 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13404#(and (or (<= main_i 52) (<= main_n 31)) (or (< 31 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,148 INFO L273 TraceCheckUtils]: 26: Hoare triple {13404#(and (or (<= main_i 52) (<= main_n 31)) (or (< 31 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13404#(and (or (<= main_i 52) (<= main_n 31)) (or (< 31 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,150 INFO L273 TraceCheckUtils]: 27: Hoare triple {13404#(and (or (<= main_i 52) (<= main_n 31)) (or (< 31 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13405#(and (or (< 31 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 31) (<= main_i 56)))} is VALID [2019-02-27 12:58:07,151 INFO L273 TraceCheckUtils]: 28: Hoare triple {13405#(and (or (< 31 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 31) (<= main_i 56)))} assume i <= n * 4; {13405#(and (or (< 31 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 31) (<= main_i 56)))} is VALID [2019-02-27 12:58:07,152 INFO L273 TraceCheckUtils]: 29: Hoare triple {13405#(and (or (< 31 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 31) (<= main_i 56)))} assume a[i] != 23;i := i + 4; {13406#(and (or (< 31 main_n) (<= 60 main_i)) (or (<= main_n 31) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,153 INFO L273 TraceCheckUtils]: 30: Hoare triple {13406#(and (or (< 31 main_n) (<= 60 main_i)) (or (<= main_n 31) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13406#(and (or (< 31 main_n) (<= 60 main_i)) (or (<= main_n 31) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,154 INFO L273 TraceCheckUtils]: 31: Hoare triple {13406#(and (or (< 31 main_n) (<= 60 main_i)) (or (<= main_n 31) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13407#(and (or (<= main_i 64) (<= main_n 31)) (or (<= 64 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,155 INFO L273 TraceCheckUtils]: 32: Hoare triple {13407#(and (or (<= main_i 64) (<= main_n 31)) (or (<= 64 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13407#(and (or (<= main_i 64) (<= main_n 31)) (or (<= 64 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,160 INFO L273 TraceCheckUtils]: 33: Hoare triple {13407#(and (or (<= main_i 64) (<= main_n 31)) (or (<= 64 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13408#(and (or (<= main_n 31) (<= main_i 68)) (or (< 31 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,160 INFO L273 TraceCheckUtils]: 34: Hoare triple {13408#(and (or (<= main_n 31) (<= main_i 68)) (or (< 31 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13408#(and (or (<= main_n 31) (<= main_i 68)) (or (< 31 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,162 INFO L273 TraceCheckUtils]: 35: Hoare triple {13408#(and (or (<= main_n 31) (<= main_i 68)) (or (< 31 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13409#(and (or (<= 72 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,162 INFO L273 TraceCheckUtils]: 36: Hoare triple {13409#(and (or (<= 72 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13409#(and (or (<= 72 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,164 INFO L273 TraceCheckUtils]: 37: Hoare triple {13409#(and (or (<= 72 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13410#(and (or (<= 76 main_i) (< 31 main_n)) (or (<= main_i 76) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,164 INFO L273 TraceCheckUtils]: 38: Hoare triple {13410#(and (or (<= 76 main_i) (< 31 main_n)) (or (<= main_i 76) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13410#(and (or (<= 76 main_i) (< 31 main_n)) (or (<= main_i 76) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,166 INFO L273 TraceCheckUtils]: 39: Hoare triple {13410#(and (or (<= 76 main_i) (< 31 main_n)) (or (<= main_i 76) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13411#(and (or (< 31 main_n) (<= 80 main_i)) (or (<= main_n 31) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,166 INFO L273 TraceCheckUtils]: 40: Hoare triple {13411#(and (or (< 31 main_n) (<= 80 main_i)) (or (<= main_n 31) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13411#(and (or (< 31 main_n) (<= 80 main_i)) (or (<= main_n 31) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,168 INFO L273 TraceCheckUtils]: 41: Hoare triple {13411#(and (or (< 31 main_n) (<= 80 main_i)) (or (<= main_n 31) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13412#(and (or (<= main_i 84) (<= main_n 31)) (or (< 31 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,168 INFO L273 TraceCheckUtils]: 42: Hoare triple {13412#(and (or (<= main_i 84) (<= main_n 31)) (or (< 31 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13412#(and (or (<= main_i 84) (<= main_n 31)) (or (< 31 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,170 INFO L273 TraceCheckUtils]: 43: Hoare triple {13412#(and (or (<= main_i 84) (<= main_n 31)) (or (< 31 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13413#(and (or (< 31 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 31)))} is VALID [2019-02-27 12:58:07,170 INFO L273 TraceCheckUtils]: 44: Hoare triple {13413#(and (or (< 31 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 31)))} assume i <= n * 4; {13413#(and (or (< 31 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 31)))} is VALID [2019-02-27 12:58:07,172 INFO L273 TraceCheckUtils]: 45: Hoare triple {13413#(and (or (< 31 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 31)))} assume a[i] != 23;i := i + 4; {13414#(and (or (<= main_i 92) (<= main_n 31)) (or (< 31 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,172 INFO L273 TraceCheckUtils]: 46: Hoare triple {13414#(and (or (<= main_i 92) (<= main_n 31)) (or (< 31 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13414#(and (or (<= main_i 92) (<= main_n 31)) (or (< 31 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,174 INFO L273 TraceCheckUtils]: 47: Hoare triple {13414#(and (or (<= main_i 92) (<= main_n 31)) (or (< 31 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13415#(and (or (<= main_i 96) (<= main_n 31)) (or (< 31 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,174 INFO L273 TraceCheckUtils]: 48: Hoare triple {13415#(and (or (<= main_i 96) (<= main_n 31)) (or (< 31 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13415#(and (or (<= main_i 96) (<= main_n 31)) (or (< 31 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,176 INFO L273 TraceCheckUtils]: 49: Hoare triple {13415#(and (or (<= main_i 96) (<= main_n 31)) (or (< 31 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13416#(and (or (<= main_i 100) (<= main_n 31)) (or (< 31 main_n) (<= 100 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,176 INFO L273 TraceCheckUtils]: 50: Hoare triple {13416#(and (or (<= main_i 100) (<= main_n 31)) (or (< 31 main_n) (<= 100 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13416#(and (or (<= main_i 100) (<= main_n 31)) (or (< 31 main_n) (<= 100 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,178 INFO L273 TraceCheckUtils]: 51: Hoare triple {13416#(and (or (<= main_i 100) (<= main_n 31)) (or (< 31 main_n) (<= 100 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13417#(and (or (< 31 main_n) (<= 104 main_i)) (or (<= main_i 104) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,178 INFO L273 TraceCheckUtils]: 52: Hoare triple {13417#(and (or (< 31 main_n) (<= 104 main_i)) (or (<= main_i 104) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13417#(and (or (< 31 main_n) (<= 104 main_i)) (or (<= main_i 104) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,180 INFO L273 TraceCheckUtils]: 53: Hoare triple {13417#(and (or (< 31 main_n) (<= 104 main_i)) (or (<= main_i 104) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13418#(and (or (<= main_n 31) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))) (or (< 31 main_n) (<= 108 main_i)))} is VALID [2019-02-27 12:58:07,180 INFO L273 TraceCheckUtils]: 54: Hoare triple {13418#(and (or (<= main_n 31) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))) (or (< 31 main_n) (<= 108 main_i)))} assume i <= n * 4; {13418#(and (or (<= main_n 31) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))) (or (< 31 main_n) (<= 108 main_i)))} is VALID [2019-02-27 12:58:07,182 INFO L273 TraceCheckUtils]: 55: Hoare triple {13418#(and (or (<= main_n 31) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))) (or (< 31 main_n) (<= 108 main_i)))} assume a[i] != 23;i := i + 4; {13419#(and (or (< 31 main_n) (<= 112 main_i)) (or (<= main_n 31) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,182 INFO L273 TraceCheckUtils]: 56: Hoare triple {13419#(and (or (< 31 main_n) (<= 112 main_i)) (or (<= main_n 31) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13419#(and (or (< 31 main_n) (<= 112 main_i)) (or (<= main_n 31) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,184 INFO L273 TraceCheckUtils]: 57: Hoare triple {13419#(and (or (< 31 main_n) (<= 112 main_i)) (or (<= main_n 31) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13420#(and (or (<= 116 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,184 INFO L273 TraceCheckUtils]: 58: Hoare triple {13420#(and (or (<= 116 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13420#(and (or (<= 116 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,186 INFO L273 TraceCheckUtils]: 59: Hoare triple {13420#(and (or (<= 116 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13421#(and (or (<= 120 main_i) (< 31 main_n)) (or (<= main_i 120) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,186 INFO L273 TraceCheckUtils]: 60: Hoare triple {13421#(and (or (<= 120 main_i) (< 31 main_n)) (or (<= main_i 120) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13421#(and (or (<= 120 main_i) (< 31 main_n)) (or (<= main_i 120) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:07,188 INFO L273 TraceCheckUtils]: 61: Hoare triple {13421#(and (or (<= 120 main_i) (< 31 main_n)) (or (<= main_i 120) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13422#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 31) (<= main_i 124)) (or (<= (* 4 main_n) main_i) (< 31 main_n)))))} is VALID [2019-02-27 12:58:07,188 INFO L273 TraceCheckUtils]: 62: Hoare triple {13422#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 31) (<= main_i 124)) (or (<= (* 4 main_n) main_i) (< 31 main_n)))))} assume i <= n * 4; {13423#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 31 main_n) (<= main_i 124))))} is VALID [2019-02-27 12:58:07,190 INFO L273 TraceCheckUtils]: 63: Hoare triple {13423#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 31 main_n) (<= main_i 124))))} assume a[i] != 23;i := i + 4; {13424#(and (< 31 main_n) (<= main_i 128))} is VALID [2019-02-27 12:58:07,191 INFO L273 TraceCheckUtils]: 64: Hoare triple {13424#(and (< 31 main_n) (<= main_i 128))} assume !(i <= n * 4); {13390#false} is VALID [2019-02-27 12:58:07,209 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 992 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:58:07,209 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:58:07,209 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:58:07,209 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:58:07,209 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:58:07,209 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:58:07,209 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:58:07,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 12:58:07,219 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-27 12:58:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:58:07,238 WARN L254 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 69 conjunts are in the unsatisfiable core [2019-02-27 12:58:07,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:58:07,251 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:58:07,258 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:58:07,261 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:58:07,270 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:58:07,270 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:58:07,271 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:58:07,272 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_35]. (and (= (store v_main_a_35 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-27 12:58:07,272 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:58:09,298 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:58:09,301 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:58:09,307 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:58:09,307 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:58:09,310 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:58:09,310 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 124 .cse0) (not (= (select main_a 124) 23)) (<= main_i 128) (= 23 (select main_a .cse0)))) [2019-02-27 12:58:09,310 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 124 .cse0) (<= main_i 128) (not (= 124 .cse0)))) [2019-02-27 12:58:09,352 INFO L273 TraceCheckUtils]: 0: Hoare triple {13389#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {13428#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,353 INFO L273 TraceCheckUtils]: 1: Hoare triple {13428#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13432#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:58:09,353 INFO L273 TraceCheckUtils]: 2: Hoare triple {13432#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {13432#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:58:09,354 INFO L273 TraceCheckUtils]: 3: Hoare triple {13432#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {13439#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,355 INFO L273 TraceCheckUtils]: 4: Hoare triple {13439#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13439#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,355 INFO L273 TraceCheckUtils]: 5: Hoare triple {13439#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13446#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:58:09,356 INFO L273 TraceCheckUtils]: 6: Hoare triple {13446#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {13446#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:58:09,357 INFO L273 TraceCheckUtils]: 7: Hoare triple {13446#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {13453#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,358 INFO L273 TraceCheckUtils]: 8: Hoare triple {13453#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13453#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,358 INFO L273 TraceCheckUtils]: 9: Hoare triple {13453#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13460#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,359 INFO L273 TraceCheckUtils]: 10: Hoare triple {13460#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13460#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,360 INFO L273 TraceCheckUtils]: 11: Hoare triple {13460#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13467#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,361 INFO L273 TraceCheckUtils]: 12: Hoare triple {13467#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13467#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,361 INFO L273 TraceCheckUtils]: 13: Hoare triple {13467#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13474#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,362 INFO L273 TraceCheckUtils]: 14: Hoare triple {13474#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13474#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,363 INFO L273 TraceCheckUtils]: 15: Hoare triple {13474#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13481#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,363 INFO L273 TraceCheckUtils]: 16: Hoare triple {13481#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13481#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,364 INFO L273 TraceCheckUtils]: 17: Hoare triple {13481#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13488#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,365 INFO L273 TraceCheckUtils]: 18: Hoare triple {13488#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13488#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,366 INFO L273 TraceCheckUtils]: 19: Hoare triple {13488#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13495#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,366 INFO L273 TraceCheckUtils]: 20: Hoare triple {13495#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13495#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,367 INFO L273 TraceCheckUtils]: 21: Hoare triple {13495#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13502#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,368 INFO L273 TraceCheckUtils]: 22: Hoare triple {13502#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13502#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,369 INFO L273 TraceCheckUtils]: 23: Hoare triple {13502#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13509#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,369 INFO L273 TraceCheckUtils]: 24: Hoare triple {13509#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13509#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,370 INFO L273 TraceCheckUtils]: 25: Hoare triple {13509#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13516#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,371 INFO L273 TraceCheckUtils]: 26: Hoare triple {13516#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13516#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,372 INFO L273 TraceCheckUtils]: 27: Hoare triple {13516#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13523#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,372 INFO L273 TraceCheckUtils]: 28: Hoare triple {13523#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13523#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,373 INFO L273 TraceCheckUtils]: 29: Hoare triple {13523#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13530#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,374 INFO L273 TraceCheckUtils]: 30: Hoare triple {13530#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13530#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,374 INFO L273 TraceCheckUtils]: 31: Hoare triple {13530#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13537#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,375 INFO L273 TraceCheckUtils]: 32: Hoare triple {13537#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13537#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,376 INFO L273 TraceCheckUtils]: 33: Hoare triple {13537#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13544#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,377 INFO L273 TraceCheckUtils]: 34: Hoare triple {13544#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13544#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,377 INFO L273 TraceCheckUtils]: 35: Hoare triple {13544#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13551#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,378 INFO L273 TraceCheckUtils]: 36: Hoare triple {13551#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13551#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,379 INFO L273 TraceCheckUtils]: 37: Hoare triple {13551#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13558#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,379 INFO L273 TraceCheckUtils]: 38: Hoare triple {13558#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13558#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,380 INFO L273 TraceCheckUtils]: 39: Hoare triple {13558#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13565#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:58:09,381 INFO L273 TraceCheckUtils]: 40: Hoare triple {13565#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {13565#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:58:09,382 INFO L273 TraceCheckUtils]: 41: Hoare triple {13565#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {13572#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,382 INFO L273 TraceCheckUtils]: 42: Hoare triple {13572#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13572#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,383 INFO L273 TraceCheckUtils]: 43: Hoare triple {13572#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13579#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,384 INFO L273 TraceCheckUtils]: 44: Hoare triple {13579#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13579#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,385 INFO L273 TraceCheckUtils]: 45: Hoare triple {13579#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13586#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,385 INFO L273 TraceCheckUtils]: 46: Hoare triple {13586#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13586#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,386 INFO L273 TraceCheckUtils]: 47: Hoare triple {13586#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13593#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,387 INFO L273 TraceCheckUtils]: 48: Hoare triple {13593#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13593#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,388 INFO L273 TraceCheckUtils]: 49: Hoare triple {13593#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13600#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,388 INFO L273 TraceCheckUtils]: 50: Hoare triple {13600#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13600#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,389 INFO L273 TraceCheckUtils]: 51: Hoare triple {13600#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13607#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,390 INFO L273 TraceCheckUtils]: 52: Hoare triple {13607#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13607#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,390 INFO L273 TraceCheckUtils]: 53: Hoare triple {13607#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13614#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,391 INFO L273 TraceCheckUtils]: 54: Hoare triple {13614#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13614#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,392 INFO L273 TraceCheckUtils]: 55: Hoare triple {13614#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13621#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,392 INFO L273 TraceCheckUtils]: 56: Hoare triple {13621#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13621#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,393 INFO L273 TraceCheckUtils]: 57: Hoare triple {13621#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13628#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,394 INFO L273 TraceCheckUtils]: 58: Hoare triple {13628#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13628#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,394 INFO L273 TraceCheckUtils]: 59: Hoare triple {13628#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13635#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,395 INFO L273 TraceCheckUtils]: 60: Hoare triple {13635#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13635#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,396 INFO L273 TraceCheckUtils]: 61: Hoare triple {13635#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13642#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,397 INFO L273 TraceCheckUtils]: 62: Hoare triple {13642#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13646#(and (= main_i 124) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:09,398 INFO L273 TraceCheckUtils]: 63: Hoare triple {13646#(and (= main_i 124) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13424#(and (< 31 main_n) (<= main_i 128))} is VALID [2019-02-27 12:58:09,398 INFO L273 TraceCheckUtils]: 64: Hoare triple {13424#(and (< 31 main_n) (<= main_i 128))} assume !(i <= n * 4); {13390#false} is VALID [2019-02-27 12:58:09,409 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 992 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:58:09,409 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:58:12,721 INFO L273 TraceCheckUtils]: 64: Hoare triple {13653#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {13390#false} is VALID [2019-02-27 12:58:12,722 INFO L273 TraceCheckUtils]: 63: Hoare triple {13657#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {13653#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:58:12,722 INFO L273 TraceCheckUtils]: 62: Hoare triple {13661#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {13657#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:58:12,723 INFO L273 TraceCheckUtils]: 61: Hoare triple {13665#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {13661#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:58:12,723 INFO L273 TraceCheckUtils]: 60: Hoare triple {13665#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {13665#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:58:12,724 INFO L273 TraceCheckUtils]: 59: Hoare triple {13672#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {13665#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:58:12,725 INFO L273 TraceCheckUtils]: 58: Hoare triple {13672#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {13672#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:58:12,727 INFO L273 TraceCheckUtils]: 57: Hoare triple {13679#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {13672#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:58:12,728 INFO L273 TraceCheckUtils]: 56: Hoare triple {13679#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {13679#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:58:12,729 INFO L273 TraceCheckUtils]: 55: Hoare triple {13686#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {13679#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:58:12,730 INFO L273 TraceCheckUtils]: 54: Hoare triple {13686#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {13686#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:58:12,731 INFO L273 TraceCheckUtils]: 53: Hoare triple {13693#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13686#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:58:12,731 INFO L273 TraceCheckUtils]: 52: Hoare triple {13693#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {13693#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:58:12,733 INFO L273 TraceCheckUtils]: 51: Hoare triple {13700#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {13693#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:58:12,733 INFO L273 TraceCheckUtils]: 50: Hoare triple {13700#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {13700#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:58:12,734 INFO L273 TraceCheckUtils]: 49: Hoare triple {13707#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13700#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:58:12,735 INFO L273 TraceCheckUtils]: 48: Hoare triple {13707#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {13707#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:58:12,736 INFO L273 TraceCheckUtils]: 47: Hoare triple {13714#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13707#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:58:12,737 INFO L273 TraceCheckUtils]: 46: Hoare triple {13714#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {13714#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:58:12,738 INFO L273 TraceCheckUtils]: 45: Hoare triple {13721#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13714#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:58:12,738 INFO L273 TraceCheckUtils]: 44: Hoare triple {13721#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {13721#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:58:12,739 INFO L273 TraceCheckUtils]: 43: Hoare triple {13728#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {13721#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:58:12,740 INFO L273 TraceCheckUtils]: 42: Hoare triple {13728#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {13728#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:58:12,741 INFO L273 TraceCheckUtils]: 41: Hoare triple {13735#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13728#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:58:12,741 INFO L273 TraceCheckUtils]: 40: Hoare triple {13735#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {13735#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:58:12,743 INFO L273 TraceCheckUtils]: 39: Hoare triple {13742#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13735#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:58:12,743 INFO L273 TraceCheckUtils]: 38: Hoare triple {13742#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {13742#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:58:12,744 INFO L273 TraceCheckUtils]: 37: Hoare triple {13749#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {13742#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:58:12,745 INFO L273 TraceCheckUtils]: 36: Hoare triple {13749#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {13749#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:58:12,746 INFO L273 TraceCheckUtils]: 35: Hoare triple {13756#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13749#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:58:12,747 INFO L273 TraceCheckUtils]: 34: Hoare triple {13756#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {13756#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:58:12,748 INFO L273 TraceCheckUtils]: 33: Hoare triple {13763#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {13756#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:58:12,748 INFO L273 TraceCheckUtils]: 32: Hoare triple {13763#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {13763#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:58:12,749 INFO L273 TraceCheckUtils]: 31: Hoare triple {13770#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {13763#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:58:12,750 INFO L273 TraceCheckUtils]: 30: Hoare triple {13770#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {13770#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:58:12,751 INFO L273 TraceCheckUtils]: 29: Hoare triple {13777#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {13770#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:58:12,752 INFO L273 TraceCheckUtils]: 28: Hoare triple {13777#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {13777#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:58:12,753 INFO L273 TraceCheckUtils]: 27: Hoare triple {13784#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {13777#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:58:12,753 INFO L273 TraceCheckUtils]: 26: Hoare triple {13784#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {13784#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:58:12,754 INFO L273 TraceCheckUtils]: 25: Hoare triple {13791#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {13784#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:58:12,755 INFO L273 TraceCheckUtils]: 24: Hoare triple {13791#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {13791#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:58:12,756 INFO L273 TraceCheckUtils]: 23: Hoare triple {13798#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {13791#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:58:12,757 INFO L273 TraceCheckUtils]: 22: Hoare triple {13798#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {13798#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 12:58:12,758 INFO L273 TraceCheckUtils]: 21: Hoare triple {13805#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13798#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 12:58:12,758 INFO L273 TraceCheckUtils]: 20: Hoare triple {13805#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {13805#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 12:58:12,760 INFO L273 TraceCheckUtils]: 19: Hoare triple {13812#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13805#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 12:58:12,760 INFO L273 TraceCheckUtils]: 18: Hoare triple {13812#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {13812#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 12:58:12,761 INFO L273 TraceCheckUtils]: 17: Hoare triple {13819#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13812#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 12:58:12,762 INFO L273 TraceCheckUtils]: 16: Hoare triple {13819#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {13819#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 12:58:12,763 INFO L273 TraceCheckUtils]: 15: Hoare triple {13826#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {13819#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 12:58:12,763 INFO L273 TraceCheckUtils]: 14: Hoare triple {13826#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {13826#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 12:58:12,765 INFO L273 TraceCheckUtils]: 13: Hoare triple {13833#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13826#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 12:58:12,765 INFO L273 TraceCheckUtils]: 12: Hoare triple {13833#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {13833#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 12:58:12,766 INFO L273 TraceCheckUtils]: 11: Hoare triple {13840#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {13833#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 12:58:12,767 INFO L273 TraceCheckUtils]: 10: Hoare triple {13840#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {13840#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 12:58:12,768 INFO L273 TraceCheckUtils]: 9: Hoare triple {13847#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {13840#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 12:58:12,768 INFO L273 TraceCheckUtils]: 8: Hoare triple {13847#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {13847#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 12:58:12,770 INFO L273 TraceCheckUtils]: 7: Hoare triple {13854#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {13847#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 12:58:12,770 INFO L273 TraceCheckUtils]: 6: Hoare triple {13854#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {13854#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 12:58:12,771 INFO L273 TraceCheckUtils]: 5: Hoare triple {13861#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13854#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 12:58:12,772 INFO L273 TraceCheckUtils]: 4: Hoare triple {13861#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {13861#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 12:58:12,773 INFO L273 TraceCheckUtils]: 3: Hoare triple {13868#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13861#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 12:58:12,774 INFO L273 TraceCheckUtils]: 2: Hoare triple {13868#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {13868#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 12:58:12,775 INFO L273 TraceCheckUtils]: 1: Hoare triple {13875#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {13868#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 12:58:12,776 INFO L273 TraceCheckUtils]: 0: Hoare triple {13389#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {13875#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 12:58:12,792 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 992 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:58:12,811 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:58:12,812 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34, 34] total 101 [2019-02-27 12:58:12,812 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:58:12,812 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 65 [2019-02-27 12:58:12,812 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:58:12,812 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 69 states. [2019-02-27 12:58:12,971 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 129 edges. 129 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:58:12,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 69 states [2019-02-27 12:58:12,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2019-02-27 12:58:12,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1334, Invalid=9172, Unknown=0, NotChecked=0, Total=10506 [2019-02-27 12:58:12,973 INFO L87 Difference]: Start difference. First operand 66 states and 66 transitions. Second operand 69 states. [2019-02-27 12:58:21,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:58:21,280 INFO L93 Difference]: Finished difference Result 70 states and 70 transitions. [2019-02-27 12:58:21,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2019-02-27 12:58:21,281 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 65 [2019-02-27 12:58:21,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:58:21,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2019-02-27 12:58:21,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 70 transitions. [2019-02-27 12:58:21,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2019-02-27 12:58:21,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 70 transitions. [2019-02-27 12:58:21,283 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 36 states and 70 transitions. [2019-02-27 12:58:21,359 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 70 edges. 70 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:58:21,360 INFO L225 Difference]: With dead ends: 70 [2019-02-27 12:58:21,360 INFO L226 Difference]: Without dead ends: 69 [2019-02-27 12:58:21,361 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 60 SyntacticMatches, 1 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2376 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=1334, Invalid=9172, Unknown=0, NotChecked=0, Total=10506 [2019-02-27 12:58:21,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-02-27 12:58:21,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 68. [2019-02-27 12:58:21,423 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:58:21,423 INFO L82 GeneralOperation]: Start isEquivalent. First operand 69 states. Second operand 68 states. [2019-02-27 12:58:21,423 INFO L74 IsIncluded]: Start isIncluded. First operand 69 states. Second operand 68 states. [2019-02-27 12:58:21,423 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 68 states. [2019-02-27 12:58:21,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:58:21,425 INFO L93 Difference]: Finished difference Result 69 states and 69 transitions. [2019-02-27 12:58:21,425 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2019-02-27 12:58:21,425 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:58:21,425 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:58:21,425 INFO L74 IsIncluded]: Start isIncluded. First operand 68 states. Second operand 69 states. [2019-02-27 12:58:21,425 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 69 states. [2019-02-27 12:58:21,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:58:21,426 INFO L93 Difference]: Finished difference Result 69 states and 69 transitions. [2019-02-27 12:58:21,426 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2019-02-27 12:58:21,426 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:58:21,426 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:58:21,426 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:58:21,426 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:58:21,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-02-27 12:58:21,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 68 transitions. [2019-02-27 12:58:21,427 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 68 transitions. Word has length 65 [2019-02-27 12:58:21,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:58:21,428 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 68 transitions. [2019-02-27 12:58:21,428 INFO L481 AbstractCegarLoop]: Interpolant automaton has 69 states. [2019-02-27 12:58:21,428 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 68 transitions. [2019-02-27 12:58:21,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-02-27 12:58:21,428 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:58:21,428 INFO L402 BasicCegarLoop]: trace histogram [33, 32, 1, 1] [2019-02-27 12:58:21,429 INFO L423 AbstractCegarLoop]: === Iteration 33 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:58:21,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:58:21,429 INFO L82 PathProgramCache]: Analyzing trace with hash -679115488, now seen corresponding path program 32 times [2019-02-27 12:58:21,429 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:58:21,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:58:21,430 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 12:58:21,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:58:21,430 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:58:21,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:58:23,379 INFO L273 TraceCheckUtils]: 0: Hoare triple {14221#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {14223#(and (or (< 32 main_n) (<= 0 main_i)) (or (<= main_n 32) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,381 INFO L273 TraceCheckUtils]: 1: Hoare triple {14223#(and (or (< 32 main_n) (<= 0 main_i)) (or (<= main_n 32) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14224#(and (or (<= main_n 32) (<= main_i 4)) (or (< 32 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,382 INFO L273 TraceCheckUtils]: 2: Hoare triple {14224#(and (or (<= main_n 32) (<= main_i 4)) (or (< 32 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14224#(and (or (<= main_n 32) (<= main_i 4)) (or (< 32 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,383 INFO L273 TraceCheckUtils]: 3: Hoare triple {14224#(and (or (<= main_n 32) (<= main_i 4)) (or (< 32 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14225#(and (or (< 32 main_n) (<= 8 main_i)) (or (<= main_n 32) (<= main_i 8)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,384 INFO L273 TraceCheckUtils]: 4: Hoare triple {14225#(and (or (< 32 main_n) (<= 8 main_i)) (or (<= main_n 32) (<= main_i 8)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14225#(and (or (< 32 main_n) (<= 8 main_i)) (or (<= main_n 32) (<= main_i 8)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,385 INFO L273 TraceCheckUtils]: 5: Hoare triple {14225#(and (or (< 32 main_n) (<= 8 main_i)) (or (<= main_n 32) (<= main_i 8)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14226#(and (or (<= main_n 32) (<= main_i 12)) (or (< 32 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,402 INFO L273 TraceCheckUtils]: 6: Hoare triple {14226#(and (or (<= main_n 32) (<= main_i 12)) (or (< 32 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14226#(and (or (<= main_n 32) (<= main_i 12)) (or (< 32 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,409 INFO L273 TraceCheckUtils]: 7: Hoare triple {14226#(and (or (<= main_n 32) (<= main_i 12)) (or (< 32 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14227#(and (or (<= main_n 32) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 16 main_i)))} is VALID [2019-02-27 12:58:23,409 INFO L273 TraceCheckUtils]: 8: Hoare triple {14227#(and (or (<= main_n 32) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 16 main_i)))} assume i <= n * 4; {14227#(and (or (<= main_n 32) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 16 main_i)))} is VALID [2019-02-27 12:58:23,410 INFO L273 TraceCheckUtils]: 9: Hoare triple {14227#(and (or (<= main_n 32) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 16 main_i)))} assume a[i] != 23;i := i + 4; {14228#(and (or (< 32 main_n) (<= 20 main_i)) (or (<= main_n 32) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,411 INFO L273 TraceCheckUtils]: 10: Hoare triple {14228#(and (or (< 32 main_n) (<= 20 main_i)) (or (<= main_n 32) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14228#(and (or (< 32 main_n) (<= 20 main_i)) (or (<= main_n 32) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,411 INFO L273 TraceCheckUtils]: 11: Hoare triple {14228#(and (or (< 32 main_n) (<= 20 main_i)) (or (<= main_n 32) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14229#(and (or (< 32 main_n) (<= 24 main_i)) (or (<= main_n 32) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,412 INFO L273 TraceCheckUtils]: 12: Hoare triple {14229#(and (or (< 32 main_n) (<= 24 main_i)) (or (<= main_n 32) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14229#(and (or (< 32 main_n) (<= 24 main_i)) (or (<= main_n 32) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,412 INFO L273 TraceCheckUtils]: 13: Hoare triple {14229#(and (or (< 32 main_n) (<= 24 main_i)) (or (<= main_n 32) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14230#(and (or (<= main_n 32) (<= main_i 28)) (or (< 32 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,413 INFO L273 TraceCheckUtils]: 14: Hoare triple {14230#(and (or (<= main_n 32) (<= main_i 28)) (or (< 32 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14230#(and (or (<= main_n 32) (<= main_i 28)) (or (< 32 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,414 INFO L273 TraceCheckUtils]: 15: Hoare triple {14230#(and (or (<= main_n 32) (<= main_i 28)) (or (< 32 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14231#(and (or (< 32 main_n) (<= 32 main_i)) (or (<= main_i 32) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,415 INFO L273 TraceCheckUtils]: 16: Hoare triple {14231#(and (or (< 32 main_n) (<= 32 main_i)) (or (<= main_i 32) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14231#(and (or (< 32 main_n) (<= 32 main_i)) (or (<= main_i 32) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,416 INFO L273 TraceCheckUtils]: 17: Hoare triple {14231#(and (or (< 32 main_n) (<= 32 main_i)) (or (<= main_i 32) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14232#(and (or (< 32 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,416 INFO L273 TraceCheckUtils]: 18: Hoare triple {14232#(and (or (< 32 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14232#(and (or (< 32 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,436 INFO L273 TraceCheckUtils]: 19: Hoare triple {14232#(and (or (< 32 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14233#(and (or (< 32 main_n) (<= 40 main_i)) (or (<= main_n 32) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,451 INFO L273 TraceCheckUtils]: 20: Hoare triple {14233#(and (or (< 32 main_n) (<= 40 main_i)) (or (<= main_n 32) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14233#(and (or (< 32 main_n) (<= 40 main_i)) (or (<= main_n 32) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,467 INFO L273 TraceCheckUtils]: 21: Hoare triple {14233#(and (or (< 32 main_n) (<= 40 main_i)) (or (<= main_n 32) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14234#(and (or (<= main_n 32) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 44 main_i)))} is VALID [2019-02-27 12:58:23,476 INFO L273 TraceCheckUtils]: 22: Hoare triple {14234#(and (or (<= main_n 32) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 44 main_i)))} assume i <= n * 4; {14234#(and (or (<= main_n 32) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 44 main_i)))} is VALID [2019-02-27 12:58:23,490 INFO L273 TraceCheckUtils]: 23: Hoare triple {14234#(and (or (<= main_n 32) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 44 main_i)))} assume a[i] != 23;i := i + 4; {14235#(and (or (<= main_n 32) (<= main_i 48)) (or (< 32 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,499 INFO L273 TraceCheckUtils]: 24: Hoare triple {14235#(and (or (<= main_n 32) (<= main_i 48)) (or (< 32 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14235#(and (or (<= main_n 32) (<= main_i 48)) (or (< 32 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,511 INFO L273 TraceCheckUtils]: 25: Hoare triple {14235#(and (or (<= main_n 32) (<= main_i 48)) (or (< 32 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14236#(and (or (<= main_n 32) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 52 main_i)))} is VALID [2019-02-27 12:58:23,526 INFO L273 TraceCheckUtils]: 26: Hoare triple {14236#(and (or (<= main_n 32) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 52 main_i)))} assume i <= n * 4; {14236#(and (or (<= main_n 32) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 52 main_i)))} is VALID [2019-02-27 12:58:23,541 INFO L273 TraceCheckUtils]: 27: Hoare triple {14236#(and (or (<= main_n 32) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 52 main_i)))} assume a[i] != 23;i := i + 4; {14237#(and (or (<= main_n 32) (<= main_i 56)) (or (< 32 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,555 INFO L273 TraceCheckUtils]: 28: Hoare triple {14237#(and (or (<= main_n 32) (<= main_i 56)) (or (< 32 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14237#(and (or (<= main_n 32) (<= main_i 56)) (or (< 32 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,564 INFO L273 TraceCheckUtils]: 29: Hoare triple {14237#(and (or (<= main_n 32) (<= main_i 56)) (or (< 32 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14238#(and (or (<= main_n 32) (<= main_i 60)) (or (< 32 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,576 INFO L273 TraceCheckUtils]: 30: Hoare triple {14238#(and (or (<= main_n 32) (<= main_i 60)) (or (< 32 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14238#(and (or (<= main_n 32) (<= main_i 60)) (or (< 32 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,589 INFO L273 TraceCheckUtils]: 31: Hoare triple {14238#(and (or (<= main_n 32) (<= main_i 60)) (or (< 32 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14239#(and (or (< 32 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 64)))} is VALID [2019-02-27 12:58:23,603 INFO L273 TraceCheckUtils]: 32: Hoare triple {14239#(and (or (< 32 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 64)))} assume i <= n * 4; {14239#(and (or (< 32 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 64)))} is VALID [2019-02-27 12:58:23,618 INFO L273 TraceCheckUtils]: 33: Hoare triple {14239#(and (or (< 32 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 64)))} assume a[i] != 23;i := i + 4; {14240#(and (or (<= main_n 32) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 68 main_i)))} is VALID [2019-02-27 12:58:23,627 INFO L273 TraceCheckUtils]: 34: Hoare triple {14240#(and (or (<= main_n 32) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 68 main_i)))} assume i <= n * 4; {14240#(and (or (<= main_n 32) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 68 main_i)))} is VALID [2019-02-27 12:58:23,633 INFO L273 TraceCheckUtils]: 35: Hoare triple {14240#(and (or (<= main_n 32) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 68 main_i)))} assume a[i] != 23;i := i + 4; {14241#(and (or (<= main_n 32) (<= main_i 72)) (or (< 32 main_n) (<= 72 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,634 INFO L273 TraceCheckUtils]: 36: Hoare triple {14241#(and (or (<= main_n 32) (<= main_i 72)) (or (< 32 main_n) (<= 72 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14241#(and (or (<= main_n 32) (<= main_i 72)) (or (< 32 main_n) (<= 72 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,638 INFO L273 TraceCheckUtils]: 37: Hoare triple {14241#(and (or (<= main_n 32) (<= main_i 72)) (or (< 32 main_n) (<= 72 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14242#(and (or (<= main_n 32) (<= main_i 76)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 32 main_n)))} is VALID [2019-02-27 12:58:23,638 INFO L273 TraceCheckUtils]: 38: Hoare triple {14242#(and (or (<= main_n 32) (<= main_i 76)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 32 main_n)))} assume i <= n * 4; {14242#(and (or (<= main_n 32) (<= main_i 76)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 32 main_n)))} is VALID [2019-02-27 12:58:23,640 INFO L273 TraceCheckUtils]: 39: Hoare triple {14242#(and (or (<= main_n 32) (<= main_i 76)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 32 main_n)))} assume a[i] != 23;i := i + 4; {14243#(and (or (<= main_n 32) (<= main_i 80)) (or (< 32 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,640 INFO L273 TraceCheckUtils]: 40: Hoare triple {14243#(and (or (<= main_n 32) (<= main_i 80)) (or (< 32 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14243#(and (or (<= main_n 32) (<= main_i 80)) (or (< 32 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,641 INFO L273 TraceCheckUtils]: 41: Hoare triple {14243#(and (or (<= main_n 32) (<= main_i 80)) (or (< 32 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14244#(and (or (<= main_n 32) (<= main_i 84)) (or (< 32 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,641 INFO L273 TraceCheckUtils]: 42: Hoare triple {14244#(and (or (<= main_n 32) (<= main_i 84)) (or (< 32 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14244#(and (or (<= main_n 32) (<= main_i 84)) (or (< 32 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,642 INFO L273 TraceCheckUtils]: 43: Hoare triple {14244#(and (or (<= main_n 32) (<= main_i 84)) (or (< 32 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14245#(and (or (<= main_n 32) (<= main_i 88)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 88 main_i)))} is VALID [2019-02-27 12:58:23,642 INFO L273 TraceCheckUtils]: 44: Hoare triple {14245#(and (or (<= main_n 32) (<= main_i 88)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 88 main_i)))} assume i <= n * 4; {14245#(and (or (<= main_n 32) (<= main_i 88)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 88 main_i)))} is VALID [2019-02-27 12:58:23,643 INFO L273 TraceCheckUtils]: 45: Hoare triple {14245#(and (or (<= main_n 32) (<= main_i 88)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 88 main_i)))} assume a[i] != 23;i := i + 4; {14246#(and (or (< 32 main_n) (<= 92 main_i)) (or (<= main_n 32) (<= main_i 92)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,644 INFO L273 TraceCheckUtils]: 46: Hoare triple {14246#(and (or (< 32 main_n) (<= 92 main_i)) (or (<= main_n 32) (<= main_i 92)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14246#(and (or (< 32 main_n) (<= 92 main_i)) (or (<= main_n 32) (<= main_i 92)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,644 INFO L273 TraceCheckUtils]: 47: Hoare triple {14246#(and (or (< 32 main_n) (<= 92 main_i)) (or (<= main_n 32) (<= main_i 92)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14247#(and (or (<= main_i 96) (<= main_n 32)) (or (< 32 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,645 INFO L273 TraceCheckUtils]: 48: Hoare triple {14247#(and (or (<= main_i 96) (<= main_n 32)) (or (< 32 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14247#(and (or (<= main_i 96) (<= main_n 32)) (or (< 32 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,646 INFO L273 TraceCheckUtils]: 49: Hoare triple {14247#(and (or (<= main_i 96) (<= main_n 32)) (or (< 32 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14248#(and (or (< 32 main_n) (<= 100 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 100)))} is VALID [2019-02-27 12:58:23,647 INFO L273 TraceCheckUtils]: 50: Hoare triple {14248#(and (or (< 32 main_n) (<= 100 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 100)))} assume i <= n * 4; {14248#(and (or (< 32 main_n) (<= 100 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 100)))} is VALID [2019-02-27 12:58:23,648 INFO L273 TraceCheckUtils]: 51: Hoare triple {14248#(and (or (< 32 main_n) (<= 100 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 100)))} assume a[i] != 23;i := i + 4; {14249#(and (or (<= main_i 104) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 104 main_i)))} is VALID [2019-02-27 12:58:23,649 INFO L273 TraceCheckUtils]: 52: Hoare triple {14249#(and (or (<= main_i 104) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 104 main_i)))} assume i <= n * 4; {14249#(and (or (<= main_i 104) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 104 main_i)))} is VALID [2019-02-27 12:58:23,650 INFO L273 TraceCheckUtils]: 53: Hoare triple {14249#(and (or (<= main_i 104) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 104 main_i)))} assume a[i] != 23;i := i + 4; {14250#(and (or (< 32 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 108)))} is VALID [2019-02-27 12:58:23,650 INFO L273 TraceCheckUtils]: 54: Hoare triple {14250#(and (or (< 32 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 108)))} assume i <= n * 4; {14250#(and (or (< 32 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 108)))} is VALID [2019-02-27 12:58:23,651 INFO L273 TraceCheckUtils]: 55: Hoare triple {14250#(and (or (< 32 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 108)))} assume a[i] != 23;i := i + 4; {14251#(and (or (< 32 main_n) (<= 112 main_i)) (or (<= main_n 32) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,652 INFO L273 TraceCheckUtils]: 56: Hoare triple {14251#(and (or (< 32 main_n) (<= 112 main_i)) (or (<= main_n 32) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14251#(and (or (< 32 main_n) (<= 112 main_i)) (or (<= main_n 32) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,653 INFO L273 TraceCheckUtils]: 57: Hoare triple {14251#(and (or (< 32 main_n) (<= 112 main_i)) (or (<= main_n 32) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14252#(and (or (<= 116 main_i) (< 32 main_n)) (or (<= main_n 32) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,654 INFO L273 TraceCheckUtils]: 58: Hoare triple {14252#(and (or (<= 116 main_i) (< 32 main_n)) (or (<= main_n 32) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14252#(and (or (<= 116 main_i) (< 32 main_n)) (or (<= main_n 32) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,655 INFO L273 TraceCheckUtils]: 59: Hoare triple {14252#(and (or (<= 116 main_i) (< 32 main_n)) (or (<= main_n 32) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14253#(and (or (<= main_n 32) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 120 main_i)))} is VALID [2019-02-27 12:58:23,656 INFO L273 TraceCheckUtils]: 60: Hoare triple {14253#(and (or (<= main_n 32) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 120 main_i)))} assume i <= n * 4; {14253#(and (or (<= main_n 32) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 120 main_i)))} is VALID [2019-02-27 12:58:23,657 INFO L273 TraceCheckUtils]: 61: Hoare triple {14253#(and (or (<= main_n 32) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 120 main_i)))} assume a[i] != 23;i := i + 4; {14254#(and (or (<= main_n 32) (<= main_i 124)) (or (< 32 main_n) (<= 124 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,657 INFO L273 TraceCheckUtils]: 62: Hoare triple {14254#(and (or (<= main_n 32) (<= main_i 124)) (or (< 32 main_n) (<= 124 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14254#(and (or (<= main_n 32) (<= main_i 124)) (or (< 32 main_n) (<= 124 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:23,659 INFO L273 TraceCheckUtils]: 63: Hoare triple {14254#(and (or (<= main_n 32) (<= main_i 124)) (or (< 32 main_n) (<= 124 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14255#(and (or (= (* 4 main_n) main_i) (and (or (< 32 main_n) (<= (* 4 main_n) main_i)) (or (<= main_n 32) (<= main_i 128)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-02-27 12:58:23,660 INFO L273 TraceCheckUtils]: 64: Hoare triple {14255#(and (or (= (* 4 main_n) main_i) (and (or (< 32 main_n) (<= (* 4 main_n) main_i)) (or (<= main_n 32) (<= main_i 128)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume i <= n * 4; {14256#(and (or (= (* 4 main_n) main_i) (and (< 32 main_n) (<= main_i 128))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-02-27 12:58:23,661 INFO L273 TraceCheckUtils]: 65: Hoare triple {14256#(and (or (= (* 4 main_n) main_i) (and (< 32 main_n) (<= main_i 128))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume a[i] != 23;i := i + 4; {14257#(and (<= main_i 132) (<= 33 main_n))} is VALID [2019-02-27 12:58:23,661 INFO L273 TraceCheckUtils]: 66: Hoare triple {14257#(and (<= main_i 132) (<= 33 main_n))} assume !(i <= n * 4); {14222#false} is VALID [2019-02-27 12:58:23,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 0 proven. 1056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:58:23,682 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:58:23,682 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:58:23,682 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:58:23,682 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:58:23,682 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:58:23,682 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:58:23,690 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-27 12:58:23,690 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-27 12:58:23,732 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 33 check-sat command(s) [2019-02-27 12:58:23,732 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 12:58:23,733 WARN L254 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 71 conjunts are in the unsatisfiable core [2019-02-27 12:58:23,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:58:23,758 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:58:23,854 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:58:23,858 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:58:23,866 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:58:23,866 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:58:23,868 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:58:23,868 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_36]. (and (= (store v_main_a_36 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-27 12:58:23,868 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:58:25,745 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:58:25,747 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:58:25,755 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:58:25,755 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:58:25,757 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:58:25,758 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 132) (not (= (select main_a 128) 23)) (<= 128 .cse0) (= 23 (select main_a .cse0)))) [2019-02-27 12:58:25,758 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 132) (<= 128 .cse0) (not (= 128 .cse0)))) [2019-02-27 12:58:25,806 INFO L273 TraceCheckUtils]: 0: Hoare triple {14221#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {14261#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,807 INFO L273 TraceCheckUtils]: 1: Hoare triple {14261#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14265#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:58:25,807 INFO L273 TraceCheckUtils]: 2: Hoare triple {14265#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {14265#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:58:25,807 INFO L273 TraceCheckUtils]: 3: Hoare triple {14265#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {14272#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,808 INFO L273 TraceCheckUtils]: 4: Hoare triple {14272#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14272#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,808 INFO L273 TraceCheckUtils]: 5: Hoare triple {14272#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14279#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:58:25,809 INFO L273 TraceCheckUtils]: 6: Hoare triple {14279#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {14279#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:58:25,809 INFO L273 TraceCheckUtils]: 7: Hoare triple {14279#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {14286#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,810 INFO L273 TraceCheckUtils]: 8: Hoare triple {14286#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14286#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,811 INFO L273 TraceCheckUtils]: 9: Hoare triple {14286#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14293#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,811 INFO L273 TraceCheckUtils]: 10: Hoare triple {14293#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14293#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,812 INFO L273 TraceCheckUtils]: 11: Hoare triple {14293#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14300#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,813 INFO L273 TraceCheckUtils]: 12: Hoare triple {14300#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14300#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,814 INFO L273 TraceCheckUtils]: 13: Hoare triple {14300#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14307#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,814 INFO L273 TraceCheckUtils]: 14: Hoare triple {14307#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14307#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,815 INFO L273 TraceCheckUtils]: 15: Hoare triple {14307#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14314#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,816 INFO L273 TraceCheckUtils]: 16: Hoare triple {14314#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14314#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,817 INFO L273 TraceCheckUtils]: 17: Hoare triple {14314#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14321#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,817 INFO L273 TraceCheckUtils]: 18: Hoare triple {14321#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14321#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,818 INFO L273 TraceCheckUtils]: 19: Hoare triple {14321#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14328#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,819 INFO L273 TraceCheckUtils]: 20: Hoare triple {14328#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14328#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,820 INFO L273 TraceCheckUtils]: 21: Hoare triple {14328#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14335#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,820 INFO L273 TraceCheckUtils]: 22: Hoare triple {14335#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14335#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,821 INFO L273 TraceCheckUtils]: 23: Hoare triple {14335#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14342#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,822 INFO L273 TraceCheckUtils]: 24: Hoare triple {14342#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14342#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,822 INFO L273 TraceCheckUtils]: 25: Hoare triple {14342#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14349#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,823 INFO L273 TraceCheckUtils]: 26: Hoare triple {14349#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14349#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,824 INFO L273 TraceCheckUtils]: 27: Hoare triple {14349#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14356#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,824 INFO L273 TraceCheckUtils]: 28: Hoare triple {14356#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14356#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,825 INFO L273 TraceCheckUtils]: 29: Hoare triple {14356#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14363#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,826 INFO L273 TraceCheckUtils]: 30: Hoare triple {14363#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14363#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,826 INFO L273 TraceCheckUtils]: 31: Hoare triple {14363#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14370#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,827 INFO L273 TraceCheckUtils]: 32: Hoare triple {14370#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14370#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,828 INFO L273 TraceCheckUtils]: 33: Hoare triple {14370#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14377#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,828 INFO L273 TraceCheckUtils]: 34: Hoare triple {14377#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14377#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,829 INFO L273 TraceCheckUtils]: 35: Hoare triple {14377#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14384#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,830 INFO L273 TraceCheckUtils]: 36: Hoare triple {14384#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14384#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,830 INFO L273 TraceCheckUtils]: 37: Hoare triple {14384#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14391#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,831 INFO L273 TraceCheckUtils]: 38: Hoare triple {14391#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14391#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,832 INFO L273 TraceCheckUtils]: 39: Hoare triple {14391#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14398#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:58:25,832 INFO L273 TraceCheckUtils]: 40: Hoare triple {14398#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {14398#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:58:25,833 INFO L273 TraceCheckUtils]: 41: Hoare triple {14398#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {14405#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,834 INFO L273 TraceCheckUtils]: 42: Hoare triple {14405#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14405#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,835 INFO L273 TraceCheckUtils]: 43: Hoare triple {14405#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14412#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,835 INFO L273 TraceCheckUtils]: 44: Hoare triple {14412#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14412#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,836 INFO L273 TraceCheckUtils]: 45: Hoare triple {14412#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14419#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,837 INFO L273 TraceCheckUtils]: 46: Hoare triple {14419#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14419#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,837 INFO L273 TraceCheckUtils]: 47: Hoare triple {14419#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14426#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,838 INFO L273 TraceCheckUtils]: 48: Hoare triple {14426#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14426#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,839 INFO L273 TraceCheckUtils]: 49: Hoare triple {14426#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14433#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,840 INFO L273 TraceCheckUtils]: 50: Hoare triple {14433#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14433#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,840 INFO L273 TraceCheckUtils]: 51: Hoare triple {14433#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14440#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,841 INFO L273 TraceCheckUtils]: 52: Hoare triple {14440#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14440#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,842 INFO L273 TraceCheckUtils]: 53: Hoare triple {14440#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14447#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,842 INFO L273 TraceCheckUtils]: 54: Hoare triple {14447#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14447#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,843 INFO L273 TraceCheckUtils]: 55: Hoare triple {14447#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14454#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,844 INFO L273 TraceCheckUtils]: 56: Hoare triple {14454#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14454#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,844 INFO L273 TraceCheckUtils]: 57: Hoare triple {14454#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14461#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,845 INFO L273 TraceCheckUtils]: 58: Hoare triple {14461#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14461#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,847 INFO L273 TraceCheckUtils]: 59: Hoare triple {14461#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14468#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,847 INFO L273 TraceCheckUtils]: 60: Hoare triple {14468#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14468#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,848 INFO L273 TraceCheckUtils]: 61: Hoare triple {14468#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14475#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,849 INFO L273 TraceCheckUtils]: 62: Hoare triple {14475#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14475#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,850 INFO L273 TraceCheckUtils]: 63: Hoare triple {14475#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14482#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,850 INFO L273 TraceCheckUtils]: 64: Hoare triple {14482#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14486#(and (<= main_i (* 4 main_n)) (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:25,851 INFO L273 TraceCheckUtils]: 65: Hoare triple {14486#(and (<= main_i (* 4 main_n)) (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14257#(and (<= main_i 132) (<= 33 main_n))} is VALID [2019-02-27 12:58:25,852 INFO L273 TraceCheckUtils]: 66: Hoare triple {14257#(and (<= main_i 132) (<= 33 main_n))} assume !(i <= n * 4); {14222#false} is VALID [2019-02-27 12:58:25,865 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 0 proven. 1056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:58:25,865 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:58:29,402 INFO L273 TraceCheckUtils]: 66: Hoare triple {14493#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {14222#false} is VALID [2019-02-27 12:58:29,403 INFO L273 TraceCheckUtils]: 65: Hoare triple {14497#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {14493#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:58:29,403 INFO L273 TraceCheckUtils]: 64: Hoare triple {14501#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {14497#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:58:29,404 INFO L273 TraceCheckUtils]: 63: Hoare triple {14505#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {14501#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:58:29,404 INFO L273 TraceCheckUtils]: 62: Hoare triple {14505#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {14505#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:58:29,405 INFO L273 TraceCheckUtils]: 61: Hoare triple {14512#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {14505#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:58:29,405 INFO L273 TraceCheckUtils]: 60: Hoare triple {14512#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {14512#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:58:29,406 INFO L273 TraceCheckUtils]: 59: Hoare triple {14519#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {14512#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:58:29,407 INFO L273 TraceCheckUtils]: 58: Hoare triple {14519#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {14519#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:58:29,408 INFO L273 TraceCheckUtils]: 57: Hoare triple {14526#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {14519#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:58:29,408 INFO L273 TraceCheckUtils]: 56: Hoare triple {14526#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {14526#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:58:29,409 INFO L273 TraceCheckUtils]: 55: Hoare triple {14533#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14526#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:58:29,410 INFO L273 TraceCheckUtils]: 54: Hoare triple {14533#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {14533#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:58:29,411 INFO L273 TraceCheckUtils]: 53: Hoare triple {14540#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {14533#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:58:29,412 INFO L273 TraceCheckUtils]: 52: Hoare triple {14540#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {14540#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:58:29,413 INFO L273 TraceCheckUtils]: 51: Hoare triple {14547#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14540#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:58:29,413 INFO L273 TraceCheckUtils]: 50: Hoare triple {14547#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {14547#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:58:29,414 INFO L273 TraceCheckUtils]: 49: Hoare triple {14554#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14547#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:58:29,415 INFO L273 TraceCheckUtils]: 48: Hoare triple {14554#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {14554#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:58:29,416 INFO L273 TraceCheckUtils]: 47: Hoare triple {14561#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14554#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:58:29,416 INFO L273 TraceCheckUtils]: 46: Hoare triple {14561#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {14561#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:58:29,417 INFO L273 TraceCheckUtils]: 45: Hoare triple {14568#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {14561#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:58:29,418 INFO L273 TraceCheckUtils]: 44: Hoare triple {14568#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {14568#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:58:29,419 INFO L273 TraceCheckUtils]: 43: Hoare triple {14575#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14568#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:58:29,420 INFO L273 TraceCheckUtils]: 42: Hoare triple {14575#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {14575#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:58:29,421 INFO L273 TraceCheckUtils]: 41: Hoare triple {14582#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14575#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:58:29,421 INFO L273 TraceCheckUtils]: 40: Hoare triple {14582#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {14582#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:58:29,422 INFO L273 TraceCheckUtils]: 39: Hoare triple {14589#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {14582#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:58:29,423 INFO L273 TraceCheckUtils]: 38: Hoare triple {14589#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {14589#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:58:29,424 INFO L273 TraceCheckUtils]: 37: Hoare triple {14596#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14589#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:58:29,425 INFO L273 TraceCheckUtils]: 36: Hoare triple {14596#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {14596#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:58:29,426 INFO L273 TraceCheckUtils]: 35: Hoare triple {14603#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {14596#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:58:29,426 INFO L273 TraceCheckUtils]: 34: Hoare triple {14603#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {14603#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:58:29,427 INFO L273 TraceCheckUtils]: 33: Hoare triple {14610#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {14603#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:58:29,428 INFO L273 TraceCheckUtils]: 32: Hoare triple {14610#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {14610#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:58:29,429 INFO L273 TraceCheckUtils]: 31: Hoare triple {14617#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {14610#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:58:29,429 INFO L273 TraceCheckUtils]: 30: Hoare triple {14617#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {14617#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:58:29,431 INFO L273 TraceCheckUtils]: 29: Hoare triple {14624#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {14617#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:58:29,431 INFO L273 TraceCheckUtils]: 28: Hoare triple {14624#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {14624#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:58:29,432 INFO L273 TraceCheckUtils]: 27: Hoare triple {14631#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {14624#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:58:29,433 INFO L273 TraceCheckUtils]: 26: Hoare triple {14631#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {14631#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:58:29,434 INFO L273 TraceCheckUtils]: 25: Hoare triple {14638#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {14631#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:58:29,434 INFO L273 TraceCheckUtils]: 24: Hoare triple {14638#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {14638#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 12:58:29,435 INFO L273 TraceCheckUtils]: 23: Hoare triple {14645#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14638#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 12:58:29,436 INFO L273 TraceCheckUtils]: 22: Hoare triple {14645#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {14645#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 12:58:29,437 INFO L273 TraceCheckUtils]: 21: Hoare triple {14652#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14645#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 12:58:29,437 INFO L273 TraceCheckUtils]: 20: Hoare triple {14652#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {14652#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 12:58:29,438 INFO L273 TraceCheckUtils]: 19: Hoare triple {14659#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14652#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 12:58:29,439 INFO L273 TraceCheckUtils]: 18: Hoare triple {14659#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {14659#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 12:58:29,440 INFO L273 TraceCheckUtils]: 17: Hoare triple {14666#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {14659#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 12:58:29,441 INFO L273 TraceCheckUtils]: 16: Hoare triple {14666#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {14666#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 12:58:29,442 INFO L273 TraceCheckUtils]: 15: Hoare triple {14673#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14666#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 12:58:29,442 INFO L273 TraceCheckUtils]: 14: Hoare triple {14673#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {14673#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 12:58:29,443 INFO L273 TraceCheckUtils]: 13: Hoare triple {14680#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {14673#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 12:58:29,444 INFO L273 TraceCheckUtils]: 12: Hoare triple {14680#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {14680#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 12:58:29,445 INFO L273 TraceCheckUtils]: 11: Hoare triple {14687#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {14680#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 12:58:29,446 INFO L273 TraceCheckUtils]: 10: Hoare triple {14687#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {14687#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 12:58:29,447 INFO L273 TraceCheckUtils]: 9: Hoare triple {14694#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {14687#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 12:58:29,447 INFO L273 TraceCheckUtils]: 8: Hoare triple {14694#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {14694#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 12:58:29,448 INFO L273 TraceCheckUtils]: 7: Hoare triple {14701#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14694#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 12:58:29,449 INFO L273 TraceCheckUtils]: 6: Hoare triple {14701#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {14701#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 12:58:29,450 INFO L273 TraceCheckUtils]: 5: Hoare triple {14708#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14701#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 12:58:29,450 INFO L273 TraceCheckUtils]: 4: Hoare triple {14708#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {14708#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 12:58:29,451 INFO L273 TraceCheckUtils]: 3: Hoare triple {14715#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {14708#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 12:58:29,452 INFO L273 TraceCheckUtils]: 2: Hoare triple {14715#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {14715#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 12:58:29,453 INFO L273 TraceCheckUtils]: 1: Hoare triple {14722#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14715#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 12:58:29,454 INFO L273 TraceCheckUtils]: 0: Hoare triple {14221#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {14722#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 12:58:29,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 0 proven. 1056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:58:29,490 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:58:29,490 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 104 [2019-02-27 12:58:29,491 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:58:29,491 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 67 [2019-02-27 12:58:29,491 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:58:29,491 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 71 states. [2019-02-27 12:58:29,664 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 133 edges. 133 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:58:29,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 71 states [2019-02-27 12:58:29,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2019-02-27 12:58:29,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1408, Invalid=9722, Unknown=0, NotChecked=0, Total=11130 [2019-02-27 12:58:29,666 INFO L87 Difference]: Start difference. First operand 68 states and 68 transitions. Second operand 71 states. [2019-02-27 12:58:36,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:58:36,010 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2019-02-27 12:58:36,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-02-27 12:58:36,010 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 67 [2019-02-27 12:58:36,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:58:36,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-02-27 12:58:36,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 72 transitions. [2019-02-27 12:58:36,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-02-27 12:58:36,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 72 transitions. [2019-02-27 12:58:36,012 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 37 states and 72 transitions. [2019-02-27 12:58:36,087 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 72 edges. 72 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:58:36,089 INFO L225 Difference]: With dead ends: 72 [2019-02-27 12:58:36,089 INFO L226 Difference]: Without dead ends: 71 [2019-02-27 12:58:36,090 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2516 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=1408, Invalid=9722, Unknown=0, NotChecked=0, Total=11130 [2019-02-27 12:58:36,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-02-27 12:58:36,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 70. [2019-02-27 12:58:36,151 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:58:36,152 INFO L82 GeneralOperation]: Start isEquivalent. First operand 71 states. Second operand 70 states. [2019-02-27 12:58:36,152 INFO L74 IsIncluded]: Start isIncluded. First operand 71 states. Second operand 70 states. [2019-02-27 12:58:36,152 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 70 states. [2019-02-27 12:58:36,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:58:36,153 INFO L93 Difference]: Finished difference Result 71 states and 71 transitions. [2019-02-27 12:58:36,153 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2019-02-27 12:58:36,153 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:58:36,154 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:58:36,154 INFO L74 IsIncluded]: Start isIncluded. First operand 70 states. Second operand 71 states. [2019-02-27 12:58:36,154 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 71 states. [2019-02-27 12:58:36,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:58:36,155 INFO L93 Difference]: Finished difference Result 71 states and 71 transitions. [2019-02-27 12:58:36,155 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2019-02-27 12:58:36,155 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:58:36,155 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:58:36,155 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:58:36,155 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:58:36,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-02-27 12:58:36,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 70 transitions. [2019-02-27 12:58:36,156 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 70 transitions. Word has length 67 [2019-02-27 12:58:36,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:58:36,157 INFO L480 AbstractCegarLoop]: Abstraction has 70 states and 70 transitions. [2019-02-27 12:58:36,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has 71 states. [2019-02-27 12:58:36,157 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 70 transitions. [2019-02-27 12:58:36,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-02-27 12:58:36,157 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:58:36,157 INFO L402 BasicCegarLoop]: trace histogram [34, 33, 1, 1] [2019-02-27 12:58:36,158 INFO L423 AbstractCegarLoop]: === Iteration 34 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:58:36,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:58:36,158 INFO L82 PathProgramCache]: Analyzing trace with hash 205046114, now seen corresponding path program 33 times [2019-02-27 12:58:36,158 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:58:36,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:58:36,159 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 12:58:36,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:58:36,159 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:58:36,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:58:36,587 WARN L181 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-02-27 12:58:38,602 INFO L273 TraceCheckUtils]: 0: Hoare triple {15078#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {15080#(and (or (<= main_i 0) (<= main_n 33)) (or (< 33 main_n) (<= 0 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,604 INFO L273 TraceCheckUtils]: 1: Hoare triple {15080#(and (or (<= main_i 0) (<= main_n 33)) (or (< 33 main_n) (<= 0 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15081#(and (or (<= main_n 33) (<= main_i 4)) (or (< 33 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,605 INFO L273 TraceCheckUtils]: 2: Hoare triple {15081#(and (or (<= main_n 33) (<= main_i 4)) (or (< 33 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15081#(and (or (<= main_n 33) (<= main_i 4)) (or (< 33 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,606 INFO L273 TraceCheckUtils]: 3: Hoare triple {15081#(and (or (<= main_n 33) (<= main_i 4)) (or (< 33 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15082#(and (or (<= main_i 8) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 8 main_i)))} is VALID [2019-02-27 12:58:38,606 INFO L273 TraceCheckUtils]: 4: Hoare triple {15082#(and (or (<= main_i 8) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 8 main_i)))} assume i <= n * 4; {15082#(and (or (<= main_i 8) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 8 main_i)))} is VALID [2019-02-27 12:58:38,608 INFO L273 TraceCheckUtils]: 5: Hoare triple {15082#(and (or (<= main_i 8) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 8 main_i)))} assume a[i] != 23;i := i + 4; {15083#(and (or (< 33 main_n) (<= 12 main_i)) (or (<= main_n 33) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,608 INFO L273 TraceCheckUtils]: 6: Hoare triple {15083#(and (or (< 33 main_n) (<= 12 main_i)) (or (<= main_n 33) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15083#(and (or (< 33 main_n) (<= 12 main_i)) (or (<= main_n 33) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,609 INFO L273 TraceCheckUtils]: 7: Hoare triple {15083#(and (or (< 33 main_n) (<= 12 main_i)) (or (<= main_n 33) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15084#(and (or (<= main_n 33) (<= main_i 16)) (or (< 33 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,610 INFO L273 TraceCheckUtils]: 8: Hoare triple {15084#(and (or (<= main_n 33) (<= main_i 16)) (or (< 33 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15084#(and (or (<= main_n 33) (<= main_i 16)) (or (< 33 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,611 INFO L273 TraceCheckUtils]: 9: Hoare triple {15084#(and (or (<= main_n 33) (<= main_i 16)) (or (< 33 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15085#(and (or (< 33 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,612 INFO L273 TraceCheckUtils]: 10: Hoare triple {15085#(and (or (< 33 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15085#(and (or (< 33 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,613 INFO L273 TraceCheckUtils]: 11: Hoare triple {15085#(and (or (< 33 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15086#(and (or (< 33 main_n) (<= 24 main_i)) (or (<= main_i 24) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,614 INFO L273 TraceCheckUtils]: 12: Hoare triple {15086#(and (or (< 33 main_n) (<= 24 main_i)) (or (<= main_i 24) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15086#(and (or (< 33 main_n) (<= 24 main_i)) (or (<= main_i 24) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,615 INFO L273 TraceCheckUtils]: 13: Hoare triple {15086#(and (or (< 33 main_n) (<= 24 main_i)) (or (<= main_i 24) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15087#(and (or (<= main_n 33) (<= main_i 28)) (or (< 33 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,616 INFO L273 TraceCheckUtils]: 14: Hoare triple {15087#(and (or (<= main_n 33) (<= main_i 28)) (or (< 33 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15087#(and (or (<= main_n 33) (<= main_i 28)) (or (< 33 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,617 INFO L273 TraceCheckUtils]: 15: Hoare triple {15087#(and (or (<= main_n 33) (<= main_i 28)) (or (< 33 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15088#(and (or (<= 32 main_i) (< 33 main_n)) (or (<= main_i 32) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,618 INFO L273 TraceCheckUtils]: 16: Hoare triple {15088#(and (or (<= 32 main_i) (< 33 main_n)) (or (<= main_i 32) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15088#(and (or (<= 32 main_i) (< 33 main_n)) (or (<= main_i 32) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,619 INFO L273 TraceCheckUtils]: 17: Hoare triple {15088#(and (or (<= 32 main_i) (< 33 main_n)) (or (<= main_i 32) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15089#(and (or (<= main_i 36) (<= main_n 33)) (or (< 33 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,619 INFO L273 TraceCheckUtils]: 18: Hoare triple {15089#(and (or (<= main_i 36) (<= main_n 33)) (or (< 33 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15089#(and (or (<= main_i 36) (<= main_n 33)) (or (< 33 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,620 INFO L273 TraceCheckUtils]: 19: Hoare triple {15089#(and (or (<= main_i 36) (<= main_n 33)) (or (< 33 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15090#(and (or (<= main_i 40) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 33 main_n)))} is VALID [2019-02-27 12:58:38,621 INFO L273 TraceCheckUtils]: 20: Hoare triple {15090#(and (or (<= main_i 40) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 33 main_n)))} assume i <= n * 4; {15090#(and (or (<= main_i 40) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 33 main_n)))} is VALID [2019-02-27 12:58:38,622 INFO L273 TraceCheckUtils]: 21: Hoare triple {15090#(and (or (<= main_i 40) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 33 main_n)))} assume a[i] != 23;i := i + 4; {15091#(and (or (<= main_n 33) (<= main_i 44)) (or (< 33 main_n) (<= 44 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,623 INFO L273 TraceCheckUtils]: 22: Hoare triple {15091#(and (or (<= main_n 33) (<= main_i 44)) (or (< 33 main_n) (<= 44 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15091#(and (or (<= main_n 33) (<= main_i 44)) (or (< 33 main_n) (<= 44 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,624 INFO L273 TraceCheckUtils]: 23: Hoare triple {15091#(and (or (<= main_n 33) (<= main_i 44)) (or (< 33 main_n) (<= 44 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15092#(and (or (< 33 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 33) (<= main_i 48)))} is VALID [2019-02-27 12:58:38,625 INFO L273 TraceCheckUtils]: 24: Hoare triple {15092#(and (or (< 33 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 33) (<= main_i 48)))} assume i <= n * 4; {15092#(and (or (< 33 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 33) (<= main_i 48)))} is VALID [2019-02-27 12:58:38,626 INFO L273 TraceCheckUtils]: 25: Hoare triple {15092#(and (or (< 33 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 33) (<= main_i 48)))} assume a[i] != 23;i := i + 4; {15093#(and (or (<= main_i 52) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 52 main_i)))} is VALID [2019-02-27 12:58:38,627 INFO L273 TraceCheckUtils]: 26: Hoare triple {15093#(and (or (<= main_i 52) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 52 main_i)))} assume i <= n * 4; {15093#(and (or (<= main_i 52) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 52 main_i)))} is VALID [2019-02-27 12:58:38,628 INFO L273 TraceCheckUtils]: 27: Hoare triple {15093#(and (or (<= main_i 52) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 52 main_i)))} assume a[i] != 23;i := i + 4; {15094#(and (or (<= main_i 56) (<= main_n 33)) (or (< 33 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,629 INFO L273 TraceCheckUtils]: 28: Hoare triple {15094#(and (or (<= main_i 56) (<= main_n 33)) (or (< 33 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15094#(and (or (<= main_i 56) (<= main_n 33)) (or (< 33 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,630 INFO L273 TraceCheckUtils]: 29: Hoare triple {15094#(and (or (<= main_i 56) (<= main_n 33)) (or (< 33 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15095#(and (or (<= main_i 60) (<= main_n 33)) (or (< 33 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,630 INFO L273 TraceCheckUtils]: 30: Hoare triple {15095#(and (or (<= main_i 60) (<= main_n 33)) (or (< 33 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15095#(and (or (<= main_i 60) (<= main_n 33)) (or (< 33 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,632 INFO L273 TraceCheckUtils]: 31: Hoare triple {15095#(and (or (<= main_i 60) (<= main_n 33)) (or (< 33 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15096#(and (or (<= main_i 64) (<= main_n 33)) (or (< 33 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,632 INFO L273 TraceCheckUtils]: 32: Hoare triple {15096#(and (or (<= main_i 64) (<= main_n 33)) (or (< 33 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15096#(and (or (<= main_i 64) (<= main_n 33)) (or (< 33 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,633 INFO L273 TraceCheckUtils]: 33: Hoare triple {15096#(and (or (<= main_i 64) (<= main_n 33)) (or (< 33 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15097#(and (or (< 33 main_n) (<= 68 main_i)) (or (<= main_n 33) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,634 INFO L273 TraceCheckUtils]: 34: Hoare triple {15097#(and (or (< 33 main_n) (<= 68 main_i)) (or (<= main_n 33) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15097#(and (or (< 33 main_n) (<= 68 main_i)) (or (<= main_n 33) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,635 INFO L273 TraceCheckUtils]: 35: Hoare triple {15097#(and (or (< 33 main_n) (<= 68 main_i)) (or (<= main_n 33) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15098#(and (or (<= main_i 72) (<= main_n 33)) (or (<= 72 main_i) (< 33 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,636 INFO L273 TraceCheckUtils]: 36: Hoare triple {15098#(and (or (<= main_i 72) (<= main_n 33)) (or (<= 72 main_i) (< 33 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15098#(and (or (<= main_i 72) (<= main_n 33)) (or (<= 72 main_i) (< 33 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,637 INFO L273 TraceCheckUtils]: 37: Hoare triple {15098#(and (or (<= main_i 72) (<= main_n 33)) (or (<= 72 main_i) (< 33 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15099#(and (or (<= 76 main_i) (< 33 main_n)) (or (<= main_i 76) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,638 INFO L273 TraceCheckUtils]: 38: Hoare triple {15099#(and (or (<= 76 main_i) (< 33 main_n)) (or (<= main_i 76) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15099#(and (or (<= 76 main_i) (< 33 main_n)) (or (<= main_i 76) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,639 INFO L273 TraceCheckUtils]: 39: Hoare triple {15099#(and (or (<= 76 main_i) (< 33 main_n)) (or (<= main_i 76) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15100#(and (or (<= main_n 33) (<= main_i 80)) (or (< 33 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,640 INFO L273 TraceCheckUtils]: 40: Hoare triple {15100#(and (or (<= main_n 33) (<= main_i 80)) (or (< 33 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15100#(and (or (<= main_n 33) (<= main_i 80)) (or (< 33 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,641 INFO L273 TraceCheckUtils]: 41: Hoare triple {15100#(and (or (<= main_n 33) (<= main_i 80)) (or (< 33 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15101#(and (or (< 33 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 33)))} is VALID [2019-02-27 12:58:38,642 INFO L273 TraceCheckUtils]: 42: Hoare triple {15101#(and (or (< 33 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 33)))} assume i <= n * 4; {15101#(and (or (< 33 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 33)))} is VALID [2019-02-27 12:58:38,643 INFO L273 TraceCheckUtils]: 43: Hoare triple {15101#(and (or (< 33 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 33)))} assume a[i] != 23;i := i + 4; {15102#(and (or (< 33 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 33)))} is VALID [2019-02-27 12:58:38,644 INFO L273 TraceCheckUtils]: 44: Hoare triple {15102#(and (or (< 33 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 33)))} assume i <= n * 4; {15102#(and (or (< 33 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 33)))} is VALID [2019-02-27 12:58:38,645 INFO L273 TraceCheckUtils]: 45: Hoare triple {15102#(and (or (< 33 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 33)))} assume a[i] != 23;i := i + 4; {15103#(and (or (< 33 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,645 INFO L273 TraceCheckUtils]: 46: Hoare triple {15103#(and (or (< 33 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15103#(and (or (< 33 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,646 INFO L273 TraceCheckUtils]: 47: Hoare triple {15103#(and (or (< 33 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15104#(and (or (< 33 main_n) (<= 96 main_i)) (or (<= main_i 96) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,647 INFO L273 TraceCheckUtils]: 48: Hoare triple {15104#(and (or (< 33 main_n) (<= 96 main_i)) (or (<= main_i 96) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15104#(and (or (< 33 main_n) (<= 96 main_i)) (or (<= main_i 96) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,648 INFO L273 TraceCheckUtils]: 49: Hoare triple {15104#(and (or (< 33 main_n) (<= 96 main_i)) (or (<= main_i 96) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15105#(and (or (< 33 main_n) (<= 100 main_i)) (or (<= main_i 100) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,649 INFO L273 TraceCheckUtils]: 50: Hoare triple {15105#(and (or (< 33 main_n) (<= 100 main_i)) (or (<= main_i 100) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15105#(and (or (< 33 main_n) (<= 100 main_i)) (or (<= main_i 100) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,650 INFO L273 TraceCheckUtils]: 51: Hoare triple {15105#(and (or (< 33 main_n) (<= 100 main_i)) (or (<= main_i 100) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15106#(and (or (<= main_i 104) (<= main_n 33)) (or (< 33 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,651 INFO L273 TraceCheckUtils]: 52: Hoare triple {15106#(and (or (<= main_i 104) (<= main_n 33)) (or (< 33 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15106#(and (or (<= main_i 104) (<= main_n 33)) (or (< 33 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,652 INFO L273 TraceCheckUtils]: 53: Hoare triple {15106#(and (or (<= main_i 104) (<= main_n 33)) (or (< 33 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15107#(and (or (<= main_n 33) (<= main_i 108)) (or (< 33 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,653 INFO L273 TraceCheckUtils]: 54: Hoare triple {15107#(and (or (<= main_n 33) (<= main_i 108)) (or (< 33 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15107#(and (or (<= main_n 33) (<= main_i 108)) (or (< 33 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,654 INFO L273 TraceCheckUtils]: 55: Hoare triple {15107#(and (or (<= main_n 33) (<= main_i 108)) (or (< 33 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15108#(and (or (<= main_n 33) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 112 main_i)))} is VALID [2019-02-27 12:58:38,655 INFO L273 TraceCheckUtils]: 56: Hoare triple {15108#(and (or (<= main_n 33) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 112 main_i)))} assume i <= n * 4; {15108#(and (or (<= main_n 33) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 112 main_i)))} is VALID [2019-02-27 12:58:38,656 INFO L273 TraceCheckUtils]: 57: Hoare triple {15108#(and (or (<= main_n 33) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 112 main_i)))} assume a[i] != 23;i := i + 4; {15109#(and (or (<= main_i 116) (<= main_n 33)) (or (<= 116 main_i) (< 33 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,657 INFO L273 TraceCheckUtils]: 58: Hoare triple {15109#(and (or (<= main_i 116) (<= main_n 33)) (or (<= 116 main_i) (< 33 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15109#(and (or (<= main_i 116) (<= main_n 33)) (or (<= 116 main_i) (< 33 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,658 INFO L273 TraceCheckUtils]: 59: Hoare triple {15109#(and (or (<= main_i 116) (<= main_n 33)) (or (<= 116 main_i) (< 33 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15110#(and (or (< 33 main_n) (<= 120 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 120) (<= main_n 33)))} is VALID [2019-02-27 12:58:38,658 INFO L273 TraceCheckUtils]: 60: Hoare triple {15110#(and (or (< 33 main_n) (<= 120 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 120) (<= main_n 33)))} assume i <= n * 4; {15110#(and (or (< 33 main_n) (<= 120 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 120) (<= main_n 33)))} is VALID [2019-02-27 12:58:38,659 INFO L273 TraceCheckUtils]: 61: Hoare triple {15110#(and (or (< 33 main_n) (<= 120 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 120) (<= main_n 33)))} assume a[i] != 23;i := i + 4; {15111#(and (or (< 33 main_n) (<= 124 main_i)) (or (<= main_i 124) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,660 INFO L273 TraceCheckUtils]: 62: Hoare triple {15111#(and (or (< 33 main_n) (<= 124 main_i)) (or (<= main_i 124) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15111#(and (or (< 33 main_n) (<= 124 main_i)) (or (<= main_i 124) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:38,661 INFO L273 TraceCheckUtils]: 63: Hoare triple {15111#(and (or (< 33 main_n) (<= 124 main_i)) (or (<= main_i 124) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15112#(and (or (<= main_i 128) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 128 main_i)))} is VALID [2019-02-27 12:58:38,662 INFO L273 TraceCheckUtils]: 64: Hoare triple {15112#(and (or (<= main_i 128) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 128 main_i)))} assume i <= n * 4; {15112#(and (or (<= main_i 128) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 128 main_i)))} is VALID [2019-02-27 12:58:38,663 INFO L273 TraceCheckUtils]: 65: Hoare triple {15112#(and (or (<= main_i 128) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 128 main_i)))} assume a[i] != 23;i := i + 4; {15113#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (< 33 main_n) (<= (* 4 main_n) main_i)) (or (<= main_i 132) (<= main_n 33)))))} is VALID [2019-02-27 12:58:38,664 INFO L273 TraceCheckUtils]: 66: Hoare triple {15113#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (< 33 main_n) (<= (* 4 main_n) main_i)) (or (<= main_i 132) (<= main_n 33)))))} assume i <= n * 4; {15114#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 132) (< 33 main_n))))} is VALID [2019-02-27 12:58:38,665 INFO L273 TraceCheckUtils]: 67: Hoare triple {15114#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 132) (< 33 main_n))))} assume a[i] != 23;i := i + 4; {15115#(and (<= main_i 136) (<= 34 main_n))} is VALID [2019-02-27 12:58:38,666 INFO L273 TraceCheckUtils]: 68: Hoare triple {15115#(and (<= main_i 136) (<= 34 main_n))} assume !(i <= n * 4); {15079#false} is VALID [2019-02-27 12:58:38,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 1122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:58:38,697 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:58:38,697 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:58:38,698 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:58:38,698 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:58:38,698 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:58:38,698 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:58:38,707 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-27 12:58:38,707 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-27 12:58:38,736 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-27 12:58:38,736 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 12:58:38,738 WARN L254 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 73 conjunts are in the unsatisfiable core [2019-02-27 12:58:38,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:58:38,748 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:58:38,767 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:58:38,769 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:58:38,778 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:58:38,778 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:58:38,779 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:58:38,779 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_37]. (and (= (store v_main_a_37 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-27 12:58:38,780 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:58:40,741 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:58:40,743 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:58:40,749 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:58:40,749 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:58:40,752 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:58:40,752 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 136) (<= 132 .cse0) (not (= (select main_a 132) 23)) (= 23 (select main_a .cse0)))) [2019-02-27 12:58:40,752 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 136) (<= 132 .cse0) (not (= 132 .cse0)))) [2019-02-27 12:58:40,797 INFO L273 TraceCheckUtils]: 0: Hoare triple {15078#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {15119#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,798 INFO L273 TraceCheckUtils]: 1: Hoare triple {15119#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15123#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:58:40,799 INFO L273 TraceCheckUtils]: 2: Hoare triple {15123#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {15123#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:58:40,800 INFO L273 TraceCheckUtils]: 3: Hoare triple {15123#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {15130#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,801 INFO L273 TraceCheckUtils]: 4: Hoare triple {15130#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15130#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,801 INFO L273 TraceCheckUtils]: 5: Hoare triple {15130#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15137#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:58:40,802 INFO L273 TraceCheckUtils]: 6: Hoare triple {15137#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {15137#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:58:40,803 INFO L273 TraceCheckUtils]: 7: Hoare triple {15137#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {15144#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,803 INFO L273 TraceCheckUtils]: 8: Hoare triple {15144#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15144#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,804 INFO L273 TraceCheckUtils]: 9: Hoare triple {15144#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15151#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,805 INFO L273 TraceCheckUtils]: 10: Hoare triple {15151#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15151#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,806 INFO L273 TraceCheckUtils]: 11: Hoare triple {15151#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15158#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,806 INFO L273 TraceCheckUtils]: 12: Hoare triple {15158#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15158#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,807 INFO L273 TraceCheckUtils]: 13: Hoare triple {15158#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15165#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,808 INFO L273 TraceCheckUtils]: 14: Hoare triple {15165#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15165#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,808 INFO L273 TraceCheckUtils]: 15: Hoare triple {15165#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15172#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,809 INFO L273 TraceCheckUtils]: 16: Hoare triple {15172#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15172#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,810 INFO L273 TraceCheckUtils]: 17: Hoare triple {15172#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15179#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,811 INFO L273 TraceCheckUtils]: 18: Hoare triple {15179#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15179#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,811 INFO L273 TraceCheckUtils]: 19: Hoare triple {15179#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15186#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,812 INFO L273 TraceCheckUtils]: 20: Hoare triple {15186#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15186#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,813 INFO L273 TraceCheckUtils]: 21: Hoare triple {15186#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15193#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,813 INFO L273 TraceCheckUtils]: 22: Hoare triple {15193#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15193#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,814 INFO L273 TraceCheckUtils]: 23: Hoare triple {15193#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15200#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,815 INFO L273 TraceCheckUtils]: 24: Hoare triple {15200#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15200#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,815 INFO L273 TraceCheckUtils]: 25: Hoare triple {15200#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15207#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,816 INFO L273 TraceCheckUtils]: 26: Hoare triple {15207#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15207#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,817 INFO L273 TraceCheckUtils]: 27: Hoare triple {15207#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15214#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,817 INFO L273 TraceCheckUtils]: 28: Hoare triple {15214#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15214#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,818 INFO L273 TraceCheckUtils]: 29: Hoare triple {15214#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15221#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,819 INFO L273 TraceCheckUtils]: 30: Hoare triple {15221#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15221#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,820 INFO L273 TraceCheckUtils]: 31: Hoare triple {15221#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15228#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,820 INFO L273 TraceCheckUtils]: 32: Hoare triple {15228#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15228#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,821 INFO L273 TraceCheckUtils]: 33: Hoare triple {15228#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15235#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,822 INFO L273 TraceCheckUtils]: 34: Hoare triple {15235#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15235#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,822 INFO L273 TraceCheckUtils]: 35: Hoare triple {15235#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15242#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,823 INFO L273 TraceCheckUtils]: 36: Hoare triple {15242#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15242#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,824 INFO L273 TraceCheckUtils]: 37: Hoare triple {15242#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15249#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,824 INFO L273 TraceCheckUtils]: 38: Hoare triple {15249#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15249#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,825 INFO L273 TraceCheckUtils]: 39: Hoare triple {15249#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15256#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:58:40,826 INFO L273 TraceCheckUtils]: 40: Hoare triple {15256#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {15256#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:58:40,827 INFO L273 TraceCheckUtils]: 41: Hoare triple {15256#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {15263#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,827 INFO L273 TraceCheckUtils]: 42: Hoare triple {15263#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15263#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,828 INFO L273 TraceCheckUtils]: 43: Hoare triple {15263#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15270#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,829 INFO L273 TraceCheckUtils]: 44: Hoare triple {15270#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15270#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,830 INFO L273 TraceCheckUtils]: 45: Hoare triple {15270#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15277#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,830 INFO L273 TraceCheckUtils]: 46: Hoare triple {15277#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15277#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,831 INFO L273 TraceCheckUtils]: 47: Hoare triple {15277#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15284#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,832 INFO L273 TraceCheckUtils]: 48: Hoare triple {15284#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15284#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,832 INFO L273 TraceCheckUtils]: 49: Hoare triple {15284#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15291#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,833 INFO L273 TraceCheckUtils]: 50: Hoare triple {15291#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15291#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,834 INFO L273 TraceCheckUtils]: 51: Hoare triple {15291#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15298#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,835 INFO L273 TraceCheckUtils]: 52: Hoare triple {15298#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15298#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,835 INFO L273 TraceCheckUtils]: 53: Hoare triple {15298#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15305#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,836 INFO L273 TraceCheckUtils]: 54: Hoare triple {15305#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15305#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,837 INFO L273 TraceCheckUtils]: 55: Hoare triple {15305#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15312#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,837 INFO L273 TraceCheckUtils]: 56: Hoare triple {15312#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15312#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,838 INFO L273 TraceCheckUtils]: 57: Hoare triple {15312#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15319#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,839 INFO L273 TraceCheckUtils]: 58: Hoare triple {15319#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15319#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,840 INFO L273 TraceCheckUtils]: 59: Hoare triple {15319#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15326#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,840 INFO L273 TraceCheckUtils]: 60: Hoare triple {15326#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15326#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,841 INFO L273 TraceCheckUtils]: 61: Hoare triple {15326#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15333#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,842 INFO L273 TraceCheckUtils]: 62: Hoare triple {15333#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15333#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,843 INFO L273 TraceCheckUtils]: 63: Hoare triple {15333#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15340#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,843 INFO L273 TraceCheckUtils]: 64: Hoare triple {15340#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15340#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,844 INFO L273 TraceCheckUtils]: 65: Hoare triple {15340#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15347#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,845 INFO L273 TraceCheckUtils]: 66: Hoare triple {15347#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15351#(and (<= main_i (* 4 main_n)) (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:40,846 INFO L273 TraceCheckUtils]: 67: Hoare triple {15351#(and (<= main_i (* 4 main_n)) (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15115#(and (<= main_i 136) (<= 34 main_n))} is VALID [2019-02-27 12:58:40,846 INFO L273 TraceCheckUtils]: 68: Hoare triple {15115#(and (<= main_i 136) (<= 34 main_n))} assume !(i <= n * 4); {15079#false} is VALID [2019-02-27 12:58:40,858 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 1122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:58:40,859 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:58:44,443 INFO L273 TraceCheckUtils]: 68: Hoare triple {15358#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {15079#false} is VALID [2019-02-27 12:58:44,444 INFO L273 TraceCheckUtils]: 67: Hoare triple {15362#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {15358#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:58:44,445 INFO L273 TraceCheckUtils]: 66: Hoare triple {15366#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {15362#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:58:44,446 INFO L273 TraceCheckUtils]: 65: Hoare triple {15370#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {15366#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:58:44,446 INFO L273 TraceCheckUtils]: 64: Hoare triple {15370#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {15370#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:58:44,447 INFO L273 TraceCheckUtils]: 63: Hoare triple {15377#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {15370#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:58:44,448 INFO L273 TraceCheckUtils]: 62: Hoare triple {15377#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {15377#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:58:44,449 INFO L273 TraceCheckUtils]: 61: Hoare triple {15384#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {15377#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:58:44,450 INFO L273 TraceCheckUtils]: 60: Hoare triple {15384#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {15384#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:58:44,451 INFO L273 TraceCheckUtils]: 59: Hoare triple {15391#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {15384#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:58:44,451 INFO L273 TraceCheckUtils]: 58: Hoare triple {15391#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {15391#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:58:44,452 INFO L273 TraceCheckUtils]: 57: Hoare triple {15398#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15391#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:58:44,453 INFO L273 TraceCheckUtils]: 56: Hoare triple {15398#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {15398#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:58:44,454 INFO L273 TraceCheckUtils]: 55: Hoare triple {15405#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {15398#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:58:44,454 INFO L273 TraceCheckUtils]: 54: Hoare triple {15405#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {15405#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:58:44,455 INFO L273 TraceCheckUtils]: 53: Hoare triple {15412#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15405#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:58:44,456 INFO L273 TraceCheckUtils]: 52: Hoare triple {15412#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {15412#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:58:44,457 INFO L273 TraceCheckUtils]: 51: Hoare triple {15419#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15412#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:58:44,462 INFO L273 TraceCheckUtils]: 50: Hoare triple {15419#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {15419#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:58:44,463 INFO L273 TraceCheckUtils]: 49: Hoare triple {15426#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15419#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:58:44,463 INFO L273 TraceCheckUtils]: 48: Hoare triple {15426#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {15426#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:58:44,464 INFO L273 TraceCheckUtils]: 47: Hoare triple {15433#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {15426#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:58:44,464 INFO L273 TraceCheckUtils]: 46: Hoare triple {15433#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {15433#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:58:44,465 INFO L273 TraceCheckUtils]: 45: Hoare triple {15440#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15433#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:58:44,465 INFO L273 TraceCheckUtils]: 44: Hoare triple {15440#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {15440#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:58:44,466 INFO L273 TraceCheckUtils]: 43: Hoare triple {15447#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15440#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:58:44,466 INFO L273 TraceCheckUtils]: 42: Hoare triple {15447#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {15447#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:58:44,467 INFO L273 TraceCheckUtils]: 41: Hoare triple {15454#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {15447#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:58:44,467 INFO L273 TraceCheckUtils]: 40: Hoare triple {15454#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {15454#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:58:44,469 INFO L273 TraceCheckUtils]: 39: Hoare triple {15461#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15454#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:58:44,469 INFO L273 TraceCheckUtils]: 38: Hoare triple {15461#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {15461#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:58:44,470 INFO L273 TraceCheckUtils]: 37: Hoare triple {15468#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {15461#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:58:44,471 INFO L273 TraceCheckUtils]: 36: Hoare triple {15468#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {15468#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:58:44,472 INFO L273 TraceCheckUtils]: 35: Hoare triple {15475#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {15468#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:58:44,472 INFO L273 TraceCheckUtils]: 34: Hoare triple {15475#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {15475#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:58:44,474 INFO L273 TraceCheckUtils]: 33: Hoare triple {15482#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {15475#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:58:44,474 INFO L273 TraceCheckUtils]: 32: Hoare triple {15482#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {15482#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:58:44,475 INFO L273 TraceCheckUtils]: 31: Hoare triple {15489#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {15482#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:58:44,476 INFO L273 TraceCheckUtils]: 30: Hoare triple {15489#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {15489#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:58:44,477 INFO L273 TraceCheckUtils]: 29: Hoare triple {15496#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {15489#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:58:44,477 INFO L273 TraceCheckUtils]: 28: Hoare triple {15496#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {15496#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:58:44,478 INFO L273 TraceCheckUtils]: 27: Hoare triple {15503#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {15496#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:58:44,479 INFO L273 TraceCheckUtils]: 26: Hoare triple {15503#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {15503#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 12:58:44,480 INFO L273 TraceCheckUtils]: 25: Hoare triple {15510#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15503#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 12:58:44,481 INFO L273 TraceCheckUtils]: 24: Hoare triple {15510#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {15510#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 12:58:44,482 INFO L273 TraceCheckUtils]: 23: Hoare triple {15517#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15510#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 12:58:44,482 INFO L273 TraceCheckUtils]: 22: Hoare triple {15517#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {15517#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 12:58:44,483 INFO L273 TraceCheckUtils]: 21: Hoare triple {15524#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15517#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 12:58:44,484 INFO L273 TraceCheckUtils]: 20: Hoare triple {15524#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {15524#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 12:58:44,485 INFO L273 TraceCheckUtils]: 19: Hoare triple {15531#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {15524#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 12:58:44,486 INFO L273 TraceCheckUtils]: 18: Hoare triple {15531#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {15531#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 12:58:44,487 INFO L273 TraceCheckUtils]: 17: Hoare triple {15538#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15531#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 12:58:44,487 INFO L273 TraceCheckUtils]: 16: Hoare triple {15538#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {15538#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 12:58:44,488 INFO L273 TraceCheckUtils]: 15: Hoare triple {15545#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {15538#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 12:58:44,489 INFO L273 TraceCheckUtils]: 14: Hoare triple {15545#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {15545#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 12:58:44,490 INFO L273 TraceCheckUtils]: 13: Hoare triple {15552#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {15545#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 12:58:44,490 INFO L273 TraceCheckUtils]: 12: Hoare triple {15552#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {15552#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 12:58:44,491 INFO L273 TraceCheckUtils]: 11: Hoare triple {15559#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {15552#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 12:58:44,492 INFO L273 TraceCheckUtils]: 10: Hoare triple {15559#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {15559#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 12:58:44,493 INFO L273 TraceCheckUtils]: 9: Hoare triple {15566#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15559#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 12:58:44,493 INFO L273 TraceCheckUtils]: 8: Hoare triple {15566#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {15566#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 12:58:44,495 INFO L273 TraceCheckUtils]: 7: Hoare triple {15573#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15566#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 12:58:44,495 INFO L273 TraceCheckUtils]: 6: Hoare triple {15573#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {15573#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 12:58:44,496 INFO L273 TraceCheckUtils]: 5: Hoare triple {15580#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {15573#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 12:58:44,497 INFO L273 TraceCheckUtils]: 4: Hoare triple {15580#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {15580#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 12:58:44,498 INFO L273 TraceCheckUtils]: 3: Hoare triple {15587#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15580#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 12:58:44,498 INFO L273 TraceCheckUtils]: 2: Hoare triple {15587#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {15587#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 12:58:44,499 INFO L273 TraceCheckUtils]: 1: Hoare triple {15594#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {15587#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 12:58:44,500 INFO L273 TraceCheckUtils]: 0: Hoare triple {15078#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {15594#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 12:58:44,519 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 1122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:58:44,537 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:58:44,537 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36, 36] total 107 [2019-02-27 12:58:44,537 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:58:44,538 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 69 [2019-02-27 12:58:44,538 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:58:44,538 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 73 states. [2019-02-27 12:58:44,701 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 137 edges. 137 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:58:44,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 73 states [2019-02-27 12:58:44,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2019-02-27 12:58:44,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1484, Invalid=10288, Unknown=0, NotChecked=0, Total=11772 [2019-02-27 12:58:44,702 INFO L87 Difference]: Start difference. First operand 70 states and 70 transitions. Second operand 73 states. [2019-02-27 12:58:53,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:58:53,644 INFO L93 Difference]: Finished difference Result 74 states and 74 transitions. [2019-02-27 12:58:53,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2019-02-27 12:58:53,645 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 69 [2019-02-27 12:58:53,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:58:53,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2019-02-27 12:58:53,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 74 transitions. [2019-02-27 12:58:53,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2019-02-27 12:58:53,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 74 transitions. [2019-02-27 12:58:53,647 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 38 states and 74 transitions. [2019-02-27 12:58:53,726 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 74 edges. 74 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:58:53,728 INFO L225 Difference]: With dead ends: 74 [2019-02-27 12:58:53,728 INFO L226 Difference]: Without dead ends: 73 [2019-02-27 12:58:53,729 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2660 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=1484, Invalid=10288, Unknown=0, NotChecked=0, Total=11772 [2019-02-27 12:58:53,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2019-02-27 12:58:53,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 72. [2019-02-27 12:58:53,792 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:58:53,792 INFO L82 GeneralOperation]: Start isEquivalent. First operand 73 states. Second operand 72 states. [2019-02-27 12:58:53,792 INFO L74 IsIncluded]: Start isIncluded. First operand 73 states. Second operand 72 states. [2019-02-27 12:58:53,792 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 72 states. [2019-02-27 12:58:53,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:58:53,793 INFO L93 Difference]: Finished difference Result 73 states and 73 transitions. [2019-02-27 12:58:53,794 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 73 transitions. [2019-02-27 12:58:53,794 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:58:53,794 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:58:53,794 INFO L74 IsIncluded]: Start isIncluded. First operand 72 states. Second operand 73 states. [2019-02-27 12:58:53,794 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 73 states. [2019-02-27 12:58:53,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:58:53,795 INFO L93 Difference]: Finished difference Result 73 states and 73 transitions. [2019-02-27 12:58:53,796 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 73 transitions. [2019-02-27 12:58:53,796 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:58:53,796 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:58:53,796 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:58:53,796 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:58:53,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-02-27 12:58:53,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 72 transitions. [2019-02-27 12:58:53,797 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 72 transitions. Word has length 69 [2019-02-27 12:58:53,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:58:53,798 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 72 transitions. [2019-02-27 12:58:53,798 INFO L481 AbstractCegarLoop]: Interpolant automaton has 73 states. [2019-02-27 12:58:53,798 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 72 transitions. [2019-02-27 12:58:53,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-02-27 12:58:53,798 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:58:53,798 INFO L402 BasicCegarLoop]: trace histogram [35, 34, 1, 1] [2019-02-27 12:58:53,799 INFO L423 AbstractCegarLoop]: === Iteration 35 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:58:53,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:58:53,799 INFO L82 PathProgramCache]: Analyzing trace with hash -519178972, now seen corresponding path program 34 times [2019-02-27 12:58:53,799 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:58:53,800 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:58:53,800 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 12:58:53,800 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:58:53,800 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:58:53,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:58:55,557 INFO L273 TraceCheckUtils]: 0: Hoare triple {15960#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {15962#(and (or (<= 0 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 0) (<= main_n 34)))} is VALID [2019-02-27 12:58:55,559 INFO L273 TraceCheckUtils]: 1: Hoare triple {15962#(and (or (<= 0 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 0) (<= main_n 34)))} assume a[i] != 23;i := i + 4; {15963#(and (or (< 34 main_n) (<= 4 main_i)) (or (<= main_i 4) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,559 INFO L273 TraceCheckUtils]: 2: Hoare triple {15963#(and (or (< 34 main_n) (<= 4 main_i)) (or (<= main_i 4) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15963#(and (or (< 34 main_n) (<= 4 main_i)) (or (<= main_i 4) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,560 INFO L273 TraceCheckUtils]: 3: Hoare triple {15963#(and (or (< 34 main_n) (<= 4 main_i)) (or (<= main_i 4) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15964#(and (or (<= 8 main_i) (< 34 main_n)) (or (<= main_i 8) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,561 INFO L273 TraceCheckUtils]: 4: Hoare triple {15964#(and (or (<= 8 main_i) (< 34 main_n)) (or (<= main_i 8) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15964#(and (or (<= 8 main_i) (< 34 main_n)) (or (<= main_i 8) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,562 INFO L273 TraceCheckUtils]: 5: Hoare triple {15964#(and (or (<= 8 main_i) (< 34 main_n)) (or (<= main_i 8) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15965#(and (or (<= main_n 34) (<= main_i 12)) (or (< 34 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,563 INFO L273 TraceCheckUtils]: 6: Hoare triple {15965#(and (or (<= main_n 34) (<= main_i 12)) (or (< 34 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15965#(and (or (<= main_n 34) (<= main_i 12)) (or (< 34 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,564 INFO L273 TraceCheckUtils]: 7: Hoare triple {15965#(and (or (<= main_n 34) (<= main_i 12)) (or (< 34 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15966#(and (or (<= main_i 16) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 16 main_i) (< 34 main_n)))} is VALID [2019-02-27 12:58:55,565 INFO L273 TraceCheckUtils]: 8: Hoare triple {15966#(and (or (<= main_i 16) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 16 main_i) (< 34 main_n)))} assume i <= n * 4; {15966#(and (or (<= main_i 16) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 16 main_i) (< 34 main_n)))} is VALID [2019-02-27 12:58:55,566 INFO L273 TraceCheckUtils]: 9: Hoare triple {15966#(and (or (<= main_i 16) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 16 main_i) (< 34 main_n)))} assume a[i] != 23;i := i + 4; {15967#(and (or (<= main_i 20) (<= main_n 34)) (or (< 34 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,567 INFO L273 TraceCheckUtils]: 10: Hoare triple {15967#(and (or (<= main_i 20) (<= main_n 34)) (or (< 34 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15967#(and (or (<= main_i 20) (<= main_n 34)) (or (< 34 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,568 INFO L273 TraceCheckUtils]: 11: Hoare triple {15967#(and (or (<= main_i 20) (<= main_n 34)) (or (< 34 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15968#(and (or (<= main_i 24) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 24 main_i) (< 34 main_n)))} is VALID [2019-02-27 12:58:55,569 INFO L273 TraceCheckUtils]: 12: Hoare triple {15968#(and (or (<= main_i 24) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 24 main_i) (< 34 main_n)))} assume i <= n * 4; {15968#(and (or (<= main_i 24) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 24 main_i) (< 34 main_n)))} is VALID [2019-02-27 12:58:55,570 INFO L273 TraceCheckUtils]: 13: Hoare triple {15968#(and (or (<= main_i 24) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 24 main_i) (< 34 main_n)))} assume a[i] != 23;i := i + 4; {15969#(and (or (<= 28 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,570 INFO L273 TraceCheckUtils]: 14: Hoare triple {15969#(and (or (<= 28 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15969#(and (or (<= 28 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,572 INFO L273 TraceCheckUtils]: 15: Hoare triple {15969#(and (or (<= 28 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15970#(and (or (<= main_i 32) (<= main_n 34)) (or (<= 32 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,572 INFO L273 TraceCheckUtils]: 16: Hoare triple {15970#(and (or (<= main_i 32) (<= main_n 34)) (or (<= 32 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15970#(and (or (<= main_i 32) (<= main_n 34)) (or (<= 32 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,573 INFO L273 TraceCheckUtils]: 17: Hoare triple {15970#(and (or (<= main_i 32) (<= main_n 34)) (or (<= 32 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15971#(and (or (<= main_i 36) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 36 main_i)))} is VALID [2019-02-27 12:58:55,574 INFO L273 TraceCheckUtils]: 18: Hoare triple {15971#(and (or (<= main_i 36) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 36 main_i)))} assume i <= n * 4; {15971#(and (or (<= main_i 36) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 36 main_i)))} is VALID [2019-02-27 12:58:55,575 INFO L273 TraceCheckUtils]: 19: Hoare triple {15971#(and (or (<= main_i 36) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 36 main_i)))} assume a[i] != 23;i := i + 4; {15972#(and (or (<= 40 main_i) (< 34 main_n)) (or (<= main_i 40) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,576 INFO L273 TraceCheckUtils]: 20: Hoare triple {15972#(and (or (<= 40 main_i) (< 34 main_n)) (or (<= main_i 40) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15972#(and (or (<= 40 main_i) (< 34 main_n)) (or (<= main_i 40) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,577 INFO L273 TraceCheckUtils]: 21: Hoare triple {15972#(and (or (<= 40 main_i) (< 34 main_n)) (or (<= main_i 40) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15973#(and (or (<= main_n 34) (<= main_i 44)) (or (<= 44 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,578 INFO L273 TraceCheckUtils]: 22: Hoare triple {15973#(and (or (<= main_n 34) (<= main_i 44)) (or (<= 44 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15973#(and (or (<= main_n 34) (<= main_i 44)) (or (<= 44 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,579 INFO L273 TraceCheckUtils]: 23: Hoare triple {15973#(and (or (<= main_n 34) (<= main_i 44)) (or (<= 44 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15974#(and (or (<= 48 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,580 INFO L273 TraceCheckUtils]: 24: Hoare triple {15974#(and (or (<= 48 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15974#(and (or (<= 48 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,581 INFO L273 TraceCheckUtils]: 25: Hoare triple {15974#(and (or (<= 48 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15975#(and (or (< 34 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 52) (<= main_n 34)))} is VALID [2019-02-27 12:58:55,582 INFO L273 TraceCheckUtils]: 26: Hoare triple {15975#(and (or (< 34 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 52) (<= main_n 34)))} assume i <= n * 4; {15975#(and (or (< 34 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 52) (<= main_n 34)))} is VALID [2019-02-27 12:58:55,583 INFO L273 TraceCheckUtils]: 27: Hoare triple {15975#(and (or (< 34 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 52) (<= main_n 34)))} assume a[i] != 23;i := i + 4; {15976#(and (or (<= main_i 56) (<= main_n 34)) (or (< 34 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,583 INFO L273 TraceCheckUtils]: 28: Hoare triple {15976#(and (or (<= main_i 56) (<= main_n 34)) (or (< 34 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15976#(and (or (<= main_i 56) (<= main_n 34)) (or (< 34 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,585 INFO L273 TraceCheckUtils]: 29: Hoare triple {15976#(and (or (<= main_i 56) (<= main_n 34)) (or (< 34 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15977#(and (or (<= main_i 60) (<= main_n 34)) (or (<= 60 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,585 INFO L273 TraceCheckUtils]: 30: Hoare triple {15977#(and (or (<= main_i 60) (<= main_n 34)) (or (<= 60 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15977#(and (or (<= main_i 60) (<= main_n 34)) (or (<= 60 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,586 INFO L273 TraceCheckUtils]: 31: Hoare triple {15977#(and (or (<= main_i 60) (<= main_n 34)) (or (<= 60 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15978#(and (or (<= main_i 64) (<= main_n 34)) (or (<= 64 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,587 INFO L273 TraceCheckUtils]: 32: Hoare triple {15978#(and (or (<= main_i 64) (<= main_n 34)) (or (<= 64 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15978#(and (or (<= main_i 64) (<= main_n 34)) (or (<= 64 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,588 INFO L273 TraceCheckUtils]: 33: Hoare triple {15978#(and (or (<= main_i 64) (<= main_n 34)) (or (<= 64 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15979#(and (or (<= main_n 34) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 68 main_i)))} is VALID [2019-02-27 12:58:55,589 INFO L273 TraceCheckUtils]: 34: Hoare triple {15979#(and (or (<= main_n 34) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 68 main_i)))} assume i <= n * 4; {15979#(and (or (<= main_n 34) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 68 main_i)))} is VALID [2019-02-27 12:58:55,590 INFO L273 TraceCheckUtils]: 35: Hoare triple {15979#(and (or (<= main_n 34) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 68 main_i)))} assume a[i] != 23;i := i + 4; {15980#(and (or (<= main_i 72) (<= main_n 34)) (or (<= 72 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,591 INFO L273 TraceCheckUtils]: 36: Hoare triple {15980#(and (or (<= main_i 72) (<= main_n 34)) (or (<= 72 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15980#(and (or (<= main_i 72) (<= main_n 34)) (or (<= 72 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,592 INFO L273 TraceCheckUtils]: 37: Hoare triple {15980#(and (or (<= main_i 72) (<= main_n 34)) (or (<= 72 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15981#(and (or (<= main_i 76) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 34 main_n)))} is VALID [2019-02-27 12:58:55,593 INFO L273 TraceCheckUtils]: 38: Hoare triple {15981#(and (or (<= main_i 76) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 34 main_n)))} assume i <= n * 4; {15981#(and (or (<= main_i 76) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 34 main_n)))} is VALID [2019-02-27 12:58:55,594 INFO L273 TraceCheckUtils]: 39: Hoare triple {15981#(and (or (<= main_i 76) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 34 main_n)))} assume a[i] != 23;i := i + 4; {15982#(and (or (<= 80 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,595 INFO L273 TraceCheckUtils]: 40: Hoare triple {15982#(and (or (<= 80 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15982#(and (or (<= 80 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,596 INFO L273 TraceCheckUtils]: 41: Hoare triple {15982#(and (or (<= 80 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15983#(and (or (< 34 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 34)))} is VALID [2019-02-27 12:58:55,596 INFO L273 TraceCheckUtils]: 42: Hoare triple {15983#(and (or (< 34 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 34)))} assume i <= n * 4; {15983#(and (or (< 34 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 34)))} is VALID [2019-02-27 12:58:55,597 INFO L273 TraceCheckUtils]: 43: Hoare triple {15983#(and (or (< 34 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 34)))} assume a[i] != 23;i := i + 4; {15984#(and (or (< 34 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 34)))} is VALID [2019-02-27 12:58:55,598 INFO L273 TraceCheckUtils]: 44: Hoare triple {15984#(and (or (< 34 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 34)))} assume i <= n * 4; {15984#(and (or (< 34 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 34)))} is VALID [2019-02-27 12:58:55,599 INFO L273 TraceCheckUtils]: 45: Hoare triple {15984#(and (or (< 34 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 34)))} assume a[i] != 23;i := i + 4; {15985#(and (or (< 34 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,600 INFO L273 TraceCheckUtils]: 46: Hoare triple {15985#(and (or (< 34 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15985#(and (or (< 34 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,601 INFO L273 TraceCheckUtils]: 47: Hoare triple {15985#(and (or (< 34 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15986#(and (or (<= 96 main_i) (< 34 main_n)) (or (<= main_i 96) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,602 INFO L273 TraceCheckUtils]: 48: Hoare triple {15986#(and (or (<= 96 main_i) (< 34 main_n)) (or (<= main_i 96) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15986#(and (or (<= 96 main_i) (< 34 main_n)) (or (<= main_i 96) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,603 INFO L273 TraceCheckUtils]: 49: Hoare triple {15986#(and (or (<= 96 main_i) (< 34 main_n)) (or (<= main_i 96) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15987#(and (or (<= 100 main_i) (< 34 main_n)) (or (<= main_i 100) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,604 INFO L273 TraceCheckUtils]: 50: Hoare triple {15987#(and (or (<= 100 main_i) (< 34 main_n)) (or (<= main_i 100) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15987#(and (or (<= 100 main_i) (< 34 main_n)) (or (<= main_i 100) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,605 INFO L273 TraceCheckUtils]: 51: Hoare triple {15987#(and (or (<= 100 main_i) (< 34 main_n)) (or (<= main_i 100) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15988#(and (or (<= main_i 104) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 104 main_i) (< 34 main_n)))} is VALID [2019-02-27 12:58:55,605 INFO L273 TraceCheckUtils]: 52: Hoare triple {15988#(and (or (<= main_i 104) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 104 main_i) (< 34 main_n)))} assume i <= n * 4; {15988#(and (or (<= main_i 104) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 104 main_i) (< 34 main_n)))} is VALID [2019-02-27 12:58:55,607 INFO L273 TraceCheckUtils]: 53: Hoare triple {15988#(and (or (<= main_i 104) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 104 main_i) (< 34 main_n)))} assume a[i] != 23;i := i + 4; {15989#(and (or (<= 108 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 34) (<= main_i 108)))} is VALID [2019-02-27 12:58:55,607 INFO L273 TraceCheckUtils]: 54: Hoare triple {15989#(and (or (<= 108 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 34) (<= main_i 108)))} assume i <= n * 4; {15989#(and (or (<= 108 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 34) (<= main_i 108)))} is VALID [2019-02-27 12:58:55,608 INFO L273 TraceCheckUtils]: 55: Hoare triple {15989#(and (or (<= 108 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 34) (<= main_i 108)))} assume a[i] != 23;i := i + 4; {15990#(and (or (<= main_n 34) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 112 main_i)))} is VALID [2019-02-27 12:58:55,609 INFO L273 TraceCheckUtils]: 56: Hoare triple {15990#(and (or (<= main_n 34) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 112 main_i)))} assume i <= n * 4; {15990#(and (or (<= main_n 34) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 112 main_i)))} is VALID [2019-02-27 12:58:55,610 INFO L273 TraceCheckUtils]: 57: Hoare triple {15990#(and (or (<= main_n 34) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 112 main_i)))} assume a[i] != 23;i := i + 4; {15991#(and (or (<= 116 main_i) (< 34 main_n)) (or (<= main_i 116) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,611 INFO L273 TraceCheckUtils]: 58: Hoare triple {15991#(and (or (<= 116 main_i) (< 34 main_n)) (or (<= main_i 116) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15991#(and (or (<= 116 main_i) (< 34 main_n)) (or (<= main_i 116) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,612 INFO L273 TraceCheckUtils]: 59: Hoare triple {15991#(and (or (<= 116 main_i) (< 34 main_n)) (or (<= main_i 116) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15992#(and (or (<= 120 main_i) (< 34 main_n)) (or (<= main_i 120) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,613 INFO L273 TraceCheckUtils]: 60: Hoare triple {15992#(and (or (<= 120 main_i) (< 34 main_n)) (or (<= main_i 120) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15992#(and (or (<= 120 main_i) (< 34 main_n)) (or (<= main_i 120) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,614 INFO L273 TraceCheckUtils]: 61: Hoare triple {15992#(and (or (<= 120 main_i) (< 34 main_n)) (or (<= main_i 120) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15993#(and (or (<= main_i 124) (<= main_n 34)) (or (<= 124 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,615 INFO L273 TraceCheckUtils]: 62: Hoare triple {15993#(and (or (<= main_i 124) (<= main_n 34)) (or (<= 124 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15993#(and (or (<= main_i 124) (<= main_n 34)) (or (<= 124 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,616 INFO L273 TraceCheckUtils]: 63: Hoare triple {15993#(and (or (<= main_i 124) (<= main_n 34)) (or (<= 124 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15994#(and (or (<= main_i 128) (<= main_n 34)) (or (< 34 main_n) (<= 128 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,617 INFO L273 TraceCheckUtils]: 64: Hoare triple {15994#(and (or (<= main_i 128) (<= main_n 34)) (or (< 34 main_n) (<= 128 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15994#(and (or (<= main_i 128) (<= main_n 34)) (or (< 34 main_n) (<= 128 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,618 INFO L273 TraceCheckUtils]: 65: Hoare triple {15994#(and (or (<= main_i 128) (<= main_n 34)) (or (< 34 main_n) (<= 128 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15995#(and (or (<= 132 main_i) (< 34 main_n)) (or (<= main_i 132) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,619 INFO L273 TraceCheckUtils]: 66: Hoare triple {15995#(and (or (<= 132 main_i) (< 34 main_n)) (or (<= main_i 132) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15995#(and (or (<= 132 main_i) (< 34 main_n)) (or (<= main_i 132) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:55,620 INFO L273 TraceCheckUtils]: 67: Hoare triple {15995#(and (or (<= 132 main_i) (< 34 main_n)) (or (<= main_i 132) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15996#(and (or (= (* 4 main_n) main_i) (and (or (<= (* 4 main_n) main_i) (< 34 main_n)) (or (<= main_i 136) (<= main_n 34)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-02-27 12:58:55,621 INFO L273 TraceCheckUtils]: 68: Hoare triple {15996#(and (or (= (* 4 main_n) main_i) (and (or (<= (* 4 main_n) main_i) (< 34 main_n)) (or (<= main_i 136) (<= main_n 34)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume i <= n * 4; {15997#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 136) (< 34 main_n))))} is VALID [2019-02-27 12:58:55,622 INFO L273 TraceCheckUtils]: 69: Hoare triple {15997#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 136) (< 34 main_n))))} assume a[i] != 23;i := i + 4; {15998#(and (< 34 main_n) (<= main_i 140))} is VALID [2019-02-27 12:58:55,623 INFO L273 TraceCheckUtils]: 70: Hoare triple {15998#(and (< 34 main_n) (<= main_i 140))} assume !(i <= n * 4); {15961#false} is VALID [2019-02-27 12:58:55,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 0 proven. 1190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:58:55,646 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:58:55,646 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:58:55,647 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:58:55,647 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:58:55,647 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:58:55,647 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:58:55,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 12:58:55,656 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-27 12:58:55,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:58:55,675 WARN L254 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 75 conjunts are in the unsatisfiable core [2019-02-27 12:58:55,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:58:55,702 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:58:55,729 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:58:55,732 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:58:55,738 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:58:55,738 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:58:55,740 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:58:55,740 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_38]. (and (= (store v_main_a_38 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-27 12:58:55,740 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:58:57,824 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:58:57,826 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:58:57,832 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:58:57,833 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:58:57,835 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:58:57,835 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= (select main_a 136) 23)) (<= 136 .cse0) (= 23 (select main_a .cse0)) (<= main_i 140))) [2019-02-27 12:58:57,836 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 136 .cse0)) (<= 136 .cse0) (<= main_i 140))) [2019-02-27 12:58:57,881 INFO L273 TraceCheckUtils]: 0: Hoare triple {15960#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {16002#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,881 INFO L273 TraceCheckUtils]: 1: Hoare triple {16002#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16006#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:58:57,882 INFO L273 TraceCheckUtils]: 2: Hoare triple {16006#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {16006#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:58:57,882 INFO L273 TraceCheckUtils]: 3: Hoare triple {16006#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {16013#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,883 INFO L273 TraceCheckUtils]: 4: Hoare triple {16013#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16013#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,883 INFO L273 TraceCheckUtils]: 5: Hoare triple {16013#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16020#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:58:57,884 INFO L273 TraceCheckUtils]: 6: Hoare triple {16020#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {16020#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:58:57,885 INFO L273 TraceCheckUtils]: 7: Hoare triple {16020#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {16027#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,885 INFO L273 TraceCheckUtils]: 8: Hoare triple {16027#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16027#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,886 INFO L273 TraceCheckUtils]: 9: Hoare triple {16027#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16034#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,887 INFO L273 TraceCheckUtils]: 10: Hoare triple {16034#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16034#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,888 INFO L273 TraceCheckUtils]: 11: Hoare triple {16034#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16041#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,888 INFO L273 TraceCheckUtils]: 12: Hoare triple {16041#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16041#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,889 INFO L273 TraceCheckUtils]: 13: Hoare triple {16041#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16048#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,890 INFO L273 TraceCheckUtils]: 14: Hoare triple {16048#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16048#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,890 INFO L273 TraceCheckUtils]: 15: Hoare triple {16048#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16055#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,891 INFO L273 TraceCheckUtils]: 16: Hoare triple {16055#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16055#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,892 INFO L273 TraceCheckUtils]: 17: Hoare triple {16055#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16062#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,892 INFO L273 TraceCheckUtils]: 18: Hoare triple {16062#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16062#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,893 INFO L273 TraceCheckUtils]: 19: Hoare triple {16062#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16069#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,894 INFO L273 TraceCheckUtils]: 20: Hoare triple {16069#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16069#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,894 INFO L273 TraceCheckUtils]: 21: Hoare triple {16069#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16076#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,895 INFO L273 TraceCheckUtils]: 22: Hoare triple {16076#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16076#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,896 INFO L273 TraceCheckUtils]: 23: Hoare triple {16076#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16083#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,896 INFO L273 TraceCheckUtils]: 24: Hoare triple {16083#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16083#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,897 INFO L273 TraceCheckUtils]: 25: Hoare triple {16083#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16090#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,898 INFO L273 TraceCheckUtils]: 26: Hoare triple {16090#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16090#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,899 INFO L273 TraceCheckUtils]: 27: Hoare triple {16090#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16097#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,899 INFO L273 TraceCheckUtils]: 28: Hoare triple {16097#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16097#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,900 INFO L273 TraceCheckUtils]: 29: Hoare triple {16097#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16104#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,901 INFO L273 TraceCheckUtils]: 30: Hoare triple {16104#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16104#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,901 INFO L273 TraceCheckUtils]: 31: Hoare triple {16104#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16111#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,902 INFO L273 TraceCheckUtils]: 32: Hoare triple {16111#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16111#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,903 INFO L273 TraceCheckUtils]: 33: Hoare triple {16111#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16118#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,904 INFO L273 TraceCheckUtils]: 34: Hoare triple {16118#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16118#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,904 INFO L273 TraceCheckUtils]: 35: Hoare triple {16118#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16125#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,905 INFO L273 TraceCheckUtils]: 36: Hoare triple {16125#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16125#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,906 INFO L273 TraceCheckUtils]: 37: Hoare triple {16125#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16132#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,906 INFO L273 TraceCheckUtils]: 38: Hoare triple {16132#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16132#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,907 INFO L273 TraceCheckUtils]: 39: Hoare triple {16132#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16139#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:58:57,908 INFO L273 TraceCheckUtils]: 40: Hoare triple {16139#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {16139#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:58:57,909 INFO L273 TraceCheckUtils]: 41: Hoare triple {16139#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {16146#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,909 INFO L273 TraceCheckUtils]: 42: Hoare triple {16146#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16146#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,910 INFO L273 TraceCheckUtils]: 43: Hoare triple {16146#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16153#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,911 INFO L273 TraceCheckUtils]: 44: Hoare triple {16153#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16153#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,912 INFO L273 TraceCheckUtils]: 45: Hoare triple {16153#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16160#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,912 INFO L273 TraceCheckUtils]: 46: Hoare triple {16160#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16160#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,913 INFO L273 TraceCheckUtils]: 47: Hoare triple {16160#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16167#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,914 INFO L273 TraceCheckUtils]: 48: Hoare triple {16167#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16167#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,914 INFO L273 TraceCheckUtils]: 49: Hoare triple {16167#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16174#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,915 INFO L273 TraceCheckUtils]: 50: Hoare triple {16174#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16174#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,916 INFO L273 TraceCheckUtils]: 51: Hoare triple {16174#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16181#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,916 INFO L273 TraceCheckUtils]: 52: Hoare triple {16181#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16181#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,917 INFO L273 TraceCheckUtils]: 53: Hoare triple {16181#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16188#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,918 INFO L273 TraceCheckUtils]: 54: Hoare triple {16188#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16188#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,918 INFO L273 TraceCheckUtils]: 55: Hoare triple {16188#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16195#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,919 INFO L273 TraceCheckUtils]: 56: Hoare triple {16195#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16195#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,920 INFO L273 TraceCheckUtils]: 57: Hoare triple {16195#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16202#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,920 INFO L273 TraceCheckUtils]: 58: Hoare triple {16202#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16202#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,921 INFO L273 TraceCheckUtils]: 59: Hoare triple {16202#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16209#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,922 INFO L273 TraceCheckUtils]: 60: Hoare triple {16209#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16209#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,922 INFO L273 TraceCheckUtils]: 61: Hoare triple {16209#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16216#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,923 INFO L273 TraceCheckUtils]: 62: Hoare triple {16216#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16216#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,924 INFO L273 TraceCheckUtils]: 63: Hoare triple {16216#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16223#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,925 INFO L273 TraceCheckUtils]: 64: Hoare triple {16223#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16223#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,925 INFO L273 TraceCheckUtils]: 65: Hoare triple {16223#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16230#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,926 INFO L273 TraceCheckUtils]: 66: Hoare triple {16230#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16230#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,927 INFO L273 TraceCheckUtils]: 67: Hoare triple {16230#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16237#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,927 INFO L273 TraceCheckUtils]: 68: Hoare triple {16237#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16241#(and (= main_i 136) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:58:57,928 INFO L273 TraceCheckUtils]: 69: Hoare triple {16241#(and (= main_i 136) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15998#(and (< 34 main_n) (<= main_i 140))} is VALID [2019-02-27 12:58:57,929 INFO L273 TraceCheckUtils]: 70: Hoare triple {15998#(and (< 34 main_n) (<= main_i 140))} assume !(i <= n * 4); {15961#false} is VALID [2019-02-27 12:58:57,941 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 0 proven. 1190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:58:57,941 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:59:01,767 INFO L273 TraceCheckUtils]: 70: Hoare triple {16248#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {15961#false} is VALID [2019-02-27 12:59:01,768 INFO L273 TraceCheckUtils]: 69: Hoare triple {16252#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {16248#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:59:01,769 INFO L273 TraceCheckUtils]: 68: Hoare triple {16256#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {16252#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:59:01,770 INFO L273 TraceCheckUtils]: 67: Hoare triple {16260#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {16256#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:59:01,770 INFO L273 TraceCheckUtils]: 66: Hoare triple {16260#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {16260#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:59:01,771 INFO L273 TraceCheckUtils]: 65: Hoare triple {16267#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {16260#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:59:01,772 INFO L273 TraceCheckUtils]: 64: Hoare triple {16267#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {16267#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:59:01,773 INFO L273 TraceCheckUtils]: 63: Hoare triple {16274#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {16267#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:59:01,774 INFO L273 TraceCheckUtils]: 62: Hoare triple {16274#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {16274#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:59:01,775 INFO L273 TraceCheckUtils]: 61: Hoare triple {16281#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {16274#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:59:01,775 INFO L273 TraceCheckUtils]: 60: Hoare triple {16281#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {16281#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:59:01,776 INFO L273 TraceCheckUtils]: 59: Hoare triple {16288#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16281#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:59:01,777 INFO L273 TraceCheckUtils]: 58: Hoare triple {16288#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {16288#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:59:01,778 INFO L273 TraceCheckUtils]: 57: Hoare triple {16295#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {16288#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:59:01,779 INFO L273 TraceCheckUtils]: 56: Hoare triple {16295#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {16295#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:59:01,780 INFO L273 TraceCheckUtils]: 55: Hoare triple {16302#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16295#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:59:01,780 INFO L273 TraceCheckUtils]: 54: Hoare triple {16302#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {16302#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:59:01,781 INFO L273 TraceCheckUtils]: 53: Hoare triple {16309#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16302#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:59:01,782 INFO L273 TraceCheckUtils]: 52: Hoare triple {16309#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {16309#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:59:01,783 INFO L273 TraceCheckUtils]: 51: Hoare triple {16316#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16309#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:59:01,784 INFO L273 TraceCheckUtils]: 50: Hoare triple {16316#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {16316#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:59:01,785 INFO L273 TraceCheckUtils]: 49: Hoare triple {16323#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {16316#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:59:01,785 INFO L273 TraceCheckUtils]: 48: Hoare triple {16323#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {16323#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:59:01,786 INFO L273 TraceCheckUtils]: 47: Hoare triple {16330#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16323#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:59:01,787 INFO L273 TraceCheckUtils]: 46: Hoare triple {16330#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {16330#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:59:01,788 INFO L273 TraceCheckUtils]: 45: Hoare triple {16337#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16330#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:59:01,789 INFO L273 TraceCheckUtils]: 44: Hoare triple {16337#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {16337#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:59:01,790 INFO L273 TraceCheckUtils]: 43: Hoare triple {16344#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {16337#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:59:01,790 INFO L273 TraceCheckUtils]: 42: Hoare triple {16344#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {16344#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:59:01,791 INFO L273 TraceCheckUtils]: 41: Hoare triple {16351#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16344#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:59:01,792 INFO L273 TraceCheckUtils]: 40: Hoare triple {16351#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {16351#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:59:01,793 INFO L273 TraceCheckUtils]: 39: Hoare triple {16358#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {16351#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:59:01,794 INFO L273 TraceCheckUtils]: 38: Hoare triple {16358#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {16358#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:59:01,795 INFO L273 TraceCheckUtils]: 37: Hoare triple {16365#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {16358#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:59:01,795 INFO L273 TraceCheckUtils]: 36: Hoare triple {16365#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {16365#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:59:01,796 INFO L273 TraceCheckUtils]: 35: Hoare triple {16372#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {16365#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:59:01,797 INFO L273 TraceCheckUtils]: 34: Hoare triple {16372#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {16372#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:59:01,798 INFO L273 TraceCheckUtils]: 33: Hoare triple {16379#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {16372#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:59:01,799 INFO L273 TraceCheckUtils]: 32: Hoare triple {16379#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {16379#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:59:01,800 INFO L273 TraceCheckUtils]: 31: Hoare triple {16386#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {16379#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:59:01,800 INFO L273 TraceCheckUtils]: 30: Hoare triple {16386#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {16386#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:59:01,801 INFO L273 TraceCheckUtils]: 29: Hoare triple {16393#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {16386#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:59:01,802 INFO L273 TraceCheckUtils]: 28: Hoare triple {16393#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {16393#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 12:59:01,803 INFO L273 TraceCheckUtils]: 27: Hoare triple {16400#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16393#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 12:59:01,804 INFO L273 TraceCheckUtils]: 26: Hoare triple {16400#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {16400#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 12:59:01,805 INFO L273 TraceCheckUtils]: 25: Hoare triple {16407#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16400#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 12:59:01,805 INFO L273 TraceCheckUtils]: 24: Hoare triple {16407#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {16407#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 12:59:01,806 INFO L273 TraceCheckUtils]: 23: Hoare triple {16414#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16407#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 12:59:01,807 INFO L273 TraceCheckUtils]: 22: Hoare triple {16414#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {16414#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 12:59:01,808 INFO L273 TraceCheckUtils]: 21: Hoare triple {16421#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {16414#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 12:59:01,808 INFO L273 TraceCheckUtils]: 20: Hoare triple {16421#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {16421#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 12:59:01,810 INFO L273 TraceCheckUtils]: 19: Hoare triple {16428#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16421#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 12:59:01,810 INFO L273 TraceCheckUtils]: 18: Hoare triple {16428#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {16428#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 12:59:01,811 INFO L273 TraceCheckUtils]: 17: Hoare triple {16435#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {16428#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 12:59:01,812 INFO L273 TraceCheckUtils]: 16: Hoare triple {16435#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {16435#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 12:59:01,813 INFO L273 TraceCheckUtils]: 15: Hoare triple {16442#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {16435#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 12:59:01,813 INFO L273 TraceCheckUtils]: 14: Hoare triple {16442#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {16442#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 12:59:01,814 INFO L273 TraceCheckUtils]: 13: Hoare triple {16449#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {16442#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 12:59:01,815 INFO L273 TraceCheckUtils]: 12: Hoare triple {16449#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {16449#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 12:59:01,816 INFO L273 TraceCheckUtils]: 11: Hoare triple {16456#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16449#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 12:59:01,816 INFO L273 TraceCheckUtils]: 10: Hoare triple {16456#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {16456#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 12:59:01,817 INFO L273 TraceCheckUtils]: 9: Hoare triple {16463#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16456#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 12:59:01,818 INFO L273 TraceCheckUtils]: 8: Hoare triple {16463#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {16463#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 12:59:01,819 INFO L273 TraceCheckUtils]: 7: Hoare triple {16470#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {16463#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 12:59:01,820 INFO L273 TraceCheckUtils]: 6: Hoare triple {16470#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {16470#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 12:59:01,821 INFO L273 TraceCheckUtils]: 5: Hoare triple {16477#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16470#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 12:59:01,821 INFO L273 TraceCheckUtils]: 4: Hoare triple {16477#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {16477#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 12:59:01,822 INFO L273 TraceCheckUtils]: 3: Hoare triple {16484#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {16477#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 12:59:01,823 INFO L273 TraceCheckUtils]: 2: Hoare triple {16484#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {16484#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 12:59:01,824 INFO L273 TraceCheckUtils]: 1: Hoare triple {16491#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {16484#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 12:59:01,825 INFO L273 TraceCheckUtils]: 0: Hoare triple {15960#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {16491#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 12:59:01,851 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 0 proven. 1190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:59:01,869 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:59:01,869 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 37] total 110 [2019-02-27 12:59:01,869 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:59:01,870 INFO L78 Accepts]: Start accepts. Automaton has 75 states. Word has length 71 [2019-02-27 12:59:01,870 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:59:01,870 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 75 states. [2019-02-27 12:59:02,042 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 141 edges. 141 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:59:02,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 75 states [2019-02-27 12:59:02,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2019-02-27 12:59:02,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1562, Invalid=10870, Unknown=0, NotChecked=0, Total=12432 [2019-02-27 12:59:02,043 INFO L87 Difference]: Start difference. First operand 72 states and 72 transitions. Second operand 75 states. [2019-02-27 12:59:12,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:59:12,631 INFO L93 Difference]: Finished difference Result 76 states and 76 transitions. [2019-02-27 12:59:12,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2019-02-27 12:59:12,631 INFO L78 Accepts]: Start accepts. Automaton has 75 states. Word has length 71 [2019-02-27 12:59:12,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:59:12,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-02-27 12:59:12,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 76 transitions. [2019-02-27 12:59:12,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-02-27 12:59:12,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 76 transitions. [2019-02-27 12:59:12,633 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 39 states and 76 transitions. [2019-02-27 12:59:12,713 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 76 edges. 76 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:59:12,714 INFO L225 Difference]: With dead ends: 76 [2019-02-27 12:59:12,714 INFO L226 Difference]: Without dead ends: 75 [2019-02-27 12:59:12,715 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2808 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=1562, Invalid=10870, Unknown=0, NotChecked=0, Total=12432 [2019-02-27 12:59:12,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2019-02-27 12:59:12,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 74. [2019-02-27 12:59:12,798 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:59:12,798 INFO L82 GeneralOperation]: Start isEquivalent. First operand 75 states. Second operand 74 states. [2019-02-27 12:59:12,798 INFO L74 IsIncluded]: Start isIncluded. First operand 75 states. Second operand 74 states. [2019-02-27 12:59:12,799 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 74 states. [2019-02-27 12:59:12,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:59:12,800 INFO L93 Difference]: Finished difference Result 75 states and 75 transitions. [2019-02-27 12:59:12,800 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 75 transitions. [2019-02-27 12:59:12,800 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:59:12,800 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:59:12,801 INFO L74 IsIncluded]: Start isIncluded. First operand 74 states. Second operand 75 states. [2019-02-27 12:59:12,801 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 75 states. [2019-02-27 12:59:12,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:59:12,801 INFO L93 Difference]: Finished difference Result 75 states and 75 transitions. [2019-02-27 12:59:12,802 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 75 transitions. [2019-02-27 12:59:12,802 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:59:12,802 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:59:12,802 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:59:12,802 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:59:12,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-02-27 12:59:12,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 74 transitions. [2019-02-27 12:59:12,803 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 74 transitions. Word has length 71 [2019-02-27 12:59:12,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:59:12,803 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 74 transitions. [2019-02-27 12:59:12,803 INFO L481 AbstractCegarLoop]: Interpolant automaton has 75 states. [2019-02-27 12:59:12,803 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 74 transitions. [2019-02-27 12:59:12,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-02-27 12:59:12,803 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:59:12,804 INFO L402 BasicCegarLoop]: trace histogram [36, 35, 1, 1] [2019-02-27 12:59:12,804 INFO L423 AbstractCegarLoop]: === Iteration 36 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:59:12,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:59:12,804 INFO L82 PathProgramCache]: Analyzing trace with hash -714784666, now seen corresponding path program 35 times [2019-02-27 12:59:12,804 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:59:12,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:59:12,805 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 12:59:12,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:59:12,805 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:59:12,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:59:15,016 INFO L273 TraceCheckUtils]: 0: Hoare triple {16867#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {16869#(and (or (<= main_i 0) (<= main_n 35)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} is VALID [2019-02-27 12:59:15,018 INFO L273 TraceCheckUtils]: 1: Hoare triple {16869#(and (or (<= main_i 0) (<= main_n 35)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} assume a[i] != 23;i := i + 4; {16870#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,018 INFO L273 TraceCheckUtils]: 2: Hoare triple {16870#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 35)))} assume i <= n * 4; {16870#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,019 INFO L273 TraceCheckUtils]: 3: Hoare triple {16870#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16871#(and (or (< 35 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,020 INFO L273 TraceCheckUtils]: 4: Hoare triple {16871#(and (or (< 35 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 35)))} assume i <= n * 4; {16871#(and (or (< 35 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,021 INFO L273 TraceCheckUtils]: 5: Hoare triple {16871#(and (or (< 35 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16872#(and (or (<= main_n 35) (<= main_i 12)) (or (< 35 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:15,022 INFO L273 TraceCheckUtils]: 6: Hoare triple {16872#(and (or (<= main_n 35) (<= main_i 12)) (or (< 35 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {16872#(and (or (<= main_n 35) (<= main_i 12)) (or (< 35 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:15,023 INFO L273 TraceCheckUtils]: 7: Hoare triple {16872#(and (or (<= main_n 35) (<= main_i 12)) (or (< 35 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {16873#(and (or (<= main_i 16) (<= main_n 35)) (or (< 35 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:15,024 INFO L273 TraceCheckUtils]: 8: Hoare triple {16873#(and (or (<= main_i 16) (<= main_n 35)) (or (< 35 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {16873#(and (or (<= main_i 16) (<= main_n 35)) (or (< 35 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:15,025 INFO L273 TraceCheckUtils]: 9: Hoare triple {16873#(and (or (<= main_i 16) (<= main_n 35)) (or (< 35 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {16874#(and (or (< 35 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,026 INFO L273 TraceCheckUtils]: 10: Hoare triple {16874#(and (or (< 35 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 35)))} assume i <= n * 4; {16874#(and (or (< 35 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,027 INFO L273 TraceCheckUtils]: 11: Hoare triple {16874#(and (or (< 35 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16875#(and (or (<= main_i 24) (<= main_n 35)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} is VALID [2019-02-27 12:59:15,027 INFO L273 TraceCheckUtils]: 12: Hoare triple {16875#(and (or (<= main_i 24) (<= main_n 35)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} assume i <= n * 4; {16875#(and (or (<= main_i 24) (<= main_n 35)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} is VALID [2019-02-27 12:59:15,029 INFO L273 TraceCheckUtils]: 13: Hoare triple {16875#(and (or (<= main_i 24) (<= main_n 35)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} assume a[i] != 23;i := i + 4; {16876#(and (or (<= main_n 35) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} is VALID [2019-02-27 12:59:15,029 INFO L273 TraceCheckUtils]: 14: Hoare triple {16876#(and (or (<= main_n 35) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} assume i <= n * 4; {16876#(and (or (<= main_n 35) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} is VALID [2019-02-27 12:59:15,030 INFO L273 TraceCheckUtils]: 15: Hoare triple {16876#(and (or (<= main_n 35) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} assume a[i] != 23;i := i + 4; {16877#(and (or (< 35 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,031 INFO L273 TraceCheckUtils]: 16: Hoare triple {16877#(and (or (< 35 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 35)))} assume i <= n * 4; {16877#(and (or (< 35 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,032 INFO L273 TraceCheckUtils]: 17: Hoare triple {16877#(and (or (< 35 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16878#(and (or (<= main_i 36) (<= main_n 35)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 35 main_n)))} is VALID [2019-02-27 12:59:15,033 INFO L273 TraceCheckUtils]: 18: Hoare triple {16878#(and (or (<= main_i 36) (<= main_n 35)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 35 main_n)))} assume i <= n * 4; {16878#(and (or (<= main_i 36) (<= main_n 35)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 35 main_n)))} is VALID [2019-02-27 12:59:15,034 INFO L273 TraceCheckUtils]: 19: Hoare triple {16878#(and (or (<= main_i 36) (<= main_n 35)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 35 main_n)))} assume a[i] != 23;i := i + 4; {16879#(and (or (< 35 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,035 INFO L273 TraceCheckUtils]: 20: Hoare triple {16879#(and (or (< 35 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 35)))} assume i <= n * 4; {16879#(and (or (< 35 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,036 INFO L273 TraceCheckUtils]: 21: Hoare triple {16879#(and (or (< 35 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16880#(and (or (<= main_n 35) (<= main_i 44)) (or (< 35 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:15,037 INFO L273 TraceCheckUtils]: 22: Hoare triple {16880#(and (or (<= main_n 35) (<= main_i 44)) (or (< 35 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {16880#(and (or (<= main_n 35) (<= main_i 44)) (or (< 35 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:15,038 INFO L273 TraceCheckUtils]: 23: Hoare triple {16880#(and (or (<= main_n 35) (<= main_i 44)) (or (< 35 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {16881#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_n 35) (<= main_i 48)))} is VALID [2019-02-27 12:59:15,039 INFO L273 TraceCheckUtils]: 24: Hoare triple {16881#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_n 35) (<= main_i 48)))} assume i <= n * 4; {16881#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_n 35) (<= main_i 48)))} is VALID [2019-02-27 12:59:15,040 INFO L273 TraceCheckUtils]: 25: Hoare triple {16881#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_n 35) (<= main_i 48)))} assume a[i] != 23;i := i + 4; {16882#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 52) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,041 INFO L273 TraceCheckUtils]: 26: Hoare triple {16882#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 52) (<= main_n 35)))} assume i <= n * 4; {16882#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 52) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,042 INFO L273 TraceCheckUtils]: 27: Hoare triple {16882#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 52) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16883#(and (or (< 35 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,042 INFO L273 TraceCheckUtils]: 28: Hoare triple {16883#(and (or (< 35 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 35)))} assume i <= n * 4; {16883#(and (or (< 35 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,044 INFO L273 TraceCheckUtils]: 29: Hoare triple {16883#(and (or (< 35 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16884#(and (or (<= main_i 60) (<= main_n 35)) (or (< 35 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:15,044 INFO L273 TraceCheckUtils]: 30: Hoare triple {16884#(and (or (<= main_i 60) (<= main_n 35)) (or (< 35 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {16884#(and (or (<= main_i 60) (<= main_n 35)) (or (< 35 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:15,045 INFO L273 TraceCheckUtils]: 31: Hoare triple {16884#(and (or (<= main_i 60) (<= main_n 35)) (or (< 35 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {16885#(and (or (< 35 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 64) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,046 INFO L273 TraceCheckUtils]: 32: Hoare triple {16885#(and (or (< 35 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 64) (<= main_n 35)))} assume i <= n * 4; {16885#(and (or (< 35 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 64) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,047 INFO L273 TraceCheckUtils]: 33: Hoare triple {16885#(and (or (< 35 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 64) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16886#(and (or (<= main_n 35) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} is VALID [2019-02-27 12:59:15,048 INFO L273 TraceCheckUtils]: 34: Hoare triple {16886#(and (or (<= main_n 35) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} assume i <= n * 4; {16886#(and (or (<= main_n 35) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} is VALID [2019-02-27 12:59:15,049 INFO L273 TraceCheckUtils]: 35: Hoare triple {16886#(and (or (<= main_n 35) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} assume a[i] != 23;i := i + 4; {16887#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 72) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,050 INFO L273 TraceCheckUtils]: 36: Hoare triple {16887#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 72) (<= main_n 35)))} assume i <= n * 4; {16887#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 72) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,051 INFO L273 TraceCheckUtils]: 37: Hoare triple {16887#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 72) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16888#(and (or (<= main_i 76) (<= main_n 35)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} is VALID [2019-02-27 12:59:15,052 INFO L273 TraceCheckUtils]: 38: Hoare triple {16888#(and (or (<= main_i 76) (<= main_n 35)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} assume i <= n * 4; {16888#(and (or (<= main_i 76) (<= main_n 35)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} is VALID [2019-02-27 12:59:15,053 INFO L273 TraceCheckUtils]: 39: Hoare triple {16888#(and (or (<= main_i 76) (<= main_n 35)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} assume a[i] != 23;i := i + 4; {16889#(and (or (<= main_n 35) (<= main_i 80)) (or (< 35 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:15,053 INFO L273 TraceCheckUtils]: 40: Hoare triple {16889#(and (or (<= main_n 35) (<= main_i 80)) (or (< 35 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {16889#(and (or (<= main_n 35) (<= main_i 80)) (or (< 35 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:15,054 INFO L273 TraceCheckUtils]: 41: Hoare triple {16889#(and (or (<= main_n 35) (<= main_i 80)) (or (< 35 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {16890#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 35 main_n)) (or (<= main_i 84) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,055 INFO L273 TraceCheckUtils]: 42: Hoare triple {16890#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 35 main_n)) (or (<= main_i 84) (<= main_n 35)))} assume i <= n * 4; {16890#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 35 main_n)) (or (<= main_i 84) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,056 INFO L273 TraceCheckUtils]: 43: Hoare triple {16890#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 35 main_n)) (or (<= main_i 84) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16891#(and (or (<= main_i 88) (<= main_n 35)) (or (< 35 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:15,057 INFO L273 TraceCheckUtils]: 44: Hoare triple {16891#(and (or (<= main_i 88) (<= main_n 35)) (or (< 35 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {16891#(and (or (<= main_i 88) (<= main_n 35)) (or (< 35 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:15,058 INFO L273 TraceCheckUtils]: 45: Hoare triple {16891#(and (or (<= main_i 88) (<= main_n 35)) (or (< 35 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {16892#(and (or (<= main_i 92) (<= main_n 35)) (or (< 35 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:15,059 INFO L273 TraceCheckUtils]: 46: Hoare triple {16892#(and (or (<= main_i 92) (<= main_n 35)) (or (< 35 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {16892#(and (or (<= main_i 92) (<= main_n 35)) (or (< 35 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:15,060 INFO L273 TraceCheckUtils]: 47: Hoare triple {16892#(and (or (<= main_i 92) (<= main_n 35)) (or (< 35 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {16893#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 96) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,061 INFO L273 TraceCheckUtils]: 48: Hoare triple {16893#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 96) (<= main_n 35)))} assume i <= n * 4; {16893#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 96) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,062 INFO L273 TraceCheckUtils]: 49: Hoare triple {16893#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 96) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16894#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 100) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,063 INFO L273 TraceCheckUtils]: 50: Hoare triple {16894#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 100) (<= main_n 35)))} assume i <= n * 4; {16894#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 100) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,064 INFO L273 TraceCheckUtils]: 51: Hoare triple {16894#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 100) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16895#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 104) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,065 INFO L273 TraceCheckUtils]: 52: Hoare triple {16895#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 104) (<= main_n 35)))} assume i <= n * 4; {16895#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 104) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,066 INFO L273 TraceCheckUtils]: 53: Hoare triple {16895#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 104) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16896#(and (or (< 35 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 35) (<= main_i 108)))} is VALID [2019-02-27 12:59:15,067 INFO L273 TraceCheckUtils]: 54: Hoare triple {16896#(and (or (< 35 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 35) (<= main_i 108)))} assume i <= n * 4; {16896#(and (or (< 35 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 35) (<= main_i 108)))} is VALID [2019-02-27 12:59:15,068 INFO L273 TraceCheckUtils]: 55: Hoare triple {16896#(and (or (< 35 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 35) (<= main_i 108)))} assume a[i] != 23;i := i + 4; {16897#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 35) (<= main_i 112)))} is VALID [2019-02-27 12:59:15,068 INFO L273 TraceCheckUtils]: 56: Hoare triple {16897#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 35) (<= main_i 112)))} assume i <= n * 4; {16897#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 35) (<= main_i 112)))} is VALID [2019-02-27 12:59:15,069 INFO L273 TraceCheckUtils]: 57: Hoare triple {16897#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 35) (<= main_i 112)))} assume a[i] != 23;i := i + 4; {16898#(and (or (< 35 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,070 INFO L273 TraceCheckUtils]: 58: Hoare triple {16898#(and (or (< 35 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 35)))} assume i <= n * 4; {16898#(and (or (< 35 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,071 INFO L273 TraceCheckUtils]: 59: Hoare triple {16898#(and (or (< 35 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16899#(and (or (< 35 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,072 INFO L273 TraceCheckUtils]: 60: Hoare triple {16899#(and (or (< 35 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 35)))} assume i <= n * 4; {16899#(and (or (< 35 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,073 INFO L273 TraceCheckUtils]: 61: Hoare triple {16899#(and (or (< 35 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16900#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 124) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,074 INFO L273 TraceCheckUtils]: 62: Hoare triple {16900#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 124) (<= main_n 35)))} assume i <= n * 4; {16900#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 124) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,075 INFO L273 TraceCheckUtils]: 63: Hoare triple {16900#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 124) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16901#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))) (or (<= main_i 128) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,076 INFO L273 TraceCheckUtils]: 64: Hoare triple {16901#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))) (or (<= main_i 128) (<= main_n 35)))} assume i <= n * 4; {16901#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))) (or (<= main_i 128) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,077 INFO L273 TraceCheckUtils]: 65: Hoare triple {16901#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))) (or (<= main_i 128) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16902#(and (or (<= main_i 132) (<= main_n 35)) (or (< 35 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:15,078 INFO L273 TraceCheckUtils]: 66: Hoare triple {16902#(and (or (<= main_i 132) (<= main_n 35)) (or (< 35 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {16902#(and (or (<= main_i 132) (<= main_n 35)) (or (< 35 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:15,079 INFO L273 TraceCheckUtils]: 67: Hoare triple {16902#(and (or (<= main_i 132) (<= main_n 35)) (or (< 35 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {16903#(and (or (< 35 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,080 INFO L273 TraceCheckUtils]: 68: Hoare triple {16903#(and (or (< 35 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 35)))} assume i <= n * 4; {16903#(and (or (< 35 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 35)))} is VALID [2019-02-27 12:59:15,081 INFO L273 TraceCheckUtils]: 69: Hoare triple {16903#(and (or (< 35 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16904#(and (or (<= main_n 35) (<= main_i 140)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 35 main_n)))} is VALID [2019-02-27 12:59:15,082 INFO L273 TraceCheckUtils]: 70: Hoare triple {16904#(and (or (<= main_n 35) (<= main_i 140)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 35 main_n)))} assume i <= n * 4; {16905#(and (or (< 35 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 140))} is VALID [2019-02-27 12:59:15,083 INFO L273 TraceCheckUtils]: 71: Hoare triple {16905#(and (or (< 35 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 140))} assume a[i] != 23;i := i + 4; {16906#(and (<= 36 main_n) (<= main_i 144))} is VALID [2019-02-27 12:59:15,084 INFO L273 TraceCheckUtils]: 72: Hoare triple {16906#(and (<= 36 main_n) (<= main_i 144))} assume !(i <= n * 4); {16868#false} is VALID [2019-02-27 12:59:15,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 1260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:59:15,108 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:59:15,108 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:59:15,109 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:59:15,109 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:59:15,109 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:59:15,109 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:59:15,117 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-27 12:59:15,117 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-27 12:59:15,170 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 36 check-sat command(s) [2019-02-27 12:59:15,170 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 12:59:15,172 WARN L254 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 77 conjunts are in the unsatisfiable core [2019-02-27 12:59:15,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:59:15,195 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:59:15,203 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:59:15,204 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:59:15,209 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:59:15,210 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:59:15,212 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:59:15,212 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_39]. (and (= (store v_main_a_39 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-27 12:59:15,212 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:59:17,408 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:59:17,410 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:59:17,415 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:59:17,415 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:59:17,417 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:59:17,418 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 140 .cse0) (= 23 (select main_a .cse0)) (not (= (select main_a 140) 23)) (<= main_i 144))) [2019-02-27 12:59:17,418 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 140 .cse0) (not (= 140 .cse0)) (<= main_i 144))) [2019-02-27 12:59:17,462 INFO L273 TraceCheckUtils]: 0: Hoare triple {16867#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {16910#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,462 INFO L273 TraceCheckUtils]: 1: Hoare triple {16910#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16914#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:59:17,463 INFO L273 TraceCheckUtils]: 2: Hoare triple {16914#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {16914#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:59:17,464 INFO L273 TraceCheckUtils]: 3: Hoare triple {16914#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {16921#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,464 INFO L273 TraceCheckUtils]: 4: Hoare triple {16921#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16921#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,465 INFO L273 TraceCheckUtils]: 5: Hoare triple {16921#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16928#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:59:17,466 INFO L273 TraceCheckUtils]: 6: Hoare triple {16928#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {16928#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:59:17,467 INFO L273 TraceCheckUtils]: 7: Hoare triple {16928#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {16935#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,467 INFO L273 TraceCheckUtils]: 8: Hoare triple {16935#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16935#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,468 INFO L273 TraceCheckUtils]: 9: Hoare triple {16935#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16942#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,469 INFO L273 TraceCheckUtils]: 10: Hoare triple {16942#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16942#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,469 INFO L273 TraceCheckUtils]: 11: Hoare triple {16942#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16949#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,470 INFO L273 TraceCheckUtils]: 12: Hoare triple {16949#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16949#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,471 INFO L273 TraceCheckUtils]: 13: Hoare triple {16949#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16956#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,471 INFO L273 TraceCheckUtils]: 14: Hoare triple {16956#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16956#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,472 INFO L273 TraceCheckUtils]: 15: Hoare triple {16956#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16963#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,473 INFO L273 TraceCheckUtils]: 16: Hoare triple {16963#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16963#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,473 INFO L273 TraceCheckUtils]: 17: Hoare triple {16963#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16970#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,474 INFO L273 TraceCheckUtils]: 18: Hoare triple {16970#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16970#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,475 INFO L273 TraceCheckUtils]: 19: Hoare triple {16970#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16977#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,475 INFO L273 TraceCheckUtils]: 20: Hoare triple {16977#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16977#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,476 INFO L273 TraceCheckUtils]: 21: Hoare triple {16977#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16984#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,477 INFO L273 TraceCheckUtils]: 22: Hoare triple {16984#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16984#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,477 INFO L273 TraceCheckUtils]: 23: Hoare triple {16984#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16991#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,478 INFO L273 TraceCheckUtils]: 24: Hoare triple {16991#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16991#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,479 INFO L273 TraceCheckUtils]: 25: Hoare triple {16991#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16998#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,479 INFO L273 TraceCheckUtils]: 26: Hoare triple {16998#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16998#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,480 INFO L273 TraceCheckUtils]: 27: Hoare triple {16998#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17005#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,481 INFO L273 TraceCheckUtils]: 28: Hoare triple {17005#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17005#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,481 INFO L273 TraceCheckUtils]: 29: Hoare triple {17005#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17012#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,482 INFO L273 TraceCheckUtils]: 30: Hoare triple {17012#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17012#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,483 INFO L273 TraceCheckUtils]: 31: Hoare triple {17012#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17019#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,483 INFO L273 TraceCheckUtils]: 32: Hoare triple {17019#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17019#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,484 INFO L273 TraceCheckUtils]: 33: Hoare triple {17019#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17026#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,485 INFO L273 TraceCheckUtils]: 34: Hoare triple {17026#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17026#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,485 INFO L273 TraceCheckUtils]: 35: Hoare triple {17026#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17033#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,486 INFO L273 TraceCheckUtils]: 36: Hoare triple {17033#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17033#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,487 INFO L273 TraceCheckUtils]: 37: Hoare triple {17033#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17040#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,487 INFO L273 TraceCheckUtils]: 38: Hoare triple {17040#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17040#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,488 INFO L273 TraceCheckUtils]: 39: Hoare triple {17040#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17047#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:59:17,489 INFO L273 TraceCheckUtils]: 40: Hoare triple {17047#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {17047#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:59:17,490 INFO L273 TraceCheckUtils]: 41: Hoare triple {17047#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {17054#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,490 INFO L273 TraceCheckUtils]: 42: Hoare triple {17054#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17054#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,491 INFO L273 TraceCheckUtils]: 43: Hoare triple {17054#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17061#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,492 INFO L273 TraceCheckUtils]: 44: Hoare triple {17061#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17061#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,492 INFO L273 TraceCheckUtils]: 45: Hoare triple {17061#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17068#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,493 INFO L273 TraceCheckUtils]: 46: Hoare triple {17068#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17068#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,494 INFO L273 TraceCheckUtils]: 47: Hoare triple {17068#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17075#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,494 INFO L273 TraceCheckUtils]: 48: Hoare triple {17075#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17075#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,495 INFO L273 TraceCheckUtils]: 49: Hoare triple {17075#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17082#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,496 INFO L273 TraceCheckUtils]: 50: Hoare triple {17082#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17082#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,496 INFO L273 TraceCheckUtils]: 51: Hoare triple {17082#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17089#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,497 INFO L273 TraceCheckUtils]: 52: Hoare triple {17089#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17089#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,498 INFO L273 TraceCheckUtils]: 53: Hoare triple {17089#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17096#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,498 INFO L273 TraceCheckUtils]: 54: Hoare triple {17096#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17096#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,499 INFO L273 TraceCheckUtils]: 55: Hoare triple {17096#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17103#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,500 INFO L273 TraceCheckUtils]: 56: Hoare triple {17103#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17103#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,501 INFO L273 TraceCheckUtils]: 57: Hoare triple {17103#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17110#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,501 INFO L273 TraceCheckUtils]: 58: Hoare triple {17110#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17110#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,502 INFO L273 TraceCheckUtils]: 59: Hoare triple {17110#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17117#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,503 INFO L273 TraceCheckUtils]: 60: Hoare triple {17117#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17117#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,503 INFO L273 TraceCheckUtils]: 61: Hoare triple {17117#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17124#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,504 INFO L273 TraceCheckUtils]: 62: Hoare triple {17124#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17124#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,505 INFO L273 TraceCheckUtils]: 63: Hoare triple {17124#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17131#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,506 INFO L273 TraceCheckUtils]: 64: Hoare triple {17131#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17131#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,506 INFO L273 TraceCheckUtils]: 65: Hoare triple {17131#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17138#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,507 INFO L273 TraceCheckUtils]: 66: Hoare triple {17138#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17138#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,508 INFO L273 TraceCheckUtils]: 67: Hoare triple {17138#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17145#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,509 INFO L273 TraceCheckUtils]: 68: Hoare triple {17145#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17145#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:17,509 INFO L273 TraceCheckUtils]: 69: Hoare triple {17145#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17152#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 12:59:17,510 INFO L273 TraceCheckUtils]: 70: Hoare triple {17152#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {17156#(and (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 12:59:17,511 INFO L273 TraceCheckUtils]: 71: Hoare triple {17156#(and (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {16906#(and (<= 36 main_n) (<= main_i 144))} is VALID [2019-02-27 12:59:17,512 INFO L273 TraceCheckUtils]: 72: Hoare triple {16906#(and (<= 36 main_n) (<= main_i 144))} assume !(i <= n * 4); {16868#false} is VALID [2019-02-27 12:59:17,530 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 1260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:59:17,530 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:59:21,570 INFO L273 TraceCheckUtils]: 72: Hoare triple {17163#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {16868#false} is VALID [2019-02-27 12:59:21,571 INFO L273 TraceCheckUtils]: 71: Hoare triple {17167#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {17163#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:59:21,572 INFO L273 TraceCheckUtils]: 70: Hoare triple {17171#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {17167#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:59:21,573 INFO L273 TraceCheckUtils]: 69: Hoare triple {17175#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {17171#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:59:21,573 INFO L273 TraceCheckUtils]: 68: Hoare triple {17175#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {17175#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:59:21,574 INFO L273 TraceCheckUtils]: 67: Hoare triple {17182#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {17175#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:59:21,575 INFO L273 TraceCheckUtils]: 66: Hoare triple {17182#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {17182#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:59:21,576 INFO L273 TraceCheckUtils]: 65: Hoare triple {17189#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {17182#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:59:21,577 INFO L273 TraceCheckUtils]: 64: Hoare triple {17189#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {17189#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:59:21,578 INFO L273 TraceCheckUtils]: 63: Hoare triple {17196#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {17189#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:59:21,578 INFO L273 TraceCheckUtils]: 62: Hoare triple {17196#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {17196#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:59:21,579 INFO L273 TraceCheckUtils]: 61: Hoare triple {17203#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17196#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:59:21,580 INFO L273 TraceCheckUtils]: 60: Hoare triple {17203#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {17203#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:59:21,581 INFO L273 TraceCheckUtils]: 59: Hoare triple {17210#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {17203#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:59:21,582 INFO L273 TraceCheckUtils]: 58: Hoare triple {17210#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {17210#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:59:21,583 INFO L273 TraceCheckUtils]: 57: Hoare triple {17217#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17210#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:59:21,583 INFO L273 TraceCheckUtils]: 56: Hoare triple {17217#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {17217#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:59:21,584 INFO L273 TraceCheckUtils]: 55: Hoare triple {17224#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17217#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:59:21,585 INFO L273 TraceCheckUtils]: 54: Hoare triple {17224#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {17224#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:59:21,586 INFO L273 TraceCheckUtils]: 53: Hoare triple {17231#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17224#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:59:21,587 INFO L273 TraceCheckUtils]: 52: Hoare triple {17231#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {17231#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:59:21,588 INFO L273 TraceCheckUtils]: 51: Hoare triple {17238#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {17231#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:59:21,588 INFO L273 TraceCheckUtils]: 50: Hoare triple {17238#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {17238#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:59:21,589 INFO L273 TraceCheckUtils]: 49: Hoare triple {17245#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17238#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:59:21,590 INFO L273 TraceCheckUtils]: 48: Hoare triple {17245#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {17245#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:59:21,591 INFO L273 TraceCheckUtils]: 47: Hoare triple {17252#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17245#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:59:21,591 INFO L273 TraceCheckUtils]: 46: Hoare triple {17252#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {17252#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:59:21,592 INFO L273 TraceCheckUtils]: 45: Hoare triple {17259#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {17252#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:59:21,593 INFO L273 TraceCheckUtils]: 44: Hoare triple {17259#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {17259#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:59:21,594 INFO L273 TraceCheckUtils]: 43: Hoare triple {17266#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17259#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:59:21,595 INFO L273 TraceCheckUtils]: 42: Hoare triple {17266#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {17266#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:59:21,596 INFO L273 TraceCheckUtils]: 41: Hoare triple {17273#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {17266#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:59:21,596 INFO L273 TraceCheckUtils]: 40: Hoare triple {17273#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {17273#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:59:21,597 INFO L273 TraceCheckUtils]: 39: Hoare triple {17280#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {17273#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:59:21,598 INFO L273 TraceCheckUtils]: 38: Hoare triple {17280#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {17280#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:59:21,599 INFO L273 TraceCheckUtils]: 37: Hoare triple {17287#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {17280#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:59:21,599 INFO L273 TraceCheckUtils]: 36: Hoare triple {17287#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {17287#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:59:21,600 INFO L273 TraceCheckUtils]: 35: Hoare triple {17294#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {17287#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:59:21,601 INFO L273 TraceCheckUtils]: 34: Hoare triple {17294#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {17294#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:59:21,602 INFO L273 TraceCheckUtils]: 33: Hoare triple {17301#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {17294#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:59:21,602 INFO L273 TraceCheckUtils]: 32: Hoare triple {17301#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {17301#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:59:21,604 INFO L273 TraceCheckUtils]: 31: Hoare triple {17308#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {17301#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:59:21,604 INFO L273 TraceCheckUtils]: 30: Hoare triple {17308#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {17308#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 12:59:21,605 INFO L273 TraceCheckUtils]: 29: Hoare triple {17315#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17308#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 12:59:21,606 INFO L273 TraceCheckUtils]: 28: Hoare triple {17315#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {17315#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 12:59:21,607 INFO L273 TraceCheckUtils]: 27: Hoare triple {17322#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17315#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 12:59:21,607 INFO L273 TraceCheckUtils]: 26: Hoare triple {17322#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {17322#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 12:59:21,609 INFO L273 TraceCheckUtils]: 25: Hoare triple {17329#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17322#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 12:59:21,609 INFO L273 TraceCheckUtils]: 24: Hoare triple {17329#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {17329#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 12:59:21,610 INFO L273 TraceCheckUtils]: 23: Hoare triple {17336#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {17329#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 12:59:21,611 INFO L273 TraceCheckUtils]: 22: Hoare triple {17336#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {17336#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 12:59:21,612 INFO L273 TraceCheckUtils]: 21: Hoare triple {17343#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17336#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 12:59:21,612 INFO L273 TraceCheckUtils]: 20: Hoare triple {17343#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {17343#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 12:59:21,613 INFO L273 TraceCheckUtils]: 19: Hoare triple {17350#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {17343#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 12:59:21,614 INFO L273 TraceCheckUtils]: 18: Hoare triple {17350#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {17350#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 12:59:21,615 INFO L273 TraceCheckUtils]: 17: Hoare triple {17357#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {17350#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 12:59:21,616 INFO L273 TraceCheckUtils]: 16: Hoare triple {17357#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {17357#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 12:59:21,617 INFO L273 TraceCheckUtils]: 15: Hoare triple {17364#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {17357#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 12:59:21,617 INFO L273 TraceCheckUtils]: 14: Hoare triple {17364#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {17364#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 12:59:21,618 INFO L273 TraceCheckUtils]: 13: Hoare triple {17371#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17364#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 12:59:21,619 INFO L273 TraceCheckUtils]: 12: Hoare triple {17371#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {17371#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 12:59:21,620 INFO L273 TraceCheckUtils]: 11: Hoare triple {17378#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17371#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 12:59:21,621 INFO L273 TraceCheckUtils]: 10: Hoare triple {17378#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {17378#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 12:59:21,622 INFO L273 TraceCheckUtils]: 9: Hoare triple {17385#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {17378#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 12:59:21,622 INFO L273 TraceCheckUtils]: 8: Hoare triple {17385#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {17385#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 12:59:21,623 INFO L273 TraceCheckUtils]: 7: Hoare triple {17392#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17385#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 12:59:21,624 INFO L273 TraceCheckUtils]: 6: Hoare triple {17392#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {17392#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 12:59:21,625 INFO L273 TraceCheckUtils]: 5: Hoare triple {17399#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {17392#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 12:59:21,626 INFO L273 TraceCheckUtils]: 4: Hoare triple {17399#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {17399#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 12:59:21,627 INFO L273 TraceCheckUtils]: 3: Hoare triple {17406#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {17399#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 12:59:21,627 INFO L273 TraceCheckUtils]: 2: Hoare triple {17406#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {17406#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 12:59:21,628 INFO L273 TraceCheckUtils]: 1: Hoare triple {17413#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {17406#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 12:59:21,629 INFO L273 TraceCheckUtils]: 0: Hoare triple {16867#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {17413#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 12:59:21,650 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 1260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:59:21,668 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:59:21,668 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38, 38] total 113 [2019-02-27 12:59:21,668 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:59:21,669 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 73 [2019-02-27 12:59:21,669 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:59:21,669 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 77 states. [2019-02-27 12:59:21,844 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 145 edges. 145 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:59:21,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 77 states [2019-02-27 12:59:21,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2019-02-27 12:59:21,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1642, Invalid=11468, Unknown=0, NotChecked=0, Total=13110 [2019-02-27 12:59:21,846 INFO L87 Difference]: Start difference. First operand 74 states and 74 transitions. Second operand 77 states. [2019-02-27 12:59:32,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:59:32,095 INFO L93 Difference]: Finished difference Result 78 states and 78 transitions. [2019-02-27 12:59:32,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-02-27 12:59:32,095 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 73 [2019-02-27 12:59:32,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:59:32,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-02-27 12:59:32,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 78 transitions. [2019-02-27 12:59:32,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-02-27 12:59:32,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 78 transitions. [2019-02-27 12:59:32,097 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 40 states and 78 transitions. [2019-02-27 12:59:32,180 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 78 edges. 78 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:59:32,182 INFO L225 Difference]: With dead ends: 78 [2019-02-27 12:59:32,182 INFO L226 Difference]: Without dead ends: 77 [2019-02-27 12:59:32,183 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2960 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=1642, Invalid=11468, Unknown=0, NotChecked=0, Total=13110 [2019-02-27 12:59:32,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2019-02-27 12:59:32,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76. [2019-02-27 12:59:32,251 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:59:32,251 INFO L82 GeneralOperation]: Start isEquivalent. First operand 77 states. Second operand 76 states. [2019-02-27 12:59:32,251 INFO L74 IsIncluded]: Start isIncluded. First operand 77 states. Second operand 76 states. [2019-02-27 12:59:32,251 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 76 states. [2019-02-27 12:59:32,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:59:32,252 INFO L93 Difference]: Finished difference Result 77 states and 77 transitions. [2019-02-27 12:59:32,252 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 77 transitions. [2019-02-27 12:59:32,253 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:59:32,253 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:59:32,253 INFO L74 IsIncluded]: Start isIncluded. First operand 76 states. Second operand 77 states. [2019-02-27 12:59:32,253 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 77 states. [2019-02-27 12:59:32,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:59:32,254 INFO L93 Difference]: Finished difference Result 77 states and 77 transitions. [2019-02-27 12:59:32,254 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 77 transitions. [2019-02-27 12:59:32,254 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:59:32,254 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:59:32,254 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:59:32,254 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:59:32,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-02-27 12:59:32,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 76 transitions. [2019-02-27 12:59:32,255 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 76 transitions. Word has length 73 [2019-02-27 12:59:32,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:59:32,255 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 76 transitions. [2019-02-27 12:59:32,255 INFO L481 AbstractCegarLoop]: Interpolant automaton has 77 states. [2019-02-27 12:59:32,255 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 76 transitions. [2019-02-27 12:59:32,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-02-27 12:59:32,256 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:59:32,256 INFO L402 BasicCegarLoop]: trace histogram [37, 36, 1, 1] [2019-02-27 12:59:32,256 INFO L423 AbstractCegarLoop]: === Iteration 37 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:59:32,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:59:32,256 INFO L82 PathProgramCache]: Analyzing trace with hash 286704424, now seen corresponding path program 36 times [2019-02-27 12:59:32,256 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:59:32,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:59:32,257 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 12:59:32,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:59:32,257 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:59:32,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:59:34,408 INFO L273 TraceCheckUtils]: 0: Hoare triple {17799#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {17801#(and (or (<= main_i 0) (<= main_n 36)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-02-27 12:59:34,410 INFO L273 TraceCheckUtils]: 1: Hoare triple {17801#(and (or (<= main_i 0) (<= main_n 36)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17802#(and (or (< 36 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 36)))} is VALID [2019-02-27 12:59:34,411 INFO L273 TraceCheckUtils]: 2: Hoare triple {17802#(and (or (< 36 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 36)))} assume i <= n * 4; {17802#(and (or (< 36 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 36)))} is VALID [2019-02-27 12:59:34,412 INFO L273 TraceCheckUtils]: 3: Hoare triple {17802#(and (or (< 36 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17803#(and (or (<= main_i 8) (<= main_n 36)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-02-27 12:59:34,413 INFO L273 TraceCheckUtils]: 4: Hoare triple {17803#(and (or (<= main_i 8) (<= main_n 36)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17803#(and (or (<= main_i 8) (<= main_n 36)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-02-27 12:59:34,414 INFO L273 TraceCheckUtils]: 5: Hoare triple {17803#(and (or (<= main_i 8) (<= main_n 36)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17804#(and (or (<= main_n 36) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-02-27 12:59:34,415 INFO L273 TraceCheckUtils]: 6: Hoare triple {17804#(and (or (<= main_n 36) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17804#(and (or (<= main_n 36) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-02-27 12:59:34,416 INFO L273 TraceCheckUtils]: 7: Hoare triple {17804#(and (or (<= main_n 36) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17805#(and (or (<= main_i 16) (<= main_n 36)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-02-27 12:59:34,417 INFO L273 TraceCheckUtils]: 8: Hoare triple {17805#(and (or (<= main_i 16) (<= main_n 36)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17805#(and (or (<= main_i 16) (<= main_n 36)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-02-27 12:59:34,418 INFO L273 TraceCheckUtils]: 9: Hoare triple {17805#(and (or (<= main_i 16) (<= main_n 36)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17806#(and (or (< 36 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 36)))} is VALID [2019-02-27 12:59:34,419 INFO L273 TraceCheckUtils]: 10: Hoare triple {17806#(and (or (< 36 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 36)))} assume i <= n * 4; {17806#(and (or (< 36 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 36)))} is VALID [2019-02-27 12:59:34,420 INFO L273 TraceCheckUtils]: 11: Hoare triple {17806#(and (or (< 36 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17807#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 24) (<= main_n 36)))} is VALID [2019-02-27 12:59:34,421 INFO L273 TraceCheckUtils]: 12: Hoare triple {17807#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 24) (<= main_n 36)))} assume i <= n * 4; {17807#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 24) (<= main_n 36)))} is VALID [2019-02-27 12:59:34,422 INFO L273 TraceCheckUtils]: 13: Hoare triple {17807#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 24) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17808#(and (or (<= main_n 36) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-02-27 12:59:34,423 INFO L273 TraceCheckUtils]: 14: Hoare triple {17808#(and (or (<= main_n 36) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17808#(and (or (<= main_n 36) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-02-27 12:59:34,424 INFO L273 TraceCheckUtils]: 15: Hoare triple {17808#(and (or (<= main_n 36) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17809#(and (or (<= main_i 32) (<= main_n 36)) (or (< 36 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:34,425 INFO L273 TraceCheckUtils]: 16: Hoare triple {17809#(and (or (<= main_i 32) (<= main_n 36)) (or (< 36 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {17809#(and (or (<= main_i 32) (<= main_n 36)) (or (< 36 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:34,426 INFO L273 TraceCheckUtils]: 17: Hoare triple {17809#(and (or (<= main_i 32) (<= main_n 36)) (or (< 36 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {17810#(and (or (<= main_i 36) (<= main_n 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 36 main_n)))} is VALID [2019-02-27 12:59:34,427 INFO L273 TraceCheckUtils]: 18: Hoare triple {17810#(and (or (<= main_i 36) (<= main_n 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 36 main_n)))} assume i <= n * 4; {17810#(and (or (<= main_i 36) (<= main_n 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 36 main_n)))} is VALID [2019-02-27 12:59:34,428 INFO L273 TraceCheckUtils]: 19: Hoare triple {17810#(and (or (<= main_i 36) (<= main_n 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17811#(and (or (<= main_i 40) (<= main_n 36)) (or (< 36 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:34,429 INFO L273 TraceCheckUtils]: 20: Hoare triple {17811#(and (or (<= main_i 40) (<= main_n 36)) (or (< 36 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {17811#(and (or (<= main_i 40) (<= main_n 36)) (or (< 36 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:34,430 INFO L273 TraceCheckUtils]: 21: Hoare triple {17811#(and (or (<= main_i 40) (<= main_n 36)) (or (< 36 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {17812#(and (or (<= main_n 36) (<= main_i 44)) (or (< 36 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:34,431 INFO L273 TraceCheckUtils]: 22: Hoare triple {17812#(and (or (<= main_n 36) (<= main_i 44)) (or (< 36 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {17812#(and (or (<= main_n 36) (<= main_i 44)) (or (< 36 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:34,432 INFO L273 TraceCheckUtils]: 23: Hoare triple {17812#(and (or (<= main_n 36) (<= main_i 44)) (or (< 36 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {17813#(and (or (<= main_i 48) (<= main_n 36)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-02-27 12:59:34,433 INFO L273 TraceCheckUtils]: 24: Hoare triple {17813#(and (or (<= main_i 48) (<= main_n 36)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17813#(and (or (<= main_i 48) (<= main_n 36)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-02-27 12:59:34,434 INFO L273 TraceCheckUtils]: 25: Hoare triple {17813#(and (or (<= main_i 48) (<= main_n 36)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17814#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 52) (<= main_n 36)))} is VALID [2019-02-27 12:59:34,435 INFO L273 TraceCheckUtils]: 26: Hoare triple {17814#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 52) (<= main_n 36)))} assume i <= n * 4; {17814#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 52) (<= main_n 36)))} is VALID [2019-02-27 12:59:34,436 INFO L273 TraceCheckUtils]: 27: Hoare triple {17814#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 52) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17815#(and (or (< 36 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 36)))} is VALID [2019-02-27 12:59:34,437 INFO L273 TraceCheckUtils]: 28: Hoare triple {17815#(and (or (< 36 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 36)))} assume i <= n * 4; {17815#(and (or (< 36 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 36)))} is VALID [2019-02-27 12:59:34,438 INFO L273 TraceCheckUtils]: 29: Hoare triple {17815#(and (or (< 36 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17816#(and (or (<= main_i 60) (<= main_n 36)) (or (< 36 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:34,439 INFO L273 TraceCheckUtils]: 30: Hoare triple {17816#(and (or (<= main_i 60) (<= main_n 36)) (or (< 36 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {17816#(and (or (<= main_i 60) (<= main_n 36)) (or (< 36 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:34,440 INFO L273 TraceCheckUtils]: 31: Hoare triple {17816#(and (or (<= main_i 60) (<= main_n 36)) (or (< 36 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {17817#(and (or (<= main_i 64) (<= main_n 36)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-02-27 12:59:34,441 INFO L273 TraceCheckUtils]: 32: Hoare triple {17817#(and (or (<= main_i 64) (<= main_n 36)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17817#(and (or (<= main_i 64) (<= main_n 36)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-02-27 12:59:34,442 INFO L273 TraceCheckUtils]: 33: Hoare triple {17817#(and (or (<= main_i 64) (<= main_n 36)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17818#(and (or (<= main_n 36) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-02-27 12:59:34,443 INFO L273 TraceCheckUtils]: 34: Hoare triple {17818#(and (or (<= main_n 36) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17818#(and (or (<= main_n 36) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-02-27 12:59:34,444 INFO L273 TraceCheckUtils]: 35: Hoare triple {17818#(and (or (<= main_n 36) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17819#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 72) (<= main_n 36)))} is VALID [2019-02-27 12:59:34,446 INFO L273 TraceCheckUtils]: 36: Hoare triple {17819#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 72) (<= main_n 36)))} assume i <= n * 4; {17819#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 72) (<= main_n 36)))} is VALID [2019-02-27 12:59:34,448 INFO L273 TraceCheckUtils]: 37: Hoare triple {17819#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 72) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17820#(and (or (<= main_i 76) (<= main_n 36)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-02-27 12:59:34,449 INFO L273 TraceCheckUtils]: 38: Hoare triple {17820#(and (or (<= main_i 76) (<= main_n 36)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17820#(and (or (<= main_i 76) (<= main_n 36)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-02-27 12:59:34,450 INFO L273 TraceCheckUtils]: 39: Hoare triple {17820#(and (or (<= main_i 76) (<= main_n 36)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17821#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 80) (<= main_n 36)))} is VALID [2019-02-27 12:59:34,450 INFO L273 TraceCheckUtils]: 40: Hoare triple {17821#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 80) (<= main_n 36)))} assume i <= n * 4; {17821#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 80) (<= main_n 36)))} is VALID [2019-02-27 12:59:34,452 INFO L273 TraceCheckUtils]: 41: Hoare triple {17821#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 80) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17822#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 36 main_n)) (or (<= main_i 84) (<= main_n 36)))} is VALID [2019-02-27 12:59:34,453 INFO L273 TraceCheckUtils]: 42: Hoare triple {17822#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 36 main_n)) (or (<= main_i 84) (<= main_n 36)))} assume i <= n * 4; {17822#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 36 main_n)) (or (<= main_i 84) (<= main_n 36)))} is VALID [2019-02-27 12:59:34,454 INFO L273 TraceCheckUtils]: 43: Hoare triple {17822#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 36 main_n)) (or (<= main_i 84) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17823#(and (or (<= main_i 88) (<= main_n 36)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-02-27 12:59:34,454 INFO L273 TraceCheckUtils]: 44: Hoare triple {17823#(and (or (<= main_i 88) (<= main_n 36)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17823#(and (or (<= main_i 88) (<= main_n 36)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-02-27 12:59:34,456 INFO L273 TraceCheckUtils]: 45: Hoare triple {17823#(and (or (<= main_i 88) (<= main_n 36)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17824#(and (or (<= main_i 92) (<= main_n 36)) (or (< 36 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:34,456 INFO L273 TraceCheckUtils]: 46: Hoare triple {17824#(and (or (<= main_i 92) (<= main_n 36)) (or (< 36 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {17824#(and (or (<= main_i 92) (<= main_n 36)) (or (< 36 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:34,458 INFO L273 TraceCheckUtils]: 47: Hoare triple {17824#(and (or (<= main_i 92) (<= main_n 36)) (or (< 36 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {17825#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 96) (<= main_n 36)))} is VALID [2019-02-27 12:59:34,459 INFO L273 TraceCheckUtils]: 48: Hoare triple {17825#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 96) (<= main_n 36)))} assume i <= n * 4; {17825#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 96) (<= main_n 36)))} is VALID [2019-02-27 12:59:34,460 INFO L273 TraceCheckUtils]: 49: Hoare triple {17825#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 96) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17826#(and (or (<= main_i 100) (<= main_n 36)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-02-27 12:59:34,462 INFO L273 TraceCheckUtils]: 50: Hoare triple {17826#(and (or (<= main_i 100) (<= main_n 36)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17826#(and (or (<= main_i 100) (<= main_n 36)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-02-27 12:59:34,464 INFO L273 TraceCheckUtils]: 51: Hoare triple {17826#(and (or (<= main_i 100) (<= main_n 36)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17827#(and (or (<= main_i 104) (<= main_n 36)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-02-27 12:59:34,464 INFO L273 TraceCheckUtils]: 52: Hoare triple {17827#(and (or (<= main_i 104) (<= main_n 36)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17827#(and (or (<= main_i 104) (<= main_n 36)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-02-27 12:59:34,466 INFO L273 TraceCheckUtils]: 53: Hoare triple {17827#(and (or (<= main_i 104) (<= main_n 36)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17828#(and (or (<= main_i 108) (<= main_n 36)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-02-27 12:59:34,466 INFO L273 TraceCheckUtils]: 54: Hoare triple {17828#(and (or (<= main_i 108) (<= main_n 36)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17828#(and (or (<= main_i 108) (<= main_n 36)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2019-02-27 12:59:34,468 INFO L273 TraceCheckUtils]: 55: Hoare triple {17828#(and (or (<= main_i 108) (<= main_n 36)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17829#(and (or (<= main_n 36) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 36 main_n)))} is VALID [2019-02-27 12:59:34,468 INFO L273 TraceCheckUtils]: 56: Hoare triple {17829#(and (or (<= main_n 36) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 36 main_n)))} assume i <= n * 4; {17829#(and (or (<= main_n 36) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 36 main_n)))} is VALID [2019-02-27 12:59:34,470 INFO L273 TraceCheckUtils]: 57: Hoare triple {17829#(and (or (<= main_n 36) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17830#(and (or (< 36 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 36)))} is VALID [2019-02-27 12:59:34,470 INFO L273 TraceCheckUtils]: 58: Hoare triple {17830#(and (or (< 36 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 36)))} assume i <= n * 4; {17830#(and (or (< 36 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 36)))} is VALID [2019-02-27 12:59:34,471 INFO L273 TraceCheckUtils]: 59: Hoare triple {17830#(and (or (< 36 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17831#(and (or (<= main_i 120) (<= main_n 36)) (or (< 36 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:34,471 INFO L273 TraceCheckUtils]: 60: Hoare triple {17831#(and (or (<= main_i 120) (<= main_n 36)) (or (< 36 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {17831#(and (or (<= main_i 120) (<= main_n 36)) (or (< 36 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:34,473 INFO L273 TraceCheckUtils]: 61: Hoare triple {17831#(and (or (<= main_i 120) (<= main_n 36)) (or (< 36 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {17832#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 124) (<= main_n 36)))} is VALID [2019-02-27 12:59:34,473 INFO L273 TraceCheckUtils]: 62: Hoare triple {17832#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 124) (<= main_n 36)))} assume i <= n * 4; {17832#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 124) (<= main_n 36)))} is VALID [2019-02-27 12:59:34,475 INFO L273 TraceCheckUtils]: 63: Hoare triple {17832#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 124) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17833#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 36 main_n)) (or (<= main_i 128) (<= main_n 36)))} is VALID [2019-02-27 12:59:34,476 INFO L273 TraceCheckUtils]: 64: Hoare triple {17833#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 36 main_n)) (or (<= main_i 128) (<= main_n 36)))} assume i <= n * 4; {17833#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 36 main_n)) (or (<= main_i 128) (<= main_n 36)))} is VALID [2019-02-27 12:59:34,477 INFO L273 TraceCheckUtils]: 65: Hoare triple {17833#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 36 main_n)) (or (<= main_i 128) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17834#(and (or (< 36 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 36)))} is VALID [2019-02-27 12:59:34,477 INFO L273 TraceCheckUtils]: 66: Hoare triple {17834#(and (or (< 36 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 36)))} assume i <= n * 4; {17834#(and (or (< 36 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 36)))} is VALID [2019-02-27 12:59:34,479 INFO L273 TraceCheckUtils]: 67: Hoare triple {17834#(and (or (< 36 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17835#(and (or (< 36 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 36)))} is VALID [2019-02-27 12:59:34,480 INFO L273 TraceCheckUtils]: 68: Hoare triple {17835#(and (or (< 36 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 36)))} assume i <= n * 4; {17835#(and (or (< 36 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 36)))} is VALID [2019-02-27 12:59:34,481 INFO L273 TraceCheckUtils]: 69: Hoare triple {17835#(and (or (< 36 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17836#(and (or (< 36 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 36) (<= main_i 140)))} is VALID [2019-02-27 12:59:34,481 INFO L273 TraceCheckUtils]: 70: Hoare triple {17836#(and (or (< 36 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 36) (<= main_i 140)))} assume i <= n * 4; {17836#(and (or (< 36 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 36) (<= main_i 140)))} is VALID [2019-02-27 12:59:34,483 INFO L273 TraceCheckUtils]: 71: Hoare triple {17836#(and (or (< 36 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 36) (<= main_i 140)))} assume a[i] != 23;i := i + 4; {17837#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 36 main_n)) (or (<= main_n 36) (<= main_i 144)))} is VALID [2019-02-27 12:59:34,484 INFO L273 TraceCheckUtils]: 72: Hoare triple {17837#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 36 main_n)) (or (<= main_n 36) (<= main_i 144)))} assume i <= n * 4; {17838#(and (or (< 36 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 144))} is VALID [2019-02-27 12:59:34,485 INFO L273 TraceCheckUtils]: 73: Hoare triple {17838#(and (or (< 36 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 144))} assume a[i] != 23;i := i + 4; {17839#(and (< 36 main_n) (<= main_i 148))} is VALID [2019-02-27 12:59:34,485 INFO L273 TraceCheckUtils]: 74: Hoare triple {17839#(and (< 36 main_n) (<= main_i 148))} assume !(i <= n * 4); {17800#false} is VALID [2019-02-27 12:59:34,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 0 proven. 1332 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:59:34,512 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:59:34,512 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:59:34,512 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:59:34,512 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:59:34,512 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:59:34,512 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:59:34,521 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-27 12:59:34,522 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-27 12:59:34,545 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-27 12:59:34,545 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 12:59:34,547 WARN L254 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 79 conjunts are in the unsatisfiable core [2019-02-27 12:59:34,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:59:34,558 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:59:34,575 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:59:34,576 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:59:34,586 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:59:34,586 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:59:34,588 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:59:34,588 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_40]. (and (= (store v_main_a_40 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-27 12:59:34,588 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:59:36,897 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:59:36,899 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:59:36,905 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:59:36,906 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:59:36,908 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:59:36,909 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= (select main_a 144) 23)) (<= 144 .cse0) (= 23 (select main_a .cse0)) (<= main_i 148))) [2019-02-27 12:59:36,909 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 144 .cse0)) (<= 144 .cse0) (<= main_i 148))) [2019-02-27 12:59:36,959 INFO L273 TraceCheckUtils]: 0: Hoare triple {17799#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {17843#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,960 INFO L273 TraceCheckUtils]: 1: Hoare triple {17843#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17847#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:59:36,960 INFO L273 TraceCheckUtils]: 2: Hoare triple {17847#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {17847#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:59:36,960 INFO L273 TraceCheckUtils]: 3: Hoare triple {17847#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {17854#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,961 INFO L273 TraceCheckUtils]: 4: Hoare triple {17854#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17854#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,961 INFO L273 TraceCheckUtils]: 5: Hoare triple {17854#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17861#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:59:36,962 INFO L273 TraceCheckUtils]: 6: Hoare triple {17861#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {17861#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:59:36,963 INFO L273 TraceCheckUtils]: 7: Hoare triple {17861#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {17868#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,963 INFO L273 TraceCheckUtils]: 8: Hoare triple {17868#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17868#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,964 INFO L273 TraceCheckUtils]: 9: Hoare triple {17868#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17875#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,965 INFO L273 TraceCheckUtils]: 10: Hoare triple {17875#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17875#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,966 INFO L273 TraceCheckUtils]: 11: Hoare triple {17875#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17882#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,966 INFO L273 TraceCheckUtils]: 12: Hoare triple {17882#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17882#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,967 INFO L273 TraceCheckUtils]: 13: Hoare triple {17882#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17889#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,968 INFO L273 TraceCheckUtils]: 14: Hoare triple {17889#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17889#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,968 INFO L273 TraceCheckUtils]: 15: Hoare triple {17889#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17896#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,969 INFO L273 TraceCheckUtils]: 16: Hoare triple {17896#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17896#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,970 INFO L273 TraceCheckUtils]: 17: Hoare triple {17896#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17903#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,970 INFO L273 TraceCheckUtils]: 18: Hoare triple {17903#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17903#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,971 INFO L273 TraceCheckUtils]: 19: Hoare triple {17903#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17910#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,972 INFO L273 TraceCheckUtils]: 20: Hoare triple {17910#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17910#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,973 INFO L273 TraceCheckUtils]: 21: Hoare triple {17910#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17917#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,973 INFO L273 TraceCheckUtils]: 22: Hoare triple {17917#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17917#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,974 INFO L273 TraceCheckUtils]: 23: Hoare triple {17917#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17924#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,975 INFO L273 TraceCheckUtils]: 24: Hoare triple {17924#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17924#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,976 INFO L273 TraceCheckUtils]: 25: Hoare triple {17924#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17931#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,976 INFO L273 TraceCheckUtils]: 26: Hoare triple {17931#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17931#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,977 INFO L273 TraceCheckUtils]: 27: Hoare triple {17931#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17938#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,978 INFO L273 TraceCheckUtils]: 28: Hoare triple {17938#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17938#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,978 INFO L273 TraceCheckUtils]: 29: Hoare triple {17938#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17945#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,979 INFO L273 TraceCheckUtils]: 30: Hoare triple {17945#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17945#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,980 INFO L273 TraceCheckUtils]: 31: Hoare triple {17945#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17952#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,980 INFO L273 TraceCheckUtils]: 32: Hoare triple {17952#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17952#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,981 INFO L273 TraceCheckUtils]: 33: Hoare triple {17952#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17959#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,982 INFO L273 TraceCheckUtils]: 34: Hoare triple {17959#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17959#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,983 INFO L273 TraceCheckUtils]: 35: Hoare triple {17959#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17966#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,983 INFO L273 TraceCheckUtils]: 36: Hoare triple {17966#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17966#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,984 INFO L273 TraceCheckUtils]: 37: Hoare triple {17966#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17973#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,985 INFO L273 TraceCheckUtils]: 38: Hoare triple {17973#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17973#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,985 INFO L273 TraceCheckUtils]: 39: Hoare triple {17973#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17980#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:59:36,986 INFO L273 TraceCheckUtils]: 40: Hoare triple {17980#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {17980#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:59:36,987 INFO L273 TraceCheckUtils]: 41: Hoare triple {17980#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {17987#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,988 INFO L273 TraceCheckUtils]: 42: Hoare triple {17987#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17987#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,988 INFO L273 TraceCheckUtils]: 43: Hoare triple {17987#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17994#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,989 INFO L273 TraceCheckUtils]: 44: Hoare triple {17994#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17994#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,990 INFO L273 TraceCheckUtils]: 45: Hoare triple {17994#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18001#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,991 INFO L273 TraceCheckUtils]: 46: Hoare triple {18001#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18001#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,991 INFO L273 TraceCheckUtils]: 47: Hoare triple {18001#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18008#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,992 INFO L273 TraceCheckUtils]: 48: Hoare triple {18008#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18008#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,993 INFO L273 TraceCheckUtils]: 49: Hoare triple {18008#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18015#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,993 INFO L273 TraceCheckUtils]: 50: Hoare triple {18015#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18015#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,994 INFO L273 TraceCheckUtils]: 51: Hoare triple {18015#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18022#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,995 INFO L273 TraceCheckUtils]: 52: Hoare triple {18022#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18022#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,995 INFO L273 TraceCheckUtils]: 53: Hoare triple {18022#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18029#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,996 INFO L273 TraceCheckUtils]: 54: Hoare triple {18029#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18029#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,997 INFO L273 TraceCheckUtils]: 55: Hoare triple {18029#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18036#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,998 INFO L273 TraceCheckUtils]: 56: Hoare triple {18036#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18036#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,998 INFO L273 TraceCheckUtils]: 57: Hoare triple {18036#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18043#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:36,999 INFO L273 TraceCheckUtils]: 58: Hoare triple {18043#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18043#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:37,000 INFO L273 TraceCheckUtils]: 59: Hoare triple {18043#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18050#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:37,000 INFO L273 TraceCheckUtils]: 60: Hoare triple {18050#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18050#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:37,001 INFO L273 TraceCheckUtils]: 61: Hoare triple {18050#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18057#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:37,002 INFO L273 TraceCheckUtils]: 62: Hoare triple {18057#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18057#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:37,003 INFO L273 TraceCheckUtils]: 63: Hoare triple {18057#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18064#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:37,003 INFO L273 TraceCheckUtils]: 64: Hoare triple {18064#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18064#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:37,004 INFO L273 TraceCheckUtils]: 65: Hoare triple {18064#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18071#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:37,005 INFO L273 TraceCheckUtils]: 66: Hoare triple {18071#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18071#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:37,005 INFO L273 TraceCheckUtils]: 67: Hoare triple {18071#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18078#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:37,006 INFO L273 TraceCheckUtils]: 68: Hoare triple {18078#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18078#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:37,007 INFO L273 TraceCheckUtils]: 69: Hoare triple {18078#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18085#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 12:59:37,008 INFO L273 TraceCheckUtils]: 70: Hoare triple {18085#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {18085#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 12:59:37,008 INFO L273 TraceCheckUtils]: 71: Hoare triple {18085#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {18092#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:37,009 INFO L273 TraceCheckUtils]: 72: Hoare triple {18092#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18096#(and (<= main_i (* 4 main_n)) (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:37,010 INFO L273 TraceCheckUtils]: 73: Hoare triple {18096#(and (<= main_i (* 4 main_n)) (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17839#(and (< 36 main_n) (<= main_i 148))} is VALID [2019-02-27 12:59:37,011 INFO L273 TraceCheckUtils]: 74: Hoare triple {17839#(and (< 36 main_n) (<= main_i 148))} assume !(i <= n * 4); {17800#false} is VALID [2019-02-27 12:59:37,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 0 proven. 1332 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:59:37,026 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 12:59:41,270 INFO L273 TraceCheckUtils]: 74: Hoare triple {18103#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {17800#false} is VALID [2019-02-27 12:59:41,271 INFO L273 TraceCheckUtils]: 73: Hoare triple {18107#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {18103#(<= main_i (* 4 main_n))} is VALID [2019-02-27 12:59:41,271 INFO L273 TraceCheckUtils]: 72: Hoare triple {18111#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {18107#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:59:41,272 INFO L273 TraceCheckUtils]: 71: Hoare triple {18115#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {18111#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 12:59:41,272 INFO L273 TraceCheckUtils]: 70: Hoare triple {18115#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {18115#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:59:41,273 INFO L273 TraceCheckUtils]: 69: Hoare triple {18122#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {18115#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 12:59:41,274 INFO L273 TraceCheckUtils]: 68: Hoare triple {18122#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {18122#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:59:41,275 INFO L273 TraceCheckUtils]: 67: Hoare triple {18129#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {18122#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 12:59:41,275 INFO L273 TraceCheckUtils]: 66: Hoare triple {18129#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {18129#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:59:41,276 INFO L273 TraceCheckUtils]: 65: Hoare triple {18136#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {18129#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 12:59:41,277 INFO L273 TraceCheckUtils]: 64: Hoare triple {18136#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {18136#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:59:41,278 INFO L273 TraceCheckUtils]: 63: Hoare triple {18143#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18136#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 12:59:41,278 INFO L273 TraceCheckUtils]: 62: Hoare triple {18143#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {18143#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:59:41,280 INFO L273 TraceCheckUtils]: 61: Hoare triple {18150#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {18143#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 12:59:41,280 INFO L273 TraceCheckUtils]: 60: Hoare triple {18150#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {18150#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:59:41,281 INFO L273 TraceCheckUtils]: 59: Hoare triple {18157#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18150#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 12:59:41,282 INFO L273 TraceCheckUtils]: 58: Hoare triple {18157#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {18157#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:59:41,283 INFO L273 TraceCheckUtils]: 57: Hoare triple {18164#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18157#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 12:59:41,283 INFO L273 TraceCheckUtils]: 56: Hoare triple {18164#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {18164#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:59:41,284 INFO L273 TraceCheckUtils]: 55: Hoare triple {18171#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18164#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 12:59:41,285 INFO L273 TraceCheckUtils]: 54: Hoare triple {18171#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {18171#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:59:41,286 INFO L273 TraceCheckUtils]: 53: Hoare triple {18178#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {18171#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 12:59:41,286 INFO L273 TraceCheckUtils]: 52: Hoare triple {18178#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {18178#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:59:41,287 INFO L273 TraceCheckUtils]: 51: Hoare triple {18185#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18178#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 12:59:41,288 INFO L273 TraceCheckUtils]: 50: Hoare triple {18185#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {18185#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:59:41,289 INFO L273 TraceCheckUtils]: 49: Hoare triple {18192#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18185#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 12:59:41,290 INFO L273 TraceCheckUtils]: 48: Hoare triple {18192#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {18192#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:59:41,291 INFO L273 TraceCheckUtils]: 47: Hoare triple {18199#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {18192#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 12:59:41,291 INFO L273 TraceCheckUtils]: 46: Hoare triple {18199#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {18199#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:59:41,292 INFO L273 TraceCheckUtils]: 45: Hoare triple {18206#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18199#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 12:59:41,293 INFO L273 TraceCheckUtils]: 44: Hoare triple {18206#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {18206#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:59:41,294 INFO L273 TraceCheckUtils]: 43: Hoare triple {18213#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {18206#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 12:59:41,294 INFO L273 TraceCheckUtils]: 42: Hoare triple {18213#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {18213#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:59:41,296 INFO L273 TraceCheckUtils]: 41: Hoare triple {18220#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {18213#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 12:59:41,296 INFO L273 TraceCheckUtils]: 40: Hoare triple {18220#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {18220#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:59:41,297 INFO L273 TraceCheckUtils]: 39: Hoare triple {18227#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {18220#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 12:59:41,298 INFO L273 TraceCheckUtils]: 38: Hoare triple {18227#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {18227#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:59:41,299 INFO L273 TraceCheckUtils]: 37: Hoare triple {18234#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {18227#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 12:59:41,299 INFO L273 TraceCheckUtils]: 36: Hoare triple {18234#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {18234#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:59:41,301 INFO L273 TraceCheckUtils]: 35: Hoare triple {18241#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {18234#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 12:59:41,301 INFO L273 TraceCheckUtils]: 34: Hoare triple {18241#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {18241#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:59:41,302 INFO L273 TraceCheckUtils]: 33: Hoare triple {18248#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {18241#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 12:59:41,303 INFO L273 TraceCheckUtils]: 32: Hoare triple {18248#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {18248#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 12:59:41,304 INFO L273 TraceCheckUtils]: 31: Hoare triple {18255#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18248#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 12:59:41,305 INFO L273 TraceCheckUtils]: 30: Hoare triple {18255#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {18255#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 12:59:41,306 INFO L273 TraceCheckUtils]: 29: Hoare triple {18262#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18255#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 12:59:41,306 INFO L273 TraceCheckUtils]: 28: Hoare triple {18262#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {18262#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 12:59:41,308 INFO L273 TraceCheckUtils]: 27: Hoare triple {18269#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18262#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 12:59:41,308 INFO L273 TraceCheckUtils]: 26: Hoare triple {18269#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {18269#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 12:59:41,309 INFO L273 TraceCheckUtils]: 25: Hoare triple {18276#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {18269#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 12:59:41,310 INFO L273 TraceCheckUtils]: 24: Hoare triple {18276#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {18276#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 12:59:41,311 INFO L273 TraceCheckUtils]: 23: Hoare triple {18283#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18276#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 12:59:41,312 INFO L273 TraceCheckUtils]: 22: Hoare triple {18283#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {18283#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 12:59:41,313 INFO L273 TraceCheckUtils]: 21: Hoare triple {18290#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {18283#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 12:59:41,313 INFO L273 TraceCheckUtils]: 20: Hoare triple {18290#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {18290#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 12:59:41,314 INFO L273 TraceCheckUtils]: 19: Hoare triple {18297#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {18290#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 12:59:41,315 INFO L273 TraceCheckUtils]: 18: Hoare triple {18297#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {18297#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 12:59:41,316 INFO L273 TraceCheckUtils]: 17: Hoare triple {18304#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {18297#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 12:59:41,317 INFO L273 TraceCheckUtils]: 16: Hoare triple {18304#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {18304#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 12:59:41,318 INFO L273 TraceCheckUtils]: 15: Hoare triple {18311#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18304#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 12:59:41,318 INFO L273 TraceCheckUtils]: 14: Hoare triple {18311#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {18311#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 12:59:41,319 INFO L273 TraceCheckUtils]: 13: Hoare triple {18318#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18311#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 12:59:41,320 INFO L273 TraceCheckUtils]: 12: Hoare triple {18318#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {18318#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 12:59:41,321 INFO L273 TraceCheckUtils]: 11: Hoare triple {18325#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {18318#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 12:59:41,321 INFO L273 TraceCheckUtils]: 10: Hoare triple {18325#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {18325#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 12:59:41,322 INFO L273 TraceCheckUtils]: 9: Hoare triple {18332#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18325#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 12:59:41,323 INFO L273 TraceCheckUtils]: 8: Hoare triple {18332#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {18332#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 12:59:41,324 INFO L273 TraceCheckUtils]: 7: Hoare triple {18339#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {18332#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 12:59:41,325 INFO L273 TraceCheckUtils]: 6: Hoare triple {18339#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {18339#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 12:59:41,326 INFO L273 TraceCheckUtils]: 5: Hoare triple {18346#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {18339#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 12:59:41,326 INFO L273 TraceCheckUtils]: 4: Hoare triple {18346#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {18346#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 12:59:41,327 INFO L273 TraceCheckUtils]: 3: Hoare triple {18353#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {18346#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 12:59:41,328 INFO L273 TraceCheckUtils]: 2: Hoare triple {18353#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {18353#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 12:59:41,329 INFO L273 TraceCheckUtils]: 1: Hoare triple {18360#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {18353#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 12:59:41,330 INFO L273 TraceCheckUtils]: 0: Hoare triple {17799#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {18360#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 12:59:41,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 0 proven. 1332 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:59:41,370 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 12:59:41,370 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39, 39] total 116 [2019-02-27 12:59:41,370 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 12:59:41,371 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 75 [2019-02-27 12:59:41,371 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 12:59:41,371 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 79 states. [2019-02-27 12:59:41,582 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 149 edges. 149 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:59:41,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 79 states [2019-02-27 12:59:41,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2019-02-27 12:59:41,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1724, Invalid=12082, Unknown=0, NotChecked=0, Total=13806 [2019-02-27 12:59:41,583 INFO L87 Difference]: Start difference. First operand 76 states and 76 transitions. Second operand 79 states. [2019-02-27 12:59:49,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:59:49,840 INFO L93 Difference]: Finished difference Result 80 states and 80 transitions. [2019-02-27 12:59:49,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2019-02-27 12:59:49,840 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 75 [2019-02-27 12:59:49,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 12:59:49,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-02-27 12:59:49,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 80 transitions. [2019-02-27 12:59:49,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-02-27 12:59:49,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 80 transitions. [2019-02-27 12:59:49,842 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 41 states and 80 transitions. [2019-02-27 12:59:49,950 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 80 edges. 80 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 12:59:49,952 INFO L225 Difference]: With dead ends: 80 [2019-02-27 12:59:49,952 INFO L226 Difference]: Without dead ends: 79 [2019-02-27 12:59:49,953 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3116 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=1724, Invalid=12082, Unknown=0, NotChecked=0, Total=13806 [2019-02-27 12:59:49,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2019-02-27 12:59:50,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2019-02-27 12:59:50,026 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 12:59:50,026 INFO L82 GeneralOperation]: Start isEquivalent. First operand 79 states. Second operand 78 states. [2019-02-27 12:59:50,026 INFO L74 IsIncluded]: Start isIncluded. First operand 79 states. Second operand 78 states. [2019-02-27 12:59:50,026 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 78 states. [2019-02-27 12:59:50,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:59:50,028 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2019-02-27 12:59:50,028 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 79 transitions. [2019-02-27 12:59:50,028 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:59:50,028 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:59:50,029 INFO L74 IsIncluded]: Start isIncluded. First operand 78 states. Second operand 79 states. [2019-02-27 12:59:50,029 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 79 states. [2019-02-27 12:59:50,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 12:59:50,030 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2019-02-27 12:59:50,030 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 79 transitions. [2019-02-27 12:59:50,030 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 12:59:50,031 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 12:59:50,031 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 12:59:50,031 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 12:59:50,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-02-27 12:59:50,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 78 transitions. [2019-02-27 12:59:50,032 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 78 transitions. Word has length 75 [2019-02-27 12:59:50,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 12:59:50,032 INFO L480 AbstractCegarLoop]: Abstraction has 78 states and 78 transitions. [2019-02-27 12:59:50,032 INFO L481 AbstractCegarLoop]: Interpolant automaton has 79 states. [2019-02-27 12:59:50,032 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 78 transitions. [2019-02-27 12:59:50,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-02-27 12:59:50,033 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 12:59:50,033 INFO L402 BasicCegarLoop]: trace histogram [38, 37, 1, 1] [2019-02-27 12:59:50,033 INFO L423 AbstractCegarLoop]: === Iteration 38 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 12:59:50,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 12:59:50,033 INFO L82 PathProgramCache]: Analyzing trace with hash 645045610, now seen corresponding path program 37 times [2019-02-27 12:59:50,034 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 12:59:50,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:59:50,034 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 12:59:50,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 12:59:50,034 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 12:59:50,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:59:50,486 WARN L181 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-02-27 12:59:50,953 WARN L181 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-02-27 12:59:51,477 WARN L181 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-02-27 12:59:53,298 INFO L273 TraceCheckUtils]: 0: Hoare triple {18756#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {18758#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_i 0) (<= main_n 37)))} is VALID [2019-02-27 12:59:53,300 INFO L273 TraceCheckUtils]: 1: Hoare triple {18758#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_i 0) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18759#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 37)))} is VALID [2019-02-27 12:59:53,300 INFO L273 TraceCheckUtils]: 2: Hoare triple {18759#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 37)))} assume i <= n * 4; {18759#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 37)))} is VALID [2019-02-27 12:59:53,301 INFO L273 TraceCheckUtils]: 3: Hoare triple {18759#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18760#(and (or (<= main_i 8) (<= main_n 37)) (or (< 37 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:53,302 INFO L273 TraceCheckUtils]: 4: Hoare triple {18760#(and (or (<= main_i 8) (<= main_n 37)) (or (< 37 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18760#(and (or (<= main_i 8) (<= main_n 37)) (or (< 37 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:53,303 INFO L273 TraceCheckUtils]: 5: Hoare triple {18760#(and (or (<= main_i 8) (<= main_n 37)) (or (< 37 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18761#(and (or (< 37 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 37) (<= main_i 12)))} is VALID [2019-02-27 12:59:53,304 INFO L273 TraceCheckUtils]: 6: Hoare triple {18761#(and (or (< 37 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 37) (<= main_i 12)))} assume i <= n * 4; {18761#(and (or (< 37 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 37) (<= main_i 12)))} is VALID [2019-02-27 12:59:53,305 INFO L273 TraceCheckUtils]: 7: Hoare triple {18761#(and (or (< 37 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 37) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {18762#(and (or (<= main_i 16) (<= main_n 37)) (or (< 37 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:53,306 INFO L273 TraceCheckUtils]: 8: Hoare triple {18762#(and (or (<= main_i 16) (<= main_n 37)) (or (< 37 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18762#(and (or (<= main_i 16) (<= main_n 37)) (or (< 37 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:53,307 INFO L273 TraceCheckUtils]: 9: Hoare triple {18762#(and (or (<= main_i 16) (<= main_n 37)) (or (< 37 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18763#(and (or (<= main_i 20) (<= main_n 37)) (or (< 37 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:53,308 INFO L273 TraceCheckUtils]: 10: Hoare triple {18763#(and (or (<= main_i 20) (<= main_n 37)) (or (< 37 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18763#(and (or (<= main_i 20) (<= main_n 37)) (or (< 37 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:53,309 INFO L273 TraceCheckUtils]: 11: Hoare triple {18763#(and (or (<= main_i 20) (<= main_n 37)) (or (< 37 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18764#(and (or (<= main_i 24) (<= main_n 37)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2019-02-27 12:59:53,309 INFO L273 TraceCheckUtils]: 12: Hoare triple {18764#(and (or (<= main_i 24) (<= main_n 37)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume i <= n * 4; {18764#(and (or (<= main_i 24) (<= main_n 37)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2019-02-27 12:59:53,310 INFO L273 TraceCheckUtils]: 13: Hoare triple {18764#(and (or (<= main_i 24) (<= main_n 37)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume a[i] != 23;i := i + 4; {18765#(and (or (<= main_n 37) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2019-02-27 12:59:53,311 INFO L273 TraceCheckUtils]: 14: Hoare triple {18765#(and (or (<= main_n 37) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume i <= n * 4; {18765#(and (or (<= main_n 37) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2019-02-27 12:59:53,312 INFO L273 TraceCheckUtils]: 15: Hoare triple {18765#(and (or (<= main_n 37) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume a[i] != 23;i := i + 4; {18766#(and (or (< 37 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 37)))} is VALID [2019-02-27 12:59:53,313 INFO L273 TraceCheckUtils]: 16: Hoare triple {18766#(and (or (< 37 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 37)))} assume i <= n * 4; {18766#(and (or (< 37 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 37)))} is VALID [2019-02-27 12:59:53,314 INFO L273 TraceCheckUtils]: 17: Hoare triple {18766#(and (or (< 37 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18767#(and (or (<= main_i 36) (<= main_n 37)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 37 main_n)))} is VALID [2019-02-27 12:59:53,315 INFO L273 TraceCheckUtils]: 18: Hoare triple {18767#(and (or (<= main_i 36) (<= main_n 37)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 37 main_n)))} assume i <= n * 4; {18767#(and (or (<= main_i 36) (<= main_n 37)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 37 main_n)))} is VALID [2019-02-27 12:59:53,316 INFO L273 TraceCheckUtils]: 19: Hoare triple {18767#(and (or (<= main_i 36) (<= main_n 37)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 37 main_n)))} assume a[i] != 23;i := i + 4; {18768#(and (or (<= main_i 40) (<= main_n 37)) (or (< 37 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:53,317 INFO L273 TraceCheckUtils]: 20: Hoare triple {18768#(and (or (<= main_i 40) (<= main_n 37)) (or (< 37 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18768#(and (or (<= main_i 40) (<= main_n 37)) (or (< 37 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:53,318 INFO L273 TraceCheckUtils]: 21: Hoare triple {18768#(and (or (<= main_i 40) (<= main_n 37)) (or (< 37 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18769#(and (or (<= main_n 37) (<= main_i 44)) (or (< 37 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:53,318 INFO L273 TraceCheckUtils]: 22: Hoare triple {18769#(and (or (<= main_n 37) (<= main_i 44)) (or (< 37 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18769#(and (or (<= main_n 37) (<= main_i 44)) (or (< 37 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:53,319 INFO L273 TraceCheckUtils]: 23: Hoare triple {18769#(and (or (<= main_n 37) (<= main_i 44)) (or (< 37 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18770#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_n 37) (<= main_i 48)))} is VALID [2019-02-27 12:59:53,320 INFO L273 TraceCheckUtils]: 24: Hoare triple {18770#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_n 37) (<= main_i 48)))} assume i <= n * 4; {18770#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_n 37) (<= main_i 48)))} is VALID [2019-02-27 12:59:53,321 INFO L273 TraceCheckUtils]: 25: Hoare triple {18770#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_n 37) (<= main_i 48)))} assume a[i] != 23;i := i + 4; {18771#(and (or (<= main_i 52) (<= main_n 37)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2019-02-27 12:59:53,322 INFO L273 TraceCheckUtils]: 26: Hoare triple {18771#(and (or (<= main_i 52) (<= main_n 37)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume i <= n * 4; {18771#(and (or (<= main_i 52) (<= main_n 37)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2019-02-27 12:59:53,323 INFO L273 TraceCheckUtils]: 27: Hoare triple {18771#(and (or (<= main_i 52) (<= main_n 37)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume a[i] != 23;i := i + 4; {18772#(and (or (< 37 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 37)))} is VALID [2019-02-27 12:59:53,324 INFO L273 TraceCheckUtils]: 28: Hoare triple {18772#(and (or (< 37 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 37)))} assume i <= n * 4; {18772#(and (or (< 37 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 37)))} is VALID [2019-02-27 12:59:53,325 INFO L273 TraceCheckUtils]: 29: Hoare triple {18772#(and (or (< 37 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18773#(and (or (< 37 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 37)))} is VALID [2019-02-27 12:59:53,325 INFO L273 TraceCheckUtils]: 30: Hoare triple {18773#(and (or (< 37 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 37)))} assume i <= n * 4; {18773#(and (or (< 37 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 37)))} is VALID [2019-02-27 12:59:53,327 INFO L273 TraceCheckUtils]: 31: Hoare triple {18773#(and (or (< 37 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18774#(and (or (<= main_i 64) (<= main_n 37)) (or (< 37 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:53,327 INFO L273 TraceCheckUtils]: 32: Hoare triple {18774#(and (or (<= main_i 64) (<= main_n 37)) (or (< 37 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18774#(and (or (<= main_i 64) (<= main_n 37)) (or (< 37 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:53,328 INFO L273 TraceCheckUtils]: 33: Hoare triple {18774#(and (or (<= main_i 64) (<= main_n 37)) (or (< 37 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18775#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_n 37) (<= main_i 68)))} is VALID [2019-02-27 12:59:53,329 INFO L273 TraceCheckUtils]: 34: Hoare triple {18775#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_n 37) (<= main_i 68)))} assume i <= n * 4; {18775#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_n 37) (<= main_i 68)))} is VALID [2019-02-27 12:59:53,330 INFO L273 TraceCheckUtils]: 35: Hoare triple {18775#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_n 37) (<= main_i 68)))} assume a[i] != 23;i := i + 4; {18776#(and (or (<= main_i 72) (<= main_n 37)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2019-02-27 12:59:53,331 INFO L273 TraceCheckUtils]: 36: Hoare triple {18776#(and (or (<= main_i 72) (<= main_n 37)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume i <= n * 4; {18776#(and (or (<= main_i 72) (<= main_n 37)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2019-02-27 12:59:53,332 INFO L273 TraceCheckUtils]: 37: Hoare triple {18776#(and (or (<= main_i 72) (<= main_n 37)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume a[i] != 23;i := i + 4; {18777#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_i 76) (<= main_n 37)))} is VALID [2019-02-27 12:59:53,333 INFO L273 TraceCheckUtils]: 38: Hoare triple {18777#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_i 76) (<= main_n 37)))} assume i <= n * 4; {18777#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_i 76) (<= main_n 37)))} is VALID [2019-02-27 12:59:53,334 INFO L273 TraceCheckUtils]: 39: Hoare triple {18777#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_i 76) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18778#(and (or (<= main_n 37) (<= main_i 80)) (or (< 37 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:53,335 INFO L273 TraceCheckUtils]: 40: Hoare triple {18778#(and (or (<= main_n 37) (<= main_i 80)) (or (< 37 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18778#(and (or (<= main_n 37) (<= main_i 80)) (or (< 37 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:53,336 INFO L273 TraceCheckUtils]: 41: Hoare triple {18778#(and (or (<= main_n 37) (<= main_i 80)) (or (< 37 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18779#(and (or (<= main_i 84) (<= main_n 37)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 37 main_n)))} is VALID [2019-02-27 12:59:53,337 INFO L273 TraceCheckUtils]: 42: Hoare triple {18779#(and (or (<= main_i 84) (<= main_n 37)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 37 main_n)))} assume i <= n * 4; {18779#(and (or (<= main_i 84) (<= main_n 37)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 37 main_n)))} is VALID [2019-02-27 12:59:53,338 INFO L273 TraceCheckUtils]: 43: Hoare triple {18779#(and (or (<= main_i 84) (<= main_n 37)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 37 main_n)))} assume a[i] != 23;i := i + 4; {18780#(and (or (< 37 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 37)))} is VALID [2019-02-27 12:59:53,339 INFO L273 TraceCheckUtils]: 44: Hoare triple {18780#(and (or (< 37 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 37)))} assume i <= n * 4; {18780#(and (or (< 37 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 37)))} is VALID [2019-02-27 12:59:53,340 INFO L273 TraceCheckUtils]: 45: Hoare triple {18780#(and (or (< 37 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18781#(and (or (<= main_i 92) (<= main_n 37)) (or (< 37 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:53,341 INFO L273 TraceCheckUtils]: 46: Hoare triple {18781#(and (or (<= main_i 92) (<= main_n 37)) (or (< 37 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18781#(and (or (<= main_i 92) (<= main_n 37)) (or (< 37 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:53,342 INFO L273 TraceCheckUtils]: 47: Hoare triple {18781#(and (or (<= main_i 92) (<= main_n 37)) (or (< 37 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18782#(and (or (< 37 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 37)))} is VALID [2019-02-27 12:59:53,342 INFO L273 TraceCheckUtils]: 48: Hoare triple {18782#(and (or (< 37 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 37)))} assume i <= n * 4; {18782#(and (or (< 37 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 37)))} is VALID [2019-02-27 12:59:53,344 INFO L273 TraceCheckUtils]: 49: Hoare triple {18782#(and (or (< 37 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18783#(and (or (<= main_i 100) (<= main_n 37)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2019-02-27 12:59:53,344 INFO L273 TraceCheckUtils]: 50: Hoare triple {18783#(and (or (<= main_i 100) (<= main_n 37)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume i <= n * 4; {18783#(and (or (<= main_i 100) (<= main_n 37)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2019-02-27 12:59:53,345 INFO L273 TraceCheckUtils]: 51: Hoare triple {18783#(and (or (<= main_i 100) (<= main_n 37)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume a[i] != 23;i := i + 4; {18784#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_i 104) (<= main_n 37)))} is VALID [2019-02-27 12:59:53,346 INFO L273 TraceCheckUtils]: 52: Hoare triple {18784#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_i 104) (<= main_n 37)))} assume i <= n * 4; {18784#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_i 104) (<= main_n 37)))} is VALID [2019-02-27 12:59:53,347 INFO L273 TraceCheckUtils]: 53: Hoare triple {18784#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_i 104) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18785#(and (or (<= main_n 37) (<= main_i 108)) (or (< 37 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:53,348 INFO L273 TraceCheckUtils]: 54: Hoare triple {18785#(and (or (<= main_n 37) (<= main_i 108)) (or (< 37 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18785#(and (or (<= main_n 37) (<= main_i 108)) (or (< 37 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:53,349 INFO L273 TraceCheckUtils]: 55: Hoare triple {18785#(and (or (<= main_n 37) (<= main_i 108)) (or (< 37 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18786#(and (or (<= main_n 37) (<= main_i 112)) (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} is VALID [2019-02-27 12:59:53,350 INFO L273 TraceCheckUtils]: 56: Hoare triple {18786#(and (or (<= main_n 37) (<= main_i 112)) (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} assume i <= n * 4; {18786#(and (or (<= main_n 37) (<= main_i 112)) (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} is VALID [2019-02-27 12:59:53,351 INFO L273 TraceCheckUtils]: 57: Hoare triple {18786#(and (or (<= main_n 37) (<= main_i 112)) (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} assume a[i] != 23;i := i + 4; {18787#(and (or (< 37 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 37)))} is VALID [2019-02-27 12:59:53,352 INFO L273 TraceCheckUtils]: 58: Hoare triple {18787#(and (or (< 37 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 37)))} assume i <= n * 4; {18787#(and (or (< 37 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 37)))} is VALID [2019-02-27 12:59:53,353 INFO L273 TraceCheckUtils]: 59: Hoare triple {18787#(and (or (< 37 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18788#(and (or (<= main_i 120) (<= main_n 37)) (or (< 37 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:53,354 INFO L273 TraceCheckUtils]: 60: Hoare triple {18788#(and (or (<= main_i 120) (<= main_n 37)) (or (< 37 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18788#(and (or (<= main_i 120) (<= main_n 37)) (or (< 37 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:53,355 INFO L273 TraceCheckUtils]: 61: Hoare triple {18788#(and (or (<= main_i 120) (<= main_n 37)) (or (< 37 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18789#(and (or (<= main_i 124) (<= main_n 37)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2019-02-27 12:59:53,355 INFO L273 TraceCheckUtils]: 62: Hoare triple {18789#(and (or (<= main_i 124) (<= main_n 37)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume i <= n * 4; {18789#(and (or (<= main_i 124) (<= main_n 37)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2019-02-27 12:59:53,356 INFO L273 TraceCheckUtils]: 63: Hoare triple {18789#(and (or (<= main_i 124) (<= main_n 37)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume a[i] != 23;i := i + 4; {18790#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))) (or (<= main_i 128) (<= main_n 37)))} is VALID [2019-02-27 12:59:53,357 INFO L273 TraceCheckUtils]: 64: Hoare triple {18790#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))) (or (<= main_i 128) (<= main_n 37)))} assume i <= n * 4; {18790#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))) (or (<= main_i 128) (<= main_n 37)))} is VALID [2019-02-27 12:59:53,358 INFO L273 TraceCheckUtils]: 65: Hoare triple {18790#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))) (or (<= main_i 128) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18791#(and (or (<= main_i 132) (<= main_n 37)) (or (< 37 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:53,359 INFO L273 TraceCheckUtils]: 66: Hoare triple {18791#(and (or (<= main_i 132) (<= main_n 37)) (or (< 37 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18791#(and (or (<= main_i 132) (<= main_n 37)) (or (< 37 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:53,360 INFO L273 TraceCheckUtils]: 67: Hoare triple {18791#(and (or (<= main_i 132) (<= main_n 37)) (or (< 37 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18792#(and (or (< 37 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 37)))} is VALID [2019-02-27 12:59:53,361 INFO L273 TraceCheckUtils]: 68: Hoare triple {18792#(and (or (< 37 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 37)))} assume i <= n * 4; {18792#(and (or (< 37 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 37)))} is VALID [2019-02-27 12:59:53,362 INFO L273 TraceCheckUtils]: 69: Hoare triple {18792#(and (or (< 37 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18793#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 37) (<= main_i 140)))} is VALID [2019-02-27 12:59:53,363 INFO L273 TraceCheckUtils]: 70: Hoare triple {18793#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 37) (<= main_i 140)))} assume i <= n * 4; {18793#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 37) (<= main_i 140)))} is VALID [2019-02-27 12:59:53,364 INFO L273 TraceCheckUtils]: 71: Hoare triple {18793#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 37) (<= main_i 140)))} assume a[i] != 23;i := i + 4; {18794#(and (or (<= main_n 37) (<= main_i 144)) (or (< 37 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:53,364 INFO L273 TraceCheckUtils]: 72: Hoare triple {18794#(and (or (<= main_n 37) (<= main_i 144)) (or (< 37 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18794#(and (or (<= main_n 37) (<= main_i 144)) (or (< 37 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 12:59:53,365 INFO L273 TraceCheckUtils]: 73: Hoare triple {18794#(and (or (<= main_n 37) (<= main_i 144)) (or (< 37 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18795#(and (or (<= main_i 148) (<= main_n 37)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 37 main_n)))} is VALID [2019-02-27 12:59:53,366 INFO L273 TraceCheckUtils]: 74: Hoare triple {18795#(and (or (<= main_i 148) (<= main_n 37)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 37 main_n)))} assume i <= n * 4; {18796#(and (or (< 37 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 148))} is VALID [2019-02-27 12:59:53,367 INFO L273 TraceCheckUtils]: 75: Hoare triple {18796#(and (or (< 37 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 148))} assume a[i] != 23;i := i + 4; {18797#(and (<= 38 main_n) (<= main_i 152))} is VALID [2019-02-27 12:59:53,368 INFO L273 TraceCheckUtils]: 76: Hoare triple {18797#(and (<= 38 main_n) (<= main_i 152))} assume !(i <= n * 4); {18757#false} is VALID [2019-02-27 12:59:53,395 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 1406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:59:53,395 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:59:53,395 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 12:59:53,395 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 12:59:53,395 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 12:59:53,395 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 12:59:53,395 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 12:59:53,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 12:59:53,408 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-27 12:59:53,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:59:53,430 WARN L254 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 81 conjunts are in the unsatisfiable core [2019-02-27 12:59:53,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 12:59:53,444 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 12:59:53,464 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 12:59:53,465 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:59:53,468 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:59:53,468 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 12:59:53,470 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:59:53,470 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_41]. (and (= (store v_main_a_41 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-27 12:59:53,471 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 12:59:56,066 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 12:59:56,069 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 12:59:56,074 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 12:59:56,074 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 12:59:56,076 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 12:59:56,077 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= (select main_a 148) 23)) (<= 148 .cse0) (= 23 (select main_a .cse0)) (<= main_i 152))) [2019-02-27 12:59:56,077 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 148 .cse0) (not (= 148 .cse0)) (<= main_i 152))) [2019-02-27 12:59:56,127 INFO L273 TraceCheckUtils]: 0: Hoare triple {18756#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {18801#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,128 INFO L273 TraceCheckUtils]: 1: Hoare triple {18801#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18805#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:59:56,128 INFO L273 TraceCheckUtils]: 2: Hoare triple {18805#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {18805#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 12:59:56,129 INFO L273 TraceCheckUtils]: 3: Hoare triple {18805#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {18812#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,130 INFO L273 TraceCheckUtils]: 4: Hoare triple {18812#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18812#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,131 INFO L273 TraceCheckUtils]: 5: Hoare triple {18812#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18819#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:59:56,131 INFO L273 TraceCheckUtils]: 6: Hoare triple {18819#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {18819#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 12:59:56,132 INFO L273 TraceCheckUtils]: 7: Hoare triple {18819#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {18826#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,133 INFO L273 TraceCheckUtils]: 8: Hoare triple {18826#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18826#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,133 INFO L273 TraceCheckUtils]: 9: Hoare triple {18826#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18833#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,134 INFO L273 TraceCheckUtils]: 10: Hoare triple {18833#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18833#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,135 INFO L273 TraceCheckUtils]: 11: Hoare triple {18833#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18840#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,136 INFO L273 TraceCheckUtils]: 12: Hoare triple {18840#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18840#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,136 INFO L273 TraceCheckUtils]: 13: Hoare triple {18840#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18847#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,137 INFO L273 TraceCheckUtils]: 14: Hoare triple {18847#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18847#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,138 INFO L273 TraceCheckUtils]: 15: Hoare triple {18847#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18854#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,138 INFO L273 TraceCheckUtils]: 16: Hoare triple {18854#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18854#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,139 INFO L273 TraceCheckUtils]: 17: Hoare triple {18854#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18861#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,140 INFO L273 TraceCheckUtils]: 18: Hoare triple {18861#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18861#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,140 INFO L273 TraceCheckUtils]: 19: Hoare triple {18861#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18868#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,141 INFO L273 TraceCheckUtils]: 20: Hoare triple {18868#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18868#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,142 INFO L273 TraceCheckUtils]: 21: Hoare triple {18868#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18875#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,142 INFO L273 TraceCheckUtils]: 22: Hoare triple {18875#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18875#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,143 INFO L273 TraceCheckUtils]: 23: Hoare triple {18875#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18882#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,144 INFO L273 TraceCheckUtils]: 24: Hoare triple {18882#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18882#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,145 INFO L273 TraceCheckUtils]: 25: Hoare triple {18882#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18889#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,145 INFO L273 TraceCheckUtils]: 26: Hoare triple {18889#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18889#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,146 INFO L273 TraceCheckUtils]: 27: Hoare triple {18889#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18896#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,147 INFO L273 TraceCheckUtils]: 28: Hoare triple {18896#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18896#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,147 INFO L273 TraceCheckUtils]: 29: Hoare triple {18896#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18903#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,148 INFO L273 TraceCheckUtils]: 30: Hoare triple {18903#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18903#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,149 INFO L273 TraceCheckUtils]: 31: Hoare triple {18903#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18910#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,150 INFO L273 TraceCheckUtils]: 32: Hoare triple {18910#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18910#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,150 INFO L273 TraceCheckUtils]: 33: Hoare triple {18910#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18917#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,151 INFO L273 TraceCheckUtils]: 34: Hoare triple {18917#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18917#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,152 INFO L273 TraceCheckUtils]: 35: Hoare triple {18917#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18924#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,152 INFO L273 TraceCheckUtils]: 36: Hoare triple {18924#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18924#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,153 INFO L273 TraceCheckUtils]: 37: Hoare triple {18924#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18931#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,154 INFO L273 TraceCheckUtils]: 38: Hoare triple {18931#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18931#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,154 INFO L273 TraceCheckUtils]: 39: Hoare triple {18931#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18938#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:59:56,155 INFO L273 TraceCheckUtils]: 40: Hoare triple {18938#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {18938#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 12:59:56,156 INFO L273 TraceCheckUtils]: 41: Hoare triple {18938#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {18945#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,156 INFO L273 TraceCheckUtils]: 42: Hoare triple {18945#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18945#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,157 INFO L273 TraceCheckUtils]: 43: Hoare triple {18945#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18952#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,158 INFO L273 TraceCheckUtils]: 44: Hoare triple {18952#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18952#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,159 INFO L273 TraceCheckUtils]: 45: Hoare triple {18952#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18959#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,159 INFO L273 TraceCheckUtils]: 46: Hoare triple {18959#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18959#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,160 INFO L273 TraceCheckUtils]: 47: Hoare triple {18959#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18966#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,161 INFO L273 TraceCheckUtils]: 48: Hoare triple {18966#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18966#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,161 INFO L273 TraceCheckUtils]: 49: Hoare triple {18966#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18973#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,162 INFO L273 TraceCheckUtils]: 50: Hoare triple {18973#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18973#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,163 INFO L273 TraceCheckUtils]: 51: Hoare triple {18973#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18980#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,163 INFO L273 TraceCheckUtils]: 52: Hoare triple {18980#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18980#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,164 INFO L273 TraceCheckUtils]: 53: Hoare triple {18980#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18987#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,165 INFO L273 TraceCheckUtils]: 54: Hoare triple {18987#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18987#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,166 INFO L273 TraceCheckUtils]: 55: Hoare triple {18987#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18994#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,166 INFO L273 TraceCheckUtils]: 56: Hoare triple {18994#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18994#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,167 INFO L273 TraceCheckUtils]: 57: Hoare triple {18994#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19001#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,168 INFO L273 TraceCheckUtils]: 58: Hoare triple {19001#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19001#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,168 INFO L273 TraceCheckUtils]: 59: Hoare triple {19001#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19008#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,169 INFO L273 TraceCheckUtils]: 60: Hoare triple {19008#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19008#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,170 INFO L273 TraceCheckUtils]: 61: Hoare triple {19008#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19015#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,170 INFO L273 TraceCheckUtils]: 62: Hoare triple {19015#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19015#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,171 INFO L273 TraceCheckUtils]: 63: Hoare triple {19015#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19022#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,172 INFO L273 TraceCheckUtils]: 64: Hoare triple {19022#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19022#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,173 INFO L273 TraceCheckUtils]: 65: Hoare triple {19022#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19029#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,173 INFO L273 TraceCheckUtils]: 66: Hoare triple {19029#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19029#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,174 INFO L273 TraceCheckUtils]: 67: Hoare triple {19029#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19036#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,175 INFO L273 TraceCheckUtils]: 68: Hoare triple {19036#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19036#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,176 INFO L273 TraceCheckUtils]: 69: Hoare triple {19036#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19043#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 12:59:56,176 INFO L273 TraceCheckUtils]: 70: Hoare triple {19043#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {19043#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 12:59:56,177 INFO L273 TraceCheckUtils]: 71: Hoare triple {19043#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {19050#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,178 INFO L273 TraceCheckUtils]: 72: Hoare triple {19050#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19050#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,179 INFO L273 TraceCheckUtils]: 73: Hoare triple {19050#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19057#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,179 INFO L273 TraceCheckUtils]: 74: Hoare triple {19057#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19061#(and (<= main_i (* 4 main_n)) (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 12:59:56,180 INFO L273 TraceCheckUtils]: 75: Hoare triple {19061#(and (<= main_i (* 4 main_n)) (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18797#(and (<= 38 main_n) (<= main_i 152))} is VALID [2019-02-27 12:59:56,181 INFO L273 TraceCheckUtils]: 76: Hoare triple {18797#(and (<= 38 main_n) (<= main_i 152))} assume !(i <= n * 4); {18757#false} is VALID [2019-02-27 12:59:56,196 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 1406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 12:59:56,196 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 13:00:00,493 INFO L273 TraceCheckUtils]: 76: Hoare triple {19068#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {18757#false} is VALID [2019-02-27 13:00:00,494 INFO L273 TraceCheckUtils]: 75: Hoare triple {19072#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {19068#(<= main_i (* 4 main_n))} is VALID [2019-02-27 13:00:00,495 INFO L273 TraceCheckUtils]: 74: Hoare triple {19076#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {19072#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:00:00,496 INFO L273 TraceCheckUtils]: 73: Hoare triple {19080#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {19076#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:00:00,497 INFO L273 TraceCheckUtils]: 72: Hoare triple {19080#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {19080#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:00:00,498 INFO L273 TraceCheckUtils]: 71: Hoare triple {19087#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {19080#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:00:00,499 INFO L273 TraceCheckUtils]: 70: Hoare triple {19087#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {19087#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:00:00,500 INFO L273 TraceCheckUtils]: 69: Hoare triple {19094#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {19087#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:00:00,500 INFO L273 TraceCheckUtils]: 68: Hoare triple {19094#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {19094#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:00:00,501 INFO L273 TraceCheckUtils]: 67: Hoare triple {19101#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {19094#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:00:00,504 INFO L273 TraceCheckUtils]: 66: Hoare triple {19101#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {19101#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:00:00,505 INFO L273 TraceCheckUtils]: 65: Hoare triple {19108#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19101#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:00:00,506 INFO L273 TraceCheckUtils]: 64: Hoare triple {19108#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {19108#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:00:00,506 INFO L273 TraceCheckUtils]: 63: Hoare triple {19115#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {19108#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:00:00,507 INFO L273 TraceCheckUtils]: 62: Hoare triple {19115#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {19115#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:00:00,508 INFO L273 TraceCheckUtils]: 61: Hoare triple {19122#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19115#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:00:00,508 INFO L273 TraceCheckUtils]: 60: Hoare triple {19122#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {19122#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:00:00,509 INFO L273 TraceCheckUtils]: 59: Hoare triple {19129#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19122#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:00:00,510 INFO L273 TraceCheckUtils]: 58: Hoare triple {19129#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {19129#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:00:00,511 INFO L273 TraceCheckUtils]: 57: Hoare triple {19136#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19129#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:00:00,511 INFO L273 TraceCheckUtils]: 56: Hoare triple {19136#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {19136#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:00:00,513 INFO L273 TraceCheckUtils]: 55: Hoare triple {19143#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {19136#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:00:00,513 INFO L273 TraceCheckUtils]: 54: Hoare triple {19143#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {19143#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:00:00,514 INFO L273 TraceCheckUtils]: 53: Hoare triple {19150#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19143#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:00:00,515 INFO L273 TraceCheckUtils]: 52: Hoare triple {19150#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {19150#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:00:00,516 INFO L273 TraceCheckUtils]: 51: Hoare triple {19157#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19150#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:00:00,516 INFO L273 TraceCheckUtils]: 50: Hoare triple {19157#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {19157#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:00:00,517 INFO L273 TraceCheckUtils]: 49: Hoare triple {19164#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {19157#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:00:00,518 INFO L273 TraceCheckUtils]: 48: Hoare triple {19164#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {19164#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:00:00,519 INFO L273 TraceCheckUtils]: 47: Hoare triple {19171#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19164#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:00:00,519 INFO L273 TraceCheckUtils]: 46: Hoare triple {19171#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {19171#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:00:00,521 INFO L273 TraceCheckUtils]: 45: Hoare triple {19178#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {19171#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:00:00,521 INFO L273 TraceCheckUtils]: 44: Hoare triple {19178#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {19178#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:00:00,522 INFO L273 TraceCheckUtils]: 43: Hoare triple {19185#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {19178#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:00:00,523 INFO L273 TraceCheckUtils]: 42: Hoare triple {19185#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {19185#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:00:00,524 INFO L273 TraceCheckUtils]: 41: Hoare triple {19192#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {19185#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:00:00,524 INFO L273 TraceCheckUtils]: 40: Hoare triple {19192#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {19192#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:00:00,525 INFO L273 TraceCheckUtils]: 39: Hoare triple {19199#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {19192#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:00:00,526 INFO L273 TraceCheckUtils]: 38: Hoare triple {19199#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {19199#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:00:00,527 INFO L273 TraceCheckUtils]: 37: Hoare triple {19206#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {19199#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:00:00,528 INFO L273 TraceCheckUtils]: 36: Hoare triple {19206#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {19206#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:00:00,529 INFO L273 TraceCheckUtils]: 35: Hoare triple {19213#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {19206#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:00:00,529 INFO L273 TraceCheckUtils]: 34: Hoare triple {19213#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {19213#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:00:00,534 INFO L273 TraceCheckUtils]: 33: Hoare triple {19220#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19213#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:00:00,535 INFO L273 TraceCheckUtils]: 32: Hoare triple {19220#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {19220#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:00:00,535 INFO L273 TraceCheckUtils]: 31: Hoare triple {19227#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19220#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:00:00,536 INFO L273 TraceCheckUtils]: 30: Hoare triple {19227#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {19227#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:00:00,536 INFO L273 TraceCheckUtils]: 29: Hoare triple {19234#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19227#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:00:00,537 INFO L273 TraceCheckUtils]: 28: Hoare triple {19234#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {19234#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:00:00,537 INFO L273 TraceCheckUtils]: 27: Hoare triple {19241#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {19234#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:00:00,538 INFO L273 TraceCheckUtils]: 26: Hoare triple {19241#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {19241#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:00:00,539 INFO L273 TraceCheckUtils]: 25: Hoare triple {19248#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19241#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:00:00,540 INFO L273 TraceCheckUtils]: 24: Hoare triple {19248#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {19248#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:00:00,541 INFO L273 TraceCheckUtils]: 23: Hoare triple {19255#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {19248#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:00:00,541 INFO L273 TraceCheckUtils]: 22: Hoare triple {19255#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {19255#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:00:00,542 INFO L273 TraceCheckUtils]: 21: Hoare triple {19262#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {19255#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:00:00,543 INFO L273 TraceCheckUtils]: 20: Hoare triple {19262#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {19262#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:00:00,544 INFO L273 TraceCheckUtils]: 19: Hoare triple {19269#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {19262#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:00:00,544 INFO L273 TraceCheckUtils]: 18: Hoare triple {19269#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {19269#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:00:00,545 INFO L273 TraceCheckUtils]: 17: Hoare triple {19276#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19269#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:00:00,546 INFO L273 TraceCheckUtils]: 16: Hoare triple {19276#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {19276#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:00:00,547 INFO L273 TraceCheckUtils]: 15: Hoare triple {19283#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19276#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:00:00,548 INFO L273 TraceCheckUtils]: 14: Hoare triple {19283#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {19283#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:00:00,549 INFO L273 TraceCheckUtils]: 13: Hoare triple {19290#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {19283#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:00:00,549 INFO L273 TraceCheckUtils]: 12: Hoare triple {19290#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {19290#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:00:00,550 INFO L273 TraceCheckUtils]: 11: Hoare triple {19297#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19290#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:00:00,551 INFO L273 TraceCheckUtils]: 10: Hoare triple {19297#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {19297#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:00:00,552 INFO L273 TraceCheckUtils]: 9: Hoare triple {19304#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {19297#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:00:00,552 INFO L273 TraceCheckUtils]: 8: Hoare triple {19304#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {19304#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:00:00,553 INFO L273 TraceCheckUtils]: 7: Hoare triple {19311#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {19304#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:00:00,554 INFO L273 TraceCheckUtils]: 6: Hoare triple {19311#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {19311#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:00:00,555 INFO L273 TraceCheckUtils]: 5: Hoare triple {19318#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {19311#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:00:00,556 INFO L273 TraceCheckUtils]: 4: Hoare triple {19318#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {19318#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:00:00,557 INFO L273 TraceCheckUtils]: 3: Hoare triple {19325#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {19318#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:00:00,557 INFO L273 TraceCheckUtils]: 2: Hoare triple {19325#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {19325#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:00:00,558 INFO L273 TraceCheckUtils]: 1: Hoare triple {19332#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {19325#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:00:00,559 INFO L273 TraceCheckUtils]: 0: Hoare triple {18756#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {19332#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-02-27 13:00:00,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 1406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:00:00,603 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 13:00:00,604 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40, 40] total 119 [2019-02-27 13:00:00,604 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 13:00:00,604 INFO L78 Accepts]: Start accepts. Automaton has 81 states. Word has length 77 [2019-02-27 13:00:00,604 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 13:00:00,604 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 81 states. [2019-02-27 13:00:00,791 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 153 edges. 153 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 13:00:00,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 81 states [2019-02-27 13:00:00,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2019-02-27 13:00:00,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1808, Invalid=12712, Unknown=0, NotChecked=0, Total=14520 [2019-02-27 13:00:00,792 INFO L87 Difference]: Start difference. First operand 78 states and 78 transitions. Second operand 81 states. [2019-02-27 13:00:12,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:00:12,202 INFO L93 Difference]: Finished difference Result 82 states and 82 transitions. [2019-02-27 13:00:12,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-02-27 13:00:12,203 INFO L78 Accepts]: Start accepts. Automaton has 81 states. Word has length 77 [2019-02-27 13:00:12,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 13:00:12,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-02-27 13:00:12,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 82 transitions. [2019-02-27 13:00:12,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-02-27 13:00:12,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 82 transitions. [2019-02-27 13:00:12,205 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 42 states and 82 transitions. [2019-02-27 13:00:12,297 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 82 edges. 82 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 13:00:12,299 INFO L225 Difference]: With dead ends: 82 [2019-02-27 13:00:12,299 INFO L226 Difference]: Without dead ends: 81 [2019-02-27 13:00:12,300 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3276 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=1808, Invalid=12712, Unknown=0, NotChecked=0, Total=14520 [2019-02-27 13:00:12,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2019-02-27 13:00:12,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 80. [2019-02-27 13:00:12,381 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 13:00:12,382 INFO L82 GeneralOperation]: Start isEquivalent. First operand 81 states. Second operand 80 states. [2019-02-27 13:00:12,382 INFO L74 IsIncluded]: Start isIncluded. First operand 81 states. Second operand 80 states. [2019-02-27 13:00:12,382 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 80 states. [2019-02-27 13:00:12,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:00:12,383 INFO L93 Difference]: Finished difference Result 81 states and 81 transitions. [2019-02-27 13:00:12,383 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 81 transitions. [2019-02-27 13:00:12,383 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 13:00:12,384 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 13:00:12,384 INFO L74 IsIncluded]: Start isIncluded. First operand 80 states. Second operand 81 states. [2019-02-27 13:00:12,384 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 81 states. [2019-02-27 13:00:12,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:00:12,385 INFO L93 Difference]: Finished difference Result 81 states and 81 transitions. [2019-02-27 13:00:12,385 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 81 transitions. [2019-02-27 13:00:12,386 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 13:00:12,386 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 13:00:12,386 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 13:00:12,386 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 13:00:12,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-02-27 13:00:12,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 80 transitions. [2019-02-27 13:00:12,387 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 80 transitions. Word has length 77 [2019-02-27 13:00:12,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 13:00:12,387 INFO L480 AbstractCegarLoop]: Abstraction has 80 states and 80 transitions. [2019-02-27 13:00:12,387 INFO L481 AbstractCegarLoop]: Interpolant automaton has 81 states. [2019-02-27 13:00:12,388 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 80 transitions. [2019-02-27 13:00:12,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-02-27 13:00:12,388 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 13:00:12,388 INFO L402 BasicCegarLoop]: trace histogram [39, 38, 1, 1] [2019-02-27 13:00:12,388 INFO L423 AbstractCegarLoop]: === Iteration 39 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 13:00:12,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 13:00:12,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1413541676, now seen corresponding path program 38 times [2019-02-27 13:00:12,389 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 13:00:12,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 13:00:12,390 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 13:00:12,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 13:00:12,390 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 13:00:12,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:00:14,430 INFO L273 TraceCheckUtils]: 0: Hoare triple {19738#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {19740#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 0)))} is VALID [2019-02-27 13:00:14,432 INFO L273 TraceCheckUtils]: 1: Hoare triple {19740#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 0)))} assume a[i] != 23;i := i + 4; {19741#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 38 main_n)) (or (<= main_n 38) (<= main_i 4)))} is VALID [2019-02-27 13:00:14,433 INFO L273 TraceCheckUtils]: 2: Hoare triple {19741#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 38 main_n)) (or (<= main_n 38) (<= main_i 4)))} assume i <= n * 4; {19741#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 38 main_n)) (or (<= main_n 38) (<= main_i 4)))} is VALID [2019-02-27 13:00:14,434 INFO L273 TraceCheckUtils]: 3: Hoare triple {19741#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 38 main_n)) (or (<= main_n 38) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {19742#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 8) (<= main_n 38)))} is VALID [2019-02-27 13:00:14,435 INFO L273 TraceCheckUtils]: 4: Hoare triple {19742#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 8) (<= main_n 38)))} assume i <= n * 4; {19742#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 8) (<= main_n 38)))} is VALID [2019-02-27 13:00:14,436 INFO L273 TraceCheckUtils]: 5: Hoare triple {19742#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 8) (<= main_n 38)))} assume a[i] != 23;i := i + 4; {19743#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 12)))} is VALID [2019-02-27 13:00:14,436 INFO L273 TraceCheckUtils]: 6: Hoare triple {19743#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 12)))} assume i <= n * 4; {19743#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 12)))} is VALID [2019-02-27 13:00:14,438 INFO L273 TraceCheckUtils]: 7: Hoare triple {19743#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {19744#(and (or (<= main_n 38) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-02-27 13:00:14,438 INFO L273 TraceCheckUtils]: 8: Hoare triple {19744#(and (or (<= main_n 38) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume i <= n * 4; {19744#(and (or (<= main_n 38) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-02-27 13:00:14,439 INFO L273 TraceCheckUtils]: 9: Hoare triple {19744#(and (or (<= main_n 38) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume a[i] != 23;i := i + 4; {19745#(and (or (< 38 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 20)))} is VALID [2019-02-27 13:00:14,440 INFO L273 TraceCheckUtils]: 10: Hoare triple {19745#(and (or (< 38 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 20)))} assume i <= n * 4; {19745#(and (or (< 38 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 20)))} is VALID [2019-02-27 13:00:14,441 INFO L273 TraceCheckUtils]: 11: Hoare triple {19745#(and (or (< 38 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 20)))} assume a[i] != 23;i := i + 4; {19746#(and (or (<= main_n 38) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-02-27 13:00:14,442 INFO L273 TraceCheckUtils]: 12: Hoare triple {19746#(and (or (<= main_n 38) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume i <= n * 4; {19746#(and (or (<= main_n 38) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-02-27 13:00:14,443 INFO L273 TraceCheckUtils]: 13: Hoare triple {19746#(and (or (<= main_n 38) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume a[i] != 23;i := i + 4; {19747#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 28)))} is VALID [2019-02-27 13:00:14,444 INFO L273 TraceCheckUtils]: 14: Hoare triple {19747#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 28)))} assume i <= n * 4; {19747#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 28)))} is VALID [2019-02-27 13:00:14,445 INFO L273 TraceCheckUtils]: 15: Hoare triple {19747#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {19748#(and (or (<= main_i 32) (<= main_n 38)) (or (< 38 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:14,446 INFO L273 TraceCheckUtils]: 16: Hoare triple {19748#(and (or (<= main_i 32) (<= main_n 38)) (or (< 38 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {19748#(and (or (<= main_i 32) (<= main_n 38)) (or (< 38 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:14,447 INFO L273 TraceCheckUtils]: 17: Hoare triple {19748#(and (or (<= main_i 32) (<= main_n 38)) (or (< 38 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {19749#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 38 main_n)) (or (<= main_i 36) (<= main_n 38)))} is VALID [2019-02-27 13:00:14,447 INFO L273 TraceCheckUtils]: 18: Hoare triple {19749#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 38 main_n)) (or (<= main_i 36) (<= main_n 38)))} assume i <= n * 4; {19749#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 38 main_n)) (or (<= main_i 36) (<= main_n 38)))} is VALID [2019-02-27 13:00:14,449 INFO L273 TraceCheckUtils]: 19: Hoare triple {19749#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 38 main_n)) (or (<= main_i 36) (<= main_n 38)))} assume a[i] != 23;i := i + 4; {19750#(and (or (<= main_i 40) (<= main_n 38)) (or (< 38 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:14,449 INFO L273 TraceCheckUtils]: 20: Hoare triple {19750#(and (or (<= main_i 40) (<= main_n 38)) (or (< 38 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {19750#(and (or (<= main_i 40) (<= main_n 38)) (or (< 38 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:14,450 INFO L273 TraceCheckUtils]: 21: Hoare triple {19750#(and (or (<= main_i 40) (<= main_n 38)) (or (< 38 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {19751#(and (or (< 38 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 44)))} is VALID [2019-02-27 13:00:14,451 INFO L273 TraceCheckUtils]: 22: Hoare triple {19751#(and (or (< 38 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 44)))} assume i <= n * 4; {19751#(and (or (< 38 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 44)))} is VALID [2019-02-27 13:00:14,452 INFO L273 TraceCheckUtils]: 23: Hoare triple {19751#(and (or (< 38 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 44)))} assume a[i] != 23;i := i + 4; {19752#(and (or (<= main_n 38) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-02-27 13:00:14,453 INFO L273 TraceCheckUtils]: 24: Hoare triple {19752#(and (or (<= main_n 38) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume i <= n * 4; {19752#(and (or (<= main_n 38) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-02-27 13:00:14,454 INFO L273 TraceCheckUtils]: 25: Hoare triple {19752#(and (or (<= main_n 38) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume a[i] != 23;i := i + 4; {19753#(and (or (<= main_i 52) (<= main_n 38)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-02-27 13:00:14,455 INFO L273 TraceCheckUtils]: 26: Hoare triple {19753#(and (or (<= main_i 52) (<= main_n 38)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume i <= n * 4; {19753#(and (or (<= main_i 52) (<= main_n 38)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-02-27 13:00:14,456 INFO L273 TraceCheckUtils]: 27: Hoare triple {19753#(and (or (<= main_i 52) (<= main_n 38)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume a[i] != 23;i := i + 4; {19754#(and (or (<= main_n 38) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-02-27 13:00:14,456 INFO L273 TraceCheckUtils]: 28: Hoare triple {19754#(and (or (<= main_n 38) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume i <= n * 4; {19754#(and (or (<= main_n 38) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-02-27 13:00:14,457 INFO L273 TraceCheckUtils]: 29: Hoare triple {19754#(and (or (<= main_n 38) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume a[i] != 23;i := i + 4; {19755#(and (or (<= main_n 38) (<= main_i 60)) (or (< 38 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:14,458 INFO L273 TraceCheckUtils]: 30: Hoare triple {19755#(and (or (<= main_n 38) (<= main_i 60)) (or (< 38 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {19755#(and (or (<= main_n 38) (<= main_i 60)) (or (< 38 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:14,459 INFO L273 TraceCheckUtils]: 31: Hoare triple {19755#(and (or (<= main_n 38) (<= main_i 60)) (or (< 38 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {19756#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 64) (<= main_n 38)))} is VALID [2019-02-27 13:00:14,460 INFO L273 TraceCheckUtils]: 32: Hoare triple {19756#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 64) (<= main_n 38)))} assume i <= n * 4; {19756#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 64) (<= main_n 38)))} is VALID [2019-02-27 13:00:14,461 INFO L273 TraceCheckUtils]: 33: Hoare triple {19756#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 64) (<= main_n 38)))} assume a[i] != 23;i := i + 4; {19757#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 68)))} is VALID [2019-02-27 13:00:14,462 INFO L273 TraceCheckUtils]: 34: Hoare triple {19757#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 68)))} assume i <= n * 4; {19757#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 68)))} is VALID [2019-02-27 13:00:14,463 INFO L273 TraceCheckUtils]: 35: Hoare triple {19757#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 68)))} assume a[i] != 23;i := i + 4; {19758#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 72)))} is VALID [2019-02-27 13:00:14,463 INFO L273 TraceCheckUtils]: 36: Hoare triple {19758#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 72)))} assume i <= n * 4; {19758#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 72)))} is VALID [2019-02-27 13:00:14,465 INFO L273 TraceCheckUtils]: 37: Hoare triple {19758#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 72)))} assume a[i] != 23;i := i + 4; {19759#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 76) (<= main_n 38)))} is VALID [2019-02-27 13:00:14,465 INFO L273 TraceCheckUtils]: 38: Hoare triple {19759#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 76) (<= main_n 38)))} assume i <= n * 4; {19759#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 76) (<= main_n 38)))} is VALID [2019-02-27 13:00:14,466 INFO L273 TraceCheckUtils]: 39: Hoare triple {19759#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 76) (<= main_n 38)))} assume a[i] != 23;i := i + 4; {19760#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 80)))} is VALID [2019-02-27 13:00:14,467 INFO L273 TraceCheckUtils]: 40: Hoare triple {19760#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 80)))} assume i <= n * 4; {19760#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 80)))} is VALID [2019-02-27 13:00:14,468 INFO L273 TraceCheckUtils]: 41: Hoare triple {19760#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 80)))} assume a[i] != 23;i := i + 4; {19761#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 38 main_n)) (or (<= main_i 84) (<= main_n 38)))} is VALID [2019-02-27 13:00:14,469 INFO L273 TraceCheckUtils]: 42: Hoare triple {19761#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 38 main_n)) (or (<= main_i 84) (<= main_n 38)))} assume i <= n * 4; {19761#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 38 main_n)) (or (<= main_i 84) (<= main_n 38)))} is VALID [2019-02-27 13:00:14,470 INFO L273 TraceCheckUtils]: 43: Hoare triple {19761#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 38 main_n)) (or (<= main_i 84) (<= main_n 38)))} assume a[i] != 23;i := i + 4; {19762#(and (or (<= main_i 88) (<= main_n 38)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-02-27 13:00:14,471 INFO L273 TraceCheckUtils]: 44: Hoare triple {19762#(and (or (<= main_i 88) (<= main_n 38)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume i <= n * 4; {19762#(and (or (<= main_i 88) (<= main_n 38)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-02-27 13:00:14,472 INFO L273 TraceCheckUtils]: 45: Hoare triple {19762#(and (or (<= main_i 88) (<= main_n 38)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume a[i] != 23;i := i + 4; {19763#(and (or (<= main_i 92) (<= main_n 38)) (or (< 38 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:14,472 INFO L273 TraceCheckUtils]: 46: Hoare triple {19763#(and (or (<= main_i 92) (<= main_n 38)) (or (< 38 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {19763#(and (or (<= main_i 92) (<= main_n 38)) (or (< 38 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:14,473 INFO L273 TraceCheckUtils]: 47: Hoare triple {19763#(and (or (<= main_i 92) (<= main_n 38)) (or (< 38 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {19764#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 96) (<= main_n 38)))} is VALID [2019-02-27 13:00:14,474 INFO L273 TraceCheckUtils]: 48: Hoare triple {19764#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 96) (<= main_n 38)))} assume i <= n * 4; {19764#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 96) (<= main_n 38)))} is VALID [2019-02-27 13:00:14,475 INFO L273 TraceCheckUtils]: 49: Hoare triple {19764#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 96) (<= main_n 38)))} assume a[i] != 23;i := i + 4; {19765#(and (or (<= main_i 100) (<= main_n 38)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-02-27 13:00:14,476 INFO L273 TraceCheckUtils]: 50: Hoare triple {19765#(and (or (<= main_i 100) (<= main_n 38)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume i <= n * 4; {19765#(and (or (<= main_i 100) (<= main_n 38)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-02-27 13:00:14,477 INFO L273 TraceCheckUtils]: 51: Hoare triple {19765#(and (or (<= main_i 100) (<= main_n 38)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume a[i] != 23;i := i + 4; {19766#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 104) (<= main_n 38)))} is VALID [2019-02-27 13:00:14,478 INFO L273 TraceCheckUtils]: 52: Hoare triple {19766#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 104) (<= main_n 38)))} assume i <= n * 4; {19766#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 104) (<= main_n 38)))} is VALID [2019-02-27 13:00:14,479 INFO L273 TraceCheckUtils]: 53: Hoare triple {19766#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 104) (<= main_n 38)))} assume a[i] != 23;i := i + 4; {19767#(and (or (<= main_n 38) (<= main_i 108)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-02-27 13:00:14,480 INFO L273 TraceCheckUtils]: 54: Hoare triple {19767#(and (or (<= main_n 38) (<= main_i 108)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume i <= n * 4; {19767#(and (or (<= main_n 38) (<= main_i 108)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-02-27 13:00:14,481 INFO L273 TraceCheckUtils]: 55: Hoare triple {19767#(and (or (<= main_n 38) (<= main_i 108)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume a[i] != 23;i := i + 4; {19768#(and (or (<= main_n 38) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 38 main_n)))} is VALID [2019-02-27 13:00:14,481 INFO L273 TraceCheckUtils]: 56: Hoare triple {19768#(and (or (<= main_n 38) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 38 main_n)))} assume i <= n * 4; {19768#(and (or (<= main_n 38) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 38 main_n)))} is VALID [2019-02-27 13:00:14,483 INFO L273 TraceCheckUtils]: 57: Hoare triple {19768#(and (or (<= main_n 38) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 38 main_n)))} assume a[i] != 23;i := i + 4; {19769#(and (or (< 38 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 116)))} is VALID [2019-02-27 13:00:14,483 INFO L273 TraceCheckUtils]: 58: Hoare triple {19769#(and (or (< 38 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 116)))} assume i <= n * 4; {19769#(and (or (< 38 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 116)))} is VALID [2019-02-27 13:00:14,484 INFO L273 TraceCheckUtils]: 59: Hoare triple {19769#(and (or (< 38 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 116)))} assume a[i] != 23;i := i + 4; {19770#(and (or (<= main_i 120) (<= main_n 38)) (or (< 38 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:14,485 INFO L273 TraceCheckUtils]: 60: Hoare triple {19770#(and (or (<= main_i 120) (<= main_n 38)) (or (< 38 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {19770#(and (or (<= main_i 120) (<= main_n 38)) (or (< 38 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:14,486 INFO L273 TraceCheckUtils]: 61: Hoare triple {19770#(and (or (<= main_i 120) (<= main_n 38)) (or (< 38 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {19771#(and (or (<= main_n 38) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-02-27 13:00:14,487 INFO L273 TraceCheckUtils]: 62: Hoare triple {19771#(and (or (<= main_n 38) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume i <= n * 4; {19771#(and (or (<= main_n 38) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-02-27 13:00:14,488 INFO L273 TraceCheckUtils]: 63: Hoare triple {19771#(and (or (<= main_n 38) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume a[i] != 23;i := i + 4; {19772#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 38 main_n)) (or (<= main_n 38) (<= main_i 128)))} is VALID [2019-02-27 13:00:14,489 INFO L273 TraceCheckUtils]: 64: Hoare triple {19772#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 38 main_n)) (or (<= main_n 38) (<= main_i 128)))} assume i <= n * 4; {19772#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 38 main_n)) (or (<= main_n 38) (<= main_i 128)))} is VALID [2019-02-27 13:00:14,490 INFO L273 TraceCheckUtils]: 65: Hoare triple {19772#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 38 main_n)) (or (<= main_n 38) (<= main_i 128)))} assume a[i] != 23;i := i + 4; {19773#(and (or (<= main_i 132) (<= main_n 38)) (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-02-27 13:00:14,491 INFO L273 TraceCheckUtils]: 66: Hoare triple {19773#(and (or (<= main_i 132) (<= main_n 38)) (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume i <= n * 4; {19773#(and (or (<= main_i 132) (<= main_n 38)) (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2019-02-27 13:00:14,492 INFO L273 TraceCheckUtils]: 67: Hoare triple {19773#(and (or (<= main_i 132) (<= main_n 38)) (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume a[i] != 23;i := i + 4; {19774#(and (or (<= main_i 136) (<= main_n 38)) (or (< 38 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:14,493 INFO L273 TraceCheckUtils]: 68: Hoare triple {19774#(and (or (<= main_i 136) (<= main_n 38)) (or (< 38 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {19774#(and (or (<= main_i 136) (<= main_n 38)) (or (< 38 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:14,494 INFO L273 TraceCheckUtils]: 69: Hoare triple {19774#(and (or (<= main_i 136) (<= main_n 38)) (or (< 38 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {19775#(and (or (<= main_n 38) (<= main_i 140)) (or (< 38 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))))} is VALID [2019-02-27 13:00:14,495 INFO L273 TraceCheckUtils]: 70: Hoare triple {19775#(and (or (<= main_n 38) (<= main_i 140)) (or (< 38 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))))} assume i <= n * 4; {19775#(and (or (<= main_n 38) (<= main_i 140)) (or (< 38 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))))} is VALID [2019-02-27 13:00:14,496 INFO L273 TraceCheckUtils]: 71: Hoare triple {19775#(and (or (<= main_n 38) (<= main_i 140)) (or (< 38 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))))} assume a[i] != 23;i := i + 4; {19776#(and (or (<= main_n 38) (<= main_i 144)) (or (< 38 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:14,496 INFO L273 TraceCheckUtils]: 72: Hoare triple {19776#(and (or (<= main_n 38) (<= main_i 144)) (or (< 38 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {19776#(and (or (<= main_n 38) (<= main_i 144)) (or (< 38 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:14,497 INFO L273 TraceCheckUtils]: 73: Hoare triple {19776#(and (or (<= main_n 38) (<= main_i 144)) (or (< 38 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {19777#(and (or (< 38 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 148)))} is VALID [2019-02-27 13:00:14,498 INFO L273 TraceCheckUtils]: 74: Hoare triple {19777#(and (or (< 38 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 148)))} assume i <= n * 4; {19777#(and (or (< 38 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 148)))} is VALID [2019-02-27 13:00:14,499 INFO L273 TraceCheckUtils]: 75: Hoare triple {19777#(and (or (< 38 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 148)))} assume a[i] != 23;i := i + 4; {19778#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 38 main_n)) (or (<= main_n 38) (<= main_i 152)))} is VALID [2019-02-27 13:00:14,500 INFO L273 TraceCheckUtils]: 76: Hoare triple {19778#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 38 main_n)) (or (<= main_n 38) (<= main_i 152)))} assume i <= n * 4; {19779#(and (or (< 38 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 152))} is VALID [2019-02-27 13:00:14,501 INFO L273 TraceCheckUtils]: 77: Hoare triple {19779#(and (or (< 38 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 152))} assume a[i] != 23;i := i + 4; {19780#(and (<= main_i 156) (< 38 main_n))} is VALID [2019-02-27 13:00:14,502 INFO L273 TraceCheckUtils]: 78: Hoare triple {19780#(and (<= main_i 156) (< 38 main_n))} assume !(i <= n * 4); {19739#false} is VALID [2019-02-27 13:00:14,534 INFO L134 CoverageAnalysis]: Checked inductivity of 1482 backedges. 0 proven. 1482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:00:14,535 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 13:00:14,535 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 13:00:14,535 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 13:00:14,535 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 13:00:14,535 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 13:00:14,535 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 13:00:14,543 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-27 13:00:14,544 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-27 13:00:14,595 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 39 check-sat command(s) [2019-02-27 13:00:14,596 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 13:00:14,597 WARN L254 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 83 conjunts are in the unsatisfiable core [2019-02-27 13:00:14,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:00:14,611 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 13:00:14,661 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 13:00:14,662 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 13:00:14,666 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 13:00:14,667 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 13:00:14,669 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 13:00:14,669 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_42]. (and (= (store v_main_a_42 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-27 13:00:14,669 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 13:00:17,351 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 13:00:17,358 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 13:00:17,362 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 13:00:17,363 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 13:00:17,365 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 13:00:17,365 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 156) (<= 152 .cse0) (not (= (select main_a 152) 23)) (= 23 (select main_a .cse0)))) [2019-02-27 13:00:17,365 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 156) (<= 152 .cse0) (not (= 152 .cse0)))) [2019-02-27 13:00:17,415 INFO L273 TraceCheckUtils]: 0: Hoare triple {19738#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {19784#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,416 INFO L273 TraceCheckUtils]: 1: Hoare triple {19784#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19788#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 13:00:17,416 INFO L273 TraceCheckUtils]: 2: Hoare triple {19788#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {19788#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 13:00:17,417 INFO L273 TraceCheckUtils]: 3: Hoare triple {19788#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {19795#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,417 INFO L273 TraceCheckUtils]: 4: Hoare triple {19795#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19795#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,418 INFO L273 TraceCheckUtils]: 5: Hoare triple {19795#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19802#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 13:00:17,419 INFO L273 TraceCheckUtils]: 6: Hoare triple {19802#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {19802#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 13:00:17,419 INFO L273 TraceCheckUtils]: 7: Hoare triple {19802#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {19809#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,420 INFO L273 TraceCheckUtils]: 8: Hoare triple {19809#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19809#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,421 INFO L273 TraceCheckUtils]: 9: Hoare triple {19809#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19816#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,421 INFO L273 TraceCheckUtils]: 10: Hoare triple {19816#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19816#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,422 INFO L273 TraceCheckUtils]: 11: Hoare triple {19816#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19823#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,423 INFO L273 TraceCheckUtils]: 12: Hoare triple {19823#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19823#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,424 INFO L273 TraceCheckUtils]: 13: Hoare triple {19823#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19830#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,424 INFO L273 TraceCheckUtils]: 14: Hoare triple {19830#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19830#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,425 INFO L273 TraceCheckUtils]: 15: Hoare triple {19830#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19837#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,426 INFO L273 TraceCheckUtils]: 16: Hoare triple {19837#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19837#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,426 INFO L273 TraceCheckUtils]: 17: Hoare triple {19837#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19844#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,427 INFO L273 TraceCheckUtils]: 18: Hoare triple {19844#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19844#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,428 INFO L273 TraceCheckUtils]: 19: Hoare triple {19844#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19851#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,429 INFO L273 TraceCheckUtils]: 20: Hoare triple {19851#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19851#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,429 INFO L273 TraceCheckUtils]: 21: Hoare triple {19851#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19858#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,430 INFO L273 TraceCheckUtils]: 22: Hoare triple {19858#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19858#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,431 INFO L273 TraceCheckUtils]: 23: Hoare triple {19858#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19865#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,431 INFO L273 TraceCheckUtils]: 24: Hoare triple {19865#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19865#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,432 INFO L273 TraceCheckUtils]: 25: Hoare triple {19865#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19872#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,433 INFO L273 TraceCheckUtils]: 26: Hoare triple {19872#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19872#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,434 INFO L273 TraceCheckUtils]: 27: Hoare triple {19872#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19879#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,434 INFO L273 TraceCheckUtils]: 28: Hoare triple {19879#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19879#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,435 INFO L273 TraceCheckUtils]: 29: Hoare triple {19879#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19886#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,436 INFO L273 TraceCheckUtils]: 30: Hoare triple {19886#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19886#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,436 INFO L273 TraceCheckUtils]: 31: Hoare triple {19886#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19893#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,437 INFO L273 TraceCheckUtils]: 32: Hoare triple {19893#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19893#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,438 INFO L273 TraceCheckUtils]: 33: Hoare triple {19893#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19900#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,438 INFO L273 TraceCheckUtils]: 34: Hoare triple {19900#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19900#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,439 INFO L273 TraceCheckUtils]: 35: Hoare triple {19900#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19907#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,440 INFO L273 TraceCheckUtils]: 36: Hoare triple {19907#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19907#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,441 INFO L273 TraceCheckUtils]: 37: Hoare triple {19907#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19914#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,441 INFO L273 TraceCheckUtils]: 38: Hoare triple {19914#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19914#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,442 INFO L273 TraceCheckUtils]: 39: Hoare triple {19914#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19921#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 13:00:17,443 INFO L273 TraceCheckUtils]: 40: Hoare triple {19921#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {19921#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 13:00:17,443 INFO L273 TraceCheckUtils]: 41: Hoare triple {19921#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {19928#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,444 INFO L273 TraceCheckUtils]: 42: Hoare triple {19928#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19928#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,445 INFO L273 TraceCheckUtils]: 43: Hoare triple {19928#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19935#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,446 INFO L273 TraceCheckUtils]: 44: Hoare triple {19935#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19935#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,446 INFO L273 TraceCheckUtils]: 45: Hoare triple {19935#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19942#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,447 INFO L273 TraceCheckUtils]: 46: Hoare triple {19942#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19942#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,448 INFO L273 TraceCheckUtils]: 47: Hoare triple {19942#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19949#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,449 INFO L273 TraceCheckUtils]: 48: Hoare triple {19949#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19949#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,449 INFO L273 TraceCheckUtils]: 49: Hoare triple {19949#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19956#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,450 INFO L273 TraceCheckUtils]: 50: Hoare triple {19956#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19956#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,451 INFO L273 TraceCheckUtils]: 51: Hoare triple {19956#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19963#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,451 INFO L273 TraceCheckUtils]: 52: Hoare triple {19963#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19963#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,452 INFO L273 TraceCheckUtils]: 53: Hoare triple {19963#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19970#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,453 INFO L273 TraceCheckUtils]: 54: Hoare triple {19970#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19970#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,454 INFO L273 TraceCheckUtils]: 55: Hoare triple {19970#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19977#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,454 INFO L273 TraceCheckUtils]: 56: Hoare triple {19977#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19977#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,455 INFO L273 TraceCheckUtils]: 57: Hoare triple {19977#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19984#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,456 INFO L273 TraceCheckUtils]: 58: Hoare triple {19984#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19984#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,456 INFO L273 TraceCheckUtils]: 59: Hoare triple {19984#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19991#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,457 INFO L273 TraceCheckUtils]: 60: Hoare triple {19991#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19991#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,458 INFO L273 TraceCheckUtils]: 61: Hoare triple {19991#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19998#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,459 INFO L273 TraceCheckUtils]: 62: Hoare triple {19998#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19998#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,459 INFO L273 TraceCheckUtils]: 63: Hoare triple {19998#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20005#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,460 INFO L273 TraceCheckUtils]: 64: Hoare triple {20005#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20005#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,461 INFO L273 TraceCheckUtils]: 65: Hoare triple {20005#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20012#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,462 INFO L273 TraceCheckUtils]: 66: Hoare triple {20012#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20012#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,462 INFO L273 TraceCheckUtils]: 67: Hoare triple {20012#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20019#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,463 INFO L273 TraceCheckUtils]: 68: Hoare triple {20019#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20019#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,464 INFO L273 TraceCheckUtils]: 69: Hoare triple {20019#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20026#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 13:00:17,465 INFO L273 TraceCheckUtils]: 70: Hoare triple {20026#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {20026#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 13:00:17,465 INFO L273 TraceCheckUtils]: 71: Hoare triple {20026#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {20033#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,466 INFO L273 TraceCheckUtils]: 72: Hoare triple {20033#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20033#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,467 INFO L273 TraceCheckUtils]: 73: Hoare triple {20033#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20040#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,468 INFO L273 TraceCheckUtils]: 74: Hoare triple {20040#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20040#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,468 INFO L273 TraceCheckUtils]: 75: Hoare triple {20040#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20047#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,469 INFO L273 TraceCheckUtils]: 76: Hoare triple {20047#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20051#(and (<= main_i (* 4 main_n)) (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:17,470 INFO L273 TraceCheckUtils]: 77: Hoare triple {20051#(and (<= main_i (* 4 main_n)) (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19780#(and (<= main_i 156) (< 38 main_n))} is VALID [2019-02-27 13:00:17,471 INFO L273 TraceCheckUtils]: 78: Hoare triple {19780#(and (<= main_i 156) (< 38 main_n))} assume !(i <= n * 4); {19739#false} is VALID [2019-02-27 13:00:17,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1482 backedges. 0 proven. 1482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:00:17,486 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 13:00:22,066 INFO L273 TraceCheckUtils]: 78: Hoare triple {20058#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {19739#false} is VALID [2019-02-27 13:00:22,067 INFO L273 TraceCheckUtils]: 77: Hoare triple {20062#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {20058#(<= main_i (* 4 main_n))} is VALID [2019-02-27 13:00:22,067 INFO L273 TraceCheckUtils]: 76: Hoare triple {20066#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {20062#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:00:22,068 INFO L273 TraceCheckUtils]: 75: Hoare triple {20070#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {20066#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:00:22,068 INFO L273 TraceCheckUtils]: 74: Hoare triple {20070#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {20070#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:00:22,069 INFO L273 TraceCheckUtils]: 73: Hoare triple {20077#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {20070#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:00:22,069 INFO L273 TraceCheckUtils]: 72: Hoare triple {20077#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {20077#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:00:22,070 INFO L273 TraceCheckUtils]: 71: Hoare triple {20084#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {20077#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:00:22,071 INFO L273 TraceCheckUtils]: 70: Hoare triple {20084#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {20084#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:00:22,072 INFO L273 TraceCheckUtils]: 69: Hoare triple {20091#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {20084#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:00:22,072 INFO L273 TraceCheckUtils]: 68: Hoare triple {20091#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {20091#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:00:22,073 INFO L273 TraceCheckUtils]: 67: Hoare triple {20098#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20091#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:00:22,074 INFO L273 TraceCheckUtils]: 66: Hoare triple {20098#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {20098#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:00:22,075 INFO L273 TraceCheckUtils]: 65: Hoare triple {20105#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {20098#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:00:22,075 INFO L273 TraceCheckUtils]: 64: Hoare triple {20105#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {20105#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:00:22,076 INFO L273 TraceCheckUtils]: 63: Hoare triple {20112#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20105#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:00:22,077 INFO L273 TraceCheckUtils]: 62: Hoare triple {20112#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {20112#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:00:22,078 INFO L273 TraceCheckUtils]: 61: Hoare triple {20119#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20112#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:00:22,079 INFO L273 TraceCheckUtils]: 60: Hoare triple {20119#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {20119#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:00:22,080 INFO L273 TraceCheckUtils]: 59: Hoare triple {20126#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20119#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:00:22,080 INFO L273 TraceCheckUtils]: 58: Hoare triple {20126#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {20126#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:00:22,081 INFO L273 TraceCheckUtils]: 57: Hoare triple {20133#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {20126#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:00:22,082 INFO L273 TraceCheckUtils]: 56: Hoare triple {20133#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {20133#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:00:22,083 INFO L273 TraceCheckUtils]: 55: Hoare triple {20140#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20133#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:00:22,083 INFO L273 TraceCheckUtils]: 54: Hoare triple {20140#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {20140#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:00:22,084 INFO L273 TraceCheckUtils]: 53: Hoare triple {20147#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20140#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:00:22,085 INFO L273 TraceCheckUtils]: 52: Hoare triple {20147#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {20147#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:00:22,086 INFO L273 TraceCheckUtils]: 51: Hoare triple {20154#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {20147#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:00:22,086 INFO L273 TraceCheckUtils]: 50: Hoare triple {20154#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {20154#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:00:22,087 INFO L273 TraceCheckUtils]: 49: Hoare triple {20161#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20154#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:00:22,088 INFO L273 TraceCheckUtils]: 48: Hoare triple {20161#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {20161#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:00:22,089 INFO L273 TraceCheckUtils]: 47: Hoare triple {20168#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {20161#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:00:22,090 INFO L273 TraceCheckUtils]: 46: Hoare triple {20168#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {20168#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:00:22,091 INFO L273 TraceCheckUtils]: 45: Hoare triple {20175#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {20168#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:00:22,091 INFO L273 TraceCheckUtils]: 44: Hoare triple {20175#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {20175#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:00:22,092 INFO L273 TraceCheckUtils]: 43: Hoare triple {20182#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {20175#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:00:22,093 INFO L273 TraceCheckUtils]: 42: Hoare triple {20182#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {20182#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:00:22,094 INFO L273 TraceCheckUtils]: 41: Hoare triple {20189#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {20182#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:00:22,094 INFO L273 TraceCheckUtils]: 40: Hoare triple {20189#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {20189#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:00:22,095 INFO L273 TraceCheckUtils]: 39: Hoare triple {20196#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {20189#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:00:22,096 INFO L273 TraceCheckUtils]: 38: Hoare triple {20196#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {20196#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:00:22,097 INFO L273 TraceCheckUtils]: 37: Hoare triple {20203#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {20196#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:00:22,097 INFO L273 TraceCheckUtils]: 36: Hoare triple {20203#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {20203#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:00:22,098 INFO L273 TraceCheckUtils]: 35: Hoare triple {20210#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20203#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:00:22,099 INFO L273 TraceCheckUtils]: 34: Hoare triple {20210#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {20210#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:00:22,100 INFO L273 TraceCheckUtils]: 33: Hoare triple {20217#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20210#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:00:22,101 INFO L273 TraceCheckUtils]: 32: Hoare triple {20217#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {20217#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:00:22,102 INFO L273 TraceCheckUtils]: 31: Hoare triple {20224#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20217#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:00:22,102 INFO L273 TraceCheckUtils]: 30: Hoare triple {20224#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {20224#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:00:22,103 INFO L273 TraceCheckUtils]: 29: Hoare triple {20231#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {20224#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:00:22,104 INFO L273 TraceCheckUtils]: 28: Hoare triple {20231#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {20231#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:00:22,105 INFO L273 TraceCheckUtils]: 27: Hoare triple {20238#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20231#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:00:22,105 INFO L273 TraceCheckUtils]: 26: Hoare triple {20238#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {20238#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:00:22,106 INFO L273 TraceCheckUtils]: 25: Hoare triple {20245#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {20238#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:00:22,107 INFO L273 TraceCheckUtils]: 24: Hoare triple {20245#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {20245#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:00:22,108 INFO L273 TraceCheckUtils]: 23: Hoare triple {20252#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {20245#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:00:22,108 INFO L273 TraceCheckUtils]: 22: Hoare triple {20252#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {20252#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:00:22,109 INFO L273 TraceCheckUtils]: 21: Hoare triple {20259#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {20252#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:00:22,110 INFO L273 TraceCheckUtils]: 20: Hoare triple {20259#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {20259#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:00:22,111 INFO L273 TraceCheckUtils]: 19: Hoare triple {20266#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20259#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:00:22,112 INFO L273 TraceCheckUtils]: 18: Hoare triple {20266#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {20266#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:00:22,113 INFO L273 TraceCheckUtils]: 17: Hoare triple {20273#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20266#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:00:22,113 INFO L273 TraceCheckUtils]: 16: Hoare triple {20273#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {20273#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:00:22,114 INFO L273 TraceCheckUtils]: 15: Hoare triple {20280#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {20273#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:00:22,115 INFO L273 TraceCheckUtils]: 14: Hoare triple {20280#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {20280#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:00:22,116 INFO L273 TraceCheckUtils]: 13: Hoare triple {20287#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20280#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:00:22,116 INFO L273 TraceCheckUtils]: 12: Hoare triple {20287#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {20287#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:00:22,117 INFO L273 TraceCheckUtils]: 11: Hoare triple {20294#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {20287#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:00:22,118 INFO L273 TraceCheckUtils]: 10: Hoare triple {20294#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {20294#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:00:22,119 INFO L273 TraceCheckUtils]: 9: Hoare triple {20301#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {20294#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:00:22,119 INFO L273 TraceCheckUtils]: 8: Hoare triple {20301#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {20301#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:00:22,120 INFO L273 TraceCheckUtils]: 7: Hoare triple {20308#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {20301#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:00:22,121 INFO L273 TraceCheckUtils]: 6: Hoare triple {20308#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {20308#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:00:22,122 INFO L273 TraceCheckUtils]: 5: Hoare triple {20315#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {20308#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:00:22,123 INFO L273 TraceCheckUtils]: 4: Hoare triple {20315#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {20315#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:00:22,124 INFO L273 TraceCheckUtils]: 3: Hoare triple {20322#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {20315#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:00:22,124 INFO L273 TraceCheckUtils]: 2: Hoare triple {20322#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {20322#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-02-27 13:00:22,125 INFO L273 TraceCheckUtils]: 1: Hoare triple {20329#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {20322#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-02-27 13:00:22,126 INFO L273 TraceCheckUtils]: 0: Hoare triple {19738#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {20329#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-02-27 13:00:22,150 INFO L134 CoverageAnalysis]: Checked inductivity of 1482 backedges. 0 proven. 1482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:00:22,168 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 13:00:22,168 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41, 41] total 122 [2019-02-27 13:00:22,168 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 13:00:22,169 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 79 [2019-02-27 13:00:22,169 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 13:00:22,169 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 83 states. [2019-02-27 13:00:22,364 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 157 edges. 157 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 13:00:22,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 83 states [2019-02-27 13:00:22,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2019-02-27 13:00:22,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1894, Invalid=13358, Unknown=0, NotChecked=0, Total=15252 [2019-02-27 13:00:22,365 INFO L87 Difference]: Start difference. First operand 80 states and 80 transitions. Second operand 83 states. [2019-02-27 13:00:32,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:00:32,260 INFO L93 Difference]: Finished difference Result 84 states and 84 transitions. [2019-02-27 13:00:32,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2019-02-27 13:00:32,260 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 79 [2019-02-27 13:00:32,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 13:00:32,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-02-27 13:00:32,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 84 transitions. [2019-02-27 13:00:32,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-02-27 13:00:32,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 84 transitions. [2019-02-27 13:00:32,263 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 43 states and 84 transitions. [2019-02-27 13:00:32,357 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 84 edges. 84 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 13:00:32,359 INFO L225 Difference]: With dead ends: 84 [2019-02-27 13:00:32,359 INFO L226 Difference]: Without dead ends: 83 [2019-02-27 13:00:32,360 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3440 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=1894, Invalid=13358, Unknown=0, NotChecked=0, Total=15252 [2019-02-27 13:00:32,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-02-27 13:00:32,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 82. [2019-02-27 13:00:32,433 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 13:00:32,434 INFO L82 GeneralOperation]: Start isEquivalent. First operand 83 states. Second operand 82 states. [2019-02-27 13:00:32,434 INFO L74 IsIncluded]: Start isIncluded. First operand 83 states. Second operand 82 states. [2019-02-27 13:00:32,434 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 82 states. [2019-02-27 13:00:32,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:00:32,435 INFO L93 Difference]: Finished difference Result 83 states and 83 transitions. [2019-02-27 13:00:32,436 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 83 transitions. [2019-02-27 13:00:32,436 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 13:00:32,436 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 13:00:32,436 INFO L74 IsIncluded]: Start isIncluded. First operand 82 states. Second operand 83 states. [2019-02-27 13:00:32,436 INFO L87 Difference]: Start difference. First operand 82 states. Second operand 83 states. [2019-02-27 13:00:32,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:00:32,437 INFO L93 Difference]: Finished difference Result 83 states and 83 transitions. [2019-02-27 13:00:32,437 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 83 transitions. [2019-02-27 13:00:32,437 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 13:00:32,438 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 13:00:32,438 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 13:00:32,438 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 13:00:32,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-02-27 13:00:32,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 82 transitions. [2019-02-27 13:00:32,439 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 82 transitions. Word has length 79 [2019-02-27 13:00:32,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 13:00:32,439 INFO L480 AbstractCegarLoop]: Abstraction has 82 states and 82 transitions. [2019-02-27 13:00:32,439 INFO L481 AbstractCegarLoop]: Interpolant automaton has 83 states. [2019-02-27 13:00:32,439 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 82 transitions. [2019-02-27 13:00:32,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-02-27 13:00:32,439 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 13:00:32,439 INFO L402 BasicCegarLoop]: trace histogram [40, 39, 1, 1] [2019-02-27 13:00:32,439 INFO L423 AbstractCegarLoop]: === Iteration 40 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 13:00:32,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 13:00:32,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1203886190, now seen corresponding path program 39 times [2019-02-27 13:00:32,440 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 13:00:32,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 13:00:32,440 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 13:00:32,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 13:00:32,441 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 13:00:32,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:00:32,890 WARN L181 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-02-27 13:00:34,924 INFO L273 TraceCheckUtils]: 0: Hoare triple {20745#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {20747#(and (or (<= main_n 39) (<= main_i 0)) (or (< 39 main_n) (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:34,925 INFO L273 TraceCheckUtils]: 1: Hoare triple {20747#(and (or (<= main_n 39) (<= main_i 0)) (or (< 39 main_n) (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20748#(and (or (<= main_n 39) (<= main_i 4)) (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2019-02-27 13:00:34,926 INFO L273 TraceCheckUtils]: 2: Hoare triple {20748#(and (or (<= main_n 39) (<= main_i 4)) (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume i <= n * 4; {20748#(and (or (<= main_n 39) (<= main_i 4)) (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2019-02-27 13:00:34,927 INFO L273 TraceCheckUtils]: 3: Hoare triple {20748#(and (or (<= main_n 39) (<= main_i 4)) (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume a[i] != 23;i := i + 4; {20749#(and (or (< 39 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 39)))} is VALID [2019-02-27 13:00:34,928 INFO L273 TraceCheckUtils]: 4: Hoare triple {20749#(and (or (< 39 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 39)))} assume i <= n * 4; {20749#(and (or (< 39 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 39)))} is VALID [2019-02-27 13:00:34,929 INFO L273 TraceCheckUtils]: 5: Hoare triple {20749#(and (or (< 39 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 39)))} assume a[i] != 23;i := i + 4; {20750#(and (or (< 39 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 12)))} is VALID [2019-02-27 13:00:34,929 INFO L273 TraceCheckUtils]: 6: Hoare triple {20750#(and (or (< 39 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 12)))} assume i <= n * 4; {20750#(and (or (< 39 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 12)))} is VALID [2019-02-27 13:00:34,930 INFO L273 TraceCheckUtils]: 7: Hoare triple {20750#(and (or (< 39 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {20751#(and (or (< 39 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 16)))} is VALID [2019-02-27 13:00:34,931 INFO L273 TraceCheckUtils]: 8: Hoare triple {20751#(and (or (< 39 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 16)))} assume i <= n * 4; {20751#(and (or (< 39 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 16)))} is VALID [2019-02-27 13:00:34,932 INFO L273 TraceCheckUtils]: 9: Hoare triple {20751#(and (or (< 39 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {20752#(and (or (< 39 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 20)))} is VALID [2019-02-27 13:00:34,933 INFO L273 TraceCheckUtils]: 10: Hoare triple {20752#(and (or (< 39 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 20)))} assume i <= n * 4; {20752#(and (or (< 39 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 20)))} is VALID [2019-02-27 13:00:34,934 INFO L273 TraceCheckUtils]: 11: Hoare triple {20752#(and (or (< 39 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 20)))} assume a[i] != 23;i := i + 4; {20753#(and (or (<= main_n 39) (<= main_i 24)) (or (< 39 main_n) (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:34,935 INFO L273 TraceCheckUtils]: 12: Hoare triple {20753#(and (or (<= main_n 39) (<= main_i 24)) (or (< 39 main_n) (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20753#(and (or (<= main_n 39) (<= main_i 24)) (or (< 39 main_n) (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:34,936 INFO L273 TraceCheckUtils]: 13: Hoare triple {20753#(and (or (<= main_n 39) (<= main_i 24)) (or (< 39 main_n) (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20754#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 39 main_n)) (or (<= main_n 39) (<= main_i 28)))} is VALID [2019-02-27 13:00:34,936 INFO L273 TraceCheckUtils]: 14: Hoare triple {20754#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 39 main_n)) (or (<= main_n 39) (<= main_i 28)))} assume i <= n * 4; {20754#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 39 main_n)) (or (<= main_n 39) (<= main_i 28)))} is VALID [2019-02-27 13:00:34,937 INFO L273 TraceCheckUtils]: 15: Hoare triple {20754#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 39 main_n)) (or (<= main_n 39) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {20755#(and (or (<= main_i 32) (<= main_n 39)) (or (< 39 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:34,938 INFO L273 TraceCheckUtils]: 16: Hoare triple {20755#(and (or (<= main_i 32) (<= main_n 39)) (or (< 39 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20755#(and (or (<= main_i 32) (<= main_n 39)) (or (< 39 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:34,939 INFO L273 TraceCheckUtils]: 17: Hoare triple {20755#(and (or (<= main_i 32) (<= main_n 39)) (or (< 39 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20756#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i))) (or (<= main_i 36) (<= main_n 39)))} is VALID [2019-02-27 13:00:34,940 INFO L273 TraceCheckUtils]: 18: Hoare triple {20756#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i))) (or (<= main_i 36) (<= main_n 39)))} assume i <= n * 4; {20756#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i))) (or (<= main_i 36) (<= main_n 39)))} is VALID [2019-02-27 13:00:34,941 INFO L273 TraceCheckUtils]: 19: Hoare triple {20756#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i))) (or (<= main_i 36) (<= main_n 39)))} assume a[i] != 23;i := i + 4; {20757#(and (or (<= main_i 40) (<= main_n 39)) (or (< 39 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:34,942 INFO L273 TraceCheckUtils]: 20: Hoare triple {20757#(and (or (<= main_i 40) (<= main_n 39)) (or (< 39 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20757#(and (or (<= main_i 40) (<= main_n 39)) (or (< 39 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:34,943 INFO L273 TraceCheckUtils]: 21: Hoare triple {20757#(and (or (<= main_i 40) (<= main_n 39)) (or (< 39 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20758#(and (or (< 39 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 44)))} is VALID [2019-02-27 13:00:34,944 INFO L273 TraceCheckUtils]: 22: Hoare triple {20758#(and (or (< 39 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 44)))} assume i <= n * 4; {20758#(and (or (< 39 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 44)))} is VALID [2019-02-27 13:00:34,945 INFO L273 TraceCheckUtils]: 23: Hoare triple {20758#(and (or (< 39 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 44)))} assume a[i] != 23;i := i + 4; {20759#(and (or (<= main_n 39) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 39 main_n)))} is VALID [2019-02-27 13:00:34,945 INFO L273 TraceCheckUtils]: 24: Hoare triple {20759#(and (or (<= main_n 39) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 39 main_n)))} assume i <= n * 4; {20759#(and (or (<= main_n 39) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 39 main_n)))} is VALID [2019-02-27 13:00:34,947 INFO L273 TraceCheckUtils]: 25: Hoare triple {20759#(and (or (<= main_n 39) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 39 main_n)))} assume a[i] != 23;i := i + 4; {20760#(and (or (< 39 main_n) (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 52) (<= main_n 39)))} is VALID [2019-02-27 13:00:34,947 INFO L273 TraceCheckUtils]: 26: Hoare triple {20760#(and (or (< 39 main_n) (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 52) (<= main_n 39)))} assume i <= n * 4; {20760#(and (or (< 39 main_n) (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 52) (<= main_n 39)))} is VALID [2019-02-27 13:00:34,948 INFO L273 TraceCheckUtils]: 27: Hoare triple {20760#(and (or (< 39 main_n) (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 52) (<= main_n 39)))} assume a[i] != 23;i := i + 4; {20761#(and (or (<= main_n 39) (<= main_i 56)) (or (< 39 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:34,949 INFO L273 TraceCheckUtils]: 28: Hoare triple {20761#(and (or (<= main_n 39) (<= main_i 56)) (or (< 39 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20761#(and (or (<= main_n 39) (<= main_i 56)) (or (< 39 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:34,950 INFO L273 TraceCheckUtils]: 29: Hoare triple {20761#(and (or (<= main_n 39) (<= main_i 56)) (or (< 39 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20762#(and (or (<= main_n 39) (<= main_i 60)) (or (< 39 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:34,951 INFO L273 TraceCheckUtils]: 30: Hoare triple {20762#(and (or (<= main_n 39) (<= main_i 60)) (or (< 39 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20762#(and (or (<= main_n 39) (<= main_i 60)) (or (< 39 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:34,952 INFO L273 TraceCheckUtils]: 31: Hoare triple {20762#(and (or (<= main_n 39) (<= main_i 60)) (or (< 39 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20763#(and (or (< 39 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 64)))} is VALID [2019-02-27 13:00:34,953 INFO L273 TraceCheckUtils]: 32: Hoare triple {20763#(and (or (< 39 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 64)))} assume i <= n * 4; {20763#(and (or (< 39 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 64)))} is VALID [2019-02-27 13:00:34,954 INFO L273 TraceCheckUtils]: 33: Hoare triple {20763#(and (or (< 39 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 64)))} assume a[i] != 23;i := i + 4; {20764#(and (or (<= main_n 39) (<= main_i 68)) (or (< 39 main_n) (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:34,954 INFO L273 TraceCheckUtils]: 34: Hoare triple {20764#(and (or (<= main_n 39) (<= main_i 68)) (or (< 39 main_n) (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20764#(and (or (<= main_n 39) (<= main_i 68)) (or (< 39 main_n) (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:34,955 INFO L273 TraceCheckUtils]: 35: Hoare triple {20764#(and (or (<= main_n 39) (<= main_i 68)) (or (< 39 main_n) (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20765#(and (or (<= main_n 39) (<= main_i 72)) (or (< 39 main_n) (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:34,956 INFO L273 TraceCheckUtils]: 36: Hoare triple {20765#(and (or (<= main_n 39) (<= main_i 72)) (or (< 39 main_n) (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20765#(and (or (<= main_n 39) (<= main_i 72)) (or (< 39 main_n) (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:34,957 INFO L273 TraceCheckUtils]: 37: Hoare triple {20765#(and (or (<= main_n 39) (<= main_i 72)) (or (< 39 main_n) (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20766#(and (or (<= main_i 76) (<= main_n 39)) (or (< 39 main_n) (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:34,958 INFO L273 TraceCheckUtils]: 38: Hoare triple {20766#(and (or (<= main_i 76) (<= main_n 39)) (or (< 39 main_n) (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20766#(and (or (<= main_i 76) (<= main_n 39)) (or (< 39 main_n) (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:34,959 INFO L273 TraceCheckUtils]: 39: Hoare triple {20766#(and (or (<= main_i 76) (<= main_n 39)) (or (< 39 main_n) (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20767#(and (or (<= main_n 39) (<= main_i 80)) (or (< 39 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:34,960 INFO L273 TraceCheckUtils]: 40: Hoare triple {20767#(and (or (<= main_n 39) (<= main_i 80)) (or (< 39 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20767#(and (or (<= main_n 39) (<= main_i 80)) (or (< 39 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:34,961 INFO L273 TraceCheckUtils]: 41: Hoare triple {20767#(and (or (<= main_n 39) (<= main_i 80)) (or (< 39 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20768#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i))) (or (<= main_n 39) (<= main_i 84)))} is VALID [2019-02-27 13:00:34,962 INFO L273 TraceCheckUtils]: 42: Hoare triple {20768#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i))) (or (<= main_n 39) (<= main_i 84)))} assume i <= n * 4; {20768#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i))) (or (<= main_n 39) (<= main_i 84)))} is VALID [2019-02-27 13:00:34,963 INFO L273 TraceCheckUtils]: 43: Hoare triple {20768#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i))) (or (<= main_n 39) (<= main_i 84)))} assume a[i] != 23;i := i + 4; {20769#(and (or (<= main_i 88) (<= main_n 39)) (or (< 39 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:34,963 INFO L273 TraceCheckUtils]: 44: Hoare triple {20769#(and (or (<= main_i 88) (<= main_n 39)) (or (< 39 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20769#(and (or (<= main_i 88) (<= main_n 39)) (or (< 39 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:34,964 INFO L273 TraceCheckUtils]: 45: Hoare triple {20769#(and (or (<= main_i 88) (<= main_n 39)) (or (< 39 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20770#(and (or (< 39 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 39)))} is VALID [2019-02-27 13:00:34,965 INFO L273 TraceCheckUtils]: 46: Hoare triple {20770#(and (or (< 39 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 39)))} assume i <= n * 4; {20770#(and (or (< 39 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 39)))} is VALID [2019-02-27 13:00:34,966 INFO L273 TraceCheckUtils]: 47: Hoare triple {20770#(and (or (< 39 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 39)))} assume a[i] != 23;i := i + 4; {20771#(and (or (< 39 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 39)))} is VALID [2019-02-27 13:00:34,967 INFO L273 TraceCheckUtils]: 48: Hoare triple {20771#(and (or (< 39 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 39)))} assume i <= n * 4; {20771#(and (or (< 39 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 39)))} is VALID [2019-02-27 13:00:34,968 INFO L273 TraceCheckUtils]: 49: Hoare triple {20771#(and (or (< 39 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 39)))} assume a[i] != 23;i := i + 4; {20772#(and (or (< 39 main_n) (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 100) (<= main_n 39)))} is VALID [2019-02-27 13:00:34,969 INFO L273 TraceCheckUtils]: 50: Hoare triple {20772#(and (or (< 39 main_n) (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 100) (<= main_n 39)))} assume i <= n * 4; {20772#(and (or (< 39 main_n) (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 100) (<= main_n 39)))} is VALID [2019-02-27 13:00:34,970 INFO L273 TraceCheckUtils]: 51: Hoare triple {20772#(and (or (< 39 main_n) (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 100) (<= main_n 39)))} assume a[i] != 23;i := i + 4; {20773#(and (or (< 39 main_n) (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 104) (<= main_n 39)))} is VALID [2019-02-27 13:00:34,971 INFO L273 TraceCheckUtils]: 52: Hoare triple {20773#(and (or (< 39 main_n) (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 104) (<= main_n 39)))} assume i <= n * 4; {20773#(and (or (< 39 main_n) (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 104) (<= main_n 39)))} is VALID [2019-02-27 13:00:34,972 INFO L273 TraceCheckUtils]: 53: Hoare triple {20773#(and (or (< 39 main_n) (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 104) (<= main_n 39)))} assume a[i] != 23;i := i + 4; {20774#(and (or (<= main_n 39) (<= main_i 108)) (or (< 39 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:34,973 INFO L273 TraceCheckUtils]: 54: Hoare triple {20774#(and (or (<= main_n 39) (<= main_i 108)) (or (< 39 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20774#(and (or (<= main_n 39) (<= main_i 108)) (or (< 39 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:34,974 INFO L273 TraceCheckUtils]: 55: Hoare triple {20774#(and (or (<= main_n 39) (<= main_i 108)) (or (< 39 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20775#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 39) (<= main_i 112)))} is VALID [2019-02-27 13:00:34,975 INFO L273 TraceCheckUtils]: 56: Hoare triple {20775#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 39) (<= main_i 112)))} assume i <= n * 4; {20775#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 39) (<= main_i 112)))} is VALID [2019-02-27 13:00:34,976 INFO L273 TraceCheckUtils]: 57: Hoare triple {20775#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 39) (<= main_i 112)))} assume a[i] != 23;i := i + 4; {20776#(and (or (< 39 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 116)))} is VALID [2019-02-27 13:00:34,976 INFO L273 TraceCheckUtils]: 58: Hoare triple {20776#(and (or (< 39 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 116)))} assume i <= n * 4; {20776#(and (or (< 39 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 116)))} is VALID [2019-02-27 13:00:34,977 INFO L273 TraceCheckUtils]: 59: Hoare triple {20776#(and (or (< 39 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 116)))} assume a[i] != 23;i := i + 4; {20777#(and (or (< 39 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 120)))} is VALID [2019-02-27 13:00:34,978 INFO L273 TraceCheckUtils]: 60: Hoare triple {20777#(and (or (< 39 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 120)))} assume i <= n * 4; {20777#(and (or (< 39 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 120)))} is VALID [2019-02-27 13:00:34,979 INFO L273 TraceCheckUtils]: 61: Hoare triple {20777#(and (or (< 39 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 120)))} assume a[i] != 23;i := i + 4; {20778#(and (or (<= main_n 39) (<= main_i 124)) (or (< 39 main_n) (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:34,980 INFO L273 TraceCheckUtils]: 62: Hoare triple {20778#(and (or (<= main_n 39) (<= main_i 124)) (or (< 39 main_n) (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20778#(and (or (<= main_n 39) (<= main_i 124)) (or (< 39 main_n) (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:34,981 INFO L273 TraceCheckUtils]: 63: Hoare triple {20778#(and (or (<= main_n 39) (<= main_i 124)) (or (< 39 main_n) (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20779#(and (or (<= main_n 39) (<= main_i 128)) (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} is VALID [2019-02-27 13:00:34,982 INFO L273 TraceCheckUtils]: 64: Hoare triple {20779#(and (or (<= main_n 39) (<= main_i 128)) (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} assume i <= n * 4; {20779#(and (or (<= main_n 39) (<= main_i 128)) (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} is VALID [2019-02-27 13:00:34,983 INFO L273 TraceCheckUtils]: 65: Hoare triple {20779#(and (or (<= main_n 39) (<= main_i 128)) (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} assume a[i] != 23;i := i + 4; {20780#(and (or (<= main_i 132) (<= main_n 39)) (or (< 39 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:34,984 INFO L273 TraceCheckUtils]: 66: Hoare triple {20780#(and (or (<= main_i 132) (<= main_n 39)) (or (< 39 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20780#(and (or (<= main_i 132) (<= main_n 39)) (or (< 39 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:34,985 INFO L273 TraceCheckUtils]: 67: Hoare triple {20780#(and (or (<= main_i 132) (<= main_n 39)) (or (< 39 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20781#(and (or (<= main_i 136) (<= main_n 39)) (or (< 39 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:34,985 INFO L273 TraceCheckUtils]: 68: Hoare triple {20781#(and (or (<= main_i 136) (<= main_n 39)) (or (< 39 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20781#(and (or (<= main_i 136) (<= main_n 39)) (or (< 39 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:34,987 INFO L273 TraceCheckUtils]: 69: Hoare triple {20781#(and (or (<= main_i 136) (<= main_n 39)) (or (< 39 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20782#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 39) (<= main_i 140)))} is VALID [2019-02-27 13:00:34,987 INFO L273 TraceCheckUtils]: 70: Hoare triple {20782#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 39) (<= main_i 140)))} assume i <= n * 4; {20782#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 39) (<= main_i 140)))} is VALID [2019-02-27 13:00:34,988 INFO L273 TraceCheckUtils]: 71: Hoare triple {20782#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 39) (<= main_i 140)))} assume a[i] != 23;i := i + 4; {20783#(and (or (<= main_n 39) (<= main_i 144)) (or (< 39 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:34,989 INFO L273 TraceCheckUtils]: 72: Hoare triple {20783#(and (or (<= main_n 39) (<= main_i 144)) (or (< 39 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20783#(and (or (<= main_n 39) (<= main_i 144)) (or (< 39 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:34,990 INFO L273 TraceCheckUtils]: 73: Hoare triple {20783#(and (or (<= main_n 39) (<= main_i 144)) (or (< 39 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20784#(and (or (<= main_n 39) (<= main_i 148)) (or (< 39 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:34,991 INFO L273 TraceCheckUtils]: 74: Hoare triple {20784#(and (or (<= main_n 39) (<= main_i 148)) (or (< 39 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20784#(and (or (<= main_n 39) (<= main_i 148)) (or (< 39 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:00:34,992 INFO L273 TraceCheckUtils]: 75: Hoare triple {20784#(and (or (<= main_n 39) (<= main_i 148)) (or (< 39 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20785#(and (or (< 39 main_n) (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 152)))} is VALID [2019-02-27 13:00:34,993 INFO L273 TraceCheckUtils]: 76: Hoare triple {20785#(and (or (< 39 main_n) (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 152)))} assume i <= n * 4; {20785#(and (or (< 39 main_n) (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 152)))} is VALID [2019-02-27 13:00:34,994 INFO L273 TraceCheckUtils]: 77: Hoare triple {20785#(and (or (< 39 main_n) (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 152)))} assume a[i] != 23;i := i + 4; {20786#(and (or (< 39 main_n) (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i))) (or (<= main_i 156) (<= main_n 39)))} is VALID [2019-02-27 13:00:34,995 INFO L273 TraceCheckUtils]: 78: Hoare triple {20786#(and (or (< 39 main_n) (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i))) (or (<= main_i 156) (<= main_n 39)))} assume i <= n * 4; {20787#(and (or (< 39 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 156))} is VALID [2019-02-27 13:00:34,996 INFO L273 TraceCheckUtils]: 79: Hoare triple {20787#(and (or (< 39 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 156))} assume a[i] != 23;i := i + 4; {20788#(and (<= 40 main_n) (<= main_i 160))} is VALID [2019-02-27 13:00:34,996 INFO L273 TraceCheckUtils]: 80: Hoare triple {20788#(and (<= 40 main_n) (<= main_i 160))} assume !(i <= n * 4); {20746#false} is VALID [2019-02-27 13:00:35,025 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 0 proven. 1560 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:00:35,025 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 13:00:35,025 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 13:00:35,025 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 13:00:35,025 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 13:00:35,025 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 13:00:35,025 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 13:00:35,034 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-27 13:00:35,034 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-27 13:00:35,059 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-27 13:00:35,060 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 13:00:35,061 WARN L254 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 85 conjunts are in the unsatisfiable core [2019-02-27 13:00:35,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:00:35,074 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 13:00:35,083 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 13:00:35,086 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 13:00:35,094 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 13:00:35,094 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 13:00:35,095 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 13:00:35,095 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_43]. (and (= main_i 0) (= (store v_main_a_43 (* 4 main_n) 23) main_a)) [2019-02-27 13:00:35,095 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 13:00:37,946 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 13:00:37,948 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 13:00:37,954 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 13:00:37,954 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 13:00:37,956 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 13:00:37,957 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= (select main_a 156) 23)) (<= 156 .cse0) (= 23 (select main_a .cse0)) (<= main_i 160))) [2019-02-27 13:00:37,957 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 156 .cse0) (not (= 156 .cse0)) (<= main_i 160))) [2019-02-27 13:00:38,005 INFO L273 TraceCheckUtils]: 0: Hoare triple {20745#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {20792#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,006 INFO L273 TraceCheckUtils]: 1: Hoare triple {20792#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20796#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 13:00:38,006 INFO L273 TraceCheckUtils]: 2: Hoare triple {20796#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {20796#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 13:00:38,006 INFO L273 TraceCheckUtils]: 3: Hoare triple {20796#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {20803#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,007 INFO L273 TraceCheckUtils]: 4: Hoare triple {20803#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20803#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,007 INFO L273 TraceCheckUtils]: 5: Hoare triple {20803#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20810#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 13:00:38,008 INFO L273 TraceCheckUtils]: 6: Hoare triple {20810#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {20810#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 13:00:38,009 INFO L273 TraceCheckUtils]: 7: Hoare triple {20810#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {20817#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,010 INFO L273 TraceCheckUtils]: 8: Hoare triple {20817#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20817#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,010 INFO L273 TraceCheckUtils]: 9: Hoare triple {20817#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20824#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,011 INFO L273 TraceCheckUtils]: 10: Hoare triple {20824#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20824#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,012 INFO L273 TraceCheckUtils]: 11: Hoare triple {20824#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20831#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,012 INFO L273 TraceCheckUtils]: 12: Hoare triple {20831#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20831#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,013 INFO L273 TraceCheckUtils]: 13: Hoare triple {20831#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20838#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,014 INFO L273 TraceCheckUtils]: 14: Hoare triple {20838#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20838#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,014 INFO L273 TraceCheckUtils]: 15: Hoare triple {20838#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20845#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,015 INFO L273 TraceCheckUtils]: 16: Hoare triple {20845#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20845#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,016 INFO L273 TraceCheckUtils]: 17: Hoare triple {20845#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20852#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,016 INFO L273 TraceCheckUtils]: 18: Hoare triple {20852#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20852#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,017 INFO L273 TraceCheckUtils]: 19: Hoare triple {20852#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20859#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,018 INFO L273 TraceCheckUtils]: 20: Hoare triple {20859#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20859#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,018 INFO L273 TraceCheckUtils]: 21: Hoare triple {20859#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20866#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,019 INFO L273 TraceCheckUtils]: 22: Hoare triple {20866#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20866#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,020 INFO L273 TraceCheckUtils]: 23: Hoare triple {20866#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20873#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,020 INFO L273 TraceCheckUtils]: 24: Hoare triple {20873#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20873#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,021 INFO L273 TraceCheckUtils]: 25: Hoare triple {20873#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20880#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,022 INFO L273 TraceCheckUtils]: 26: Hoare triple {20880#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20880#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,022 INFO L273 TraceCheckUtils]: 27: Hoare triple {20880#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20887#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,023 INFO L273 TraceCheckUtils]: 28: Hoare triple {20887#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20887#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,024 INFO L273 TraceCheckUtils]: 29: Hoare triple {20887#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20894#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,025 INFO L273 TraceCheckUtils]: 30: Hoare triple {20894#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20894#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,025 INFO L273 TraceCheckUtils]: 31: Hoare triple {20894#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20901#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,026 INFO L273 TraceCheckUtils]: 32: Hoare triple {20901#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20901#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,027 INFO L273 TraceCheckUtils]: 33: Hoare triple {20901#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20908#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,027 INFO L273 TraceCheckUtils]: 34: Hoare triple {20908#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20908#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,028 INFO L273 TraceCheckUtils]: 35: Hoare triple {20908#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20915#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,029 INFO L273 TraceCheckUtils]: 36: Hoare triple {20915#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20915#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,030 INFO L273 TraceCheckUtils]: 37: Hoare triple {20915#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20922#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,030 INFO L273 TraceCheckUtils]: 38: Hoare triple {20922#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20922#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,031 INFO L273 TraceCheckUtils]: 39: Hoare triple {20922#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20929#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 13:00:38,032 INFO L273 TraceCheckUtils]: 40: Hoare triple {20929#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {20929#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 13:00:38,032 INFO L273 TraceCheckUtils]: 41: Hoare triple {20929#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {20936#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,033 INFO L273 TraceCheckUtils]: 42: Hoare triple {20936#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20936#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,034 INFO L273 TraceCheckUtils]: 43: Hoare triple {20936#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20943#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,034 INFO L273 TraceCheckUtils]: 44: Hoare triple {20943#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20943#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,035 INFO L273 TraceCheckUtils]: 45: Hoare triple {20943#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20950#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,036 INFO L273 TraceCheckUtils]: 46: Hoare triple {20950#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20950#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,037 INFO L273 TraceCheckUtils]: 47: Hoare triple {20950#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20957#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,037 INFO L273 TraceCheckUtils]: 48: Hoare triple {20957#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20957#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,038 INFO L273 TraceCheckUtils]: 49: Hoare triple {20957#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20964#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,039 INFO L273 TraceCheckUtils]: 50: Hoare triple {20964#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20964#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,039 INFO L273 TraceCheckUtils]: 51: Hoare triple {20964#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20971#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,040 INFO L273 TraceCheckUtils]: 52: Hoare triple {20971#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20971#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,041 INFO L273 TraceCheckUtils]: 53: Hoare triple {20971#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20978#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,041 INFO L273 TraceCheckUtils]: 54: Hoare triple {20978#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20978#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,042 INFO L273 TraceCheckUtils]: 55: Hoare triple {20978#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20985#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,043 INFO L273 TraceCheckUtils]: 56: Hoare triple {20985#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20985#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,043 INFO L273 TraceCheckUtils]: 57: Hoare triple {20985#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20992#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,044 INFO L273 TraceCheckUtils]: 58: Hoare triple {20992#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20992#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,045 INFO L273 TraceCheckUtils]: 59: Hoare triple {20992#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20999#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,045 INFO L273 TraceCheckUtils]: 60: Hoare triple {20999#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20999#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,046 INFO L273 TraceCheckUtils]: 61: Hoare triple {20999#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21006#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,047 INFO L273 TraceCheckUtils]: 62: Hoare triple {21006#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21006#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,047 INFO L273 TraceCheckUtils]: 63: Hoare triple {21006#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21013#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,048 INFO L273 TraceCheckUtils]: 64: Hoare triple {21013#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21013#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,049 INFO L273 TraceCheckUtils]: 65: Hoare triple {21013#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21020#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,049 INFO L273 TraceCheckUtils]: 66: Hoare triple {21020#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21020#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,050 INFO L273 TraceCheckUtils]: 67: Hoare triple {21020#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21027#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,051 INFO L273 TraceCheckUtils]: 68: Hoare triple {21027#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21027#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,052 INFO L273 TraceCheckUtils]: 69: Hoare triple {21027#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21034#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 13:00:38,052 INFO L273 TraceCheckUtils]: 70: Hoare triple {21034#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {21034#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 13:00:38,053 INFO L273 TraceCheckUtils]: 71: Hoare triple {21034#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {21041#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,054 INFO L273 TraceCheckUtils]: 72: Hoare triple {21041#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21041#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,054 INFO L273 TraceCheckUtils]: 73: Hoare triple {21041#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21048#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,055 INFO L273 TraceCheckUtils]: 74: Hoare triple {21048#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21048#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,056 INFO L273 TraceCheckUtils]: 75: Hoare triple {21048#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21055#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,056 INFO L273 TraceCheckUtils]: 76: Hoare triple {21055#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21055#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,057 INFO L273 TraceCheckUtils]: 77: Hoare triple {21055#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21062#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,058 INFO L273 TraceCheckUtils]: 78: Hoare triple {21062#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21066#(and (= main_i 156) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:38,059 INFO L273 TraceCheckUtils]: 79: Hoare triple {21066#(and (= main_i 156) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20788#(and (<= 40 main_n) (<= main_i 160))} is VALID [2019-02-27 13:00:38,059 INFO L273 TraceCheckUtils]: 80: Hoare triple {20788#(and (<= 40 main_n) (<= main_i 160))} assume !(i <= n * 4); {20746#false} is VALID [2019-02-27 13:00:38,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 0 proven. 1560 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:00:38,078 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 13:00:42,922 INFO L273 TraceCheckUtils]: 80: Hoare triple {21073#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {20746#false} is VALID [2019-02-27 13:00:42,923 INFO L273 TraceCheckUtils]: 79: Hoare triple {21077#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {21073#(<= main_i (* 4 main_n))} is VALID [2019-02-27 13:00:42,923 INFO L273 TraceCheckUtils]: 78: Hoare triple {21081#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {21077#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:00:42,924 INFO L273 TraceCheckUtils]: 77: Hoare triple {21085#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {21081#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:00:42,924 INFO L273 TraceCheckUtils]: 76: Hoare triple {21085#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {21085#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:00:42,925 INFO L273 TraceCheckUtils]: 75: Hoare triple {21092#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {21085#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:00:42,926 INFO L273 TraceCheckUtils]: 74: Hoare triple {21092#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {21092#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:00:42,927 INFO L273 TraceCheckUtils]: 73: Hoare triple {21099#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {21092#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:00:42,927 INFO L273 TraceCheckUtils]: 72: Hoare triple {21099#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {21099#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:00:42,928 INFO L273 TraceCheckUtils]: 71: Hoare triple {21106#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {21099#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:00:42,929 INFO L273 TraceCheckUtils]: 70: Hoare triple {21106#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {21106#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:00:42,930 INFO L273 TraceCheckUtils]: 69: Hoare triple {21113#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21106#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:00:42,931 INFO L273 TraceCheckUtils]: 68: Hoare triple {21113#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {21113#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:00:42,932 INFO L273 TraceCheckUtils]: 67: Hoare triple {21120#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {21113#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:00:42,932 INFO L273 TraceCheckUtils]: 66: Hoare triple {21120#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {21120#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:00:42,933 INFO L273 TraceCheckUtils]: 65: Hoare triple {21127#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21120#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:00:42,934 INFO L273 TraceCheckUtils]: 64: Hoare triple {21127#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {21127#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:00:42,935 INFO L273 TraceCheckUtils]: 63: Hoare triple {21134#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21127#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:00:42,936 INFO L273 TraceCheckUtils]: 62: Hoare triple {21134#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {21134#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:00:42,937 INFO L273 TraceCheckUtils]: 61: Hoare triple {21141#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21134#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:00:42,937 INFO L273 TraceCheckUtils]: 60: Hoare triple {21141#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {21141#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:00:42,938 INFO L273 TraceCheckUtils]: 59: Hoare triple {21148#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {21141#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:00:42,939 INFO L273 TraceCheckUtils]: 58: Hoare triple {21148#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {21148#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:00:42,940 INFO L273 TraceCheckUtils]: 57: Hoare triple {21155#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21148#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:00:42,941 INFO L273 TraceCheckUtils]: 56: Hoare triple {21155#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {21155#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:00:42,942 INFO L273 TraceCheckUtils]: 55: Hoare triple {21162#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21155#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:00:42,942 INFO L273 TraceCheckUtils]: 54: Hoare triple {21162#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {21162#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:00:42,943 INFO L273 TraceCheckUtils]: 53: Hoare triple {21169#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {21162#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:00:42,944 INFO L273 TraceCheckUtils]: 52: Hoare triple {21169#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {21169#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:00:42,945 INFO L273 TraceCheckUtils]: 51: Hoare triple {21176#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21169#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:00:42,946 INFO L273 TraceCheckUtils]: 50: Hoare triple {21176#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {21176#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:00:42,947 INFO L273 TraceCheckUtils]: 49: Hoare triple {21183#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {21176#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:00:42,947 INFO L273 TraceCheckUtils]: 48: Hoare triple {21183#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {21183#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:00:42,948 INFO L273 TraceCheckUtils]: 47: Hoare triple {21190#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {21183#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:00:42,950 INFO L273 TraceCheckUtils]: 46: Hoare triple {21190#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {21190#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:00:42,951 INFO L273 TraceCheckUtils]: 45: Hoare triple {21197#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {21190#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:00:42,952 INFO L273 TraceCheckUtils]: 44: Hoare triple {21197#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {21197#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:00:42,952 INFO L273 TraceCheckUtils]: 43: Hoare triple {21204#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {21197#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:00:42,953 INFO L273 TraceCheckUtils]: 42: Hoare triple {21204#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {21204#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:00:42,953 INFO L273 TraceCheckUtils]: 41: Hoare triple {21211#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {21204#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:00:42,954 INFO L273 TraceCheckUtils]: 40: Hoare triple {21211#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {21211#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:00:42,955 INFO L273 TraceCheckUtils]: 39: Hoare triple {21218#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {21211#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:00:42,956 INFO L273 TraceCheckUtils]: 38: Hoare triple {21218#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {21218#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:00:42,957 INFO L273 TraceCheckUtils]: 37: Hoare triple {21225#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21218#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:00:42,957 INFO L273 TraceCheckUtils]: 36: Hoare triple {21225#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {21225#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:00:42,958 INFO L273 TraceCheckUtils]: 35: Hoare triple {21232#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21225#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:00:42,959 INFO L273 TraceCheckUtils]: 34: Hoare triple {21232#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {21232#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:00:42,960 INFO L273 TraceCheckUtils]: 33: Hoare triple {21239#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21232#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:00:42,961 INFO L273 TraceCheckUtils]: 32: Hoare triple {21239#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {21239#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:00:42,962 INFO L273 TraceCheckUtils]: 31: Hoare triple {21246#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {21239#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:00:42,962 INFO L273 TraceCheckUtils]: 30: Hoare triple {21246#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {21246#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:00:42,963 INFO L273 TraceCheckUtils]: 29: Hoare triple {21253#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21246#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:00:42,964 INFO L273 TraceCheckUtils]: 28: Hoare triple {21253#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {21253#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:00:42,965 INFO L273 TraceCheckUtils]: 27: Hoare triple {21260#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {21253#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:00:42,965 INFO L273 TraceCheckUtils]: 26: Hoare triple {21260#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {21260#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:00:42,966 INFO L273 TraceCheckUtils]: 25: Hoare triple {21267#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {21260#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:00:42,967 INFO L273 TraceCheckUtils]: 24: Hoare triple {21267#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {21267#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:00:42,968 INFO L273 TraceCheckUtils]: 23: Hoare triple {21274#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {21267#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:00:42,968 INFO L273 TraceCheckUtils]: 22: Hoare triple {21274#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {21274#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:00:42,969 INFO L273 TraceCheckUtils]: 21: Hoare triple {21281#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21274#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:00:42,970 INFO L273 TraceCheckUtils]: 20: Hoare triple {21281#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {21281#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:00:42,971 INFO L273 TraceCheckUtils]: 19: Hoare triple {21288#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21281#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:00:42,972 INFO L273 TraceCheckUtils]: 18: Hoare triple {21288#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {21288#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:00:42,973 INFO L273 TraceCheckUtils]: 17: Hoare triple {21295#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {21288#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:00:42,973 INFO L273 TraceCheckUtils]: 16: Hoare triple {21295#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {21295#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:00:42,974 INFO L273 TraceCheckUtils]: 15: Hoare triple {21302#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21295#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:00:42,975 INFO L273 TraceCheckUtils]: 14: Hoare triple {21302#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {21302#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:00:42,976 INFO L273 TraceCheckUtils]: 13: Hoare triple {21309#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {21302#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:00:42,976 INFO L273 TraceCheckUtils]: 12: Hoare triple {21309#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {21309#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:00:42,978 INFO L273 TraceCheckUtils]: 11: Hoare triple {21316#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {21309#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:00:42,978 INFO L273 TraceCheckUtils]: 10: Hoare triple {21316#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {21316#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:00:42,979 INFO L273 TraceCheckUtils]: 9: Hoare triple {21323#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {21316#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:00:42,980 INFO L273 TraceCheckUtils]: 8: Hoare triple {21323#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {21323#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:00:42,981 INFO L273 TraceCheckUtils]: 7: Hoare triple {21330#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {21323#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:00:42,981 INFO L273 TraceCheckUtils]: 6: Hoare triple {21330#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {21330#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:00:42,982 INFO L273 TraceCheckUtils]: 5: Hoare triple {21337#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {21330#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:00:42,983 INFO L273 TraceCheckUtils]: 4: Hoare triple {21337#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {21337#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-02-27 13:00:42,984 INFO L273 TraceCheckUtils]: 3: Hoare triple {21344#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {21337#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-02-27 13:00:42,985 INFO L273 TraceCheckUtils]: 2: Hoare triple {21344#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {21344#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-02-27 13:00:42,986 INFO L273 TraceCheckUtils]: 1: Hoare triple {21351#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {21344#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-02-27 13:00:42,987 INFO L273 TraceCheckUtils]: 0: Hoare triple {20745#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {21351#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-02-27 13:00:43,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 0 proven. 1560 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:00:43,029 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 13:00:43,029 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42, 42] total 125 [2019-02-27 13:00:43,029 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 13:00:43,029 INFO L78 Accepts]: Start accepts. Automaton has 85 states. Word has length 81 [2019-02-27 13:00:43,030 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 13:00:43,030 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 85 states. [2019-02-27 13:00:43,231 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 161 edges. 161 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 13:00:43,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 85 states [2019-02-27 13:00:43,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2019-02-27 13:00:43,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1982, Invalid=14020, Unknown=0, NotChecked=0, Total=16002 [2019-02-27 13:00:43,233 INFO L87 Difference]: Start difference. First operand 82 states and 82 transitions. Second operand 85 states. [2019-02-27 13:00:52,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:00:52,764 INFO L93 Difference]: Finished difference Result 86 states and 86 transitions. [2019-02-27 13:00:52,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-02-27 13:00:52,765 INFO L78 Accepts]: Start accepts. Automaton has 85 states. Word has length 81 [2019-02-27 13:00:52,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 13:00:52,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-02-27 13:00:52,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 86 transitions. [2019-02-27 13:00:52,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-02-27 13:00:52,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 86 transitions. [2019-02-27 13:00:52,767 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 44 states and 86 transitions. [2019-02-27 13:00:52,864 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 86 edges. 86 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 13:00:52,866 INFO L225 Difference]: With dead ends: 86 [2019-02-27 13:00:52,866 INFO L226 Difference]: Without dead ends: 85 [2019-02-27 13:00:52,867 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3608 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=1982, Invalid=14020, Unknown=0, NotChecked=0, Total=16002 [2019-02-27 13:00:52,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-02-27 13:00:52,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 84. [2019-02-27 13:00:52,982 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 13:00:52,982 INFO L82 GeneralOperation]: Start isEquivalent. First operand 85 states. Second operand 84 states. [2019-02-27 13:00:52,982 INFO L74 IsIncluded]: Start isIncluded. First operand 85 states. Second operand 84 states. [2019-02-27 13:00:52,982 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 84 states. [2019-02-27 13:00:52,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:00:52,983 INFO L93 Difference]: Finished difference Result 85 states and 85 transitions. [2019-02-27 13:00:52,983 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 85 transitions. [2019-02-27 13:00:52,983 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 13:00:52,984 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 13:00:52,984 INFO L74 IsIncluded]: Start isIncluded. First operand 84 states. Second operand 85 states. [2019-02-27 13:00:52,984 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 85 states. [2019-02-27 13:00:52,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:00:52,985 INFO L93 Difference]: Finished difference Result 85 states and 85 transitions. [2019-02-27 13:00:52,985 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 85 transitions. [2019-02-27 13:00:52,985 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 13:00:52,985 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 13:00:52,985 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 13:00:52,985 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 13:00:52,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2019-02-27 13:00:52,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 84 transitions. [2019-02-27 13:00:52,987 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 84 transitions. Word has length 81 [2019-02-27 13:00:52,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 13:00:52,987 INFO L480 AbstractCegarLoop]: Abstraction has 84 states and 84 transitions. [2019-02-27 13:00:52,987 INFO L481 AbstractCegarLoop]: Interpolant automaton has 85 states. [2019-02-27 13:00:52,987 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 84 transitions. [2019-02-27 13:00:52,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-02-27 13:00:52,987 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 13:00:52,988 INFO L402 BasicCegarLoop]: trace histogram [41, 40, 1, 1] [2019-02-27 13:00:52,988 INFO L423 AbstractCegarLoop]: === Iteration 41 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 13:00:52,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 13:00:52,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1588427056, now seen corresponding path program 40 times [2019-02-27 13:00:52,988 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 13:00:52,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 13:00:52,989 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 13:00:52,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 13:00:52,989 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 13:00:53,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:00:55,274 INFO L273 TraceCheckUtils]: 0: Hoare triple {21777#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {21779#(and (or (<= main_i 0) (<= main_n 40)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,276 INFO L273 TraceCheckUtils]: 1: Hoare triple {21779#(and (or (<= main_i 0) (<= main_n 40)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21780#(and (or (<= main_n 40) (<= main_i 4)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,276 INFO L273 TraceCheckUtils]: 2: Hoare triple {21780#(and (or (<= main_n 40) (<= main_i 4)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 40 main_n)))} assume i <= n * 4; {21780#(and (or (<= main_n 40) (<= main_i 4)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,277 INFO L273 TraceCheckUtils]: 3: Hoare triple {21780#(and (or (<= main_n 40) (<= main_i 4)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21781#(and (or (<= main_i 8) (<= main_n 40)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,278 INFO L273 TraceCheckUtils]: 4: Hoare triple {21781#(and (or (<= main_i 8) (<= main_n 40)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21781#(and (or (<= main_i 8) (<= main_n 40)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,279 INFO L273 TraceCheckUtils]: 5: Hoare triple {21781#(and (or (<= main_i 8) (<= main_n 40)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21782#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 12)))} is VALID [2019-02-27 13:00:55,280 INFO L273 TraceCheckUtils]: 6: Hoare triple {21782#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 12)))} assume i <= n * 4; {21782#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 12)))} is VALID [2019-02-27 13:00:55,281 INFO L273 TraceCheckUtils]: 7: Hoare triple {21782#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {21783#(and (or (<= main_n 40) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,282 INFO L273 TraceCheckUtils]: 8: Hoare triple {21783#(and (or (<= main_n 40) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21783#(and (or (<= main_n 40) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,283 INFO L273 TraceCheckUtils]: 9: Hoare triple {21783#(and (or (<= main_n 40) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21784#(and (or (<= main_i 20) (<= main_n 40)) (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,284 INFO L273 TraceCheckUtils]: 10: Hoare triple {21784#(and (or (<= main_i 20) (<= main_n 40)) (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21784#(and (or (<= main_i 20) (<= main_n 40)) (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,285 INFO L273 TraceCheckUtils]: 11: Hoare triple {21784#(and (or (<= main_i 20) (<= main_n 40)) (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21785#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 24) (<= main_n 40)))} is VALID [2019-02-27 13:00:55,285 INFO L273 TraceCheckUtils]: 12: Hoare triple {21785#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 24) (<= main_n 40)))} assume i <= n * 4; {21785#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 24) (<= main_n 40)))} is VALID [2019-02-27 13:00:55,287 INFO L273 TraceCheckUtils]: 13: Hoare triple {21785#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 24) (<= main_n 40)))} assume a[i] != 23;i := i + 4; {21786#(and (or (<= main_n 40) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,287 INFO L273 TraceCheckUtils]: 14: Hoare triple {21786#(and (or (<= main_n 40) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21786#(and (or (<= main_n 40) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,288 INFO L273 TraceCheckUtils]: 15: Hoare triple {21786#(and (or (<= main_n 40) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21787#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 32) (<= main_n 40)))} is VALID [2019-02-27 13:00:55,289 INFO L273 TraceCheckUtils]: 16: Hoare triple {21787#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 32) (<= main_n 40)))} assume i <= n * 4; {21787#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 32) (<= main_n 40)))} is VALID [2019-02-27 13:00:55,290 INFO L273 TraceCheckUtils]: 17: Hoare triple {21787#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 32) (<= main_n 40)))} assume a[i] != 23;i := i + 4; {21788#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 40 main_n)) (or (<= main_i 36) (<= main_n 40)))} is VALID [2019-02-27 13:00:55,291 INFO L273 TraceCheckUtils]: 18: Hoare triple {21788#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 40 main_n)) (or (<= main_i 36) (<= main_n 40)))} assume i <= n * 4; {21788#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 40 main_n)) (or (<= main_i 36) (<= main_n 40)))} is VALID [2019-02-27 13:00:55,292 INFO L273 TraceCheckUtils]: 19: Hoare triple {21788#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 40 main_n)) (or (<= main_i 36) (<= main_n 40)))} assume a[i] != 23;i := i + 4; {21789#(and (or (<= main_i 40) (<= main_n 40)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,293 INFO L273 TraceCheckUtils]: 20: Hoare triple {21789#(and (or (<= main_i 40) (<= main_n 40)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21789#(and (or (<= main_i 40) (<= main_n 40)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,294 INFO L273 TraceCheckUtils]: 21: Hoare triple {21789#(and (or (<= main_i 40) (<= main_n 40)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21790#(and (or (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 44)))} is VALID [2019-02-27 13:00:55,295 INFO L273 TraceCheckUtils]: 22: Hoare triple {21790#(and (or (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 44)))} assume i <= n * 4; {21790#(and (or (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 44)))} is VALID [2019-02-27 13:00:55,296 INFO L273 TraceCheckUtils]: 23: Hoare triple {21790#(and (or (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 44)))} assume a[i] != 23;i := i + 4; {21791#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 48)))} is VALID [2019-02-27 13:00:55,296 INFO L273 TraceCheckUtils]: 24: Hoare triple {21791#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 48)))} assume i <= n * 4; {21791#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 48)))} is VALID [2019-02-27 13:00:55,298 INFO L273 TraceCheckUtils]: 25: Hoare triple {21791#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 48)))} assume a[i] != 23;i := i + 4; {21792#(and (or (<= main_i 52) (<= main_n 40)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,298 INFO L273 TraceCheckUtils]: 26: Hoare triple {21792#(and (or (<= main_i 52) (<= main_n 40)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21792#(and (or (<= main_i 52) (<= main_n 40)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,299 INFO L273 TraceCheckUtils]: 27: Hoare triple {21792#(and (or (<= main_i 52) (<= main_n 40)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21793#(and (or (<= main_n 40) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,300 INFO L273 TraceCheckUtils]: 28: Hoare triple {21793#(and (or (<= main_n 40) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21793#(and (or (<= main_n 40) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,301 INFO L273 TraceCheckUtils]: 29: Hoare triple {21793#(and (or (<= main_n 40) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21794#(and (or (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 60) (<= main_n 40)))} is VALID [2019-02-27 13:00:55,302 INFO L273 TraceCheckUtils]: 30: Hoare triple {21794#(and (or (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 60) (<= main_n 40)))} assume i <= n * 4; {21794#(and (or (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 60) (<= main_n 40)))} is VALID [2019-02-27 13:00:55,303 INFO L273 TraceCheckUtils]: 31: Hoare triple {21794#(and (or (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 60) (<= main_n 40)))} assume a[i] != 23;i := i + 4; {21795#(and (or (<= main_i 64) (<= main_n 40)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,304 INFO L273 TraceCheckUtils]: 32: Hoare triple {21795#(and (or (<= main_i 64) (<= main_n 40)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21795#(and (or (<= main_i 64) (<= main_n 40)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,305 INFO L273 TraceCheckUtils]: 33: Hoare triple {21795#(and (or (<= main_i 64) (<= main_n 40)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21796#(and (or (<= main_n 40) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,306 INFO L273 TraceCheckUtils]: 34: Hoare triple {21796#(and (or (<= main_n 40) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21796#(and (or (<= main_n 40) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,307 INFO L273 TraceCheckUtils]: 35: Hoare triple {21796#(and (or (<= main_n 40) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21797#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 72)))} is VALID [2019-02-27 13:00:55,316 INFO L273 TraceCheckUtils]: 36: Hoare triple {21797#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 72)))} assume i <= n * 4; {21797#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 72)))} is VALID [2019-02-27 13:00:55,317 INFO L273 TraceCheckUtils]: 37: Hoare triple {21797#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 72)))} assume a[i] != 23;i := i + 4; {21798#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 76) (<= main_n 40)))} is VALID [2019-02-27 13:00:55,317 INFO L273 TraceCheckUtils]: 38: Hoare triple {21798#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 76) (<= main_n 40)))} assume i <= n * 4; {21798#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 76) (<= main_n 40)))} is VALID [2019-02-27 13:00:55,318 INFO L273 TraceCheckUtils]: 39: Hoare triple {21798#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 76) (<= main_n 40)))} assume a[i] != 23;i := i + 4; {21799#(and (or (<= main_n 40) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,319 INFO L273 TraceCheckUtils]: 40: Hoare triple {21799#(and (or (<= main_n 40) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21799#(and (or (<= main_n 40) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,319 INFO L273 TraceCheckUtils]: 41: Hoare triple {21799#(and (or (<= main_n 40) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21800#(and (or (<= main_i 84) (<= main_n 40)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,320 INFO L273 TraceCheckUtils]: 42: Hoare triple {21800#(and (or (<= main_i 84) (<= main_n 40)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 40 main_n)))} assume i <= n * 4; {21800#(and (or (<= main_i 84) (<= main_n 40)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,321 INFO L273 TraceCheckUtils]: 43: Hoare triple {21800#(and (or (<= main_i 84) (<= main_n 40)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21801#(and (or (<= main_i 88) (<= main_n 40)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,322 INFO L273 TraceCheckUtils]: 44: Hoare triple {21801#(and (or (<= main_i 88) (<= main_n 40)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21801#(and (or (<= main_i 88) (<= main_n 40)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,323 INFO L273 TraceCheckUtils]: 45: Hoare triple {21801#(and (or (<= main_i 88) (<= main_n 40)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21802#(and (or (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 92) (<= main_n 40)))} is VALID [2019-02-27 13:00:55,324 INFO L273 TraceCheckUtils]: 46: Hoare triple {21802#(and (or (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 92) (<= main_n 40)))} assume i <= n * 4; {21802#(and (or (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 92) (<= main_n 40)))} is VALID [2019-02-27 13:00:55,325 INFO L273 TraceCheckUtils]: 47: Hoare triple {21802#(and (or (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 92) (<= main_n 40)))} assume a[i] != 23;i := i + 4; {21803#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 96) (<= main_n 40)))} is VALID [2019-02-27 13:00:55,326 INFO L273 TraceCheckUtils]: 48: Hoare triple {21803#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 96) (<= main_n 40)))} assume i <= n * 4; {21803#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 96) (<= main_n 40)))} is VALID [2019-02-27 13:00:55,327 INFO L273 TraceCheckUtils]: 49: Hoare triple {21803#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 96) (<= main_n 40)))} assume a[i] != 23;i := i + 4; {21804#(and (or (<= main_i 100) (<= main_n 40)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,328 INFO L273 TraceCheckUtils]: 50: Hoare triple {21804#(and (or (<= main_i 100) (<= main_n 40)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21804#(and (or (<= main_i 100) (<= main_n 40)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,329 INFO L273 TraceCheckUtils]: 51: Hoare triple {21804#(and (or (<= main_i 100) (<= main_n 40)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21805#(and (or (<= main_i 104) (<= main_n 40)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,330 INFO L273 TraceCheckUtils]: 52: Hoare triple {21805#(and (or (<= main_i 104) (<= main_n 40)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21805#(and (or (<= main_i 104) (<= main_n 40)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,331 INFO L273 TraceCheckUtils]: 53: Hoare triple {21805#(and (or (<= main_i 104) (<= main_n 40)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21806#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 108)))} is VALID [2019-02-27 13:00:55,332 INFO L273 TraceCheckUtils]: 54: Hoare triple {21806#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 108)))} assume i <= n * 4; {21806#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 108)))} is VALID [2019-02-27 13:00:55,333 INFO L273 TraceCheckUtils]: 55: Hoare triple {21806#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 108)))} assume a[i] != 23;i := i + 4; {21807#(and (or (<= main_n 40) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,333 INFO L273 TraceCheckUtils]: 56: Hoare triple {21807#(and (or (<= main_n 40) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 40 main_n)))} assume i <= n * 4; {21807#(and (or (<= main_n 40) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,335 INFO L273 TraceCheckUtils]: 57: Hoare triple {21807#(and (or (<= main_n 40) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21808#(and (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 116) (<= main_n 40)))} is VALID [2019-02-27 13:00:55,335 INFO L273 TraceCheckUtils]: 58: Hoare triple {21808#(and (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 116) (<= main_n 40)))} assume i <= n * 4; {21808#(and (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 116) (<= main_n 40)))} is VALID [2019-02-27 13:00:55,336 INFO L273 TraceCheckUtils]: 59: Hoare triple {21808#(and (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 116) (<= main_n 40)))} assume a[i] != 23;i := i + 4; {21809#(and (or (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 120) (<= main_n 40)))} is VALID [2019-02-27 13:00:55,337 INFO L273 TraceCheckUtils]: 60: Hoare triple {21809#(and (or (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 120) (<= main_n 40)))} assume i <= n * 4; {21809#(and (or (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 120) (<= main_n 40)))} is VALID [2019-02-27 13:00:55,338 INFO L273 TraceCheckUtils]: 61: Hoare triple {21809#(and (or (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 120) (<= main_n 40)))} assume a[i] != 23;i := i + 4; {21810#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 124)))} is VALID [2019-02-27 13:00:55,339 INFO L273 TraceCheckUtils]: 62: Hoare triple {21810#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 124)))} assume i <= n * 4; {21810#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 124)))} is VALID [2019-02-27 13:00:55,340 INFO L273 TraceCheckUtils]: 63: Hoare triple {21810#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 124)))} assume a[i] != 23;i := i + 4; {21811#(and (or (<= main_n 40) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,341 INFO L273 TraceCheckUtils]: 64: Hoare triple {21811#(and (or (<= main_n 40) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 40 main_n)))} assume i <= n * 4; {21811#(and (or (<= main_n 40) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,342 INFO L273 TraceCheckUtils]: 65: Hoare triple {21811#(and (or (<= main_n 40) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21812#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 132) (<= main_n 40)))} is VALID [2019-02-27 13:00:55,343 INFO L273 TraceCheckUtils]: 66: Hoare triple {21812#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 132) (<= main_n 40)))} assume i <= n * 4; {21812#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 132) (<= main_n 40)))} is VALID [2019-02-27 13:00:55,344 INFO L273 TraceCheckUtils]: 67: Hoare triple {21812#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 132) (<= main_n 40)))} assume a[i] != 23;i := i + 4; {21813#(and (or (<= main_i 136) (<= main_n 40)) (or (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,345 INFO L273 TraceCheckUtils]: 68: Hoare triple {21813#(and (or (<= main_i 136) (<= main_n 40)) (or (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21813#(and (or (<= main_i 136) (<= main_n 40)) (or (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,346 INFO L273 TraceCheckUtils]: 69: Hoare triple {21813#(and (or (<= main_i 136) (<= main_n 40)) (or (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21814#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i)) (< 40 main_n)) (or (<= main_n 40) (<= main_i 140)))} is VALID [2019-02-27 13:00:55,347 INFO L273 TraceCheckUtils]: 70: Hoare triple {21814#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i)) (< 40 main_n)) (or (<= main_n 40) (<= main_i 140)))} assume i <= n * 4; {21814#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i)) (< 40 main_n)) (or (<= main_n 40) (<= main_i 140)))} is VALID [2019-02-27 13:00:55,348 INFO L273 TraceCheckUtils]: 71: Hoare triple {21814#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i)) (< 40 main_n)) (or (<= main_n 40) (<= main_i 140)))} assume a[i] != 23;i := i + 4; {21815#(and (or (<= main_n 40) (<= main_i 144)) (or (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,348 INFO L273 TraceCheckUtils]: 72: Hoare triple {21815#(and (or (<= main_n 40) (<= main_i 144)) (or (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21815#(and (or (<= main_n 40) (<= main_i 144)) (or (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,349 INFO L273 TraceCheckUtils]: 73: Hoare triple {21815#(and (or (<= main_n 40) (<= main_i 144)) (or (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21816#(and (or (< 40 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 40) (<= main_i 148)))} is VALID [2019-02-27 13:00:55,350 INFO L273 TraceCheckUtils]: 74: Hoare triple {21816#(and (or (< 40 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 40) (<= main_i 148)))} assume i <= n * 4; {21816#(and (or (< 40 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 40) (<= main_i 148)))} is VALID [2019-02-27 13:00:55,351 INFO L273 TraceCheckUtils]: 75: Hoare triple {21816#(and (or (< 40 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 40) (<= main_i 148)))} assume a[i] != 23;i := i + 4; {21817#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 152)))} is VALID [2019-02-27 13:00:55,352 INFO L273 TraceCheckUtils]: 76: Hoare triple {21817#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 152)))} assume i <= n * 4; {21817#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 152)))} is VALID [2019-02-27 13:00:55,353 INFO L273 TraceCheckUtils]: 77: Hoare triple {21817#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 152)))} assume a[i] != 23;i := i + 4; {21818#(and (or (<= main_i 156) (<= main_n 40)) (or (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,354 INFO L273 TraceCheckUtils]: 78: Hoare triple {21818#(and (or (<= main_i 156) (<= main_n 40)) (or (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21818#(and (or (<= main_i 156) (<= main_n 40)) (or (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2019-02-27 13:00:55,355 INFO L273 TraceCheckUtils]: 79: Hoare triple {21818#(and (or (<= main_i 156) (<= main_n 40)) (or (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21819#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 40 main_n)) (or (<= main_n 40) (<= main_i 160)))} is VALID [2019-02-27 13:00:55,356 INFO L273 TraceCheckUtils]: 80: Hoare triple {21819#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 40 main_n)) (or (<= main_n 40) (<= main_i 160)))} assume i <= n * 4; {21820#(and (or (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i))) (< 40 main_n)) (<= main_i 160))} is VALID [2019-02-27 13:00:55,357 INFO L273 TraceCheckUtils]: 81: Hoare triple {21820#(and (or (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i))) (< 40 main_n)) (<= main_i 160))} assume a[i] != 23;i := i + 4; {21821#(and (<= main_i 164) (< 40 main_n))} is VALID [2019-02-27 13:00:55,358 INFO L273 TraceCheckUtils]: 82: Hoare triple {21821#(and (<= main_i 164) (< 40 main_n))} assume !(i <= n * 4); {21778#false} is VALID [2019-02-27 13:00:55,389 INFO L134 CoverageAnalysis]: Checked inductivity of 1640 backedges. 0 proven. 1640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:00:55,389 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 13:00:55,389 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 13:00:55,390 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 13:00:55,390 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 13:00:55,390 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 13:00:55,390 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 13:00:55,398 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 13:00:55,399 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-27 13:00:55,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:00:55,423 WARN L254 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 87 conjunts are in the unsatisfiable core [2019-02-27 13:00:55,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:00:55,450 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 13:00:55,455 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 13:00:55,456 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 13:00:55,461 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 13:00:55,461 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 13:00:55,464 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 13:00:55,464 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_44]. (and (= (store v_main_a_44 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-27 13:00:55,464 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 13:00:58,486 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 13:00:58,488 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 13:00:58,492 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 13:00:58,493 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 13:00:58,495 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 13:00:58,495 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 160 .cse0) (<= main_i 164) (not (= 23 (select main_a 160))) (= 23 (select main_a .cse0)))) [2019-02-27 13:00:58,496 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 160 .cse0) (<= main_i 164) (not (= 160 .cse0)))) [2019-02-27 13:00:58,544 INFO L273 TraceCheckUtils]: 0: Hoare triple {21777#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {21825#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,545 INFO L273 TraceCheckUtils]: 1: Hoare triple {21825#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21829#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 13:00:58,545 INFO L273 TraceCheckUtils]: 2: Hoare triple {21829#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {21829#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 13:00:58,546 INFO L273 TraceCheckUtils]: 3: Hoare triple {21829#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {21836#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,547 INFO L273 TraceCheckUtils]: 4: Hoare triple {21836#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21836#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,547 INFO L273 TraceCheckUtils]: 5: Hoare triple {21836#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21843#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 13:00:58,548 INFO L273 TraceCheckUtils]: 6: Hoare triple {21843#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {21843#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 13:00:58,549 INFO L273 TraceCheckUtils]: 7: Hoare triple {21843#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {21850#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,549 INFO L273 TraceCheckUtils]: 8: Hoare triple {21850#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21850#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,550 INFO L273 TraceCheckUtils]: 9: Hoare triple {21850#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21857#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,551 INFO L273 TraceCheckUtils]: 10: Hoare triple {21857#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21857#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,551 INFO L273 TraceCheckUtils]: 11: Hoare triple {21857#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21864#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,552 INFO L273 TraceCheckUtils]: 12: Hoare triple {21864#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21864#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,553 INFO L273 TraceCheckUtils]: 13: Hoare triple {21864#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21871#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,553 INFO L273 TraceCheckUtils]: 14: Hoare triple {21871#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21871#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,554 INFO L273 TraceCheckUtils]: 15: Hoare triple {21871#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21878#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,555 INFO L273 TraceCheckUtils]: 16: Hoare triple {21878#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21878#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,555 INFO L273 TraceCheckUtils]: 17: Hoare triple {21878#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21885#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,556 INFO L273 TraceCheckUtils]: 18: Hoare triple {21885#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21885#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,557 INFO L273 TraceCheckUtils]: 19: Hoare triple {21885#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21892#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,557 INFO L273 TraceCheckUtils]: 20: Hoare triple {21892#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21892#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,558 INFO L273 TraceCheckUtils]: 21: Hoare triple {21892#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21899#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,559 INFO L273 TraceCheckUtils]: 22: Hoare triple {21899#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21899#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,559 INFO L273 TraceCheckUtils]: 23: Hoare triple {21899#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21906#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,560 INFO L273 TraceCheckUtils]: 24: Hoare triple {21906#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21906#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,561 INFO L273 TraceCheckUtils]: 25: Hoare triple {21906#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21913#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,561 INFO L273 TraceCheckUtils]: 26: Hoare triple {21913#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21913#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,562 INFO L273 TraceCheckUtils]: 27: Hoare triple {21913#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21920#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,563 INFO L273 TraceCheckUtils]: 28: Hoare triple {21920#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21920#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,563 INFO L273 TraceCheckUtils]: 29: Hoare triple {21920#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21927#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,564 INFO L273 TraceCheckUtils]: 30: Hoare triple {21927#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21927#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,565 INFO L273 TraceCheckUtils]: 31: Hoare triple {21927#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21934#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,565 INFO L273 TraceCheckUtils]: 32: Hoare triple {21934#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21934#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,566 INFO L273 TraceCheckUtils]: 33: Hoare triple {21934#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21941#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,572 INFO L273 TraceCheckUtils]: 34: Hoare triple {21941#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21941#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,573 INFO L273 TraceCheckUtils]: 35: Hoare triple {21941#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21948#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,573 INFO L273 TraceCheckUtils]: 36: Hoare triple {21948#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21948#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,573 INFO L273 TraceCheckUtils]: 37: Hoare triple {21948#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21955#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,574 INFO L273 TraceCheckUtils]: 38: Hoare triple {21955#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21955#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,574 INFO L273 TraceCheckUtils]: 39: Hoare triple {21955#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21962#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 13:00:58,575 INFO L273 TraceCheckUtils]: 40: Hoare triple {21962#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {21962#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 13:00:58,575 INFO L273 TraceCheckUtils]: 41: Hoare triple {21962#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {21969#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,576 INFO L273 TraceCheckUtils]: 42: Hoare triple {21969#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21969#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,577 INFO L273 TraceCheckUtils]: 43: Hoare triple {21969#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21976#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,577 INFO L273 TraceCheckUtils]: 44: Hoare triple {21976#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21976#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,578 INFO L273 TraceCheckUtils]: 45: Hoare triple {21976#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21983#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,579 INFO L273 TraceCheckUtils]: 46: Hoare triple {21983#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21983#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,579 INFO L273 TraceCheckUtils]: 47: Hoare triple {21983#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21990#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,580 INFO L273 TraceCheckUtils]: 48: Hoare triple {21990#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21990#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,581 INFO L273 TraceCheckUtils]: 49: Hoare triple {21990#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21997#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,581 INFO L273 TraceCheckUtils]: 50: Hoare triple {21997#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21997#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,582 INFO L273 TraceCheckUtils]: 51: Hoare triple {21997#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22004#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,583 INFO L273 TraceCheckUtils]: 52: Hoare triple {22004#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22004#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,583 INFO L273 TraceCheckUtils]: 53: Hoare triple {22004#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22011#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,584 INFO L273 TraceCheckUtils]: 54: Hoare triple {22011#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22011#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,585 INFO L273 TraceCheckUtils]: 55: Hoare triple {22011#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22018#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,585 INFO L273 TraceCheckUtils]: 56: Hoare triple {22018#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22018#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,586 INFO L273 TraceCheckUtils]: 57: Hoare triple {22018#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22025#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,587 INFO L273 TraceCheckUtils]: 58: Hoare triple {22025#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22025#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,587 INFO L273 TraceCheckUtils]: 59: Hoare triple {22025#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22032#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,588 INFO L273 TraceCheckUtils]: 60: Hoare triple {22032#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22032#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,589 INFO L273 TraceCheckUtils]: 61: Hoare triple {22032#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22039#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,589 INFO L273 TraceCheckUtils]: 62: Hoare triple {22039#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22039#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,590 INFO L273 TraceCheckUtils]: 63: Hoare triple {22039#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22046#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,591 INFO L273 TraceCheckUtils]: 64: Hoare triple {22046#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22046#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,592 INFO L273 TraceCheckUtils]: 65: Hoare triple {22046#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22053#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,592 INFO L273 TraceCheckUtils]: 66: Hoare triple {22053#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22053#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,593 INFO L273 TraceCheckUtils]: 67: Hoare triple {22053#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22060#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,594 INFO L273 TraceCheckUtils]: 68: Hoare triple {22060#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22060#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,594 INFO L273 TraceCheckUtils]: 69: Hoare triple {22060#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22067#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 13:00:58,595 INFO L273 TraceCheckUtils]: 70: Hoare triple {22067#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {22067#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 13:00:58,596 INFO L273 TraceCheckUtils]: 71: Hoare triple {22067#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {22074#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,597 INFO L273 TraceCheckUtils]: 72: Hoare triple {22074#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22074#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,597 INFO L273 TraceCheckUtils]: 73: Hoare triple {22074#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22081#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,598 INFO L273 TraceCheckUtils]: 74: Hoare triple {22081#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22081#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,599 INFO L273 TraceCheckUtils]: 75: Hoare triple {22081#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22088#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,599 INFO L273 TraceCheckUtils]: 76: Hoare triple {22088#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22088#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,600 INFO L273 TraceCheckUtils]: 77: Hoare triple {22088#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22095#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,601 INFO L273 TraceCheckUtils]: 78: Hoare triple {22095#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22095#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,601 INFO L273 TraceCheckUtils]: 79: Hoare triple {22095#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22102#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,602 INFO L273 TraceCheckUtils]: 80: Hoare triple {22102#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22106#(and (= main_i 160) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:00:58,603 INFO L273 TraceCheckUtils]: 81: Hoare triple {22106#(and (= main_i 160) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21821#(and (<= main_i 164) (< 40 main_n))} is VALID [2019-02-27 13:00:58,604 INFO L273 TraceCheckUtils]: 82: Hoare triple {21821#(and (<= main_i 164) (< 40 main_n))} assume !(i <= n * 4); {21778#false} is VALID [2019-02-27 13:00:58,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1640 backedges. 0 proven. 1640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:00:58,621 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 13:01:03,560 INFO L273 TraceCheckUtils]: 82: Hoare triple {22113#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {21778#false} is VALID [2019-02-27 13:01:03,562 INFO L273 TraceCheckUtils]: 81: Hoare triple {22117#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {22113#(<= main_i (* 4 main_n))} is VALID [2019-02-27 13:01:03,562 INFO L273 TraceCheckUtils]: 80: Hoare triple {22121#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {22117#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:01:03,563 INFO L273 TraceCheckUtils]: 79: Hoare triple {22125#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {22121#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:01:03,564 INFO L273 TraceCheckUtils]: 78: Hoare triple {22125#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {22125#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:01:03,565 INFO L273 TraceCheckUtils]: 77: Hoare triple {22132#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {22125#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:01:03,565 INFO L273 TraceCheckUtils]: 76: Hoare triple {22132#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {22132#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:01:03,566 INFO L273 TraceCheckUtils]: 75: Hoare triple {22139#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {22132#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:01:03,567 INFO L273 TraceCheckUtils]: 74: Hoare triple {22139#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {22139#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:01:03,568 INFO L273 TraceCheckUtils]: 73: Hoare triple {22146#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {22139#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:01:03,569 INFO L273 TraceCheckUtils]: 72: Hoare triple {22146#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {22146#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:01:03,570 INFO L273 TraceCheckUtils]: 71: Hoare triple {22153#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22146#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:01:03,570 INFO L273 TraceCheckUtils]: 70: Hoare triple {22153#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {22153#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:01:03,571 INFO L273 TraceCheckUtils]: 69: Hoare triple {22160#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {22153#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:01:03,572 INFO L273 TraceCheckUtils]: 68: Hoare triple {22160#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {22160#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:01:03,573 INFO L273 TraceCheckUtils]: 67: Hoare triple {22167#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22160#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:01:03,573 INFO L273 TraceCheckUtils]: 66: Hoare triple {22167#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {22167#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:01:03,575 INFO L273 TraceCheckUtils]: 65: Hoare triple {22174#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22167#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:01:03,575 INFO L273 TraceCheckUtils]: 64: Hoare triple {22174#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {22174#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:01:03,576 INFO L273 TraceCheckUtils]: 63: Hoare triple {22181#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22174#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:01:03,577 INFO L273 TraceCheckUtils]: 62: Hoare triple {22181#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {22181#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:01:03,578 INFO L273 TraceCheckUtils]: 61: Hoare triple {22188#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {22181#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:01:03,578 INFO L273 TraceCheckUtils]: 60: Hoare triple {22188#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {22188#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:01:03,579 INFO L273 TraceCheckUtils]: 59: Hoare triple {22195#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22188#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:01:03,580 INFO L273 TraceCheckUtils]: 58: Hoare triple {22195#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {22195#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:01:03,581 INFO L273 TraceCheckUtils]: 57: Hoare triple {22202#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22195#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:01:03,582 INFO L273 TraceCheckUtils]: 56: Hoare triple {22202#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {22202#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:01:03,583 INFO L273 TraceCheckUtils]: 55: Hoare triple {22209#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {22202#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:01:03,583 INFO L273 TraceCheckUtils]: 54: Hoare triple {22209#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {22209#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:01:03,584 INFO L273 TraceCheckUtils]: 53: Hoare triple {22216#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22209#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:01:03,585 INFO L273 TraceCheckUtils]: 52: Hoare triple {22216#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {22216#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:01:03,586 INFO L273 TraceCheckUtils]: 51: Hoare triple {22223#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {22216#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:01:03,587 INFO L273 TraceCheckUtils]: 50: Hoare triple {22223#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {22223#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:01:03,588 INFO L273 TraceCheckUtils]: 49: Hoare triple {22230#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {22223#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:01:03,588 INFO L273 TraceCheckUtils]: 48: Hoare triple {22230#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {22230#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:01:03,589 INFO L273 TraceCheckUtils]: 47: Hoare triple {22237#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {22230#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:01:03,590 INFO L273 TraceCheckUtils]: 46: Hoare triple {22237#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {22237#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:01:03,591 INFO L273 TraceCheckUtils]: 45: Hoare triple {22244#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {22237#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:01:03,591 INFO L273 TraceCheckUtils]: 44: Hoare triple {22244#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {22244#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:01:03,592 INFO L273 TraceCheckUtils]: 43: Hoare triple {22251#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {22244#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:01:03,593 INFO L273 TraceCheckUtils]: 42: Hoare triple {22251#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {22251#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:01:03,594 INFO L273 TraceCheckUtils]: 41: Hoare triple {22258#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {22251#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:01:03,595 INFO L273 TraceCheckUtils]: 40: Hoare triple {22258#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {22258#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:01:03,596 INFO L273 TraceCheckUtils]: 39: Hoare triple {22265#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22258#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:01:03,596 INFO L273 TraceCheckUtils]: 38: Hoare triple {22265#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {22265#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:01:03,597 INFO L273 TraceCheckUtils]: 37: Hoare triple {22272#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22265#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:01:03,598 INFO L273 TraceCheckUtils]: 36: Hoare triple {22272#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {22272#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:01:03,599 INFO L273 TraceCheckUtils]: 35: Hoare triple {22279#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22272#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:01:03,599 INFO L273 TraceCheckUtils]: 34: Hoare triple {22279#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {22279#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:01:03,600 INFO L273 TraceCheckUtils]: 33: Hoare triple {22286#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {22279#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:01:03,601 INFO L273 TraceCheckUtils]: 32: Hoare triple {22286#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {22286#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:01:03,602 INFO L273 TraceCheckUtils]: 31: Hoare triple {22293#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22286#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:01:03,602 INFO L273 TraceCheckUtils]: 30: Hoare triple {22293#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {22293#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:01:03,603 INFO L273 TraceCheckUtils]: 29: Hoare triple {22300#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {22293#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:01:03,604 INFO L273 TraceCheckUtils]: 28: Hoare triple {22300#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {22300#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:01:03,605 INFO L273 TraceCheckUtils]: 27: Hoare triple {22307#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {22300#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:01:03,605 INFO L273 TraceCheckUtils]: 26: Hoare triple {22307#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {22307#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:01:03,607 INFO L273 TraceCheckUtils]: 25: Hoare triple {22314#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {22307#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:01:03,607 INFO L273 TraceCheckUtils]: 24: Hoare triple {22314#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {22314#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:01:03,608 INFO L273 TraceCheckUtils]: 23: Hoare triple {22321#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22314#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:01:03,609 INFO L273 TraceCheckUtils]: 22: Hoare triple {22321#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {22321#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:01:03,610 INFO L273 TraceCheckUtils]: 21: Hoare triple {22328#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22321#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:01:03,610 INFO L273 TraceCheckUtils]: 20: Hoare triple {22328#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {22328#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:01:03,611 INFO L273 TraceCheckUtils]: 19: Hoare triple {22335#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {22328#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:01:03,612 INFO L273 TraceCheckUtils]: 18: Hoare triple {22335#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {22335#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:01:03,613 INFO L273 TraceCheckUtils]: 17: Hoare triple {22342#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22335#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:01:03,613 INFO L273 TraceCheckUtils]: 16: Hoare triple {22342#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {22342#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:01:03,615 INFO L273 TraceCheckUtils]: 15: Hoare triple {22349#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {22342#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:01:03,615 INFO L273 TraceCheckUtils]: 14: Hoare triple {22349#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {22349#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:01:03,616 INFO L273 TraceCheckUtils]: 13: Hoare triple {22356#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {22349#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:01:03,617 INFO L273 TraceCheckUtils]: 12: Hoare triple {22356#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {22356#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:01:03,618 INFO L273 TraceCheckUtils]: 11: Hoare triple {22363#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {22356#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:01:03,618 INFO L273 TraceCheckUtils]: 10: Hoare triple {22363#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {22363#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:01:03,619 INFO L273 TraceCheckUtils]: 9: Hoare triple {22370#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {22363#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:01:03,620 INFO L273 TraceCheckUtils]: 8: Hoare triple {22370#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {22370#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:01:03,621 INFO L273 TraceCheckUtils]: 7: Hoare triple {22377#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {22370#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:01:03,621 INFO L273 TraceCheckUtils]: 6: Hoare triple {22377#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {22377#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-02-27 13:01:03,623 INFO L273 TraceCheckUtils]: 5: Hoare triple {22384#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {22377#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-02-27 13:01:03,623 INFO L273 TraceCheckUtils]: 4: Hoare triple {22384#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {22384#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-02-27 13:01:03,624 INFO L273 TraceCheckUtils]: 3: Hoare triple {22391#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {22384#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-02-27 13:01:03,625 INFO L273 TraceCheckUtils]: 2: Hoare triple {22391#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {22391#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-02-27 13:01:03,626 INFO L273 TraceCheckUtils]: 1: Hoare triple {22398#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {22391#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-02-27 13:01:03,627 INFO L273 TraceCheckUtils]: 0: Hoare triple {21777#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {22398#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-02-27 13:01:03,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1640 backedges. 0 proven. 1640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:01:03,672 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 13:01:03,672 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43, 43] total 128 [2019-02-27 13:01:03,672 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 13:01:03,672 INFO L78 Accepts]: Start accepts. Automaton has 87 states. Word has length 83 [2019-02-27 13:01:03,672 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 13:01:03,672 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 87 states. [2019-02-27 13:01:03,876 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 165 edges. 165 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 13:01:03,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 87 states [2019-02-27 13:01:03,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2019-02-27 13:01:03,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2072, Invalid=14698, Unknown=0, NotChecked=0, Total=16770 [2019-02-27 13:01:03,877 INFO L87 Difference]: Start difference. First operand 84 states and 84 transitions. Second operand 87 states. [2019-02-27 13:01:14,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:01:14,252 INFO L93 Difference]: Finished difference Result 88 states and 88 transitions. [2019-02-27 13:01:14,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2019-02-27 13:01:14,252 INFO L78 Accepts]: Start accepts. Automaton has 87 states. Word has length 83 [2019-02-27 13:01:14,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 13:01:14,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-02-27 13:01:14,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 88 transitions. [2019-02-27 13:01:14,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-02-27 13:01:14,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 88 transitions. [2019-02-27 13:01:14,255 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 45 states and 88 transitions. [2019-02-27 13:01:14,351 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 88 edges. 88 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 13:01:14,352 INFO L225 Difference]: With dead ends: 88 [2019-02-27 13:01:14,352 INFO L226 Difference]: Without dead ends: 87 [2019-02-27 13:01:14,353 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3780 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=2072, Invalid=14698, Unknown=0, NotChecked=0, Total=16770 [2019-02-27 13:01:14,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2019-02-27 13:01:14,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2019-02-27 13:01:14,449 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 13:01:14,449 INFO L82 GeneralOperation]: Start isEquivalent. First operand 87 states. Second operand 86 states. [2019-02-27 13:01:14,449 INFO L74 IsIncluded]: Start isIncluded. First operand 87 states. Second operand 86 states. [2019-02-27 13:01:14,449 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 86 states. [2019-02-27 13:01:14,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:01:14,451 INFO L93 Difference]: Finished difference Result 87 states and 87 transitions. [2019-02-27 13:01:14,451 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 87 transitions. [2019-02-27 13:01:14,451 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 13:01:14,451 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 13:01:14,451 INFO L74 IsIncluded]: Start isIncluded. First operand 86 states. Second operand 87 states. [2019-02-27 13:01:14,451 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 87 states. [2019-02-27 13:01:14,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:01:14,453 INFO L93 Difference]: Finished difference Result 87 states and 87 transitions. [2019-02-27 13:01:14,453 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 87 transitions. [2019-02-27 13:01:14,453 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 13:01:14,453 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 13:01:14,453 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 13:01:14,453 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 13:01:14,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-02-27 13:01:14,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 86 transitions. [2019-02-27 13:01:14,455 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 86 transitions. Word has length 83 [2019-02-27 13:01:14,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 13:01:14,455 INFO L480 AbstractCegarLoop]: Abstraction has 86 states and 86 transitions. [2019-02-27 13:01:14,455 INFO L481 AbstractCegarLoop]: Interpolant automaton has 87 states. [2019-02-27 13:01:14,455 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 86 transitions. [2019-02-27 13:01:14,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-02-27 13:01:14,456 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 13:01:14,456 INFO L402 BasicCegarLoop]: trace histogram [42, 41, 1, 1] [2019-02-27 13:01:14,456 INFO L423 AbstractCegarLoop]: === Iteration 42 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 13:01:14,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 13:01:14,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1765011826, now seen corresponding path program 41 times [2019-02-27 13:01:14,456 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 13:01:14,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 13:01:14,457 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 13:01:14,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 13:01:14,457 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 13:01:14,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:01:16,862 INFO L273 TraceCheckUtils]: 0: Hoare triple {22834#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {22836#(and (or (<= 0 main_i) (< 41 main_n)) (or (<= main_i 0) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,863 INFO L273 TraceCheckUtils]: 1: Hoare triple {22836#(and (or (<= 0 main_i) (< 41 main_n)) (or (<= main_i 0) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22837#(and (or (<= main_n 41) (<= main_i 4)) (or (< 41 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,865 INFO L273 TraceCheckUtils]: 2: Hoare triple {22837#(and (or (<= main_n 41) (<= main_i 4)) (or (< 41 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22837#(and (or (<= main_n 41) (<= main_i 4)) (or (< 41 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,867 INFO L273 TraceCheckUtils]: 3: Hoare triple {22837#(and (or (<= main_n 41) (<= main_i 4)) (or (< 41 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22838#(and (or (<= 8 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 41)))} is VALID [2019-02-27 13:01:16,868 INFO L273 TraceCheckUtils]: 4: Hoare triple {22838#(and (or (<= 8 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 41)))} assume i <= n * 4; {22838#(and (or (<= 8 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 41)))} is VALID [2019-02-27 13:01:16,869 INFO L273 TraceCheckUtils]: 5: Hoare triple {22838#(and (or (<= 8 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 41)))} assume a[i] != 23;i := i + 4; {22839#(and (or (< 41 main_n) (<= 12 main_i)) (or (<= main_n 41) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,869 INFO L273 TraceCheckUtils]: 6: Hoare triple {22839#(and (or (< 41 main_n) (<= 12 main_i)) (or (<= main_n 41) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22839#(and (or (< 41 main_n) (<= 12 main_i)) (or (<= main_n 41) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,871 INFO L273 TraceCheckUtils]: 7: Hoare triple {22839#(and (or (< 41 main_n) (<= 12 main_i)) (or (<= main_n 41) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22840#(and (or (<= main_n 41) (<= main_i 16)) (or (< 41 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,873 INFO L273 TraceCheckUtils]: 8: Hoare triple {22840#(and (or (<= main_n 41) (<= main_i 16)) (or (< 41 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22840#(and (or (<= main_n 41) (<= main_i 16)) (or (< 41 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,875 INFO L273 TraceCheckUtils]: 9: Hoare triple {22840#(and (or (<= main_n 41) (<= main_i 16)) (or (< 41 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22841#(and (or (< 41 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 20) (<= main_n 41)))} is VALID [2019-02-27 13:01:16,878 INFO L273 TraceCheckUtils]: 10: Hoare triple {22841#(and (or (< 41 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 20) (<= main_n 41)))} assume i <= n * 4; {22841#(and (or (< 41 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 20) (<= main_n 41)))} is VALID [2019-02-27 13:01:16,878 INFO L273 TraceCheckUtils]: 11: Hoare triple {22841#(and (or (< 41 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 20) (<= main_n 41)))} assume a[i] != 23;i := i + 4; {22842#(and (or (<= 24 main_i) (< 41 main_n)) (or (<= main_i 24) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,881 INFO L273 TraceCheckUtils]: 12: Hoare triple {22842#(and (or (<= 24 main_i) (< 41 main_n)) (or (<= main_i 24) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22842#(and (or (<= 24 main_i) (< 41 main_n)) (or (<= main_i 24) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,881 INFO L273 TraceCheckUtils]: 13: Hoare triple {22842#(and (or (<= 24 main_i) (< 41 main_n)) (or (<= main_i 24) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22843#(and (or (<= main_n 41) (<= main_i 28)) (or (<= 28 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,884 INFO L273 TraceCheckUtils]: 14: Hoare triple {22843#(and (or (<= main_n 41) (<= main_i 28)) (or (<= 28 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22843#(and (or (<= main_n 41) (<= main_i 28)) (or (<= 28 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,884 INFO L273 TraceCheckUtils]: 15: Hoare triple {22843#(and (or (<= main_n 41) (<= main_i 28)) (or (<= 28 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22844#(and (or (<= 32 main_i) (< 41 main_n)) (or (<= main_i 32) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,887 INFO L273 TraceCheckUtils]: 16: Hoare triple {22844#(and (or (<= 32 main_i) (< 41 main_n)) (or (<= main_i 32) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22844#(and (or (<= 32 main_i) (< 41 main_n)) (or (<= main_i 32) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,888 INFO L273 TraceCheckUtils]: 17: Hoare triple {22844#(and (or (<= 32 main_i) (< 41 main_n)) (or (<= main_i 32) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22845#(and (or (< 41 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,890 INFO L273 TraceCheckUtils]: 18: Hoare triple {22845#(and (or (< 41 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22845#(and (or (< 41 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,890 INFO L273 TraceCheckUtils]: 19: Hoare triple {22845#(and (or (< 41 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22846#(and (or (<= 40 main_i) (< 41 main_n)) (or (<= main_i 40) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,891 INFO L273 TraceCheckUtils]: 20: Hoare triple {22846#(and (or (<= 40 main_i) (< 41 main_n)) (or (<= main_i 40) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22846#(and (or (<= 40 main_i) (< 41 main_n)) (or (<= main_i 40) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,891 INFO L273 TraceCheckUtils]: 21: Hoare triple {22846#(and (or (<= 40 main_i) (< 41 main_n)) (or (<= main_i 40) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22847#(and (or (<= main_n 41) (<= main_i 44)) (or (<= 44 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,896 INFO L273 TraceCheckUtils]: 22: Hoare triple {22847#(and (or (<= main_n 41) (<= main_i 44)) (or (<= 44 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22847#(and (or (<= main_n 41) (<= main_i 44)) (or (<= 44 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,897 INFO L273 TraceCheckUtils]: 23: Hoare triple {22847#(and (or (<= main_n 41) (<= main_i 44)) (or (<= 44 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22848#(and (or (<= 48 main_i) (< 41 main_n)) (or (<= main_n 41) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,897 INFO L273 TraceCheckUtils]: 24: Hoare triple {22848#(and (or (<= 48 main_i) (< 41 main_n)) (or (<= main_n 41) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22848#(and (or (<= 48 main_i) (< 41 main_n)) (or (<= main_n 41) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,898 INFO L273 TraceCheckUtils]: 25: Hoare triple {22848#(and (or (<= 48 main_i) (< 41 main_n)) (or (<= main_n 41) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22849#(and (or (<= main_i 52) (<= main_n 41)) (or (< 41 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,898 INFO L273 TraceCheckUtils]: 26: Hoare triple {22849#(and (or (<= main_i 52) (<= main_n 41)) (or (< 41 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22849#(and (or (<= main_i 52) (<= main_n 41)) (or (< 41 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,899 INFO L273 TraceCheckUtils]: 27: Hoare triple {22849#(and (or (<= main_i 52) (<= main_n 41)) (or (< 41 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22850#(and (or (< 41 main_n) (<= 56 main_i)) (or (<= main_n 41) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,900 INFO L273 TraceCheckUtils]: 28: Hoare triple {22850#(and (or (< 41 main_n) (<= 56 main_i)) (or (<= main_n 41) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22850#(and (or (< 41 main_n) (<= 56 main_i)) (or (<= main_n 41) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,901 INFO L273 TraceCheckUtils]: 29: Hoare triple {22850#(and (or (< 41 main_n) (<= 56 main_i)) (or (<= main_n 41) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22851#(and (or (< 41 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 60) (<= main_n 41)))} is VALID [2019-02-27 13:01:16,902 INFO L273 TraceCheckUtils]: 30: Hoare triple {22851#(and (or (< 41 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 60) (<= main_n 41)))} assume i <= n * 4; {22851#(and (or (< 41 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 60) (<= main_n 41)))} is VALID [2019-02-27 13:01:16,903 INFO L273 TraceCheckUtils]: 31: Hoare triple {22851#(and (or (< 41 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 60) (<= main_n 41)))} assume a[i] != 23;i := i + 4; {22852#(and (or (<= main_i 64) (<= main_n 41)) (or (<= 64 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,904 INFO L273 TraceCheckUtils]: 32: Hoare triple {22852#(and (or (<= main_i 64) (<= main_n 41)) (or (<= 64 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22852#(and (or (<= main_i 64) (<= main_n 41)) (or (<= 64 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,905 INFO L273 TraceCheckUtils]: 33: Hoare triple {22852#(and (or (<= main_i 64) (<= main_n 41)) (or (<= 64 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22853#(and (or (<= main_n 41) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 41 main_n) (<= 68 main_i)))} is VALID [2019-02-27 13:01:16,905 INFO L273 TraceCheckUtils]: 34: Hoare triple {22853#(and (or (<= main_n 41) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 41 main_n) (<= 68 main_i)))} assume i <= n * 4; {22853#(and (or (<= main_n 41) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 41 main_n) (<= 68 main_i)))} is VALID [2019-02-27 13:01:16,906 INFO L273 TraceCheckUtils]: 35: Hoare triple {22853#(and (or (<= main_n 41) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 41 main_n) (<= 68 main_i)))} assume a[i] != 23;i := i + 4; {22854#(and (or (<= main_n 41) (<= main_i 72)) (or (<= 72 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,907 INFO L273 TraceCheckUtils]: 36: Hoare triple {22854#(and (or (<= main_n 41) (<= main_i 72)) (or (<= 72 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22854#(and (or (<= main_n 41) (<= main_i 72)) (or (<= 72 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,908 INFO L273 TraceCheckUtils]: 37: Hoare triple {22854#(and (or (<= main_n 41) (<= main_i 72)) (or (<= 72 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22855#(and (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 41 main_n)) (or (<= main_i 76) (<= main_n 41)))} is VALID [2019-02-27 13:01:16,909 INFO L273 TraceCheckUtils]: 38: Hoare triple {22855#(and (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 41 main_n)) (or (<= main_i 76) (<= main_n 41)))} assume i <= n * 4; {22855#(and (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 41 main_n)) (or (<= main_i 76) (<= main_n 41)))} is VALID [2019-02-27 13:01:16,910 INFO L273 TraceCheckUtils]: 39: Hoare triple {22855#(and (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 41 main_n)) (or (<= main_i 76) (<= main_n 41)))} assume a[i] != 23;i := i + 4; {22856#(and (or (<= main_n 41) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (<= 80 main_i) (< 41 main_n)))} is VALID [2019-02-27 13:01:16,911 INFO L273 TraceCheckUtils]: 40: Hoare triple {22856#(and (or (<= main_n 41) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (<= 80 main_i) (< 41 main_n)))} assume i <= n * 4; {22856#(and (or (<= main_n 41) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (<= 80 main_i) (< 41 main_n)))} is VALID [2019-02-27 13:01:16,912 INFO L273 TraceCheckUtils]: 41: Hoare triple {22856#(and (or (<= main_n 41) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (<= 80 main_i) (< 41 main_n)))} assume a[i] != 23;i := i + 4; {22857#(and (or (<= main_i 84) (<= main_n 41)) (or (< 41 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,912 INFO L273 TraceCheckUtils]: 42: Hoare triple {22857#(and (or (<= main_i 84) (<= main_n 41)) (or (< 41 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22857#(and (or (<= main_i 84) (<= main_n 41)) (or (< 41 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,913 INFO L273 TraceCheckUtils]: 43: Hoare triple {22857#(and (or (<= main_i 84) (<= main_n 41)) (or (< 41 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22858#(and (or (< 41 main_n) (<= 88 main_i)) (or (<= main_i 88) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,914 INFO L273 TraceCheckUtils]: 44: Hoare triple {22858#(and (or (< 41 main_n) (<= 88 main_i)) (or (<= main_i 88) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22858#(and (or (< 41 main_n) (<= 88 main_i)) (or (<= main_i 88) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,915 INFO L273 TraceCheckUtils]: 45: Hoare triple {22858#(and (or (< 41 main_n) (<= 88 main_i)) (or (<= main_i 88) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22859#(and (or (<= main_i 92) (<= main_n 41)) (or (< 41 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,916 INFO L273 TraceCheckUtils]: 46: Hoare triple {22859#(and (or (<= main_i 92) (<= main_n 41)) (or (< 41 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22859#(and (or (<= main_i 92) (<= main_n 41)) (or (< 41 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,917 INFO L273 TraceCheckUtils]: 47: Hoare triple {22859#(and (or (<= main_i 92) (<= main_n 41)) (or (< 41 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22860#(and (or (<= 96 main_i) (< 41 main_n)) (or (<= main_i 96) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,918 INFO L273 TraceCheckUtils]: 48: Hoare triple {22860#(and (or (<= 96 main_i) (< 41 main_n)) (or (<= main_i 96) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22860#(and (or (<= 96 main_i) (< 41 main_n)) (or (<= main_i 96) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,919 INFO L273 TraceCheckUtils]: 49: Hoare triple {22860#(and (or (<= 96 main_i) (< 41 main_n)) (or (<= main_i 96) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22861#(and (or (<= main_i 100) (<= main_n 41)) (or (<= 100 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,920 INFO L273 TraceCheckUtils]: 50: Hoare triple {22861#(and (or (<= main_i 100) (<= main_n 41)) (or (<= 100 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22861#(and (or (<= main_i 100) (<= main_n 41)) (or (<= 100 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,921 INFO L273 TraceCheckUtils]: 51: Hoare triple {22861#(and (or (<= main_i 100) (<= main_n 41)) (or (<= 100 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22862#(and (or (<= 104 main_i) (< 41 main_n)) (or (<= main_i 104) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,922 INFO L273 TraceCheckUtils]: 52: Hoare triple {22862#(and (or (<= 104 main_i) (< 41 main_n)) (or (<= main_i 104) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22862#(and (or (<= 104 main_i) (< 41 main_n)) (or (<= main_i 104) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,923 INFO L273 TraceCheckUtils]: 53: Hoare triple {22862#(and (or (<= 104 main_i) (< 41 main_n)) (or (<= main_i 104) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22863#(and (or (<= 108 main_i) (< 41 main_n)) (or (<= main_n 41) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,923 INFO L273 TraceCheckUtils]: 54: Hoare triple {22863#(and (or (<= 108 main_i) (< 41 main_n)) (or (<= main_n 41) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22863#(and (or (<= 108 main_i) (< 41 main_n)) (or (<= main_n 41) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,924 INFO L273 TraceCheckUtils]: 55: Hoare triple {22863#(and (or (<= 108 main_i) (< 41 main_n)) (or (<= main_n 41) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22864#(and (or (<= main_n 41) (<= main_i 112)) (or (< 41 main_n) (<= 112 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,925 INFO L273 TraceCheckUtils]: 56: Hoare triple {22864#(and (or (<= main_n 41) (<= main_i 112)) (or (< 41 main_n) (<= 112 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22864#(and (or (<= main_n 41) (<= main_i 112)) (or (< 41 main_n) (<= 112 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,926 INFO L273 TraceCheckUtils]: 57: Hoare triple {22864#(and (or (<= main_n 41) (<= main_i 112)) (or (< 41 main_n) (<= 112 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22865#(and (or (<= 116 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 116) (<= main_n 41)))} is VALID [2019-02-27 13:01:16,927 INFO L273 TraceCheckUtils]: 58: Hoare triple {22865#(and (or (<= 116 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 116) (<= main_n 41)))} assume i <= n * 4; {22865#(and (or (<= 116 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 116) (<= main_n 41)))} is VALID [2019-02-27 13:01:16,928 INFO L273 TraceCheckUtils]: 59: Hoare triple {22865#(and (or (<= 116 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 116) (<= main_n 41)))} assume a[i] != 23;i := i + 4; {22866#(and (or (<= main_i 120) (<= main_n 41)) (or (<= 120 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,929 INFO L273 TraceCheckUtils]: 60: Hoare triple {22866#(and (or (<= main_i 120) (<= main_n 41)) (or (<= 120 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22866#(and (or (<= main_i 120) (<= main_n 41)) (or (<= 120 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,930 INFO L273 TraceCheckUtils]: 61: Hoare triple {22866#(and (or (<= main_i 120) (<= main_n 41)) (or (<= 120 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22867#(and (or (<= main_n 41) (<= main_i 124)) (or (<= 124 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,931 INFO L273 TraceCheckUtils]: 62: Hoare triple {22867#(and (or (<= main_n 41) (<= main_i 124)) (or (<= 124 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22867#(and (or (<= main_n 41) (<= main_i 124)) (or (<= 124 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,932 INFO L273 TraceCheckUtils]: 63: Hoare triple {22867#(and (or (<= main_n 41) (<= main_i 124)) (or (<= 124 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22868#(and (or (< 41 main_n) (<= 128 main_i)) (or (<= main_n 41) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,932 INFO L273 TraceCheckUtils]: 64: Hoare triple {22868#(and (or (< 41 main_n) (<= 128 main_i)) (or (<= main_n 41) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22868#(and (or (< 41 main_n) (<= 128 main_i)) (or (<= main_n 41) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,933 INFO L273 TraceCheckUtils]: 65: Hoare triple {22868#(and (or (< 41 main_n) (<= 128 main_i)) (or (<= main_n 41) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22869#(and (or (<= 132 main_i) (< 41 main_n)) (or (<= main_i 132) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,934 INFO L273 TraceCheckUtils]: 66: Hoare triple {22869#(and (or (<= 132 main_i) (< 41 main_n)) (or (<= main_i 132) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22869#(and (or (<= 132 main_i) (< 41 main_n)) (or (<= main_i 132) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,935 INFO L273 TraceCheckUtils]: 67: Hoare triple {22869#(and (or (<= 132 main_i) (< 41 main_n)) (or (<= main_i 132) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22870#(and (or (<= main_i 136) (<= main_n 41)) (or (<= 136 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,936 INFO L273 TraceCheckUtils]: 68: Hoare triple {22870#(and (or (<= main_i 136) (<= main_n 41)) (or (<= 136 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22870#(and (or (<= main_i 136) (<= main_n 41)) (or (<= 136 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,937 INFO L273 TraceCheckUtils]: 69: Hoare triple {22870#(and (or (<= main_i 136) (<= main_n 41)) (or (<= 136 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22871#(and (or (<= main_n 41) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))) (or (< 41 main_n) (<= 140 main_i)))} is VALID [2019-02-27 13:01:16,938 INFO L273 TraceCheckUtils]: 70: Hoare triple {22871#(and (or (<= main_n 41) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))) (or (< 41 main_n) (<= 140 main_i)))} assume i <= n * 4; {22871#(and (or (<= main_n 41) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))) (or (< 41 main_n) (<= 140 main_i)))} is VALID [2019-02-27 13:01:16,939 INFO L273 TraceCheckUtils]: 71: Hoare triple {22871#(and (or (<= main_n 41) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))) (or (< 41 main_n) (<= 140 main_i)))} assume a[i] != 23;i := i + 4; {22872#(and (or (<= main_n 41) (<= main_i 144)) (or (<= 144 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,940 INFO L273 TraceCheckUtils]: 72: Hoare triple {22872#(and (or (<= main_n 41) (<= main_i 144)) (or (<= 144 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22872#(and (or (<= main_n 41) (<= main_i 144)) (or (<= 144 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,941 INFO L273 TraceCheckUtils]: 73: Hoare triple {22872#(and (or (<= main_n 41) (<= main_i 144)) (or (<= 144 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22873#(and (or (< 41 main_n) (<= 148 main_i)) (or (<= main_n 41) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,941 INFO L273 TraceCheckUtils]: 74: Hoare triple {22873#(and (or (< 41 main_n) (<= 148 main_i)) (or (<= main_n 41) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22873#(and (or (< 41 main_n) (<= 148 main_i)) (or (<= main_n 41) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,943 INFO L273 TraceCheckUtils]: 75: Hoare triple {22873#(and (or (< 41 main_n) (<= 148 main_i)) (or (<= main_n 41) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22874#(and (or (<= main_n 41) (<= main_i 152)) (or (<= 152 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,943 INFO L273 TraceCheckUtils]: 76: Hoare triple {22874#(and (or (<= main_n 41) (<= main_i 152)) (or (<= 152 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22874#(and (or (<= main_n 41) (<= main_i 152)) (or (<= 152 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,944 INFO L273 TraceCheckUtils]: 77: Hoare triple {22874#(and (or (<= main_n 41) (<= main_i 152)) (or (<= 152 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22875#(and (or (<= main_i 156) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 41 main_n)))} is VALID [2019-02-27 13:01:16,945 INFO L273 TraceCheckUtils]: 78: Hoare triple {22875#(and (or (<= main_i 156) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 41 main_n)))} assume i <= n * 4; {22875#(and (or (<= main_i 156) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 41 main_n)))} is VALID [2019-02-27 13:01:16,946 INFO L273 TraceCheckUtils]: 79: Hoare triple {22875#(and (or (<= main_i 156) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 41 main_n)))} assume a[i] != 23;i := i + 4; {22876#(and (or (<= main_n 41) (<= main_i 160)) (or (<= 160 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,947 INFO L273 TraceCheckUtils]: 80: Hoare triple {22876#(and (or (<= main_n 41) (<= main_i 160)) (or (<= 160 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22876#(and (or (<= main_n 41) (<= main_i 160)) (or (<= 160 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:16,948 INFO L273 TraceCheckUtils]: 81: Hoare triple {22876#(and (or (<= main_n 41) (<= main_i 160)) (or (<= 160 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22877#(and (or (= (* 4 main_n) main_i) (and (or (<= main_i 164) (<= main_n 41)) (or (<= (* 4 main_n) main_i) (< 41 main_n)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-02-27 13:01:16,949 INFO L273 TraceCheckUtils]: 82: Hoare triple {22877#(and (or (= (* 4 main_n) main_i) (and (or (<= main_i 164) (<= main_n 41)) (or (<= (* 4 main_n) main_i) (< 41 main_n)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume i <= n * 4; {22878#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 164) (< 41 main_n))))} is VALID [2019-02-27 13:01:16,950 INFO L273 TraceCheckUtils]: 83: Hoare triple {22878#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 164) (< 41 main_n))))} assume a[i] != 23;i := i + 4; {22879#(and (< 41 main_n) (<= main_i 168))} is VALID [2019-02-27 13:01:16,951 INFO L273 TraceCheckUtils]: 84: Hoare triple {22879#(and (< 41 main_n) (<= main_i 168))} assume !(i <= n * 4); {22835#false} is VALID [2019-02-27 13:01:16,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 1722 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:01:16,982 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 13:01:16,982 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 13:01:16,982 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 13:01:16,982 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 13:01:16,982 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 13:01:16,982 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 13:01:16,990 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-27 13:01:16,991 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-27 13:01:17,049 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 42 check-sat command(s) [2019-02-27 13:01:17,049 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 13:01:17,051 WARN L254 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 89 conjunts are in the unsatisfiable core [2019-02-27 13:01:17,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:01:17,074 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 13:01:17,128 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 13:01:17,130 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 13:01:17,136 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 13:01:17,137 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 13:01:17,139 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 13:01:17,139 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_45]. (and (= (store v_main_a_45 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-27 13:01:17,139 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 13:01:20,007 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 13:01:20,008 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 13:01:20,015 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 13:01:20,015 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 13:01:20,017 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 13:01:20,018 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= (select main_a 164) 23)) (<= 164 .cse0) (= 23 (select main_a .cse0)) (<= main_i 168))) [2019-02-27 13:01:20,018 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 164 .cse0) (not (= 164 .cse0)) (<= main_i 168))) [2019-02-27 13:01:20,075 INFO L273 TraceCheckUtils]: 0: Hoare triple {22834#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {22883#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,076 INFO L273 TraceCheckUtils]: 1: Hoare triple {22883#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22887#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 13:01:20,077 INFO L273 TraceCheckUtils]: 2: Hoare triple {22887#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {22887#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 13:01:20,077 INFO L273 TraceCheckUtils]: 3: Hoare triple {22887#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {22894#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,078 INFO L273 TraceCheckUtils]: 4: Hoare triple {22894#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22894#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,079 INFO L273 TraceCheckUtils]: 5: Hoare triple {22894#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22901#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 13:01:20,080 INFO L273 TraceCheckUtils]: 6: Hoare triple {22901#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {22901#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 13:01:20,080 INFO L273 TraceCheckUtils]: 7: Hoare triple {22901#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {22908#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,094 INFO L273 TraceCheckUtils]: 8: Hoare triple {22908#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22908#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,095 INFO L273 TraceCheckUtils]: 9: Hoare triple {22908#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22915#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,095 INFO L273 TraceCheckUtils]: 10: Hoare triple {22915#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22915#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,096 INFO L273 TraceCheckUtils]: 11: Hoare triple {22915#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22922#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,096 INFO L273 TraceCheckUtils]: 12: Hoare triple {22922#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22922#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,097 INFO L273 TraceCheckUtils]: 13: Hoare triple {22922#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22929#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,097 INFO L273 TraceCheckUtils]: 14: Hoare triple {22929#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22929#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,097 INFO L273 TraceCheckUtils]: 15: Hoare triple {22929#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22936#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,098 INFO L273 TraceCheckUtils]: 16: Hoare triple {22936#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22936#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,099 INFO L273 TraceCheckUtils]: 17: Hoare triple {22936#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22943#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,099 INFO L273 TraceCheckUtils]: 18: Hoare triple {22943#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22943#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,100 INFO L273 TraceCheckUtils]: 19: Hoare triple {22943#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22950#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,101 INFO L273 TraceCheckUtils]: 20: Hoare triple {22950#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22950#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,101 INFO L273 TraceCheckUtils]: 21: Hoare triple {22950#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22957#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,102 INFO L273 TraceCheckUtils]: 22: Hoare triple {22957#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22957#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,103 INFO L273 TraceCheckUtils]: 23: Hoare triple {22957#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22964#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,103 INFO L273 TraceCheckUtils]: 24: Hoare triple {22964#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22964#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,104 INFO L273 TraceCheckUtils]: 25: Hoare triple {22964#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22971#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,105 INFO L273 TraceCheckUtils]: 26: Hoare triple {22971#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22971#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,106 INFO L273 TraceCheckUtils]: 27: Hoare triple {22971#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22978#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,106 INFO L273 TraceCheckUtils]: 28: Hoare triple {22978#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22978#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,107 INFO L273 TraceCheckUtils]: 29: Hoare triple {22978#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22985#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,108 INFO L273 TraceCheckUtils]: 30: Hoare triple {22985#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22985#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,108 INFO L273 TraceCheckUtils]: 31: Hoare triple {22985#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22992#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,109 INFO L273 TraceCheckUtils]: 32: Hoare triple {22992#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22992#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,110 INFO L273 TraceCheckUtils]: 33: Hoare triple {22992#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22999#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,110 INFO L273 TraceCheckUtils]: 34: Hoare triple {22999#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22999#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,111 INFO L273 TraceCheckUtils]: 35: Hoare triple {22999#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23006#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,112 INFO L273 TraceCheckUtils]: 36: Hoare triple {23006#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23006#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,113 INFO L273 TraceCheckUtils]: 37: Hoare triple {23006#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23013#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,113 INFO L273 TraceCheckUtils]: 38: Hoare triple {23013#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23013#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,114 INFO L273 TraceCheckUtils]: 39: Hoare triple {23013#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23020#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 13:01:20,115 INFO L273 TraceCheckUtils]: 40: Hoare triple {23020#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {23020#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 13:01:20,115 INFO L273 TraceCheckUtils]: 41: Hoare triple {23020#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {23027#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,116 INFO L273 TraceCheckUtils]: 42: Hoare triple {23027#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23027#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,117 INFO L273 TraceCheckUtils]: 43: Hoare triple {23027#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23034#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,118 INFO L273 TraceCheckUtils]: 44: Hoare triple {23034#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23034#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,118 INFO L273 TraceCheckUtils]: 45: Hoare triple {23034#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23041#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,119 INFO L273 TraceCheckUtils]: 46: Hoare triple {23041#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23041#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,120 INFO L273 TraceCheckUtils]: 47: Hoare triple {23041#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23048#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,120 INFO L273 TraceCheckUtils]: 48: Hoare triple {23048#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23048#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,121 INFO L273 TraceCheckUtils]: 49: Hoare triple {23048#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23055#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,122 INFO L273 TraceCheckUtils]: 50: Hoare triple {23055#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23055#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,123 INFO L273 TraceCheckUtils]: 51: Hoare triple {23055#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23062#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,123 INFO L273 TraceCheckUtils]: 52: Hoare triple {23062#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23062#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,124 INFO L273 TraceCheckUtils]: 53: Hoare triple {23062#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23069#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,125 INFO L273 TraceCheckUtils]: 54: Hoare triple {23069#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23069#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,125 INFO L273 TraceCheckUtils]: 55: Hoare triple {23069#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23076#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,126 INFO L273 TraceCheckUtils]: 56: Hoare triple {23076#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23076#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,127 INFO L273 TraceCheckUtils]: 57: Hoare triple {23076#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23083#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,128 INFO L273 TraceCheckUtils]: 58: Hoare triple {23083#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23083#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,128 INFO L273 TraceCheckUtils]: 59: Hoare triple {23083#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23090#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,129 INFO L273 TraceCheckUtils]: 60: Hoare triple {23090#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23090#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,130 INFO L273 TraceCheckUtils]: 61: Hoare triple {23090#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23097#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,130 INFO L273 TraceCheckUtils]: 62: Hoare triple {23097#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23097#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,131 INFO L273 TraceCheckUtils]: 63: Hoare triple {23097#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23104#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,132 INFO L273 TraceCheckUtils]: 64: Hoare triple {23104#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23104#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,133 INFO L273 TraceCheckUtils]: 65: Hoare triple {23104#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23111#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,133 INFO L273 TraceCheckUtils]: 66: Hoare triple {23111#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23111#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,134 INFO L273 TraceCheckUtils]: 67: Hoare triple {23111#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23118#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,135 INFO L273 TraceCheckUtils]: 68: Hoare triple {23118#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23118#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,136 INFO L273 TraceCheckUtils]: 69: Hoare triple {23118#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23125#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 13:01:20,136 INFO L273 TraceCheckUtils]: 70: Hoare triple {23125#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {23125#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 13:01:20,137 INFO L273 TraceCheckUtils]: 71: Hoare triple {23125#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {23132#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,138 INFO L273 TraceCheckUtils]: 72: Hoare triple {23132#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23132#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,139 INFO L273 TraceCheckUtils]: 73: Hoare triple {23132#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23139#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,139 INFO L273 TraceCheckUtils]: 74: Hoare triple {23139#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23139#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,140 INFO L273 TraceCheckUtils]: 75: Hoare triple {23139#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23146#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,141 INFO L273 TraceCheckUtils]: 76: Hoare triple {23146#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23146#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,142 INFO L273 TraceCheckUtils]: 77: Hoare triple {23146#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23153#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,142 INFO L273 TraceCheckUtils]: 78: Hoare triple {23153#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23153#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,143 INFO L273 TraceCheckUtils]: 79: Hoare triple {23153#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23160#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,144 INFO L273 TraceCheckUtils]: 80: Hoare triple {23160#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23160#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:20,144 INFO L273 TraceCheckUtils]: 81: Hoare triple {23160#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23167#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-02-27 13:01:20,145 INFO L273 TraceCheckUtils]: 82: Hoare triple {23167#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {23171#(and (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-02-27 13:01:20,146 INFO L273 TraceCheckUtils]: 83: Hoare triple {23171#(and (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {22879#(and (< 41 main_n) (<= main_i 168))} is VALID [2019-02-27 13:01:20,147 INFO L273 TraceCheckUtils]: 84: Hoare triple {22879#(and (< 41 main_n) (<= main_i 168))} assume !(i <= n * 4); {22835#false} is VALID [2019-02-27 13:01:20,164 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 1722 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:01:20,165 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 13:01:25,415 INFO L273 TraceCheckUtils]: 84: Hoare triple {23178#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {22835#false} is VALID [2019-02-27 13:01:25,416 INFO L273 TraceCheckUtils]: 83: Hoare triple {23182#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {23178#(<= main_i (* 4 main_n))} is VALID [2019-02-27 13:01:25,416 INFO L273 TraceCheckUtils]: 82: Hoare triple {23186#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {23182#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:01:25,417 INFO L273 TraceCheckUtils]: 81: Hoare triple {23190#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {23186#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:01:25,417 INFO L273 TraceCheckUtils]: 80: Hoare triple {23190#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {23190#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:01:25,418 INFO L273 TraceCheckUtils]: 79: Hoare triple {23197#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {23190#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:01:25,418 INFO L273 TraceCheckUtils]: 78: Hoare triple {23197#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {23197#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:01:25,419 INFO L273 TraceCheckUtils]: 77: Hoare triple {23204#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {23197#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:01:25,420 INFO L273 TraceCheckUtils]: 76: Hoare triple {23204#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {23204#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:01:25,421 INFO L273 TraceCheckUtils]: 75: Hoare triple {23211#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {23204#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:01:25,421 INFO L273 TraceCheckUtils]: 74: Hoare triple {23211#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {23211#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:01:25,423 INFO L273 TraceCheckUtils]: 73: Hoare triple {23218#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23211#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:01:25,423 INFO L273 TraceCheckUtils]: 72: Hoare triple {23218#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {23218#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:01:25,424 INFO L273 TraceCheckUtils]: 71: Hoare triple {23225#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {23218#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:01:25,425 INFO L273 TraceCheckUtils]: 70: Hoare triple {23225#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {23225#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:01:25,426 INFO L273 TraceCheckUtils]: 69: Hoare triple {23232#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23225#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:01:25,426 INFO L273 TraceCheckUtils]: 68: Hoare triple {23232#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {23232#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:01:25,427 INFO L273 TraceCheckUtils]: 67: Hoare triple {23239#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23232#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:01:25,428 INFO L273 TraceCheckUtils]: 66: Hoare triple {23239#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {23239#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:01:25,429 INFO L273 TraceCheckUtils]: 65: Hoare triple {23246#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23239#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:01:25,429 INFO L273 TraceCheckUtils]: 64: Hoare triple {23246#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {23246#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:01:25,431 INFO L273 TraceCheckUtils]: 63: Hoare triple {23253#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {23246#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:01:25,431 INFO L273 TraceCheckUtils]: 62: Hoare triple {23253#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {23253#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:01:25,432 INFO L273 TraceCheckUtils]: 61: Hoare triple {23260#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23253#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:01:25,433 INFO L273 TraceCheckUtils]: 60: Hoare triple {23260#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {23260#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:01:25,434 INFO L273 TraceCheckUtils]: 59: Hoare triple {23267#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23260#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:01:25,434 INFO L273 TraceCheckUtils]: 58: Hoare triple {23267#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {23267#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:01:25,436 INFO L273 TraceCheckUtils]: 57: Hoare triple {23274#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {23267#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:01:25,436 INFO L273 TraceCheckUtils]: 56: Hoare triple {23274#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {23274#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:01:25,437 INFO L273 TraceCheckUtils]: 55: Hoare triple {23281#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23274#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:01:25,438 INFO L273 TraceCheckUtils]: 54: Hoare triple {23281#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {23281#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:01:25,439 INFO L273 TraceCheckUtils]: 53: Hoare triple {23288#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {23281#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:01:25,439 INFO L273 TraceCheckUtils]: 52: Hoare triple {23288#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {23288#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:01:25,440 INFO L273 TraceCheckUtils]: 51: Hoare triple {23295#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {23288#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:01:25,441 INFO L273 TraceCheckUtils]: 50: Hoare triple {23295#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {23295#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:01:25,442 INFO L273 TraceCheckUtils]: 49: Hoare triple {23302#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {23295#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:01:25,443 INFO L273 TraceCheckUtils]: 48: Hoare triple {23302#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {23302#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:01:25,444 INFO L273 TraceCheckUtils]: 47: Hoare triple {23309#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {23302#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:01:25,444 INFO L273 TraceCheckUtils]: 46: Hoare triple {23309#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {23309#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:01:25,445 INFO L273 TraceCheckUtils]: 45: Hoare triple {23316#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {23309#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:01:25,446 INFO L273 TraceCheckUtils]: 44: Hoare triple {23316#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {23316#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:01:25,447 INFO L273 TraceCheckUtils]: 43: Hoare triple {23323#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {23316#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:01:25,447 INFO L273 TraceCheckUtils]: 42: Hoare triple {23323#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {23323#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:01:25,448 INFO L273 TraceCheckUtils]: 41: Hoare triple {23330#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23323#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:01:25,449 INFO L273 TraceCheckUtils]: 40: Hoare triple {23330#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {23330#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:01:25,450 INFO L273 TraceCheckUtils]: 39: Hoare triple {23337#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23330#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:01:25,451 INFO L273 TraceCheckUtils]: 38: Hoare triple {23337#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {23337#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:01:25,452 INFO L273 TraceCheckUtils]: 37: Hoare triple {23344#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23337#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:01:25,452 INFO L273 TraceCheckUtils]: 36: Hoare triple {23344#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {23344#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:01:25,453 INFO L273 TraceCheckUtils]: 35: Hoare triple {23351#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {23344#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:01:25,468 INFO L273 TraceCheckUtils]: 34: Hoare triple {23351#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {23351#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:01:25,470 INFO L273 TraceCheckUtils]: 33: Hoare triple {23358#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23351#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:01:25,470 INFO L273 TraceCheckUtils]: 32: Hoare triple {23358#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {23358#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:01:25,471 INFO L273 TraceCheckUtils]: 31: Hoare triple {23365#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {23358#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:01:25,471 INFO L273 TraceCheckUtils]: 30: Hoare triple {23365#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {23365#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:01:25,472 INFO L273 TraceCheckUtils]: 29: Hoare triple {23372#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {23365#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:01:25,473 INFO L273 TraceCheckUtils]: 28: Hoare triple {23372#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {23372#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:01:25,474 INFO L273 TraceCheckUtils]: 27: Hoare triple {23379#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {23372#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:01:25,475 INFO L273 TraceCheckUtils]: 26: Hoare triple {23379#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {23379#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:01:25,476 INFO L273 TraceCheckUtils]: 25: Hoare triple {23386#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23379#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:01:25,476 INFO L273 TraceCheckUtils]: 24: Hoare triple {23386#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {23386#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:01:25,477 INFO L273 TraceCheckUtils]: 23: Hoare triple {23393#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23386#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:01:25,478 INFO L273 TraceCheckUtils]: 22: Hoare triple {23393#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {23393#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:01:25,479 INFO L273 TraceCheckUtils]: 21: Hoare triple {23400#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {23393#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:01:25,479 INFO L273 TraceCheckUtils]: 20: Hoare triple {23400#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {23400#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:01:25,480 INFO L273 TraceCheckUtils]: 19: Hoare triple {23407#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23400#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:01:25,481 INFO L273 TraceCheckUtils]: 18: Hoare triple {23407#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {23407#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:01:25,482 INFO L273 TraceCheckUtils]: 17: Hoare triple {23414#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {23407#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:01:25,483 INFO L273 TraceCheckUtils]: 16: Hoare triple {23414#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {23414#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:01:25,484 INFO L273 TraceCheckUtils]: 15: Hoare triple {23421#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {23414#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:01:25,484 INFO L273 TraceCheckUtils]: 14: Hoare triple {23421#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {23421#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:01:25,485 INFO L273 TraceCheckUtils]: 13: Hoare triple {23428#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {23421#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:01:25,486 INFO L273 TraceCheckUtils]: 12: Hoare triple {23428#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {23428#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:01:25,487 INFO L273 TraceCheckUtils]: 11: Hoare triple {23435#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {23428#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:01:25,488 INFO L273 TraceCheckUtils]: 10: Hoare triple {23435#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {23435#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:01:25,489 INFO L273 TraceCheckUtils]: 9: Hoare triple {23442#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {23435#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:01:25,489 INFO L273 TraceCheckUtils]: 8: Hoare triple {23442#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {23442#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-02-27 13:01:25,490 INFO L273 TraceCheckUtils]: 7: Hoare triple {23449#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {23442#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-02-27 13:01:25,491 INFO L273 TraceCheckUtils]: 6: Hoare triple {23449#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {23449#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-02-27 13:01:25,492 INFO L273 TraceCheckUtils]: 5: Hoare triple {23456#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {23449#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-02-27 13:01:25,492 INFO L273 TraceCheckUtils]: 4: Hoare triple {23456#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {23456#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-02-27 13:01:25,493 INFO L273 TraceCheckUtils]: 3: Hoare triple {23463#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {23456#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-02-27 13:01:25,494 INFO L273 TraceCheckUtils]: 2: Hoare triple {23463#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {23463#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-02-27 13:01:25,495 INFO L273 TraceCheckUtils]: 1: Hoare triple {23470#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {23463#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-02-27 13:01:25,496 INFO L273 TraceCheckUtils]: 0: Hoare triple {22834#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {23470#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-02-27 13:01:25,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 1722 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:01:25,541 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 13:01:25,541 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44, 44] total 131 [2019-02-27 13:01:25,542 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 13:01:25,542 INFO L78 Accepts]: Start accepts. Automaton has 89 states. Word has length 85 [2019-02-27 13:01:25,542 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 13:01:25,542 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 89 states. [2019-02-27 13:01:25,782 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 169 edges. 169 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 13:01:25,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 89 states [2019-02-27 13:01:25,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2019-02-27 13:01:25,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2164, Invalid=15392, Unknown=0, NotChecked=0, Total=17556 [2019-02-27 13:01:25,784 INFO L87 Difference]: Start difference. First operand 86 states and 86 transitions. Second operand 89 states. [2019-02-27 13:01:38,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:01:38,381 INFO L93 Difference]: Finished difference Result 90 states and 90 transitions. [2019-02-27 13:01:38,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2019-02-27 13:01:38,381 INFO L78 Accepts]: Start accepts. Automaton has 89 states. Word has length 85 [2019-02-27 13:01:38,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 13:01:38,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2019-02-27 13:01:38,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 90 transitions. [2019-02-27 13:01:38,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2019-02-27 13:01:38,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 90 transitions. [2019-02-27 13:01:38,384 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 46 states and 90 transitions. [2019-02-27 13:01:38,499 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 90 edges. 90 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 13:01:38,501 INFO L225 Difference]: With dead ends: 90 [2019-02-27 13:01:38,501 INFO L226 Difference]: Without dead ends: 89 [2019-02-27 13:01:38,502 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 80 SyntacticMatches, 1 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3956 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=2164, Invalid=15392, Unknown=0, NotChecked=0, Total=17556 [2019-02-27 13:01:38,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-02-27 13:01:38,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 88. [2019-02-27 13:01:38,583 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 13:01:38,583 INFO L82 GeneralOperation]: Start isEquivalent. First operand 89 states. Second operand 88 states. [2019-02-27 13:01:38,583 INFO L74 IsIncluded]: Start isIncluded. First operand 89 states. Second operand 88 states. [2019-02-27 13:01:38,583 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 88 states. [2019-02-27 13:01:38,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:01:38,585 INFO L93 Difference]: Finished difference Result 89 states and 89 transitions. [2019-02-27 13:01:38,585 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 89 transitions. [2019-02-27 13:01:38,585 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 13:01:38,585 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 13:01:38,586 INFO L74 IsIncluded]: Start isIncluded. First operand 88 states. Second operand 89 states. [2019-02-27 13:01:38,586 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 89 states. [2019-02-27 13:01:38,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:01:38,587 INFO L93 Difference]: Finished difference Result 89 states and 89 transitions. [2019-02-27 13:01:38,587 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 89 transitions. [2019-02-27 13:01:38,587 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 13:01:38,587 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 13:01:38,587 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 13:01:38,587 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 13:01:38,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-02-27 13:01:38,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 88 transitions. [2019-02-27 13:01:38,588 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 88 transitions. Word has length 85 [2019-02-27 13:01:38,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 13:01:38,588 INFO L480 AbstractCegarLoop]: Abstraction has 88 states and 88 transitions. [2019-02-27 13:01:38,589 INFO L481 AbstractCegarLoop]: Interpolant automaton has 89 states. [2019-02-27 13:01:38,589 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 88 transitions. [2019-02-27 13:01:38,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-02-27 13:01:38,589 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 13:01:38,589 INFO L402 BasicCegarLoop]: trace histogram [43, 42, 1, 1] [2019-02-27 13:01:38,589 INFO L423 AbstractCegarLoop]: === Iteration 43 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 13:01:38,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 13:01:38,589 INFO L82 PathProgramCache]: Analyzing trace with hash -335716044, now seen corresponding path program 42 times [2019-02-27 13:01:38,590 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 13:01:38,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 13:01:38,590 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 13:01:38,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 13:01:38,591 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 13:01:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:01:39,018 WARN L181 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-02-27 13:01:41,241 INFO L273 TraceCheckUtils]: 0: Hoare triple {23916#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {23918#(and (or (<= 0 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,242 INFO L273 TraceCheckUtils]: 1: Hoare triple {23918#(and (or (<= 0 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23919#(and (or (<= main_n 42) (<= main_i 4)) (or (<= 4 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,243 INFO L273 TraceCheckUtils]: 2: Hoare triple {23919#(and (or (<= main_n 42) (<= main_i 4)) (or (<= 4 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23919#(and (or (<= main_n 42) (<= main_i 4)) (or (<= 4 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,244 INFO L273 TraceCheckUtils]: 3: Hoare triple {23919#(and (or (<= main_n 42) (<= main_i 4)) (or (<= 4 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23920#(and (or (<= 8 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 8)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,245 INFO L273 TraceCheckUtils]: 4: Hoare triple {23920#(and (or (<= 8 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 8)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23920#(and (or (<= 8 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 8)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,246 INFO L273 TraceCheckUtils]: 5: Hoare triple {23920#(and (or (<= 8 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 8)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23921#(and (or (<= 12 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,247 INFO L273 TraceCheckUtils]: 6: Hoare triple {23921#(and (or (<= 12 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23921#(and (or (<= 12 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,248 INFO L273 TraceCheckUtils]: 7: Hoare triple {23921#(and (or (<= 12 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23922#(and (or (<= main_n 42) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (<= 16 main_i) (< 42 main_n)))} is VALID [2019-02-27 13:01:41,248 INFO L273 TraceCheckUtils]: 8: Hoare triple {23922#(and (or (<= main_n 42) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (<= 16 main_i) (< 42 main_n)))} assume i <= n * 4; {23922#(and (or (<= main_n 42) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (<= 16 main_i) (< 42 main_n)))} is VALID [2019-02-27 13:01:41,249 INFO L273 TraceCheckUtils]: 9: Hoare triple {23922#(and (or (<= main_n 42) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (<= 16 main_i) (< 42 main_n)))} assume a[i] != 23;i := i + 4; {23923#(and (or (<= main_n 42) (<= main_i 20)) (or (<= 20 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,250 INFO L273 TraceCheckUtils]: 10: Hoare triple {23923#(and (or (<= main_n 42) (<= main_i 20)) (or (<= 20 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23923#(and (or (<= main_n 42) (<= main_i 20)) (or (<= 20 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,251 INFO L273 TraceCheckUtils]: 11: Hoare triple {23923#(and (or (<= main_n 42) (<= main_i 20)) (or (<= 20 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23924#(and (or (<= 24 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,252 INFO L273 TraceCheckUtils]: 12: Hoare triple {23924#(and (or (<= 24 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23924#(and (or (<= 24 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,253 INFO L273 TraceCheckUtils]: 13: Hoare triple {23924#(and (or (<= 24 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23925#(and (or (<= main_n 42) (<= main_i 28)) (or (<= 28 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,254 INFO L273 TraceCheckUtils]: 14: Hoare triple {23925#(and (or (<= main_n 42) (<= main_i 28)) (or (<= 28 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23925#(and (or (<= main_n 42) (<= main_i 28)) (or (<= 28 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,255 INFO L273 TraceCheckUtils]: 15: Hoare triple {23925#(and (or (<= main_n 42) (<= main_i 28)) (or (<= 28 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23926#(and (or (<= main_i 32) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))) (or (<= 32 main_i) (< 42 main_n)))} is VALID [2019-02-27 13:01:41,255 INFO L273 TraceCheckUtils]: 16: Hoare triple {23926#(and (or (<= main_i 32) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))) (or (<= 32 main_i) (< 42 main_n)))} assume i <= n * 4; {23926#(and (or (<= main_i 32) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))) (or (<= 32 main_i) (< 42 main_n)))} is VALID [2019-02-27 13:01:41,256 INFO L273 TraceCheckUtils]: 17: Hoare triple {23926#(and (or (<= main_i 32) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))) (or (<= 32 main_i) (< 42 main_n)))} assume a[i] != 23;i := i + 4; {23927#(and (or (< 42 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,257 INFO L273 TraceCheckUtils]: 18: Hoare triple {23927#(and (or (< 42 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23927#(and (or (< 42 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,258 INFO L273 TraceCheckUtils]: 19: Hoare triple {23927#(and (or (< 42 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23928#(and (or (<= 40 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,259 INFO L273 TraceCheckUtils]: 20: Hoare triple {23928#(and (or (<= 40 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23928#(and (or (<= 40 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,260 INFO L273 TraceCheckUtils]: 21: Hoare triple {23928#(and (or (<= 40 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23929#(and (or (<= 44 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,261 INFO L273 TraceCheckUtils]: 22: Hoare triple {23929#(and (or (<= 44 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23929#(and (or (<= 44 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,262 INFO L273 TraceCheckUtils]: 23: Hoare triple {23929#(and (or (<= 44 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23930#(and (or (<= main_n 42) (<= main_i 48)) (or (<= 48 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,263 INFO L273 TraceCheckUtils]: 24: Hoare triple {23930#(and (or (<= main_n 42) (<= main_i 48)) (or (<= 48 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23930#(and (or (<= main_n 42) (<= main_i 48)) (or (<= 48 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,264 INFO L273 TraceCheckUtils]: 25: Hoare triple {23930#(and (or (<= main_n 42) (<= main_i 48)) (or (<= 48 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23931#(and (or (<= main_n 42) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (<= 52 main_i) (< 42 main_n)))} is VALID [2019-02-27 13:01:41,264 INFO L273 TraceCheckUtils]: 26: Hoare triple {23931#(and (or (<= main_n 42) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (<= 52 main_i) (< 42 main_n)))} assume i <= n * 4; {23931#(and (or (<= main_n 42) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (<= 52 main_i) (< 42 main_n)))} is VALID [2019-02-27 13:01:41,265 INFO L273 TraceCheckUtils]: 27: Hoare triple {23931#(and (or (<= main_n 42) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (<= 52 main_i) (< 42 main_n)))} assume a[i] != 23;i := i + 4; {23932#(and (or (<= main_n 42) (<= main_i 56)) (or (<= 56 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,266 INFO L273 TraceCheckUtils]: 28: Hoare triple {23932#(and (or (<= main_n 42) (<= main_i 56)) (or (<= 56 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23932#(and (or (<= main_n 42) (<= main_i 56)) (or (<= 56 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,267 INFO L273 TraceCheckUtils]: 29: Hoare triple {23932#(and (or (<= main_n 42) (<= main_i 56)) (or (<= 56 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23933#(and (or (<= main_n 42) (<= main_i 60)) (or (<= 60 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,268 INFO L273 TraceCheckUtils]: 30: Hoare triple {23933#(and (or (<= main_n 42) (<= main_i 60)) (or (<= 60 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23933#(and (or (<= main_n 42) (<= main_i 60)) (or (<= 60 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,269 INFO L273 TraceCheckUtils]: 31: Hoare triple {23933#(and (or (<= main_n 42) (<= main_i 60)) (or (<= 60 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23934#(and (or (<= main_n 42) (<= main_i 64)) (or (<= 64 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,270 INFO L273 TraceCheckUtils]: 32: Hoare triple {23934#(and (or (<= main_n 42) (<= main_i 64)) (or (<= 64 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23934#(and (or (<= main_n 42) (<= main_i 64)) (or (<= 64 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,271 INFO L273 TraceCheckUtils]: 33: Hoare triple {23934#(and (or (<= main_n 42) (<= main_i 64)) (or (<= 64 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23935#(and (or (<= main_n 42) (<= main_i 68)) (or (<= 68 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,271 INFO L273 TraceCheckUtils]: 34: Hoare triple {23935#(and (or (<= main_n 42) (<= main_i 68)) (or (<= 68 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23935#(and (or (<= main_n 42) (<= main_i 68)) (or (<= 68 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,272 INFO L273 TraceCheckUtils]: 35: Hoare triple {23935#(and (or (<= main_n 42) (<= main_i 68)) (or (<= 68 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23936#(and (or (<= main_n 42) (<= main_i 72)) (or (<= 72 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,273 INFO L273 TraceCheckUtils]: 36: Hoare triple {23936#(and (or (<= main_n 42) (<= main_i 72)) (or (<= 72 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23936#(and (or (<= main_n 42) (<= main_i 72)) (or (<= 72 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,274 INFO L273 TraceCheckUtils]: 37: Hoare triple {23936#(and (or (<= main_n 42) (<= main_i 72)) (or (<= 72 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23937#(and (or (<= main_i 76) (<= main_n 42)) (or (<= 76 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,275 INFO L273 TraceCheckUtils]: 38: Hoare triple {23937#(and (or (<= main_i 76) (<= main_n 42)) (or (<= 76 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23937#(and (or (<= main_i 76) (<= main_n 42)) (or (<= 76 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,276 INFO L273 TraceCheckUtils]: 39: Hoare triple {23937#(and (or (<= main_i 76) (<= main_n 42)) (or (<= 76 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23938#(and (or (<= 80 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 42) (<= main_i 80)))} is VALID [2019-02-27 13:01:41,277 INFO L273 TraceCheckUtils]: 40: Hoare triple {23938#(and (or (<= 80 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 42) (<= main_i 80)))} assume i <= n * 4; {23938#(and (or (<= 80 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 42) (<= main_i 80)))} is VALID [2019-02-27 13:01:41,278 INFO L273 TraceCheckUtils]: 41: Hoare triple {23938#(and (or (<= 80 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 42) (<= main_i 80)))} assume a[i] != 23;i := i + 4; {23939#(and (or (< 42 main_n) (<= 84 main_i)) (or (<= main_n 42) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,278 INFO L273 TraceCheckUtils]: 42: Hoare triple {23939#(and (or (< 42 main_n) (<= 84 main_i)) (or (<= main_n 42) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23939#(and (or (< 42 main_n) (<= 84 main_i)) (or (<= main_n 42) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,279 INFO L273 TraceCheckUtils]: 43: Hoare triple {23939#(and (or (< 42 main_n) (<= 84 main_i)) (or (<= main_n 42) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23940#(and (or (<= main_i 88) (<= main_n 42)) (or (<= 88 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,280 INFO L273 TraceCheckUtils]: 44: Hoare triple {23940#(and (or (<= main_i 88) (<= main_n 42)) (or (<= 88 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23940#(and (or (<= main_i 88) (<= main_n 42)) (or (<= 88 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,281 INFO L273 TraceCheckUtils]: 45: Hoare triple {23940#(and (or (<= main_i 88) (<= main_n 42)) (or (<= 88 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23941#(and (or (<= 92 main_i) (< 42 main_n)) (or (<= main_i 92) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,282 INFO L273 TraceCheckUtils]: 46: Hoare triple {23941#(and (or (<= 92 main_i) (< 42 main_n)) (or (<= main_i 92) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23941#(and (or (<= 92 main_i) (< 42 main_n)) (or (<= main_i 92) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,283 INFO L273 TraceCheckUtils]: 47: Hoare triple {23941#(and (or (<= 92 main_i) (< 42 main_n)) (or (<= main_i 92) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23942#(and (or (<= 96 main_i) (< 42 main_n)) (or (<= main_i 96) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,284 INFO L273 TraceCheckUtils]: 48: Hoare triple {23942#(and (or (<= 96 main_i) (< 42 main_n)) (or (<= main_i 96) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23942#(and (or (<= 96 main_i) (< 42 main_n)) (or (<= main_i 96) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,285 INFO L273 TraceCheckUtils]: 49: Hoare triple {23942#(and (or (<= 96 main_i) (< 42 main_n)) (or (<= main_i 96) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23943#(and (or (<= main_n 42) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))) (or (<= 100 main_i) (< 42 main_n)))} is VALID [2019-02-27 13:01:41,286 INFO L273 TraceCheckUtils]: 50: Hoare triple {23943#(and (or (<= main_n 42) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))) (or (<= 100 main_i) (< 42 main_n)))} assume i <= n * 4; {23943#(and (or (<= main_n 42) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))) (or (<= 100 main_i) (< 42 main_n)))} is VALID [2019-02-27 13:01:41,287 INFO L273 TraceCheckUtils]: 51: Hoare triple {23943#(and (or (<= main_n 42) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))) (or (<= 100 main_i) (< 42 main_n)))} assume a[i] != 23;i := i + 4; {23944#(and (or (<= main_i 104) (<= main_n 42)) (or (<= 104 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,288 INFO L273 TraceCheckUtils]: 52: Hoare triple {23944#(and (or (<= main_i 104) (<= main_n 42)) (or (<= 104 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23944#(and (or (<= main_i 104) (<= main_n 42)) (or (<= 104 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,289 INFO L273 TraceCheckUtils]: 53: Hoare triple {23944#(and (or (<= main_i 104) (<= main_n 42)) (or (<= 104 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23945#(and (or (<= main_n 42) (<= main_i 108)) (or (<= 108 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,289 INFO L273 TraceCheckUtils]: 54: Hoare triple {23945#(and (or (<= main_n 42) (<= main_i 108)) (or (<= 108 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23945#(and (or (<= main_n 42) (<= main_i 108)) (or (<= 108 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,290 INFO L273 TraceCheckUtils]: 55: Hoare triple {23945#(and (or (<= main_n 42) (<= main_i 108)) (or (<= 108 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23946#(and (or (< 42 main_n) (<= 112 main_i)) (or (<= main_n 42) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,291 INFO L273 TraceCheckUtils]: 56: Hoare triple {23946#(and (or (< 42 main_n) (<= 112 main_i)) (or (<= main_n 42) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23946#(and (or (< 42 main_n) (<= 112 main_i)) (or (<= main_n 42) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,292 INFO L273 TraceCheckUtils]: 57: Hoare triple {23946#(and (or (< 42 main_n) (<= 112 main_i)) (or (<= main_n 42) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23947#(and (or (<= 116 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,293 INFO L273 TraceCheckUtils]: 58: Hoare triple {23947#(and (or (<= 116 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23947#(and (or (<= 116 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,294 INFO L273 TraceCheckUtils]: 59: Hoare triple {23947#(and (or (<= 116 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23948#(and (or (<= 120 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,295 INFO L273 TraceCheckUtils]: 60: Hoare triple {23948#(and (or (<= 120 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23948#(and (or (<= 120 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,296 INFO L273 TraceCheckUtils]: 61: Hoare triple {23948#(and (or (<= 120 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23949#(and (or (<= main_n 42) (<= main_i 124)) (or (<= 124 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,296 INFO L273 TraceCheckUtils]: 62: Hoare triple {23949#(and (or (<= main_n 42) (<= main_i 124)) (or (<= 124 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23949#(and (or (<= main_n 42) (<= main_i 124)) (or (<= 124 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,297 INFO L273 TraceCheckUtils]: 63: Hoare triple {23949#(and (or (<= main_n 42) (<= main_i 124)) (or (<= 124 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23950#(and (or (<= main_n 42) (<= main_i 128)) (or (<= 128 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,298 INFO L273 TraceCheckUtils]: 64: Hoare triple {23950#(and (or (<= main_n 42) (<= main_i 128)) (or (<= 128 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23950#(and (or (<= main_n 42) (<= main_i 128)) (or (<= 128 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,299 INFO L273 TraceCheckUtils]: 65: Hoare triple {23950#(and (or (<= main_n 42) (<= main_i 128)) (or (<= 128 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23951#(and (or (<= 132 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 132)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,300 INFO L273 TraceCheckUtils]: 66: Hoare triple {23951#(and (or (<= 132 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 132)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23951#(and (or (<= 132 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 132)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,301 INFO L273 TraceCheckUtils]: 67: Hoare triple {23951#(and (or (<= 132 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 132)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23952#(and (or (<= main_i 136) (<= main_n 42)) (or (<= 136 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,302 INFO L273 TraceCheckUtils]: 68: Hoare triple {23952#(and (or (<= main_i 136) (<= main_n 42)) (or (<= 136 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23952#(and (or (<= main_i 136) (<= main_n 42)) (or (<= 136 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,303 INFO L273 TraceCheckUtils]: 69: Hoare triple {23952#(and (or (<= main_i 136) (<= main_n 42)) (or (<= 136 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23953#(and (or (< 42 main_n) (<= 140 main_i)) (or (<= main_n 42) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,303 INFO L273 TraceCheckUtils]: 70: Hoare triple {23953#(and (or (< 42 main_n) (<= 140 main_i)) (or (<= main_n 42) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23953#(and (or (< 42 main_n) (<= 140 main_i)) (or (<= main_n 42) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,304 INFO L273 TraceCheckUtils]: 71: Hoare triple {23953#(and (or (< 42 main_n) (<= 140 main_i)) (or (<= main_n 42) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23954#(and (or (<= 144 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,305 INFO L273 TraceCheckUtils]: 72: Hoare triple {23954#(and (or (<= 144 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23954#(and (or (<= 144 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,306 INFO L273 TraceCheckUtils]: 73: Hoare triple {23954#(and (or (<= 144 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23955#(and (or (<= 148 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,307 INFO L273 TraceCheckUtils]: 74: Hoare triple {23955#(and (or (<= 148 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23955#(and (or (<= 148 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,308 INFO L273 TraceCheckUtils]: 75: Hoare triple {23955#(and (or (<= 148 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23956#(and (or (<= main_n 42) (<= main_i 152)) (or (<= 152 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,309 INFO L273 TraceCheckUtils]: 76: Hoare triple {23956#(and (or (<= main_n 42) (<= main_i 152)) (or (<= 152 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23956#(and (or (<= main_n 42) (<= main_i 152)) (or (<= 152 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,310 INFO L273 TraceCheckUtils]: 77: Hoare triple {23956#(and (or (<= main_n 42) (<= main_i 152)) (or (<= 152 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23957#(and (or (<= main_n 42) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 42 main_n)))} is VALID [2019-02-27 13:01:41,311 INFO L273 TraceCheckUtils]: 78: Hoare triple {23957#(and (or (<= main_n 42) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 42 main_n)))} assume i <= n * 4; {23957#(and (or (<= main_n 42) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 42 main_n)))} is VALID [2019-02-27 13:01:41,312 INFO L273 TraceCheckUtils]: 79: Hoare triple {23957#(and (or (<= main_n 42) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 42 main_n)))} assume a[i] != 23;i := i + 4; {23958#(and (or (<= main_n 42) (<= main_i 160)) (or (<= 160 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,312 INFO L273 TraceCheckUtils]: 80: Hoare triple {23958#(and (or (<= main_n 42) (<= main_i 160)) (or (<= 160 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23958#(and (or (<= main_n 42) (<= main_i 160)) (or (<= 160 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,314 INFO L273 TraceCheckUtils]: 81: Hoare triple {23958#(and (or (<= main_n 42) (<= main_i 160)) (or (<= 160 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23959#(and (or (<= main_n 42) (<= main_i 164)) (or (<= 164 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,314 INFO L273 TraceCheckUtils]: 82: Hoare triple {23959#(and (or (<= main_n 42) (<= main_i 164)) (or (<= 164 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23959#(and (or (<= main_n 42) (<= main_i 164)) (or (<= 164 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:41,316 INFO L273 TraceCheckUtils]: 83: Hoare triple {23959#(and (or (<= main_n 42) (<= main_i 164)) (or (<= 164 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23960#(and (or (= (* 4 main_n) main_i) (and (or (<= main_n 42) (<= main_i 168)) (or (<= (* 4 main_n) main_i) (< 42 main_n)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-02-27 13:01:41,317 INFO L273 TraceCheckUtils]: 84: Hoare triple {23960#(and (or (= (* 4 main_n) main_i) (and (or (<= main_n 42) (<= main_i 168)) (or (<= (* 4 main_n) main_i) (< 42 main_n)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume i <= n * 4; {23961#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 168) (< 42 main_n))))} is VALID [2019-02-27 13:01:41,318 INFO L273 TraceCheckUtils]: 85: Hoare triple {23961#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 168) (< 42 main_n))))} assume a[i] != 23;i := i + 4; {23962#(and (<= main_i 172) (< 42 main_n))} is VALID [2019-02-27 13:01:41,318 INFO L273 TraceCheckUtils]: 86: Hoare triple {23962#(and (<= main_i 172) (< 42 main_n))} assume !(i <= n * 4); {23917#false} is VALID [2019-02-27 13:01:41,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1806 backedges. 0 proven. 1806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:01:41,352 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 13:01:41,352 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 13:01:41,352 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 13:01:41,352 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 13:01:41,352 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 13:01:41,352 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 13:01:41,362 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-27 13:01:41,363 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-27 13:01:41,386 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-27 13:01:41,386 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 13:01:41,388 WARN L254 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 91 conjunts are in the unsatisfiable core [2019-02-27 13:01:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:01:41,430 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 13:01:41,536 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 13:01:41,553 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 13:01:41,629 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 13:01:41,629 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 13:01:41,631 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 13:01:41,631 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_46]. (and (= (store v_main_a_46 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-27 13:01:41,631 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 13:01:44,830 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 13:01:44,832 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 13:01:44,838 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 13:01:44,838 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 13:01:44,840 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 13:01:44,841 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= (select main_a 168) 23)) (<= 168 .cse0) (<= main_i 172) (= 23 (select main_a .cse0)))) [2019-02-27 13:01:44,841 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 168 .cse0) (not (= 168 .cse0)) (<= main_i 172))) [2019-02-27 13:01:44,897 INFO L273 TraceCheckUtils]: 0: Hoare triple {23916#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {23966#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,897 INFO L273 TraceCheckUtils]: 1: Hoare triple {23966#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23970#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 13:01:44,898 INFO L273 TraceCheckUtils]: 2: Hoare triple {23970#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {23970#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 13:01:44,898 INFO L273 TraceCheckUtils]: 3: Hoare triple {23970#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {23977#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,898 INFO L273 TraceCheckUtils]: 4: Hoare triple {23977#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23977#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,899 INFO L273 TraceCheckUtils]: 5: Hoare triple {23977#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23984#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 13:01:44,900 INFO L273 TraceCheckUtils]: 6: Hoare triple {23984#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {23984#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 13:01:44,921 INFO L273 TraceCheckUtils]: 7: Hoare triple {23984#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {23991#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,936 INFO L273 TraceCheckUtils]: 8: Hoare triple {23991#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23991#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,945 INFO L273 TraceCheckUtils]: 9: Hoare triple {23991#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23998#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,945 INFO L273 TraceCheckUtils]: 10: Hoare triple {23998#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23998#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,946 INFO L273 TraceCheckUtils]: 11: Hoare triple {23998#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24005#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,946 INFO L273 TraceCheckUtils]: 12: Hoare triple {24005#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24005#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,947 INFO L273 TraceCheckUtils]: 13: Hoare triple {24005#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24012#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,947 INFO L273 TraceCheckUtils]: 14: Hoare triple {24012#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24012#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,948 INFO L273 TraceCheckUtils]: 15: Hoare triple {24012#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24019#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,948 INFO L273 TraceCheckUtils]: 16: Hoare triple {24019#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24019#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,948 INFO L273 TraceCheckUtils]: 17: Hoare triple {24019#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24026#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,949 INFO L273 TraceCheckUtils]: 18: Hoare triple {24026#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24026#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,949 INFO L273 TraceCheckUtils]: 19: Hoare triple {24026#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24033#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,950 INFO L273 TraceCheckUtils]: 20: Hoare triple {24033#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24033#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,950 INFO L273 TraceCheckUtils]: 21: Hoare triple {24033#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24040#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,951 INFO L273 TraceCheckUtils]: 22: Hoare triple {24040#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24040#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,952 INFO L273 TraceCheckUtils]: 23: Hoare triple {24040#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24047#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,952 INFO L273 TraceCheckUtils]: 24: Hoare triple {24047#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24047#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,953 INFO L273 TraceCheckUtils]: 25: Hoare triple {24047#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24054#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,954 INFO L273 TraceCheckUtils]: 26: Hoare triple {24054#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24054#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,954 INFO L273 TraceCheckUtils]: 27: Hoare triple {24054#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24061#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,955 INFO L273 TraceCheckUtils]: 28: Hoare triple {24061#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24061#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,956 INFO L273 TraceCheckUtils]: 29: Hoare triple {24061#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24068#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,956 INFO L273 TraceCheckUtils]: 30: Hoare triple {24068#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24068#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,957 INFO L273 TraceCheckUtils]: 31: Hoare triple {24068#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24075#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,958 INFO L273 TraceCheckUtils]: 32: Hoare triple {24075#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24075#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,959 INFO L273 TraceCheckUtils]: 33: Hoare triple {24075#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24082#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,959 INFO L273 TraceCheckUtils]: 34: Hoare triple {24082#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24082#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,960 INFO L273 TraceCheckUtils]: 35: Hoare triple {24082#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24089#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,961 INFO L273 TraceCheckUtils]: 36: Hoare triple {24089#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24089#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,961 INFO L273 TraceCheckUtils]: 37: Hoare triple {24089#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24096#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,962 INFO L273 TraceCheckUtils]: 38: Hoare triple {24096#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24096#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,963 INFO L273 TraceCheckUtils]: 39: Hoare triple {24096#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24103#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 13:01:44,964 INFO L273 TraceCheckUtils]: 40: Hoare triple {24103#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {24103#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 13:01:44,964 INFO L273 TraceCheckUtils]: 41: Hoare triple {24103#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {24110#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,965 INFO L273 TraceCheckUtils]: 42: Hoare triple {24110#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24110#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,966 INFO L273 TraceCheckUtils]: 43: Hoare triple {24110#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24117#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,967 INFO L273 TraceCheckUtils]: 44: Hoare triple {24117#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24117#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,967 INFO L273 TraceCheckUtils]: 45: Hoare triple {24117#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24124#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,968 INFO L273 TraceCheckUtils]: 46: Hoare triple {24124#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24124#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,969 INFO L273 TraceCheckUtils]: 47: Hoare triple {24124#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24131#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,969 INFO L273 TraceCheckUtils]: 48: Hoare triple {24131#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24131#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,970 INFO L273 TraceCheckUtils]: 49: Hoare triple {24131#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24138#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,971 INFO L273 TraceCheckUtils]: 50: Hoare triple {24138#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24138#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,971 INFO L273 TraceCheckUtils]: 51: Hoare triple {24138#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24145#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,972 INFO L273 TraceCheckUtils]: 52: Hoare triple {24145#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24145#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,973 INFO L273 TraceCheckUtils]: 53: Hoare triple {24145#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24152#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,974 INFO L273 TraceCheckUtils]: 54: Hoare triple {24152#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24152#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,974 INFO L273 TraceCheckUtils]: 55: Hoare triple {24152#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24159#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,975 INFO L273 TraceCheckUtils]: 56: Hoare triple {24159#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24159#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,976 INFO L273 TraceCheckUtils]: 57: Hoare triple {24159#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24166#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,976 INFO L273 TraceCheckUtils]: 58: Hoare triple {24166#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24166#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,977 INFO L273 TraceCheckUtils]: 59: Hoare triple {24166#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24173#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,978 INFO L273 TraceCheckUtils]: 60: Hoare triple {24173#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24173#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,979 INFO L273 TraceCheckUtils]: 61: Hoare triple {24173#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24180#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,979 INFO L273 TraceCheckUtils]: 62: Hoare triple {24180#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24180#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,980 INFO L273 TraceCheckUtils]: 63: Hoare triple {24180#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24187#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,981 INFO L273 TraceCheckUtils]: 64: Hoare triple {24187#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24187#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,982 INFO L273 TraceCheckUtils]: 65: Hoare triple {24187#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24194#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,982 INFO L273 TraceCheckUtils]: 66: Hoare triple {24194#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24194#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,983 INFO L273 TraceCheckUtils]: 67: Hoare triple {24194#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24201#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,984 INFO L273 TraceCheckUtils]: 68: Hoare triple {24201#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24201#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,985 INFO L273 TraceCheckUtils]: 69: Hoare triple {24201#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24208#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 13:01:44,985 INFO L273 TraceCheckUtils]: 70: Hoare triple {24208#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {24208#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 13:01:44,986 INFO L273 TraceCheckUtils]: 71: Hoare triple {24208#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {24215#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,987 INFO L273 TraceCheckUtils]: 72: Hoare triple {24215#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24215#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,988 INFO L273 TraceCheckUtils]: 73: Hoare triple {24215#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24222#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,988 INFO L273 TraceCheckUtils]: 74: Hoare triple {24222#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24222#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,989 INFO L273 TraceCheckUtils]: 75: Hoare triple {24222#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24229#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,990 INFO L273 TraceCheckUtils]: 76: Hoare triple {24229#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24229#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,990 INFO L273 TraceCheckUtils]: 77: Hoare triple {24229#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24236#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,991 INFO L273 TraceCheckUtils]: 78: Hoare triple {24236#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24236#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,992 INFO L273 TraceCheckUtils]: 79: Hoare triple {24236#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24243#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,993 INFO L273 TraceCheckUtils]: 80: Hoare triple {24243#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24243#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,993 INFO L273 TraceCheckUtils]: 81: Hoare triple {24243#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24250#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-02-27 13:01:44,994 INFO L273 TraceCheckUtils]: 82: Hoare triple {24250#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {24250#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-02-27 13:01:44,995 INFO L273 TraceCheckUtils]: 83: Hoare triple {24250#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {24257#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,995 INFO L273 TraceCheckUtils]: 84: Hoare triple {24257#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24261#(and (= main_i 168) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:01:44,996 INFO L273 TraceCheckUtils]: 85: Hoare triple {24261#(and (= main_i 168) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23962#(and (<= main_i 172) (< 42 main_n))} is VALID [2019-02-27 13:01:44,997 INFO L273 TraceCheckUtils]: 86: Hoare triple {23962#(and (<= main_i 172) (< 42 main_n))} assume !(i <= n * 4); {23917#false} is VALID [2019-02-27 13:01:45,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1806 backedges. 0 proven. 1806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:01:45,015 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 13:01:50,556 INFO L273 TraceCheckUtils]: 86: Hoare triple {24268#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {23917#false} is VALID [2019-02-27 13:01:50,557 INFO L273 TraceCheckUtils]: 85: Hoare triple {24272#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {24268#(<= main_i (* 4 main_n))} is VALID [2019-02-27 13:01:50,558 INFO L273 TraceCheckUtils]: 84: Hoare triple {24276#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {24272#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:01:50,559 INFO L273 TraceCheckUtils]: 83: Hoare triple {24280#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {24276#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:01:50,559 INFO L273 TraceCheckUtils]: 82: Hoare triple {24280#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {24280#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:01:50,560 INFO L273 TraceCheckUtils]: 81: Hoare triple {24287#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {24280#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:01:50,561 INFO L273 TraceCheckUtils]: 80: Hoare triple {24287#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {24287#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:01:50,562 INFO L273 TraceCheckUtils]: 79: Hoare triple {24294#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {24287#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:01:50,563 INFO L273 TraceCheckUtils]: 78: Hoare triple {24294#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {24294#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:01:50,564 INFO L273 TraceCheckUtils]: 77: Hoare triple {24301#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {24294#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:01:50,564 INFO L273 TraceCheckUtils]: 76: Hoare triple {24301#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {24301#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:01:50,565 INFO L273 TraceCheckUtils]: 75: Hoare triple {24308#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24301#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:01:50,566 INFO L273 TraceCheckUtils]: 74: Hoare triple {24308#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {24308#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:01:50,567 INFO L273 TraceCheckUtils]: 73: Hoare triple {24315#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {24308#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:01:50,567 INFO L273 TraceCheckUtils]: 72: Hoare triple {24315#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {24315#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:01:50,568 INFO L273 TraceCheckUtils]: 71: Hoare triple {24322#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24315#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:01:50,569 INFO L273 TraceCheckUtils]: 70: Hoare triple {24322#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {24322#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:01:50,570 INFO L273 TraceCheckUtils]: 69: Hoare triple {24329#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24322#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:01:50,570 INFO L273 TraceCheckUtils]: 68: Hoare triple {24329#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {24329#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:01:50,571 INFO L273 TraceCheckUtils]: 67: Hoare triple {24336#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24329#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:01:50,572 INFO L273 TraceCheckUtils]: 66: Hoare triple {24336#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {24336#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:01:50,573 INFO L273 TraceCheckUtils]: 65: Hoare triple {24343#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {24336#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:01:50,573 INFO L273 TraceCheckUtils]: 64: Hoare triple {24343#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {24343#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:01:50,575 INFO L273 TraceCheckUtils]: 63: Hoare triple {24350#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24343#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:01:50,575 INFO L273 TraceCheckUtils]: 62: Hoare triple {24350#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {24350#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:01:50,576 INFO L273 TraceCheckUtils]: 61: Hoare triple {24357#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24350#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:01:50,577 INFO L273 TraceCheckUtils]: 60: Hoare triple {24357#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {24357#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:01:50,578 INFO L273 TraceCheckUtils]: 59: Hoare triple {24364#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {24357#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:01:50,578 INFO L273 TraceCheckUtils]: 58: Hoare triple {24364#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {24364#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:01:50,579 INFO L273 TraceCheckUtils]: 57: Hoare triple {24371#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24364#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:01:50,580 INFO L273 TraceCheckUtils]: 56: Hoare triple {24371#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {24371#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:01:50,581 INFO L273 TraceCheckUtils]: 55: Hoare triple {24378#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {24371#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:01:50,581 INFO L273 TraceCheckUtils]: 54: Hoare triple {24378#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {24378#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:01:50,582 INFO L273 TraceCheckUtils]: 53: Hoare triple {24385#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {24378#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:01:50,583 INFO L273 TraceCheckUtils]: 52: Hoare triple {24385#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {24385#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:01:50,584 INFO L273 TraceCheckUtils]: 51: Hoare triple {24392#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {24385#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:01:50,584 INFO L273 TraceCheckUtils]: 50: Hoare triple {24392#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {24392#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:01:50,585 INFO L273 TraceCheckUtils]: 49: Hoare triple {24399#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {24392#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:01:50,586 INFO L273 TraceCheckUtils]: 48: Hoare triple {24399#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {24399#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:01:50,587 INFO L273 TraceCheckUtils]: 47: Hoare triple {24406#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {24399#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:01:50,587 INFO L273 TraceCheckUtils]: 46: Hoare triple {24406#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {24406#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:01:50,588 INFO L273 TraceCheckUtils]: 45: Hoare triple {24413#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {24406#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:01:50,589 INFO L273 TraceCheckUtils]: 44: Hoare triple {24413#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {24413#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:01:50,590 INFO L273 TraceCheckUtils]: 43: Hoare triple {24420#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24413#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:01:50,591 INFO L273 TraceCheckUtils]: 42: Hoare triple {24420#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {24420#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:01:50,592 INFO L273 TraceCheckUtils]: 41: Hoare triple {24427#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24420#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:01:50,602 INFO L273 TraceCheckUtils]: 40: Hoare triple {24427#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {24427#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:01:50,603 INFO L273 TraceCheckUtils]: 39: Hoare triple {24434#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24427#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:01:50,603 INFO L273 TraceCheckUtils]: 38: Hoare triple {24434#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {24434#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:01:50,604 INFO L273 TraceCheckUtils]: 37: Hoare triple {24441#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {24434#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:01:50,604 INFO L273 TraceCheckUtils]: 36: Hoare triple {24441#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {24441#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:01:50,605 INFO L273 TraceCheckUtils]: 35: Hoare triple {24448#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24441#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:01:50,605 INFO L273 TraceCheckUtils]: 34: Hoare triple {24448#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {24448#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:01:50,606 INFO L273 TraceCheckUtils]: 33: Hoare triple {24455#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {24448#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:01:50,606 INFO L273 TraceCheckUtils]: 32: Hoare triple {24455#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {24455#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:01:50,607 INFO L273 TraceCheckUtils]: 31: Hoare triple {24462#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {24455#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:01:50,607 INFO L273 TraceCheckUtils]: 30: Hoare triple {24462#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {24462#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:01:50,608 INFO L273 TraceCheckUtils]: 29: Hoare triple {24469#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {24462#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:01:50,609 INFO L273 TraceCheckUtils]: 28: Hoare triple {24469#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {24469#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:01:50,610 INFO L273 TraceCheckUtils]: 27: Hoare triple {24476#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24469#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:01:50,610 INFO L273 TraceCheckUtils]: 26: Hoare triple {24476#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {24476#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:01:50,612 INFO L273 TraceCheckUtils]: 25: Hoare triple {24483#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24476#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:01:50,612 INFO L273 TraceCheckUtils]: 24: Hoare triple {24483#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {24483#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:01:50,613 INFO L273 TraceCheckUtils]: 23: Hoare triple {24490#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {24483#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:01:50,614 INFO L273 TraceCheckUtils]: 22: Hoare triple {24490#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {24490#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:01:50,615 INFO L273 TraceCheckUtils]: 21: Hoare triple {24497#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24490#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:01:50,615 INFO L273 TraceCheckUtils]: 20: Hoare triple {24497#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {24497#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:01:50,616 INFO L273 TraceCheckUtils]: 19: Hoare triple {24504#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {24497#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:01:50,617 INFO L273 TraceCheckUtils]: 18: Hoare triple {24504#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {24504#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:01:50,618 INFO L273 TraceCheckUtils]: 17: Hoare triple {24511#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {24504#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:01:50,618 INFO L273 TraceCheckUtils]: 16: Hoare triple {24511#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {24511#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:01:50,619 INFO L273 TraceCheckUtils]: 15: Hoare triple {24518#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {24511#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:01:50,620 INFO L273 TraceCheckUtils]: 14: Hoare triple {24518#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {24518#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:01:50,621 INFO L273 TraceCheckUtils]: 13: Hoare triple {24525#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {24518#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:01:50,621 INFO L273 TraceCheckUtils]: 12: Hoare triple {24525#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {24525#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:01:50,622 INFO L273 TraceCheckUtils]: 11: Hoare triple {24532#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {24525#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:01:50,623 INFO L273 TraceCheckUtils]: 10: Hoare triple {24532#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {24532#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-02-27 13:01:50,624 INFO L273 TraceCheckUtils]: 9: Hoare triple {24539#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {24532#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-02-27 13:01:50,625 INFO L273 TraceCheckUtils]: 8: Hoare triple {24539#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {24539#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-02-27 13:01:50,626 INFO L273 TraceCheckUtils]: 7: Hoare triple {24546#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {24539#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-02-27 13:01:50,626 INFO L273 TraceCheckUtils]: 6: Hoare triple {24546#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {24546#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-02-27 13:01:50,627 INFO L273 TraceCheckUtils]: 5: Hoare triple {24553#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {24546#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-02-27 13:01:50,628 INFO L273 TraceCheckUtils]: 4: Hoare triple {24553#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {24553#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-02-27 13:01:50,629 INFO L273 TraceCheckUtils]: 3: Hoare triple {24560#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {24553#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-02-27 13:01:50,629 INFO L273 TraceCheckUtils]: 2: Hoare triple {24560#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {24560#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-02-27 13:01:50,630 INFO L273 TraceCheckUtils]: 1: Hoare triple {24567#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24560#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-02-27 13:01:50,631 INFO L273 TraceCheckUtils]: 0: Hoare triple {23916#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {24567#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-02-27 13:01:50,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1806 backedges. 0 proven. 1806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:01:50,678 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 13:01:50,678 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45, 45] total 134 [2019-02-27 13:01:50,678 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 13:01:50,679 INFO L78 Accepts]: Start accepts. Automaton has 91 states. Word has length 87 [2019-02-27 13:01:50,679 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 13:01:50,679 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 91 states. [2019-02-27 13:01:50,882 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 173 edges. 173 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 13:01:50,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 91 states [2019-02-27 13:01:50,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2019-02-27 13:01:50,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2258, Invalid=16102, Unknown=0, NotChecked=0, Total=18360 [2019-02-27 13:01:50,884 INFO L87 Difference]: Start difference. First operand 88 states and 88 transitions. Second operand 91 states. [2019-02-27 13:02:03,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:02:03,425 INFO L93 Difference]: Finished difference Result 92 states and 92 transitions. [2019-02-27 13:02:03,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2019-02-27 13:02:03,425 INFO L78 Accepts]: Start accepts. Automaton has 91 states. Word has length 87 [2019-02-27 13:02:03,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 13:02:03,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-02-27 13:02:03,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 92 transitions. [2019-02-27 13:02:03,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-02-27 13:02:03,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 92 transitions. [2019-02-27 13:02:03,427 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 47 states and 92 transitions. [2019-02-27 13:02:03,528 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 92 edges. 92 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 13:02:03,529 INFO L225 Difference]: With dead ends: 92 [2019-02-27 13:02:03,529 INFO L226 Difference]: Without dead ends: 91 [2019-02-27 13:02:03,530 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4136 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=2258, Invalid=16102, Unknown=0, NotChecked=0, Total=18360 [2019-02-27 13:02:03,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-02-27 13:02:03,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 90. [2019-02-27 13:02:03,619 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 13:02:03,619 INFO L82 GeneralOperation]: Start isEquivalent. First operand 91 states. Second operand 90 states. [2019-02-27 13:02:03,619 INFO L74 IsIncluded]: Start isIncluded. First operand 91 states. Second operand 90 states. [2019-02-27 13:02:03,619 INFO L87 Difference]: Start difference. First operand 91 states. Second operand 90 states. [2019-02-27 13:02:03,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:02:03,621 INFO L93 Difference]: Finished difference Result 91 states and 91 transitions. [2019-02-27 13:02:03,621 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 91 transitions. [2019-02-27 13:02:03,622 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 13:02:03,622 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 13:02:03,622 INFO L74 IsIncluded]: Start isIncluded. First operand 90 states. Second operand 91 states. [2019-02-27 13:02:03,622 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 91 states. [2019-02-27 13:02:03,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:02:03,624 INFO L93 Difference]: Finished difference Result 91 states and 91 transitions. [2019-02-27 13:02:03,624 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 91 transitions. [2019-02-27 13:02:03,624 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 13:02:03,624 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 13:02:03,624 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 13:02:03,625 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 13:02:03,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2019-02-27 13:02:03,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 90 transitions. [2019-02-27 13:02:03,626 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 90 transitions. Word has length 87 [2019-02-27 13:02:03,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 13:02:03,626 INFO L480 AbstractCegarLoop]: Abstraction has 90 states and 90 transitions. [2019-02-27 13:02:03,626 INFO L481 AbstractCegarLoop]: Interpolant automaton has 91 states. [2019-02-27 13:02:03,626 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 90 transitions. [2019-02-27 13:02:03,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-02-27 13:02:03,627 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 13:02:03,627 INFO L402 BasicCegarLoop]: trace histogram [44, 43, 1, 1] [2019-02-27 13:02:03,627 INFO L423 AbstractCegarLoop]: === Iteration 44 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 13:02:03,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 13:02:03,627 INFO L82 PathProgramCache]: Analyzing trace with hash -500569994, now seen corresponding path program 43 times [2019-02-27 13:02:03,628 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 13:02:03,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 13:02:03,628 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 13:02:03,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 13:02:03,628 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 13:02:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:02:04,094 WARN L181 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-02-27 13:02:06,598 INFO L273 TraceCheckUtils]: 0: Hoare triple {25023#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {25025#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 0)))} is VALID [2019-02-27 13:02:06,600 INFO L273 TraceCheckUtils]: 1: Hoare triple {25025#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 0)))} assume a[i] != 23;i := i + 4; {25026#(and (or (<= main_n 43) (<= main_i 4)) (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2019-02-27 13:02:06,600 INFO L273 TraceCheckUtils]: 2: Hoare triple {25026#(and (or (<= main_n 43) (<= main_i 4)) (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume i <= n * 4; {25026#(and (or (<= main_n 43) (<= main_i 4)) (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2019-02-27 13:02:06,601 INFO L273 TraceCheckUtils]: 3: Hoare triple {25026#(and (or (<= main_n 43) (<= main_i 4)) (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume a[i] != 23;i := i + 4; {25027#(and (or (< 43 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 8)))} is VALID [2019-02-27 13:02:06,602 INFO L273 TraceCheckUtils]: 4: Hoare triple {25027#(and (or (< 43 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 8)))} assume i <= n * 4; {25027#(and (or (< 43 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 8)))} is VALID [2019-02-27 13:02:06,603 INFO L273 TraceCheckUtils]: 5: Hoare triple {25027#(and (or (< 43 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 8)))} assume a[i] != 23;i := i + 4; {25028#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 12)))} is VALID [2019-02-27 13:02:06,604 INFO L273 TraceCheckUtils]: 6: Hoare triple {25028#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 12)))} assume i <= n * 4; {25028#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 12)))} is VALID [2019-02-27 13:02:06,605 INFO L273 TraceCheckUtils]: 7: Hoare triple {25028#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {25029#(and (or (<= main_n 43) (<= main_i 16)) (or (< 43 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:02:06,606 INFO L273 TraceCheckUtils]: 8: Hoare triple {25029#(and (or (<= main_n 43) (<= main_i 16)) (or (< 43 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {25029#(and (or (<= main_n 43) (<= main_i 16)) (or (< 43 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:02:06,607 INFO L273 TraceCheckUtils]: 9: Hoare triple {25029#(and (or (<= main_n 43) (<= main_i 16)) (or (< 43 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {25030#(and (or (<= main_n 43) (<= main_i 20)) (or (< 43 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:02:06,608 INFO L273 TraceCheckUtils]: 10: Hoare triple {25030#(and (or (<= main_n 43) (<= main_i 20)) (or (< 43 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {25030#(and (or (<= main_n 43) (<= main_i 20)) (or (< 43 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:02:06,609 INFO L273 TraceCheckUtils]: 11: Hoare triple {25030#(and (or (<= main_n 43) (<= main_i 20)) (or (< 43 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {25031#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 24)))} is VALID [2019-02-27 13:02:06,609 INFO L273 TraceCheckUtils]: 12: Hoare triple {25031#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 24)))} assume i <= n * 4; {25031#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 24)))} is VALID [2019-02-27 13:02:06,611 INFO L273 TraceCheckUtils]: 13: Hoare triple {25031#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 24)))} assume a[i] != 23;i := i + 4; {25032#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 28)))} is VALID [2019-02-27 13:02:06,611 INFO L273 TraceCheckUtils]: 14: Hoare triple {25032#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 28)))} assume i <= n * 4; {25032#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 28)))} is VALID [2019-02-27 13:02:06,612 INFO L273 TraceCheckUtils]: 15: Hoare triple {25032#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {25033#(and (or (< 43 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 43)))} is VALID [2019-02-27 13:02:06,613 INFO L273 TraceCheckUtils]: 16: Hoare triple {25033#(and (or (< 43 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 43)))} assume i <= n * 4; {25033#(and (or (< 43 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 43)))} is VALID [2019-02-27 13:02:06,614 INFO L273 TraceCheckUtils]: 17: Hoare triple {25033#(and (or (< 43 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 43)))} assume a[i] != 23;i := i + 4; {25034#(and (or (<= main_n 43) (<= main_i 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 43 main_n)))} is VALID [2019-02-27 13:02:06,615 INFO L273 TraceCheckUtils]: 18: Hoare triple {25034#(and (or (<= main_n 43) (<= main_i 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 43 main_n)))} assume i <= n * 4; {25034#(and (or (<= main_n 43) (<= main_i 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 43 main_n)))} is VALID [2019-02-27 13:02:06,616 INFO L273 TraceCheckUtils]: 19: Hoare triple {25034#(and (or (<= main_n 43) (<= main_i 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 43 main_n)))} assume a[i] != 23;i := i + 4; {25035#(and (or (< 43 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 40)))} is VALID [2019-02-27 13:02:06,617 INFO L273 TraceCheckUtils]: 20: Hoare triple {25035#(and (or (< 43 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 40)))} assume i <= n * 4; {25035#(and (or (< 43 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 40)))} is VALID [2019-02-27 13:02:06,618 INFO L273 TraceCheckUtils]: 21: Hoare triple {25035#(and (or (< 43 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 40)))} assume a[i] != 23;i := i + 4; {25036#(and (or (<= main_n 43) (<= main_i 44)) (or (< 43 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:02:06,619 INFO L273 TraceCheckUtils]: 22: Hoare triple {25036#(and (or (<= main_n 43) (<= main_i 44)) (or (< 43 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {25036#(and (or (<= main_n 43) (<= main_i 44)) (or (< 43 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:02:06,620 INFO L273 TraceCheckUtils]: 23: Hoare triple {25036#(and (or (<= main_n 43) (<= main_i 44)) (or (< 43 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {25037#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 48)))} is VALID [2019-02-27 13:02:06,621 INFO L273 TraceCheckUtils]: 24: Hoare triple {25037#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 48)))} assume i <= n * 4; {25037#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 48)))} is VALID [2019-02-27 13:02:06,622 INFO L273 TraceCheckUtils]: 25: Hoare triple {25037#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 48)))} assume a[i] != 23;i := i + 4; {25038#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 52)))} is VALID [2019-02-27 13:02:06,623 INFO L273 TraceCheckUtils]: 26: Hoare triple {25038#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 52)))} assume i <= n * 4; {25038#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 52)))} is VALID [2019-02-27 13:02:06,624 INFO L273 TraceCheckUtils]: 27: Hoare triple {25038#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 52)))} assume a[i] != 23;i := i + 4; {25039#(and (or (< 43 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 56)))} is VALID [2019-02-27 13:02:06,624 INFO L273 TraceCheckUtils]: 28: Hoare triple {25039#(and (or (< 43 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 56)))} assume i <= n * 4; {25039#(and (or (< 43 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 56)))} is VALID [2019-02-27 13:02:06,625 INFO L273 TraceCheckUtils]: 29: Hoare triple {25039#(and (or (< 43 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 56)))} assume a[i] != 23;i := i + 4; {25040#(and (or (< 43 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 60)))} is VALID [2019-02-27 13:02:06,626 INFO L273 TraceCheckUtils]: 30: Hoare triple {25040#(and (or (< 43 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 60)))} assume i <= n * 4; {25040#(and (or (< 43 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 60)))} is VALID [2019-02-27 13:02:06,627 INFO L273 TraceCheckUtils]: 31: Hoare triple {25040#(and (or (< 43 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 60)))} assume a[i] != 23;i := i + 4; {25041#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 64)))} is VALID [2019-02-27 13:02:06,628 INFO L273 TraceCheckUtils]: 32: Hoare triple {25041#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 64)))} assume i <= n * 4; {25041#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 64)))} is VALID [2019-02-27 13:02:06,629 INFO L273 TraceCheckUtils]: 33: Hoare triple {25041#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 64)))} assume a[i] != 23;i := i + 4; {25042#(and (or (<= main_n 43) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} is VALID [2019-02-27 13:02:06,630 INFO L273 TraceCheckUtils]: 34: Hoare triple {25042#(and (or (<= main_n 43) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} assume i <= n * 4; {25042#(and (or (<= main_n 43) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} is VALID [2019-02-27 13:02:06,631 INFO L273 TraceCheckUtils]: 35: Hoare triple {25042#(and (or (<= main_n 43) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} assume a[i] != 23;i := i + 4; {25043#(and (or (<= main_n 43) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} is VALID [2019-02-27 13:02:06,632 INFO L273 TraceCheckUtils]: 36: Hoare triple {25043#(and (or (<= main_n 43) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} assume i <= n * 4; {25043#(and (or (<= main_n 43) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} is VALID [2019-02-27 13:02:06,633 INFO L273 TraceCheckUtils]: 37: Hoare triple {25043#(and (or (<= main_n 43) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} assume a[i] != 23;i := i + 4; {25044#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 76)))} is VALID [2019-02-27 13:02:06,634 INFO L273 TraceCheckUtils]: 38: Hoare triple {25044#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 76)))} assume i <= n * 4; {25044#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 76)))} is VALID [2019-02-27 13:02:06,635 INFO L273 TraceCheckUtils]: 39: Hoare triple {25044#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 76)))} assume a[i] != 23;i := i + 4; {25045#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 80)))} is VALID [2019-02-27 13:02:06,635 INFO L273 TraceCheckUtils]: 40: Hoare triple {25045#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 80)))} assume i <= n * 4; {25045#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 80)))} is VALID [2019-02-27 13:02:06,636 INFO L273 TraceCheckUtils]: 41: Hoare triple {25045#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 80)))} assume a[i] != 23;i := i + 4; {25046#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 43 main_n)) (or (<= main_n 43) (<= main_i 84)))} is VALID [2019-02-27 13:02:06,637 INFO L273 TraceCheckUtils]: 42: Hoare triple {25046#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 43 main_n)) (or (<= main_n 43) (<= main_i 84)))} assume i <= n * 4; {25046#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 43 main_n)) (or (<= main_n 43) (<= main_i 84)))} is VALID [2019-02-27 13:02:06,638 INFO L273 TraceCheckUtils]: 43: Hoare triple {25046#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 43 main_n)) (or (<= main_n 43) (<= main_i 84)))} assume a[i] != 23;i := i + 4; {25047#(and (or (< 43 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 88)))} is VALID [2019-02-27 13:02:06,639 INFO L273 TraceCheckUtils]: 44: Hoare triple {25047#(and (or (< 43 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 88)))} assume i <= n * 4; {25047#(and (or (< 43 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 88)))} is VALID [2019-02-27 13:02:06,640 INFO L273 TraceCheckUtils]: 45: Hoare triple {25047#(and (or (< 43 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 88)))} assume a[i] != 23;i := i + 4; {25048#(and (or (<= main_n 43) (<= main_i 92)) (or (< 43 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:02:06,641 INFO L273 TraceCheckUtils]: 46: Hoare triple {25048#(and (or (<= main_n 43) (<= main_i 92)) (or (< 43 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {25048#(and (or (<= main_n 43) (<= main_i 92)) (or (< 43 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:02:06,642 INFO L273 TraceCheckUtils]: 47: Hoare triple {25048#(and (or (<= main_n 43) (<= main_i 92)) (or (< 43 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {25049#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_i 96) (<= main_n 43)))} is VALID [2019-02-27 13:02:06,643 INFO L273 TraceCheckUtils]: 48: Hoare triple {25049#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_i 96) (<= main_n 43)))} assume i <= n * 4; {25049#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_i 96) (<= main_n 43)))} is VALID [2019-02-27 13:02:06,644 INFO L273 TraceCheckUtils]: 49: Hoare triple {25049#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_i 96) (<= main_n 43)))} assume a[i] != 23;i := i + 4; {25050#(and (or (<= main_n 43) (<= main_i 100)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} is VALID [2019-02-27 13:02:06,645 INFO L273 TraceCheckUtils]: 50: Hoare triple {25050#(and (or (<= main_n 43) (<= main_i 100)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} assume i <= n * 4; {25050#(and (or (<= main_n 43) (<= main_i 100)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} is VALID [2019-02-27 13:02:06,646 INFO L273 TraceCheckUtils]: 51: Hoare triple {25050#(and (or (<= main_n 43) (<= main_i 100)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} assume a[i] != 23;i := i + 4; {25051#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_i 104) (<= main_n 43)))} is VALID [2019-02-27 13:02:06,647 INFO L273 TraceCheckUtils]: 52: Hoare triple {25051#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_i 104) (<= main_n 43)))} assume i <= n * 4; {25051#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_i 104) (<= main_n 43)))} is VALID [2019-02-27 13:02:06,648 INFO L273 TraceCheckUtils]: 53: Hoare triple {25051#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_i 104) (<= main_n 43)))} assume a[i] != 23;i := i + 4; {25052#(and (or (<= main_n 43) (<= main_i 108)) (or (< 43 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:02:06,648 INFO L273 TraceCheckUtils]: 54: Hoare triple {25052#(and (or (<= main_n 43) (<= main_i 108)) (or (< 43 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {25052#(and (or (<= main_n 43) (<= main_i 108)) (or (< 43 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:02:06,649 INFO L273 TraceCheckUtils]: 55: Hoare triple {25052#(and (or (<= main_n 43) (<= main_i 108)) (or (< 43 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {25053#(and (or (<= main_n 43) (<= main_i 112)) (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} is VALID [2019-02-27 13:02:06,650 INFO L273 TraceCheckUtils]: 56: Hoare triple {25053#(and (or (<= main_n 43) (<= main_i 112)) (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} assume i <= n * 4; {25053#(and (or (<= main_n 43) (<= main_i 112)) (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} is VALID [2019-02-27 13:02:06,651 INFO L273 TraceCheckUtils]: 57: Hoare triple {25053#(and (or (<= main_n 43) (<= main_i 112)) (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} assume a[i] != 23;i := i + 4; {25054#(and (or (< 43 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 116)))} is VALID [2019-02-27 13:02:06,652 INFO L273 TraceCheckUtils]: 58: Hoare triple {25054#(and (or (< 43 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 116)))} assume i <= n * 4; {25054#(and (or (< 43 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 116)))} is VALID [2019-02-27 13:02:06,653 INFO L273 TraceCheckUtils]: 59: Hoare triple {25054#(and (or (< 43 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 116)))} assume a[i] != 23;i := i + 4; {25055#(and (or (< 43 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 120)))} is VALID [2019-02-27 13:02:06,654 INFO L273 TraceCheckUtils]: 60: Hoare triple {25055#(and (or (< 43 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 120)))} assume i <= n * 4; {25055#(and (or (< 43 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 120)))} is VALID [2019-02-27 13:02:06,655 INFO L273 TraceCheckUtils]: 61: Hoare triple {25055#(and (or (< 43 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 120)))} assume a[i] != 23;i := i + 4; {25056#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 124)))} is VALID [2019-02-27 13:02:06,656 INFO L273 TraceCheckUtils]: 62: Hoare triple {25056#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 124)))} assume i <= n * 4; {25056#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 124)))} is VALID [2019-02-27 13:02:06,657 INFO L273 TraceCheckUtils]: 63: Hoare triple {25056#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 124)))} assume a[i] != 23;i := i + 4; {25057#(and (or (<= main_n 43) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 43 main_n)))} is VALID [2019-02-27 13:02:06,658 INFO L273 TraceCheckUtils]: 64: Hoare triple {25057#(and (or (<= main_n 43) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 43 main_n)))} assume i <= n * 4; {25057#(and (or (<= main_n 43) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 43 main_n)))} is VALID [2019-02-27 13:02:06,659 INFO L273 TraceCheckUtils]: 65: Hoare triple {25057#(and (or (<= main_n 43) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 43 main_n)))} assume a[i] != 23;i := i + 4; {25058#(and (or (<= main_n 43) (<= main_i 132)) (or (< 43 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:02:06,659 INFO L273 TraceCheckUtils]: 66: Hoare triple {25058#(and (or (<= main_n 43) (<= main_i 132)) (or (< 43 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {25058#(and (or (<= main_n 43) (<= main_i 132)) (or (< 43 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:02:06,661 INFO L273 TraceCheckUtils]: 67: Hoare triple {25058#(and (or (<= main_n 43) (<= main_i 132)) (or (< 43 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {25059#(and (or (<= main_n 43) (<= main_i 136)) (or (< 43 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:02:06,661 INFO L273 TraceCheckUtils]: 68: Hoare triple {25059#(and (or (<= main_n 43) (<= main_i 136)) (or (< 43 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {25059#(and (or (<= main_n 43) (<= main_i 136)) (or (< 43 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:02:06,662 INFO L273 TraceCheckUtils]: 69: Hoare triple {25059#(and (or (<= main_n 43) (<= main_i 136)) (or (< 43 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {25060#(and (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 43) (<= main_i 140)))} is VALID [2019-02-27 13:02:06,663 INFO L273 TraceCheckUtils]: 70: Hoare triple {25060#(and (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 43) (<= main_i 140)))} assume i <= n * 4; {25060#(and (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 43) (<= main_i 140)))} is VALID [2019-02-27 13:02:06,664 INFO L273 TraceCheckUtils]: 71: Hoare triple {25060#(and (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 43) (<= main_i 140)))} assume a[i] != 23;i := i + 4; {25061#(and (or (<= main_n 43) (<= main_i 144)) (or (< 43 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:02:06,665 INFO L273 TraceCheckUtils]: 72: Hoare triple {25061#(and (or (<= main_n 43) (<= main_i 144)) (or (< 43 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {25061#(and (or (<= main_n 43) (<= main_i 144)) (or (< 43 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:02:06,666 INFO L273 TraceCheckUtils]: 73: Hoare triple {25061#(and (or (<= main_n 43) (<= main_i 144)) (or (< 43 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {25062#(and (or (<= main_n 43) (<= main_i 148)) (or (< 43 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:02:06,667 INFO L273 TraceCheckUtils]: 74: Hoare triple {25062#(and (or (<= main_n 43) (<= main_i 148)) (or (< 43 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {25062#(and (or (<= main_n 43) (<= main_i 148)) (or (< 43 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:02:06,668 INFO L273 TraceCheckUtils]: 75: Hoare triple {25062#(and (or (<= main_n 43) (<= main_i 148)) (or (< 43 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {25063#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 152)))} is VALID [2019-02-27 13:02:06,669 INFO L273 TraceCheckUtils]: 76: Hoare triple {25063#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 152)))} assume i <= n * 4; {25063#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 152)))} is VALID [2019-02-27 13:02:06,670 INFO L273 TraceCheckUtils]: 77: Hoare triple {25063#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 152)))} assume a[i] != 23;i := i + 4; {25064#(and (or (<= main_n 43) (<= main_i 156)) (or (< 43 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:02:06,671 INFO L273 TraceCheckUtils]: 78: Hoare triple {25064#(and (or (<= main_n 43) (<= main_i 156)) (or (< 43 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {25064#(and (or (<= main_n 43) (<= main_i 156)) (or (< 43 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:02:06,672 INFO L273 TraceCheckUtils]: 79: Hoare triple {25064#(and (or (<= main_n 43) (<= main_i 156)) (or (< 43 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {25065#(and (or (< 43 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 160)))} is VALID [2019-02-27 13:02:06,672 INFO L273 TraceCheckUtils]: 80: Hoare triple {25065#(and (or (< 43 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 160)))} assume i <= n * 4; {25065#(and (or (< 43 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 160)))} is VALID [2019-02-27 13:02:06,673 INFO L273 TraceCheckUtils]: 81: Hoare triple {25065#(and (or (< 43 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 160)))} assume a[i] != 23;i := i + 4; {25066#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 164)))} is VALID [2019-02-27 13:02:06,674 INFO L273 TraceCheckUtils]: 82: Hoare triple {25066#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 164)))} assume i <= n * 4; {25066#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 164)))} is VALID [2019-02-27 13:02:06,675 INFO L273 TraceCheckUtils]: 83: Hoare triple {25066#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 164)))} assume a[i] != 23;i := i + 4; {25067#(and (or (< 43 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 168)))} is VALID [2019-02-27 13:02:06,676 INFO L273 TraceCheckUtils]: 84: Hoare triple {25067#(and (or (< 43 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 168)))} assume i <= n * 4; {25067#(and (or (< 43 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 168)))} is VALID [2019-02-27 13:02:06,677 INFO L273 TraceCheckUtils]: 85: Hoare triple {25067#(and (or (< 43 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 168)))} assume a[i] != 23;i := i + 4; {25068#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 43 main_n)) (or (<= main_n 43) (<= main_i 172)))} is VALID [2019-02-27 13:02:06,678 INFO L273 TraceCheckUtils]: 86: Hoare triple {25068#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 43 main_n)) (or (<= main_n 43) (<= main_i 172)))} assume i <= n * 4; {25069#(and (or (< 43 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 172))} is VALID [2019-02-27 13:02:06,679 INFO L273 TraceCheckUtils]: 87: Hoare triple {25069#(and (or (< 43 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 172))} assume a[i] != 23;i := i + 4; {25070#(and (<= main_i 176) (<= 44 main_n))} is VALID [2019-02-27 13:02:06,680 INFO L273 TraceCheckUtils]: 88: Hoare triple {25070#(and (<= main_i 176) (<= 44 main_n))} assume !(i <= n * 4); {25024#false} is VALID [2019-02-27 13:02:06,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 0 proven. 1892 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:02:06,720 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 13:02:06,720 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 13:02:06,720 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 13:02:06,720 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 13:02:06,720 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 13:02:06,721 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 13:02:06,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 13:02:06,730 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-27 13:02:06,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:02:06,756 WARN L254 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 93 conjunts are in the unsatisfiable core [2019-02-27 13:02:06,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:02:06,770 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 13:02:06,783 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 13:02:06,788 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 13:02:06,797 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 13:02:06,797 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 13:02:06,799 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 13:02:06,799 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_47]. (and (= main_i 0) (= (store v_main_a_47 (* 4 main_n) 23) main_a)) [2019-02-27 13:02:06,799 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 13:02:10,076 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 13:02:10,079 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 13:02:10,083 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 13:02:10,084 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 13:02:10,090 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 13:02:10,090 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= (select main_a 172) 23)) (<= main_i 176) (<= 172 .cse0) (= 23 (select main_a .cse0)))) [2019-02-27 13:02:10,090 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 176) (<= 172 .cse0) (not (= 172 .cse0)))) [2019-02-27 13:02:10,142 INFO L273 TraceCheckUtils]: 0: Hoare triple {25023#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {25074#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,143 INFO L273 TraceCheckUtils]: 1: Hoare triple {25074#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25078#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 13:02:10,143 INFO L273 TraceCheckUtils]: 2: Hoare triple {25078#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {25078#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 13:02:10,144 INFO L273 TraceCheckUtils]: 3: Hoare triple {25078#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {25085#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,145 INFO L273 TraceCheckUtils]: 4: Hoare triple {25085#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25085#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,146 INFO L273 TraceCheckUtils]: 5: Hoare triple {25085#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25092#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 13:02:10,146 INFO L273 TraceCheckUtils]: 6: Hoare triple {25092#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {25092#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 13:02:10,147 INFO L273 TraceCheckUtils]: 7: Hoare triple {25092#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {25099#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,148 INFO L273 TraceCheckUtils]: 8: Hoare triple {25099#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25099#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,149 INFO L273 TraceCheckUtils]: 9: Hoare triple {25099#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25106#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,149 INFO L273 TraceCheckUtils]: 10: Hoare triple {25106#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25106#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,150 INFO L273 TraceCheckUtils]: 11: Hoare triple {25106#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25113#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,151 INFO L273 TraceCheckUtils]: 12: Hoare triple {25113#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25113#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,151 INFO L273 TraceCheckUtils]: 13: Hoare triple {25113#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25120#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,152 INFO L273 TraceCheckUtils]: 14: Hoare triple {25120#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25120#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,153 INFO L273 TraceCheckUtils]: 15: Hoare triple {25120#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25127#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,153 INFO L273 TraceCheckUtils]: 16: Hoare triple {25127#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25127#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,154 INFO L273 TraceCheckUtils]: 17: Hoare triple {25127#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25134#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,155 INFO L273 TraceCheckUtils]: 18: Hoare triple {25134#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25134#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,155 INFO L273 TraceCheckUtils]: 19: Hoare triple {25134#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25141#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,156 INFO L273 TraceCheckUtils]: 20: Hoare triple {25141#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25141#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,157 INFO L273 TraceCheckUtils]: 21: Hoare triple {25141#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25148#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,157 INFO L273 TraceCheckUtils]: 22: Hoare triple {25148#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25148#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,158 INFO L273 TraceCheckUtils]: 23: Hoare triple {25148#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25155#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,159 INFO L273 TraceCheckUtils]: 24: Hoare triple {25155#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25155#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,159 INFO L273 TraceCheckUtils]: 25: Hoare triple {25155#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25162#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,160 INFO L273 TraceCheckUtils]: 26: Hoare triple {25162#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25162#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,161 INFO L273 TraceCheckUtils]: 27: Hoare triple {25162#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25169#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,161 INFO L273 TraceCheckUtils]: 28: Hoare triple {25169#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25169#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,162 INFO L273 TraceCheckUtils]: 29: Hoare triple {25169#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25176#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,163 INFO L273 TraceCheckUtils]: 30: Hoare triple {25176#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25176#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,163 INFO L273 TraceCheckUtils]: 31: Hoare triple {25176#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25183#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,164 INFO L273 TraceCheckUtils]: 32: Hoare triple {25183#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25183#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,165 INFO L273 TraceCheckUtils]: 33: Hoare triple {25183#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25190#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,165 INFO L273 TraceCheckUtils]: 34: Hoare triple {25190#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25190#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,166 INFO L273 TraceCheckUtils]: 35: Hoare triple {25190#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25197#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,167 INFO L273 TraceCheckUtils]: 36: Hoare triple {25197#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25197#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,167 INFO L273 TraceCheckUtils]: 37: Hoare triple {25197#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25204#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,168 INFO L273 TraceCheckUtils]: 38: Hoare triple {25204#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25204#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,169 INFO L273 TraceCheckUtils]: 39: Hoare triple {25204#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25211#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 13:02:10,169 INFO L273 TraceCheckUtils]: 40: Hoare triple {25211#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {25211#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 13:02:10,170 INFO L273 TraceCheckUtils]: 41: Hoare triple {25211#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {25218#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,171 INFO L273 TraceCheckUtils]: 42: Hoare triple {25218#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25218#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,171 INFO L273 TraceCheckUtils]: 43: Hoare triple {25218#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25225#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,172 INFO L273 TraceCheckUtils]: 44: Hoare triple {25225#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25225#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,173 INFO L273 TraceCheckUtils]: 45: Hoare triple {25225#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25232#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,173 INFO L273 TraceCheckUtils]: 46: Hoare triple {25232#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25232#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,174 INFO L273 TraceCheckUtils]: 47: Hoare triple {25232#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25239#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,175 INFO L273 TraceCheckUtils]: 48: Hoare triple {25239#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25239#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,175 INFO L273 TraceCheckUtils]: 49: Hoare triple {25239#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25246#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,176 INFO L273 TraceCheckUtils]: 50: Hoare triple {25246#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25246#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,177 INFO L273 TraceCheckUtils]: 51: Hoare triple {25246#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25253#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,177 INFO L273 TraceCheckUtils]: 52: Hoare triple {25253#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25253#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,178 INFO L273 TraceCheckUtils]: 53: Hoare triple {25253#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25260#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,179 INFO L273 TraceCheckUtils]: 54: Hoare triple {25260#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25260#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,179 INFO L273 TraceCheckUtils]: 55: Hoare triple {25260#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25267#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,180 INFO L273 TraceCheckUtils]: 56: Hoare triple {25267#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25267#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,181 INFO L273 TraceCheckUtils]: 57: Hoare triple {25267#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25274#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,182 INFO L273 TraceCheckUtils]: 58: Hoare triple {25274#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25274#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,182 INFO L273 TraceCheckUtils]: 59: Hoare triple {25274#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25281#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,183 INFO L273 TraceCheckUtils]: 60: Hoare triple {25281#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25281#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,184 INFO L273 TraceCheckUtils]: 61: Hoare triple {25281#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25288#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,184 INFO L273 TraceCheckUtils]: 62: Hoare triple {25288#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25288#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,185 INFO L273 TraceCheckUtils]: 63: Hoare triple {25288#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25295#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,186 INFO L273 TraceCheckUtils]: 64: Hoare triple {25295#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25295#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,186 INFO L273 TraceCheckUtils]: 65: Hoare triple {25295#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25302#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,187 INFO L273 TraceCheckUtils]: 66: Hoare triple {25302#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25302#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,188 INFO L273 TraceCheckUtils]: 67: Hoare triple {25302#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25309#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,188 INFO L273 TraceCheckUtils]: 68: Hoare triple {25309#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25309#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,189 INFO L273 TraceCheckUtils]: 69: Hoare triple {25309#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25316#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 13:02:10,190 INFO L273 TraceCheckUtils]: 70: Hoare triple {25316#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {25316#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 13:02:10,191 INFO L273 TraceCheckUtils]: 71: Hoare triple {25316#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {25323#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,191 INFO L273 TraceCheckUtils]: 72: Hoare triple {25323#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25323#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,192 INFO L273 TraceCheckUtils]: 73: Hoare triple {25323#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25330#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,193 INFO L273 TraceCheckUtils]: 74: Hoare triple {25330#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25330#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,193 INFO L273 TraceCheckUtils]: 75: Hoare triple {25330#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25337#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,194 INFO L273 TraceCheckUtils]: 76: Hoare triple {25337#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25337#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,195 INFO L273 TraceCheckUtils]: 77: Hoare triple {25337#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25344#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,196 INFO L273 TraceCheckUtils]: 78: Hoare triple {25344#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25344#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,196 INFO L273 TraceCheckUtils]: 79: Hoare triple {25344#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25351#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,197 INFO L273 TraceCheckUtils]: 80: Hoare triple {25351#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25351#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,198 INFO L273 TraceCheckUtils]: 81: Hoare triple {25351#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25358#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-02-27 13:02:10,198 INFO L273 TraceCheckUtils]: 82: Hoare triple {25358#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {25358#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-02-27 13:02:10,199 INFO L273 TraceCheckUtils]: 83: Hoare triple {25358#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {25365#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,200 INFO L273 TraceCheckUtils]: 84: Hoare triple {25365#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25365#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,201 INFO L273 TraceCheckUtils]: 85: Hoare triple {25365#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25372#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,201 INFO L273 TraceCheckUtils]: 86: Hoare triple {25372#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25376#(and (= main_i 172) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:10,202 INFO L273 TraceCheckUtils]: 87: Hoare triple {25376#(and (= main_i 172) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25070#(and (<= main_i 176) (<= 44 main_n))} is VALID [2019-02-27 13:02:10,203 INFO L273 TraceCheckUtils]: 88: Hoare triple {25070#(and (<= main_i 176) (<= 44 main_n))} assume !(i <= n * 4); {25024#false} is VALID [2019-02-27 13:02:10,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 0 proven. 1892 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:02:10,222 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 13:02:15,901 INFO L273 TraceCheckUtils]: 88: Hoare triple {25383#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {25024#false} is VALID [2019-02-27 13:02:15,902 INFO L273 TraceCheckUtils]: 87: Hoare triple {25387#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {25383#(<= main_i (* 4 main_n))} is VALID [2019-02-27 13:02:15,903 INFO L273 TraceCheckUtils]: 86: Hoare triple {25391#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {25387#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:02:15,904 INFO L273 TraceCheckUtils]: 85: Hoare triple {25395#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {25391#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:02:15,904 INFO L273 TraceCheckUtils]: 84: Hoare triple {25395#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {25395#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:02:15,905 INFO L273 TraceCheckUtils]: 83: Hoare triple {25402#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {25395#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:02:15,905 INFO L273 TraceCheckUtils]: 82: Hoare triple {25402#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {25402#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:02:15,906 INFO L273 TraceCheckUtils]: 81: Hoare triple {25409#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {25402#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:02:15,907 INFO L273 TraceCheckUtils]: 80: Hoare triple {25409#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {25409#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:02:15,908 INFO L273 TraceCheckUtils]: 79: Hoare triple {25416#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {25409#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:02:15,909 INFO L273 TraceCheckUtils]: 78: Hoare triple {25416#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {25416#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:02:15,910 INFO L273 TraceCheckUtils]: 77: Hoare triple {25423#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25416#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:02:15,910 INFO L273 TraceCheckUtils]: 76: Hoare triple {25423#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {25423#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:02:15,911 INFO L273 TraceCheckUtils]: 75: Hoare triple {25430#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {25423#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:02:15,912 INFO L273 TraceCheckUtils]: 74: Hoare triple {25430#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {25430#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:02:15,913 INFO L273 TraceCheckUtils]: 73: Hoare triple {25437#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25430#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:02:15,913 INFO L273 TraceCheckUtils]: 72: Hoare triple {25437#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {25437#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:02:15,914 INFO L273 TraceCheckUtils]: 71: Hoare triple {25444#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25437#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:02:15,915 INFO L273 TraceCheckUtils]: 70: Hoare triple {25444#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {25444#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:02:15,916 INFO L273 TraceCheckUtils]: 69: Hoare triple {25451#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25444#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:02:15,917 INFO L273 TraceCheckUtils]: 68: Hoare triple {25451#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {25451#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:02:15,918 INFO L273 TraceCheckUtils]: 67: Hoare triple {25458#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {25451#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:02:15,918 INFO L273 TraceCheckUtils]: 66: Hoare triple {25458#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {25458#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:02:15,919 INFO L273 TraceCheckUtils]: 65: Hoare triple {25465#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25458#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:02:15,920 INFO L273 TraceCheckUtils]: 64: Hoare triple {25465#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {25465#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:02:15,921 INFO L273 TraceCheckUtils]: 63: Hoare triple {25472#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25465#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:02:15,921 INFO L273 TraceCheckUtils]: 62: Hoare triple {25472#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {25472#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:02:15,922 INFO L273 TraceCheckUtils]: 61: Hoare triple {25479#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {25472#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:02:15,923 INFO L273 TraceCheckUtils]: 60: Hoare triple {25479#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {25479#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:02:15,924 INFO L273 TraceCheckUtils]: 59: Hoare triple {25486#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25479#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:02:15,925 INFO L273 TraceCheckUtils]: 58: Hoare triple {25486#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {25486#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:02:15,926 INFO L273 TraceCheckUtils]: 57: Hoare triple {25493#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {25486#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:02:15,926 INFO L273 TraceCheckUtils]: 56: Hoare triple {25493#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {25493#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:02:15,927 INFO L273 TraceCheckUtils]: 55: Hoare triple {25500#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {25493#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:02:15,928 INFO L273 TraceCheckUtils]: 54: Hoare triple {25500#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {25500#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:02:15,929 INFO L273 TraceCheckUtils]: 53: Hoare triple {25507#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {25500#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:02:15,930 INFO L273 TraceCheckUtils]: 52: Hoare triple {25507#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {25507#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:02:15,931 INFO L273 TraceCheckUtils]: 51: Hoare triple {25514#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {25507#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:02:15,931 INFO L273 TraceCheckUtils]: 50: Hoare triple {25514#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {25514#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:02:15,932 INFO L273 TraceCheckUtils]: 49: Hoare triple {25521#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {25514#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:02:15,933 INFO L273 TraceCheckUtils]: 48: Hoare triple {25521#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {25521#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:02:15,934 INFO L273 TraceCheckUtils]: 47: Hoare triple {25528#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {25521#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:02:15,935 INFO L273 TraceCheckUtils]: 46: Hoare triple {25528#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {25528#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:02:15,936 INFO L273 TraceCheckUtils]: 45: Hoare triple {25535#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25528#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:02:15,936 INFO L273 TraceCheckUtils]: 44: Hoare triple {25535#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {25535#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:02:15,937 INFO L273 TraceCheckUtils]: 43: Hoare triple {25542#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25535#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:02:15,938 INFO L273 TraceCheckUtils]: 42: Hoare triple {25542#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {25542#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:02:15,939 INFO L273 TraceCheckUtils]: 41: Hoare triple {25549#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25542#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:02:15,939 INFO L273 TraceCheckUtils]: 40: Hoare triple {25549#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {25549#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:02:15,940 INFO L273 TraceCheckUtils]: 39: Hoare triple {25556#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {25549#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:02:15,941 INFO L273 TraceCheckUtils]: 38: Hoare triple {25556#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {25556#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:02:15,942 INFO L273 TraceCheckUtils]: 37: Hoare triple {25563#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25556#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:02:15,942 INFO L273 TraceCheckUtils]: 36: Hoare triple {25563#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {25563#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:02:15,943 INFO L273 TraceCheckUtils]: 35: Hoare triple {25570#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {25563#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:02:15,944 INFO L273 TraceCheckUtils]: 34: Hoare triple {25570#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {25570#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:02:15,945 INFO L273 TraceCheckUtils]: 33: Hoare triple {25577#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {25570#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:02:15,946 INFO L273 TraceCheckUtils]: 32: Hoare triple {25577#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {25577#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:02:15,947 INFO L273 TraceCheckUtils]: 31: Hoare triple {25584#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {25577#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:02:15,947 INFO L273 TraceCheckUtils]: 30: Hoare triple {25584#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {25584#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:02:15,948 INFO L273 TraceCheckUtils]: 29: Hoare triple {25591#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25584#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:02:15,949 INFO L273 TraceCheckUtils]: 28: Hoare triple {25591#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {25591#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:02:15,950 INFO L273 TraceCheckUtils]: 27: Hoare triple {25598#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25591#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:02:15,950 INFO L273 TraceCheckUtils]: 26: Hoare triple {25598#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {25598#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:02:15,952 INFO L273 TraceCheckUtils]: 25: Hoare triple {25605#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {25598#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:02:15,952 INFO L273 TraceCheckUtils]: 24: Hoare triple {25605#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {25605#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:02:15,953 INFO L273 TraceCheckUtils]: 23: Hoare triple {25612#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25605#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:02:15,954 INFO L273 TraceCheckUtils]: 22: Hoare triple {25612#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {25612#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:02:15,955 INFO L273 TraceCheckUtils]: 21: Hoare triple {25619#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {25612#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:02:15,955 INFO L273 TraceCheckUtils]: 20: Hoare triple {25619#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {25619#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:02:15,956 INFO L273 TraceCheckUtils]: 19: Hoare triple {25626#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {25619#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:02:15,957 INFO L273 TraceCheckUtils]: 18: Hoare triple {25626#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {25626#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:02:15,958 INFO L273 TraceCheckUtils]: 17: Hoare triple {25633#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {25626#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:02:15,959 INFO L273 TraceCheckUtils]: 16: Hoare triple {25633#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {25633#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:02:15,960 INFO L273 TraceCheckUtils]: 15: Hoare triple {25640#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {25633#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:02:15,960 INFO L273 TraceCheckUtils]: 14: Hoare triple {25640#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {25640#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:02:15,961 INFO L273 TraceCheckUtils]: 13: Hoare triple {25647#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {25640#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:02:15,962 INFO L273 TraceCheckUtils]: 12: Hoare triple {25647#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {25647#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-02-27 13:02:15,963 INFO L273 TraceCheckUtils]: 11: Hoare triple {25654#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {25647#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-02-27 13:02:15,964 INFO L273 TraceCheckUtils]: 10: Hoare triple {25654#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {25654#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-02-27 13:02:15,965 INFO L273 TraceCheckUtils]: 9: Hoare triple {25661#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {25654#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-02-27 13:02:15,965 INFO L273 TraceCheckUtils]: 8: Hoare triple {25661#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {25661#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-02-27 13:02:15,966 INFO L273 TraceCheckUtils]: 7: Hoare triple {25668#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {25661#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-02-27 13:02:15,967 INFO L273 TraceCheckUtils]: 6: Hoare triple {25668#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {25668#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-02-27 13:02:15,968 INFO L273 TraceCheckUtils]: 5: Hoare triple {25675#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {25668#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-02-27 13:02:15,969 INFO L273 TraceCheckUtils]: 4: Hoare triple {25675#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {25675#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-02-27 13:02:15,970 INFO L273 TraceCheckUtils]: 3: Hoare triple {25682#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25675#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-02-27 13:02:15,970 INFO L273 TraceCheckUtils]: 2: Hoare triple {25682#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume i <= n * 4; {25682#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-02-27 13:02:15,971 INFO L273 TraceCheckUtils]: 1: Hoare triple {25689#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25682#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-02-27 13:02:15,972 INFO L273 TraceCheckUtils]: 0: Hoare triple {25023#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {25689#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-02-27 13:02:16,007 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 0 proven. 1892 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:02:16,036 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 13:02:16,037 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46, 46] total 137 [2019-02-27 13:02:16,037 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 13:02:16,038 INFO L78 Accepts]: Start accepts. Automaton has 93 states. Word has length 89 [2019-02-27 13:02:16,039 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 13:02:16,039 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 93 states. [2019-02-27 13:02:16,364 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 177 edges. 177 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 13:02:16,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 93 states [2019-02-27 13:02:16,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2019-02-27 13:02:16,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2354, Invalid=16828, Unknown=0, NotChecked=0, Total=19182 [2019-02-27 13:02:16,366 INFO L87 Difference]: Start difference. First operand 90 states and 90 transitions. Second operand 93 states. [2019-02-27 13:02:31,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:02:31,239 INFO L93 Difference]: Finished difference Result 94 states and 94 transitions. [2019-02-27 13:02:31,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2019-02-27 13:02:31,239 INFO L78 Accepts]: Start accepts. Automaton has 93 states. Word has length 89 [2019-02-27 13:02:31,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 13:02:31,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-02-27 13:02:31,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 94 transitions. [2019-02-27 13:02:31,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-02-27 13:02:31,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 94 transitions. [2019-02-27 13:02:31,241 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 48 states and 94 transitions. [2019-02-27 13:02:31,341 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 94 edges. 94 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 13:02:31,343 INFO L225 Difference]: With dead ends: 94 [2019-02-27 13:02:31,343 INFO L226 Difference]: Without dead ends: 93 [2019-02-27 13:02:31,344 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 84 SyntacticMatches, 1 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4320 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=2354, Invalid=16828, Unknown=0, NotChecked=0, Total=19182 [2019-02-27 13:02:31,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-02-27 13:02:31,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 92. [2019-02-27 13:02:31,432 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 13:02:31,432 INFO L82 GeneralOperation]: Start isEquivalent. First operand 93 states. Second operand 92 states. [2019-02-27 13:02:31,432 INFO L74 IsIncluded]: Start isIncluded. First operand 93 states. Second operand 92 states. [2019-02-27 13:02:31,432 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 92 states. [2019-02-27 13:02:31,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:02:31,434 INFO L93 Difference]: Finished difference Result 93 states and 93 transitions. [2019-02-27 13:02:31,434 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 93 transitions. [2019-02-27 13:02:31,434 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 13:02:31,434 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 13:02:31,434 INFO L74 IsIncluded]: Start isIncluded. First operand 92 states. Second operand 93 states. [2019-02-27 13:02:31,434 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 93 states. [2019-02-27 13:02:31,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:02:31,436 INFO L93 Difference]: Finished difference Result 93 states and 93 transitions. [2019-02-27 13:02:31,436 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 93 transitions. [2019-02-27 13:02:31,436 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 13:02:31,436 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 13:02:31,437 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 13:02:31,437 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 13:02:31,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-02-27 13:02:31,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 92 transitions. [2019-02-27 13:02:31,438 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 92 transitions. Word has length 89 [2019-02-27 13:02:31,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 13:02:31,438 INFO L480 AbstractCegarLoop]: Abstraction has 92 states and 92 transitions. [2019-02-27 13:02:31,438 INFO L481 AbstractCegarLoop]: Interpolant automaton has 93 states. [2019-02-27 13:02:31,438 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 92 transitions. [2019-02-27 13:02:31,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-02-27 13:02:31,439 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 13:02:31,439 INFO L402 BasicCegarLoop]: trace histogram [45, 44, 1, 1] [2019-02-27 13:02:31,439 INFO L423 AbstractCegarLoop]: === Iteration 45 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 13:02:31,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 13:02:31,440 INFO L82 PathProgramCache]: Analyzing trace with hash -11425992, now seen corresponding path program 44 times [2019-02-27 13:02:31,440 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 13:02:31,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 13:02:31,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 13:02:31,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 13:02:31,441 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 13:02:31,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:02:34,227 INFO L273 TraceCheckUtils]: 0: Hoare triple {26155#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {26157#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 0) (<= main_n 44)))} is VALID [2019-02-27 13:02:34,228 INFO L273 TraceCheckUtils]: 1: Hoare triple {26157#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 0) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26158#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 4)))} is VALID [2019-02-27 13:02:34,229 INFO L273 TraceCheckUtils]: 2: Hoare triple {26158#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 4)))} assume i <= n * 4; {26158#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 4)))} is VALID [2019-02-27 13:02:34,230 INFO L273 TraceCheckUtils]: 3: Hoare triple {26158#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {26159#(and (or (<= main_i 8) (<= main_n 44)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-02-27 13:02:34,231 INFO L273 TraceCheckUtils]: 4: Hoare triple {26159#(and (or (<= main_i 8) (<= main_n 44)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26159#(and (or (<= main_i 8) (<= main_n 44)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-02-27 13:02:34,232 INFO L273 TraceCheckUtils]: 5: Hoare triple {26159#(and (or (<= main_i 8) (<= main_n 44)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26160#(and (or (<= main_n 44) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-02-27 13:02:34,233 INFO L273 TraceCheckUtils]: 6: Hoare triple {26160#(and (or (<= main_n 44) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26160#(and (or (<= main_n 44) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-02-27 13:02:34,234 INFO L273 TraceCheckUtils]: 7: Hoare triple {26160#(and (or (<= main_n 44) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26161#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 16)))} is VALID [2019-02-27 13:02:34,235 INFO L273 TraceCheckUtils]: 8: Hoare triple {26161#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 16)))} assume i <= n * 4; {26161#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 16)))} is VALID [2019-02-27 13:02:34,236 INFO L273 TraceCheckUtils]: 9: Hoare triple {26161#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {26162#(and (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 20) (<= main_n 44)))} is VALID [2019-02-27 13:02:34,236 INFO L273 TraceCheckUtils]: 10: Hoare triple {26162#(and (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 20) (<= main_n 44)))} assume i <= n * 4; {26162#(and (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 20) (<= main_n 44)))} is VALID [2019-02-27 13:02:34,237 INFO L273 TraceCheckUtils]: 11: Hoare triple {26162#(and (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 20) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26163#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 24) (<= main_n 44)))} is VALID [2019-02-27 13:02:34,238 INFO L273 TraceCheckUtils]: 12: Hoare triple {26163#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 24) (<= main_n 44)))} assume i <= n * 4; {26163#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 24) (<= main_n 44)))} is VALID [2019-02-27 13:02:34,239 INFO L273 TraceCheckUtils]: 13: Hoare triple {26163#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 24) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26164#(and (or (<= main_n 44) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-02-27 13:02:34,240 INFO L273 TraceCheckUtils]: 14: Hoare triple {26164#(and (or (<= main_n 44) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26164#(and (or (<= main_n 44) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-02-27 13:02:34,241 INFO L273 TraceCheckUtils]: 15: Hoare triple {26164#(and (or (<= main_n 44) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26165#(and (or (<= main_i 32) (<= main_n 44)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-02-27 13:02:34,242 INFO L273 TraceCheckUtils]: 16: Hoare triple {26165#(and (or (<= main_i 32) (<= main_n 44)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26165#(and (or (<= main_i 32) (<= main_n 44)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-02-27 13:02:34,243 INFO L273 TraceCheckUtils]: 17: Hoare triple {26165#(and (or (<= main_i 32) (<= main_n 44)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26166#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 44 main_n)) (or (<= main_i 36) (<= main_n 44)))} is VALID [2019-02-27 13:02:34,244 INFO L273 TraceCheckUtils]: 18: Hoare triple {26166#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 44 main_n)) (or (<= main_i 36) (<= main_n 44)))} assume i <= n * 4; {26166#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 44 main_n)) (or (<= main_i 36) (<= main_n 44)))} is VALID [2019-02-27 13:02:34,245 INFO L273 TraceCheckUtils]: 19: Hoare triple {26166#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 44 main_n)) (or (<= main_i 36) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26167#(and (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 40) (<= main_n 44)))} is VALID [2019-02-27 13:02:34,246 INFO L273 TraceCheckUtils]: 20: Hoare triple {26167#(and (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 40) (<= main_n 44)))} assume i <= n * 4; {26167#(and (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 40) (<= main_n 44)))} is VALID [2019-02-27 13:02:34,247 INFO L273 TraceCheckUtils]: 21: Hoare triple {26167#(and (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 40) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26168#(and (or (<= main_n 44) (<= main_i 44)) (or (< 44 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:02:34,250 INFO L273 TraceCheckUtils]: 22: Hoare triple {26168#(and (or (<= main_n 44) (<= main_i 44)) (or (< 44 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {26168#(and (or (<= main_n 44) (<= main_i 44)) (or (< 44 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:02:34,251 INFO L273 TraceCheckUtils]: 23: Hoare triple {26168#(and (or (<= main_n 44) (<= main_i 44)) (or (< 44 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {26169#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 48)))} is VALID [2019-02-27 13:02:34,252 INFO L273 TraceCheckUtils]: 24: Hoare triple {26169#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 48)))} assume i <= n * 4; {26169#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 48)))} is VALID [2019-02-27 13:02:34,252 INFO L273 TraceCheckUtils]: 25: Hoare triple {26169#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 48)))} assume a[i] != 23;i := i + 4; {26170#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 52) (<= main_n 44)))} is VALID [2019-02-27 13:02:34,253 INFO L273 TraceCheckUtils]: 26: Hoare triple {26170#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 52) (<= main_n 44)))} assume i <= n * 4; {26170#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 52) (<= main_n 44)))} is VALID [2019-02-27 13:02:34,254 INFO L273 TraceCheckUtils]: 27: Hoare triple {26170#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 52) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26171#(and (or (<= main_i 56) (<= main_n 44)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-02-27 13:02:34,254 INFO L273 TraceCheckUtils]: 28: Hoare triple {26171#(and (or (<= main_i 56) (<= main_n 44)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26171#(and (or (<= main_i 56) (<= main_n 44)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-02-27 13:02:34,255 INFO L273 TraceCheckUtils]: 29: Hoare triple {26171#(and (or (<= main_i 56) (<= main_n 44)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26172#(and (or (<= main_i 60) (<= main_n 44)) (or (< 44 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:02:34,256 INFO L273 TraceCheckUtils]: 30: Hoare triple {26172#(and (or (<= main_i 60) (<= main_n 44)) (or (< 44 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {26172#(and (or (<= main_i 60) (<= main_n 44)) (or (< 44 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:02:34,257 INFO L273 TraceCheckUtils]: 31: Hoare triple {26172#(and (or (<= main_i 60) (<= main_n 44)) (or (< 44 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {26173#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 64) (<= main_n 44)))} is VALID [2019-02-27 13:02:34,258 INFO L273 TraceCheckUtils]: 32: Hoare triple {26173#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 64) (<= main_n 44)))} assume i <= n * 4; {26173#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 64) (<= main_n 44)))} is VALID [2019-02-27 13:02:34,259 INFO L273 TraceCheckUtils]: 33: Hoare triple {26173#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 64) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26174#(and (or (<= main_n 44) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-02-27 13:02:34,260 INFO L273 TraceCheckUtils]: 34: Hoare triple {26174#(and (or (<= main_n 44) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26174#(and (or (<= main_n 44) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-02-27 13:02:34,261 INFO L273 TraceCheckUtils]: 35: Hoare triple {26174#(and (or (<= main_n 44) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26175#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 72)))} is VALID [2019-02-27 13:02:34,262 INFO L273 TraceCheckUtils]: 36: Hoare triple {26175#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 72)))} assume i <= n * 4; {26175#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 72)))} is VALID [2019-02-27 13:02:34,263 INFO L273 TraceCheckUtils]: 37: Hoare triple {26175#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 72)))} assume a[i] != 23;i := i + 4; {26176#(and (or (<= main_i 76) (<= main_n 44)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-02-27 13:02:34,263 INFO L273 TraceCheckUtils]: 38: Hoare triple {26176#(and (or (<= main_i 76) (<= main_n 44)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26176#(and (or (<= main_i 76) (<= main_n 44)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-02-27 13:02:34,264 INFO L273 TraceCheckUtils]: 39: Hoare triple {26176#(and (or (<= main_i 76) (<= main_n 44)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26177#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 80)))} is VALID [2019-02-27 13:02:34,265 INFO L273 TraceCheckUtils]: 40: Hoare triple {26177#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 80)))} assume i <= n * 4; {26177#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 80)))} is VALID [2019-02-27 13:02:34,266 INFO L273 TraceCheckUtils]: 41: Hoare triple {26177#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 80)))} assume a[i] != 23;i := i + 4; {26178#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 44 main_n)) (or (<= main_i 84) (<= main_n 44)))} is VALID [2019-02-27 13:02:34,267 INFO L273 TraceCheckUtils]: 42: Hoare triple {26178#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 44 main_n)) (or (<= main_i 84) (<= main_n 44)))} assume i <= n * 4; {26178#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 44 main_n)) (or (<= main_i 84) (<= main_n 44)))} is VALID [2019-02-27 13:02:34,268 INFO L273 TraceCheckUtils]: 43: Hoare triple {26178#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 44 main_n)) (or (<= main_i 84) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26179#(and (or (<= main_i 88) (<= main_n 44)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-02-27 13:02:34,269 INFO L273 TraceCheckUtils]: 44: Hoare triple {26179#(and (or (<= main_i 88) (<= main_n 44)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26179#(and (or (<= main_i 88) (<= main_n 44)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-02-27 13:02:34,270 INFO L273 TraceCheckUtils]: 45: Hoare triple {26179#(and (or (<= main_i 88) (<= main_n 44)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26180#(and (or (< 44 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 44)))} is VALID [2019-02-27 13:02:34,271 INFO L273 TraceCheckUtils]: 46: Hoare triple {26180#(and (or (< 44 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 44)))} assume i <= n * 4; {26180#(and (or (< 44 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 44)))} is VALID [2019-02-27 13:02:34,272 INFO L273 TraceCheckUtils]: 47: Hoare triple {26180#(and (or (< 44 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26181#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 96) (<= main_n 44)))} is VALID [2019-02-27 13:02:34,273 INFO L273 TraceCheckUtils]: 48: Hoare triple {26181#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 96) (<= main_n 44)))} assume i <= n * 4; {26181#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 96) (<= main_n 44)))} is VALID [2019-02-27 13:02:34,274 INFO L273 TraceCheckUtils]: 49: Hoare triple {26181#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 96) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26182#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 100) (<= main_n 44)))} is VALID [2019-02-27 13:02:34,275 INFO L273 TraceCheckUtils]: 50: Hoare triple {26182#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 100) (<= main_n 44)))} assume i <= n * 4; {26182#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 100) (<= main_n 44)))} is VALID [2019-02-27 13:02:34,276 INFO L273 TraceCheckUtils]: 51: Hoare triple {26182#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 100) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26183#(and (or (<= main_i 104) (<= main_n 44)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-02-27 13:02:34,276 INFO L273 TraceCheckUtils]: 52: Hoare triple {26183#(and (or (<= main_i 104) (<= main_n 44)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26183#(and (or (<= main_i 104) (<= main_n 44)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-02-27 13:02:34,277 INFO L273 TraceCheckUtils]: 53: Hoare triple {26183#(and (or (<= main_i 104) (<= main_n 44)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26184#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 108)))} is VALID [2019-02-27 13:02:34,278 INFO L273 TraceCheckUtils]: 54: Hoare triple {26184#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 108)))} assume i <= n * 4; {26184#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 108)))} is VALID [2019-02-27 13:02:34,279 INFO L273 TraceCheckUtils]: 55: Hoare triple {26184#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 108)))} assume a[i] != 23;i := i + 4; {26185#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 112)))} is VALID [2019-02-27 13:02:34,280 INFO L273 TraceCheckUtils]: 56: Hoare triple {26185#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 112)))} assume i <= n * 4; {26185#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 112)))} is VALID [2019-02-27 13:02:34,281 INFO L273 TraceCheckUtils]: 57: Hoare triple {26185#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 112)))} assume a[i] != 23;i := i + 4; {26186#(and (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 116) (<= main_n 44)))} is VALID [2019-02-27 13:02:34,282 INFO L273 TraceCheckUtils]: 58: Hoare triple {26186#(and (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 116) (<= main_n 44)))} assume i <= n * 4; {26186#(and (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 116) (<= main_n 44)))} is VALID [2019-02-27 13:02:34,283 INFO L273 TraceCheckUtils]: 59: Hoare triple {26186#(and (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 116) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26187#(and (or (<= main_i 120) (<= main_n 44)) (or (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-02-27 13:02:34,284 INFO L273 TraceCheckUtils]: 60: Hoare triple {26187#(and (or (<= main_i 120) (<= main_n 44)) (or (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26187#(and (or (<= main_i 120) (<= main_n 44)) (or (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-02-27 13:02:34,285 INFO L273 TraceCheckUtils]: 61: Hoare triple {26187#(and (or (<= main_i 120) (<= main_n 44)) (or (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26188#(and (or (<= main_n 44) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-02-27 13:02:34,286 INFO L273 TraceCheckUtils]: 62: Hoare triple {26188#(and (or (<= main_n 44) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26188#(and (or (<= main_n 44) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-02-27 13:02:34,287 INFO L273 TraceCheckUtils]: 63: Hoare triple {26188#(and (or (<= main_n 44) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26189#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 44 main_n)) (or (<= main_i 128) (<= main_n 44)))} is VALID [2019-02-27 13:02:34,288 INFO L273 TraceCheckUtils]: 64: Hoare triple {26189#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 44 main_n)) (or (<= main_i 128) (<= main_n 44)))} assume i <= n * 4; {26189#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 44 main_n)) (or (<= main_i 128) (<= main_n 44)))} is VALID [2019-02-27 13:02:34,289 INFO L273 TraceCheckUtils]: 65: Hoare triple {26189#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 44 main_n)) (or (<= main_i 128) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26190#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 132) (<= main_n 44)))} is VALID [2019-02-27 13:02:34,289 INFO L273 TraceCheckUtils]: 66: Hoare triple {26190#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 132) (<= main_n 44)))} assume i <= n * 4; {26190#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 132) (<= main_n 44)))} is VALID [2019-02-27 13:02:34,290 INFO L273 TraceCheckUtils]: 67: Hoare triple {26190#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 132) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26191#(and (or (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 136) (<= main_n 44)))} is VALID [2019-02-27 13:02:34,291 INFO L273 TraceCheckUtils]: 68: Hoare triple {26191#(and (or (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 136) (<= main_n 44)))} assume i <= n * 4; {26191#(and (or (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 136) (<= main_n 44)))} is VALID [2019-02-27 13:02:34,292 INFO L273 TraceCheckUtils]: 69: Hoare triple {26191#(and (or (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 136) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26192#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 140)))} is VALID [2019-02-27 13:02:34,293 INFO L273 TraceCheckUtils]: 70: Hoare triple {26192#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 140)))} assume i <= n * 4; {26192#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 140)))} is VALID [2019-02-27 13:02:34,294 INFO L273 TraceCheckUtils]: 71: Hoare triple {26192#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 140)))} assume a[i] != 23;i := i + 4; {26193#(and (or (< 44 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 44) (<= main_i 144)))} is VALID [2019-02-27 13:02:34,295 INFO L273 TraceCheckUtils]: 72: Hoare triple {26193#(and (or (< 44 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 44) (<= main_i 144)))} assume i <= n * 4; {26193#(and (or (< 44 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 44) (<= main_i 144)))} is VALID [2019-02-27 13:02:34,296 INFO L273 TraceCheckUtils]: 73: Hoare triple {26193#(and (or (< 44 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 44) (<= main_i 144)))} assume a[i] != 23;i := i + 4; {26194#(and (or (< 44 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 44) (<= main_i 148)))} is VALID [2019-02-27 13:02:34,297 INFO L273 TraceCheckUtils]: 74: Hoare triple {26194#(and (or (< 44 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 44) (<= main_i 148)))} assume i <= n * 4; {26194#(and (or (< 44 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 44) (<= main_i 148)))} is VALID [2019-02-27 13:02:34,298 INFO L273 TraceCheckUtils]: 75: Hoare triple {26194#(and (or (< 44 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 44) (<= main_i 148)))} assume a[i] != 23;i := i + 4; {26195#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 152)))} is VALID [2019-02-27 13:02:34,299 INFO L273 TraceCheckUtils]: 76: Hoare triple {26195#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 152)))} assume i <= n * 4; {26195#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 152)))} is VALID [2019-02-27 13:02:34,300 INFO L273 TraceCheckUtils]: 77: Hoare triple {26195#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 152)))} assume a[i] != 23;i := i + 4; {26196#(and (or (<= main_i 156) (<= main_n 44)) (or (< 44 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:02:34,301 INFO L273 TraceCheckUtils]: 78: Hoare triple {26196#(and (or (<= main_i 156) (<= main_n 44)) (or (< 44 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {26196#(and (or (<= main_i 156) (<= main_n 44)) (or (< 44 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:02:34,302 INFO L273 TraceCheckUtils]: 79: Hoare triple {26196#(and (or (<= main_i 156) (<= main_n 44)) (or (< 44 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {26197#(and (or (<= main_n 44) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-02-27 13:02:34,303 INFO L273 TraceCheckUtils]: 80: Hoare triple {26197#(and (or (<= main_n 44) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26197#(and (or (<= main_n 44) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-02-27 13:02:34,304 INFO L273 TraceCheckUtils]: 81: Hoare triple {26197#(and (or (<= main_n 44) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26198#(and (or (<= main_i 164) (<= main_n 44)) (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-02-27 13:02:34,304 INFO L273 TraceCheckUtils]: 82: Hoare triple {26198#(and (or (<= main_i 164) (<= main_n 44)) (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26198#(and (or (<= main_i 164) (<= main_n 44)) (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-02-27 13:02:34,305 INFO L273 TraceCheckUtils]: 83: Hoare triple {26198#(and (or (<= main_i 164) (<= main_n 44)) (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26199#(and (or (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 168)))} is VALID [2019-02-27 13:02:34,306 INFO L273 TraceCheckUtils]: 84: Hoare triple {26199#(and (or (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 168)))} assume i <= n * 4; {26199#(and (or (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 168)))} is VALID [2019-02-27 13:02:34,307 INFO L273 TraceCheckUtils]: 85: Hoare triple {26199#(and (or (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 168)))} assume a[i] != 23;i := i + 4; {26200#(and (or (<= main_i 172) (<= main_n 44)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-02-27 13:02:34,308 INFO L273 TraceCheckUtils]: 86: Hoare triple {26200#(and (or (<= main_i 172) (<= main_n 44)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26200#(and (or (<= main_i 172) (<= main_n 44)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2019-02-27 13:02:34,309 INFO L273 TraceCheckUtils]: 87: Hoare triple {26200#(and (or (<= main_i 172) (<= main_n 44)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26201#(and (or (<= main_i 176) (<= main_n 44)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 44 main_n)))} is VALID [2019-02-27 13:02:34,310 INFO L273 TraceCheckUtils]: 88: Hoare triple {26201#(and (or (<= main_i 176) (<= main_n 44)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 44 main_n)))} assume i <= n * 4; {26202#(and (<= main_i 176) (or (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i))) (< 44 main_n)))} is VALID [2019-02-27 13:02:34,311 INFO L273 TraceCheckUtils]: 89: Hoare triple {26202#(and (<= main_i 176) (or (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26203#(and (<= main_i 180) (<= 45 main_n))} is VALID [2019-02-27 13:02:34,312 INFO L273 TraceCheckUtils]: 90: Hoare triple {26203#(and (<= main_i 180) (<= 45 main_n))} assume !(i <= n * 4); {26156#false} is VALID [2019-02-27 13:02:34,349 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 0 proven. 1980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:02:34,349 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 13:02:34,349 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 13:02:34,349 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 13:02:34,350 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 13:02:34,350 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 13:02:34,350 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 13:02:34,357 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-27 13:02:34,358 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-27 13:02:34,422 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 45 check-sat command(s) [2019-02-27 13:02:34,423 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 13:02:34,424 WARN L254 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 95 conjunts are in the unsatisfiable core [2019-02-27 13:02:34,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:02:34,438 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 13:02:34,452 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 13:02:34,454 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 13:02:34,463 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 13:02:34,463 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 13:02:34,465 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 13:02:34,465 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_48]. (and (= (store v_main_a_48 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-27 13:02:34,465 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 13:02:37,819 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 13:02:37,820 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 13:02:37,826 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 13:02:37,827 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 13:02:37,829 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 13:02:37,829 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 180) (<= 176 .cse0) (= 23 (select main_a .cse0)) (not (= 23 (select main_a 176))))) [2019-02-27 13:02:37,830 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 176 .cse0)) (<= main_i 180) (<= 176 .cse0))) [2019-02-27 13:02:37,894 INFO L273 TraceCheckUtils]: 0: Hoare triple {26155#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {26207#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,895 INFO L273 TraceCheckUtils]: 1: Hoare triple {26207#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26211#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 13:02:37,895 INFO L273 TraceCheckUtils]: 2: Hoare triple {26211#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {26211#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 13:02:37,896 INFO L273 TraceCheckUtils]: 3: Hoare triple {26211#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {26218#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,896 INFO L273 TraceCheckUtils]: 4: Hoare triple {26218#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26218#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,896 INFO L273 TraceCheckUtils]: 5: Hoare triple {26218#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26225#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 13:02:37,897 INFO L273 TraceCheckUtils]: 6: Hoare triple {26225#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {26225#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 13:02:37,897 INFO L273 TraceCheckUtils]: 7: Hoare triple {26225#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {26232#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,898 INFO L273 TraceCheckUtils]: 8: Hoare triple {26232#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26232#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,899 INFO L273 TraceCheckUtils]: 9: Hoare triple {26232#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26239#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,899 INFO L273 TraceCheckUtils]: 10: Hoare triple {26239#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26239#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,900 INFO L273 TraceCheckUtils]: 11: Hoare triple {26239#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26246#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,901 INFO L273 TraceCheckUtils]: 12: Hoare triple {26246#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26246#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,901 INFO L273 TraceCheckUtils]: 13: Hoare triple {26246#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26253#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,902 INFO L273 TraceCheckUtils]: 14: Hoare triple {26253#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26253#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,903 INFO L273 TraceCheckUtils]: 15: Hoare triple {26253#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26260#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,903 INFO L273 TraceCheckUtils]: 16: Hoare triple {26260#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26260#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,904 INFO L273 TraceCheckUtils]: 17: Hoare triple {26260#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26267#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,905 INFO L273 TraceCheckUtils]: 18: Hoare triple {26267#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26267#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,905 INFO L273 TraceCheckUtils]: 19: Hoare triple {26267#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26274#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,906 INFO L273 TraceCheckUtils]: 20: Hoare triple {26274#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26274#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,907 INFO L273 TraceCheckUtils]: 21: Hoare triple {26274#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26281#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,907 INFO L273 TraceCheckUtils]: 22: Hoare triple {26281#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26281#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,908 INFO L273 TraceCheckUtils]: 23: Hoare triple {26281#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26288#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,909 INFO L273 TraceCheckUtils]: 24: Hoare triple {26288#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26288#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,910 INFO L273 TraceCheckUtils]: 25: Hoare triple {26288#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26295#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,910 INFO L273 TraceCheckUtils]: 26: Hoare triple {26295#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26295#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,911 INFO L273 TraceCheckUtils]: 27: Hoare triple {26295#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26302#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,912 INFO L273 TraceCheckUtils]: 28: Hoare triple {26302#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26302#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,912 INFO L273 TraceCheckUtils]: 29: Hoare triple {26302#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26309#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,913 INFO L273 TraceCheckUtils]: 30: Hoare triple {26309#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26309#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,914 INFO L273 TraceCheckUtils]: 31: Hoare triple {26309#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26316#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,914 INFO L273 TraceCheckUtils]: 32: Hoare triple {26316#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26316#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,915 INFO L273 TraceCheckUtils]: 33: Hoare triple {26316#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26323#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,916 INFO L273 TraceCheckUtils]: 34: Hoare triple {26323#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26323#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,917 INFO L273 TraceCheckUtils]: 35: Hoare triple {26323#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26330#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,917 INFO L273 TraceCheckUtils]: 36: Hoare triple {26330#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26330#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,918 INFO L273 TraceCheckUtils]: 37: Hoare triple {26330#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26337#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,919 INFO L273 TraceCheckUtils]: 38: Hoare triple {26337#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26337#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,919 INFO L273 TraceCheckUtils]: 39: Hoare triple {26337#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26344#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 13:02:37,920 INFO L273 TraceCheckUtils]: 40: Hoare triple {26344#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {26344#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 13:02:37,921 INFO L273 TraceCheckUtils]: 41: Hoare triple {26344#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {26351#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,922 INFO L273 TraceCheckUtils]: 42: Hoare triple {26351#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26351#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,922 INFO L273 TraceCheckUtils]: 43: Hoare triple {26351#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26358#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,923 INFO L273 TraceCheckUtils]: 44: Hoare triple {26358#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26358#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,924 INFO L273 TraceCheckUtils]: 45: Hoare triple {26358#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26365#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,925 INFO L273 TraceCheckUtils]: 46: Hoare triple {26365#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26365#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,925 INFO L273 TraceCheckUtils]: 47: Hoare triple {26365#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26372#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,926 INFO L273 TraceCheckUtils]: 48: Hoare triple {26372#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26372#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,927 INFO L273 TraceCheckUtils]: 49: Hoare triple {26372#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26379#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,927 INFO L273 TraceCheckUtils]: 50: Hoare triple {26379#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26379#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,928 INFO L273 TraceCheckUtils]: 51: Hoare triple {26379#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26386#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,929 INFO L273 TraceCheckUtils]: 52: Hoare triple {26386#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26386#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,929 INFO L273 TraceCheckUtils]: 53: Hoare triple {26386#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26393#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,930 INFO L273 TraceCheckUtils]: 54: Hoare triple {26393#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26393#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,931 INFO L273 TraceCheckUtils]: 55: Hoare triple {26393#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26400#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,931 INFO L273 TraceCheckUtils]: 56: Hoare triple {26400#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26400#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,932 INFO L273 TraceCheckUtils]: 57: Hoare triple {26400#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26407#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,933 INFO L273 TraceCheckUtils]: 58: Hoare triple {26407#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26407#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,933 INFO L273 TraceCheckUtils]: 59: Hoare triple {26407#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26414#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,934 INFO L273 TraceCheckUtils]: 60: Hoare triple {26414#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26414#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,935 INFO L273 TraceCheckUtils]: 61: Hoare triple {26414#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26421#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,935 INFO L273 TraceCheckUtils]: 62: Hoare triple {26421#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26421#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,936 INFO L273 TraceCheckUtils]: 63: Hoare triple {26421#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26428#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,937 INFO L273 TraceCheckUtils]: 64: Hoare triple {26428#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26428#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,937 INFO L273 TraceCheckUtils]: 65: Hoare triple {26428#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26435#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,938 INFO L273 TraceCheckUtils]: 66: Hoare triple {26435#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26435#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,939 INFO L273 TraceCheckUtils]: 67: Hoare triple {26435#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26442#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,939 INFO L273 TraceCheckUtils]: 68: Hoare triple {26442#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26442#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,940 INFO L273 TraceCheckUtils]: 69: Hoare triple {26442#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26449#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 13:02:37,941 INFO L273 TraceCheckUtils]: 70: Hoare triple {26449#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {26449#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 13:02:37,942 INFO L273 TraceCheckUtils]: 71: Hoare triple {26449#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {26456#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,942 INFO L273 TraceCheckUtils]: 72: Hoare triple {26456#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26456#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,943 INFO L273 TraceCheckUtils]: 73: Hoare triple {26456#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26463#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,944 INFO L273 TraceCheckUtils]: 74: Hoare triple {26463#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26463#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,944 INFO L273 TraceCheckUtils]: 75: Hoare triple {26463#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26470#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,945 INFO L273 TraceCheckUtils]: 76: Hoare triple {26470#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26470#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,946 INFO L273 TraceCheckUtils]: 77: Hoare triple {26470#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26477#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,946 INFO L273 TraceCheckUtils]: 78: Hoare triple {26477#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26477#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,947 INFO L273 TraceCheckUtils]: 79: Hoare triple {26477#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26484#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,948 INFO L273 TraceCheckUtils]: 80: Hoare triple {26484#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26484#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,948 INFO L273 TraceCheckUtils]: 81: Hoare triple {26484#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26491#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-02-27 13:02:37,949 INFO L273 TraceCheckUtils]: 82: Hoare triple {26491#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {26491#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-02-27 13:02:37,950 INFO L273 TraceCheckUtils]: 83: Hoare triple {26491#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {26498#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,951 INFO L273 TraceCheckUtils]: 84: Hoare triple {26498#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26498#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,951 INFO L273 TraceCheckUtils]: 85: Hoare triple {26498#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26505#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,952 INFO L273 TraceCheckUtils]: 86: Hoare triple {26505#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26505#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,953 INFO L273 TraceCheckUtils]: 87: Hoare triple {26505#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26512#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,953 INFO L273 TraceCheckUtils]: 88: Hoare triple {26512#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26516#(and (= main_i 176) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:02:37,954 INFO L273 TraceCheckUtils]: 89: Hoare triple {26516#(and (= main_i 176) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26203#(and (<= main_i 180) (<= 45 main_n))} is VALID [2019-02-27 13:02:37,955 INFO L273 TraceCheckUtils]: 90: Hoare triple {26203#(and (<= main_i 180) (<= 45 main_n))} assume !(i <= n * 4); {26156#false} is VALID [2019-02-27 13:02:37,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 0 proven. 1980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:02:37,974 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 13:02:43,738 WARN L181 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2019-02-27 13:02:44,255 INFO L273 TraceCheckUtils]: 90: Hoare triple {26523#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {26156#false} is VALID [2019-02-27 13:02:44,256 INFO L273 TraceCheckUtils]: 89: Hoare triple {26527#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {26523#(<= main_i (* 4 main_n))} is VALID [2019-02-27 13:02:44,256 INFO L273 TraceCheckUtils]: 88: Hoare triple {26531#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {26527#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:02:44,257 INFO L273 TraceCheckUtils]: 87: Hoare triple {26535#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {26531#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:02:44,257 INFO L273 TraceCheckUtils]: 86: Hoare triple {26535#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {26535#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:02:44,258 INFO L273 TraceCheckUtils]: 85: Hoare triple {26542#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {26535#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:02:44,258 INFO L273 TraceCheckUtils]: 84: Hoare triple {26542#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {26542#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:02:44,259 INFO L273 TraceCheckUtils]: 83: Hoare triple {26549#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {26542#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:02:44,259 INFO L273 TraceCheckUtils]: 82: Hoare triple {26549#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {26549#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:02:44,261 INFO L273 TraceCheckUtils]: 81: Hoare triple {26556#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {26549#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:02:44,261 INFO L273 TraceCheckUtils]: 80: Hoare triple {26556#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {26556#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:02:44,262 INFO L273 TraceCheckUtils]: 79: Hoare triple {26563#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26556#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:02:44,263 INFO L273 TraceCheckUtils]: 78: Hoare triple {26563#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {26563#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:02:44,264 INFO L273 TraceCheckUtils]: 77: Hoare triple {26570#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {26563#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:02:44,264 INFO L273 TraceCheckUtils]: 76: Hoare triple {26570#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {26570#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:02:44,266 INFO L273 TraceCheckUtils]: 75: Hoare triple {26577#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26570#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:02:44,266 INFO L273 TraceCheckUtils]: 74: Hoare triple {26577#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {26577#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:02:44,267 INFO L273 TraceCheckUtils]: 73: Hoare triple {26584#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26577#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:02:44,268 INFO L273 TraceCheckUtils]: 72: Hoare triple {26584#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {26584#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:02:44,269 INFO L273 TraceCheckUtils]: 71: Hoare triple {26591#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26584#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:02:44,269 INFO L273 TraceCheckUtils]: 70: Hoare triple {26591#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {26591#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:02:44,270 INFO L273 TraceCheckUtils]: 69: Hoare triple {26598#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {26591#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:02:44,271 INFO L273 TraceCheckUtils]: 68: Hoare triple {26598#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {26598#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:02:44,272 INFO L273 TraceCheckUtils]: 67: Hoare triple {26605#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26598#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:02:44,273 INFO L273 TraceCheckUtils]: 66: Hoare triple {26605#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {26605#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:02:44,274 INFO L273 TraceCheckUtils]: 65: Hoare triple {26612#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26605#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:02:44,274 INFO L273 TraceCheckUtils]: 64: Hoare triple {26612#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {26612#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:02:44,275 INFO L273 TraceCheckUtils]: 63: Hoare triple {26619#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {26612#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:02:44,276 INFO L273 TraceCheckUtils]: 62: Hoare triple {26619#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {26619#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:02:44,277 INFO L273 TraceCheckUtils]: 61: Hoare triple {26626#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26619#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:02:44,278 INFO L273 TraceCheckUtils]: 60: Hoare triple {26626#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {26626#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:02:44,279 INFO L273 TraceCheckUtils]: 59: Hoare triple {26633#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {26626#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:02:44,279 INFO L273 TraceCheckUtils]: 58: Hoare triple {26633#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {26633#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:02:44,280 INFO L273 TraceCheckUtils]: 57: Hoare triple {26640#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {26633#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:02:44,281 INFO L273 TraceCheckUtils]: 56: Hoare triple {26640#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {26640#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:02:44,282 INFO L273 TraceCheckUtils]: 55: Hoare triple {26647#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {26640#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:02:44,282 INFO L273 TraceCheckUtils]: 54: Hoare triple {26647#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {26647#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:02:44,283 INFO L273 TraceCheckUtils]: 53: Hoare triple {26654#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {26647#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:02:44,284 INFO L273 TraceCheckUtils]: 52: Hoare triple {26654#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {26654#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:02:44,285 INFO L273 TraceCheckUtils]: 51: Hoare triple {26661#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {26654#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:02:44,285 INFO L273 TraceCheckUtils]: 50: Hoare triple {26661#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {26661#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:02:44,287 INFO L273 TraceCheckUtils]: 49: Hoare triple {26668#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {26661#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:02:44,287 INFO L273 TraceCheckUtils]: 48: Hoare triple {26668#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {26668#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:02:44,288 INFO L273 TraceCheckUtils]: 47: Hoare triple {26675#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26668#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:02:44,289 INFO L273 TraceCheckUtils]: 46: Hoare triple {26675#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {26675#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:02:44,290 INFO L273 TraceCheckUtils]: 45: Hoare triple {26682#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26675#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:02:44,290 INFO L273 TraceCheckUtils]: 44: Hoare triple {26682#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {26682#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:02:44,291 INFO L273 TraceCheckUtils]: 43: Hoare triple {26689#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26682#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:02:44,292 INFO L273 TraceCheckUtils]: 42: Hoare triple {26689#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {26689#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:02:44,293 INFO L273 TraceCheckUtils]: 41: Hoare triple {26696#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {26689#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:02:44,293 INFO L273 TraceCheckUtils]: 40: Hoare triple {26696#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {26696#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:02:44,295 INFO L273 TraceCheckUtils]: 39: Hoare triple {26703#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26696#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:02:44,295 INFO L273 TraceCheckUtils]: 38: Hoare triple {26703#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {26703#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:02:44,296 INFO L273 TraceCheckUtils]: 37: Hoare triple {26710#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {26703#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:02:44,297 INFO L273 TraceCheckUtils]: 36: Hoare triple {26710#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {26710#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:02:44,298 INFO L273 TraceCheckUtils]: 35: Hoare triple {26717#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {26710#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:02:44,298 INFO L273 TraceCheckUtils]: 34: Hoare triple {26717#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {26717#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:02:44,299 INFO L273 TraceCheckUtils]: 33: Hoare triple {26724#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {26717#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:02:44,300 INFO L273 TraceCheckUtils]: 32: Hoare triple {26724#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {26724#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:02:44,301 INFO L273 TraceCheckUtils]: 31: Hoare triple {26731#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26724#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:02:44,301 INFO L273 TraceCheckUtils]: 30: Hoare triple {26731#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {26731#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:02:44,303 INFO L273 TraceCheckUtils]: 29: Hoare triple {26738#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26731#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:02:44,303 INFO L273 TraceCheckUtils]: 28: Hoare triple {26738#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {26738#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:02:44,304 INFO L273 TraceCheckUtils]: 27: Hoare triple {26745#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {26738#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:02:44,305 INFO L273 TraceCheckUtils]: 26: Hoare triple {26745#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {26745#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:02:44,306 INFO L273 TraceCheckUtils]: 25: Hoare triple {26752#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26745#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:02:44,306 INFO L273 TraceCheckUtils]: 24: Hoare triple {26752#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {26752#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:02:44,307 INFO L273 TraceCheckUtils]: 23: Hoare triple {26759#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {26752#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:02:44,308 INFO L273 TraceCheckUtils]: 22: Hoare triple {26759#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {26759#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:02:44,309 INFO L273 TraceCheckUtils]: 21: Hoare triple {26766#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {26759#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:02:44,310 INFO L273 TraceCheckUtils]: 20: Hoare triple {26766#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {26766#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:02:44,311 INFO L273 TraceCheckUtils]: 19: Hoare triple {26773#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {26766#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:02:44,311 INFO L273 TraceCheckUtils]: 18: Hoare triple {26773#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {26773#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:02:44,312 INFO L273 TraceCheckUtils]: 17: Hoare triple {26780#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {26773#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:02:44,313 INFO L273 TraceCheckUtils]: 16: Hoare triple {26780#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {26780#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:02:44,314 INFO L273 TraceCheckUtils]: 15: Hoare triple {26787#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {26780#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:02:44,314 INFO L273 TraceCheckUtils]: 14: Hoare triple {26787#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {26787#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-02-27 13:02:44,316 INFO L273 TraceCheckUtils]: 13: Hoare triple {26794#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {26787#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-02-27 13:02:44,316 INFO L273 TraceCheckUtils]: 12: Hoare triple {26794#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {26794#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-02-27 13:02:44,317 INFO L273 TraceCheckUtils]: 11: Hoare triple {26801#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {26794#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-02-27 13:02:44,318 INFO L273 TraceCheckUtils]: 10: Hoare triple {26801#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {26801#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-02-27 13:02:44,319 INFO L273 TraceCheckUtils]: 9: Hoare triple {26808#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {26801#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-02-27 13:02:44,319 INFO L273 TraceCheckUtils]: 8: Hoare triple {26808#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {26808#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-02-27 13:02:44,321 INFO L273 TraceCheckUtils]: 7: Hoare triple {26815#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {26808#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-02-27 13:02:44,321 INFO L273 TraceCheckUtils]: 6: Hoare triple {26815#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {26815#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-02-27 13:02:44,322 INFO L273 TraceCheckUtils]: 5: Hoare triple {26822#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26815#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-02-27 13:02:44,323 INFO L273 TraceCheckUtils]: 4: Hoare triple {26822#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume i <= n * 4; {26822#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-02-27 13:02:44,324 INFO L273 TraceCheckUtils]: 3: Hoare triple {26829#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26822#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-02-27 13:02:44,324 INFO L273 TraceCheckUtils]: 2: Hoare triple {26829#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume i <= n * 4; {26829#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-02-27 13:02:44,325 INFO L273 TraceCheckUtils]: 1: Hoare triple {26836#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume a[i] != 23;i := i + 4; {26829#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-02-27 13:02:44,326 INFO L273 TraceCheckUtils]: 0: Hoare triple {26155#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {26836#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-02-27 13:02:44,359 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 0 proven. 1980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:02:44,377 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 13:02:44,377 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 140 [2019-02-27 13:02:44,377 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 13:02:44,377 INFO L78 Accepts]: Start accepts. Automaton has 95 states. Word has length 91 [2019-02-27 13:02:44,378 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 13:02:44,378 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 95 states. [2019-02-27 13:02:44,606 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 181 edges. 181 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 13:02:44,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 95 states [2019-02-27 13:02:44,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2019-02-27 13:02:44,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2452, Invalid=17570, Unknown=0, NotChecked=0, Total=20022 [2019-02-27 13:02:44,608 INFO L87 Difference]: Start difference. First operand 92 states and 92 transitions. Second operand 95 states. [2019-02-27 13:02:58,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:02:58,479 INFO L93 Difference]: Finished difference Result 96 states and 96 transitions. [2019-02-27 13:02:58,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2019-02-27 13:02:58,479 INFO L78 Accepts]: Start accepts. Automaton has 95 states. Word has length 91 [2019-02-27 13:02:58,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 13:02:58,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-02-27 13:02:58,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 96 transitions. [2019-02-27 13:02:58,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-02-27 13:02:58,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 96 transitions. [2019-02-27 13:02:58,481 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 49 states and 96 transitions. [2019-02-27 13:02:58,588 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 96 edges. 96 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 13:02:58,590 INFO L225 Difference]: With dead ends: 96 [2019-02-27 13:02:58,590 INFO L226 Difference]: Without dead ends: 95 [2019-02-27 13:02:58,591 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4508 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=2452, Invalid=17570, Unknown=0, NotChecked=0, Total=20022 [2019-02-27 13:02:58,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-02-27 13:02:58,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 94. [2019-02-27 13:02:58,683 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 13:02:58,683 INFO L82 GeneralOperation]: Start isEquivalent. First operand 95 states. Second operand 94 states. [2019-02-27 13:02:58,683 INFO L74 IsIncluded]: Start isIncluded. First operand 95 states. Second operand 94 states. [2019-02-27 13:02:58,684 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 94 states. [2019-02-27 13:02:58,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:02:58,685 INFO L93 Difference]: Finished difference Result 95 states and 95 transitions. [2019-02-27 13:02:58,685 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 95 transitions. [2019-02-27 13:02:58,685 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 13:02:58,686 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 13:02:58,686 INFO L74 IsIncluded]: Start isIncluded. First operand 94 states. Second operand 95 states. [2019-02-27 13:02:58,686 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 95 states. [2019-02-27 13:02:58,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:02:58,687 INFO L93 Difference]: Finished difference Result 95 states and 95 transitions. [2019-02-27 13:02:58,687 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 95 transitions. [2019-02-27 13:02:58,687 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 13:02:58,687 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 13:02:58,687 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 13:02:58,687 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 13:02:58,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-02-27 13:02:58,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 94 transitions. [2019-02-27 13:02:58,688 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 94 transitions. Word has length 91 [2019-02-27 13:02:58,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 13:02:58,689 INFO L480 AbstractCegarLoop]: Abstraction has 94 states and 94 transitions. [2019-02-27 13:02:58,689 INFO L481 AbstractCegarLoop]: Interpolant automaton has 95 states. [2019-02-27 13:02:58,691 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 94 transitions. [2019-02-27 13:02:58,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-02-27 13:02:58,691 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 13:02:58,691 INFO L402 BasicCegarLoop]: trace histogram [46, 45, 1, 1] [2019-02-27 13:02:58,692 INFO L423 AbstractCegarLoop]: === Iteration 46 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 13:02:58,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 13:02:58,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1904524666, now seen corresponding path program 45 times [2019-02-27 13:02:58,692 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 13:02:58,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 13:02:58,693 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 13:02:58,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 13:02:58,693 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 13:02:58,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:02:59,135 WARN L181 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-02-27 13:03:01,816 INFO L273 TraceCheckUtils]: 0: Hoare triple {27312#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {27314#(and (or (<= main_n 45) (<= main_i 0)) (or (< 45 main_n) (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:03:01,817 INFO L273 TraceCheckUtils]: 1: Hoare triple {27314#(and (or (<= main_n 45) (<= main_i 0)) (or (< 45 main_n) (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27315#(and (or (<= main_n 45) (<= main_i 4)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2019-02-27 13:03:01,817 INFO L273 TraceCheckUtils]: 2: Hoare triple {27315#(and (or (<= main_n 45) (<= main_i 4)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume i <= n * 4; {27315#(and (or (<= main_n 45) (<= main_i 4)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2019-02-27 13:03:01,818 INFO L273 TraceCheckUtils]: 3: Hoare triple {27315#(and (or (<= main_n 45) (<= main_i 4)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume a[i] != 23;i := i + 4; {27316#(and (or (<= main_n 45) (<= main_i 8)) (or (< 45 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:03:01,818 INFO L273 TraceCheckUtils]: 4: Hoare triple {27316#(and (or (<= main_n 45) (<= main_i 8)) (or (< 45 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27316#(and (or (<= main_n 45) (<= main_i 8)) (or (< 45 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:03:01,819 INFO L273 TraceCheckUtils]: 5: Hoare triple {27316#(and (or (<= main_n 45) (<= main_i 8)) (or (< 45 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27317#(and (or (< 45 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 12)))} is VALID [2019-02-27 13:03:01,820 INFO L273 TraceCheckUtils]: 6: Hoare triple {27317#(and (or (< 45 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 12)))} assume i <= n * 4; {27317#(and (or (< 45 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 12)))} is VALID [2019-02-27 13:03:01,821 INFO L273 TraceCheckUtils]: 7: Hoare triple {27317#(and (or (< 45 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {27318#(and (or (< 45 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 16)))} is VALID [2019-02-27 13:03:01,822 INFO L273 TraceCheckUtils]: 8: Hoare triple {27318#(and (or (< 45 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 16)))} assume i <= n * 4; {27318#(and (or (< 45 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 16)))} is VALID [2019-02-27 13:03:01,823 INFO L273 TraceCheckUtils]: 9: Hoare triple {27318#(and (or (< 45 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {27319#(and (or (< 45 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 20)))} is VALID [2019-02-27 13:03:01,824 INFO L273 TraceCheckUtils]: 10: Hoare triple {27319#(and (or (< 45 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 20)))} assume i <= n * 4; {27319#(and (or (< 45 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 20)))} is VALID [2019-02-27 13:03:01,825 INFO L273 TraceCheckUtils]: 11: Hoare triple {27319#(and (or (< 45 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 20)))} assume a[i] != 23;i := i + 4; {27320#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 24)))} is VALID [2019-02-27 13:03:01,826 INFO L273 TraceCheckUtils]: 12: Hoare triple {27320#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 24)))} assume i <= n * 4; {27320#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 24)))} is VALID [2019-02-27 13:03:01,827 INFO L273 TraceCheckUtils]: 13: Hoare triple {27320#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 24)))} assume a[i] != 23;i := i + 4; {27321#(and (or (<= main_n 45) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)))} is VALID [2019-02-27 13:03:01,827 INFO L273 TraceCheckUtils]: 14: Hoare triple {27321#(and (or (<= main_n 45) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)))} assume i <= n * 4; {27321#(and (or (<= main_n 45) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)))} is VALID [2019-02-27 13:03:01,828 INFO L273 TraceCheckUtils]: 15: Hoare triple {27321#(and (or (<= main_n 45) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)))} assume a[i] != 23;i := i + 4; {27322#(and (or (<= main_i 32) (<= main_n 45)) (or (< 45 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:03:01,829 INFO L273 TraceCheckUtils]: 16: Hoare triple {27322#(and (or (<= main_i 32) (<= main_n 45)) (or (< 45 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27322#(and (or (<= main_i 32) (<= main_n 45)) (or (< 45 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:03:01,830 INFO L273 TraceCheckUtils]: 17: Hoare triple {27322#(and (or (<= main_i 32) (<= main_n 45)) (or (< 45 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27323#(and (or (<= main_i 36) (<= main_n 45)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i))))} is VALID [2019-02-27 13:03:01,831 INFO L273 TraceCheckUtils]: 18: Hoare triple {27323#(and (or (<= main_i 36) (<= main_n 45)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i))))} assume i <= n * 4; {27323#(and (or (<= main_i 36) (<= main_n 45)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i))))} is VALID [2019-02-27 13:03:01,832 INFO L273 TraceCheckUtils]: 19: Hoare triple {27323#(and (or (<= main_i 36) (<= main_n 45)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i))))} assume a[i] != 23;i := i + 4; {27324#(and (or (< 45 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 40)))} is VALID [2019-02-27 13:03:01,833 INFO L273 TraceCheckUtils]: 20: Hoare triple {27324#(and (or (< 45 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 40)))} assume i <= n * 4; {27324#(and (or (< 45 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 40)))} is VALID [2019-02-27 13:03:01,834 INFO L273 TraceCheckUtils]: 21: Hoare triple {27324#(and (or (< 45 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 40)))} assume a[i] != 23;i := i + 4; {27325#(and (or (<= main_n 45) (<= main_i 44)) (or (< 45 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:03:01,834 INFO L273 TraceCheckUtils]: 22: Hoare triple {27325#(and (or (<= main_n 45) (<= main_i 44)) (or (< 45 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27325#(and (or (<= main_n 45) (<= main_i 44)) (or (< 45 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:03:01,835 INFO L273 TraceCheckUtils]: 23: Hoare triple {27325#(and (or (<= main_n 45) (<= main_i 44)) (or (< 45 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27326#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 48)))} is VALID [2019-02-27 13:03:01,836 INFO L273 TraceCheckUtils]: 24: Hoare triple {27326#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 48)))} assume i <= n * 4; {27326#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 48)))} is VALID [2019-02-27 13:03:01,837 INFO L273 TraceCheckUtils]: 25: Hoare triple {27326#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 48)))} assume a[i] != 23;i := i + 4; {27327#(and (or (< 45 main_n) (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 52) (<= main_n 45)))} is VALID [2019-02-27 13:03:01,838 INFO L273 TraceCheckUtils]: 26: Hoare triple {27327#(and (or (< 45 main_n) (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 52) (<= main_n 45)))} assume i <= n * 4; {27327#(and (or (< 45 main_n) (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 52) (<= main_n 45)))} is VALID [2019-02-27 13:03:01,839 INFO L273 TraceCheckUtils]: 27: Hoare triple {27327#(and (or (< 45 main_n) (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 52) (<= main_n 45)))} assume a[i] != 23;i := i + 4; {27328#(and (or (< 45 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 56)))} is VALID [2019-02-27 13:03:01,840 INFO L273 TraceCheckUtils]: 28: Hoare triple {27328#(and (or (< 45 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 56)))} assume i <= n * 4; {27328#(and (or (< 45 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 56)))} is VALID [2019-02-27 13:03:01,841 INFO L273 TraceCheckUtils]: 29: Hoare triple {27328#(and (or (< 45 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 56)))} assume a[i] != 23;i := i + 4; {27329#(and (or (<= main_n 45) (<= main_i 60)) (or (< 45 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:03:01,842 INFO L273 TraceCheckUtils]: 30: Hoare triple {27329#(and (or (<= main_n 45) (<= main_i 60)) (or (< 45 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27329#(and (or (<= main_n 45) (<= main_i 60)) (or (< 45 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:03:01,843 INFO L273 TraceCheckUtils]: 31: Hoare triple {27329#(and (or (<= main_n 45) (<= main_i 60)) (or (< 45 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27330#(and (or (<= main_n 45) (<= main_i 64)) (or (< 45 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:03:01,843 INFO L273 TraceCheckUtils]: 32: Hoare triple {27330#(and (or (<= main_n 45) (<= main_i 64)) (or (< 45 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27330#(and (or (<= main_n 45) (<= main_i 64)) (or (< 45 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:03:01,844 INFO L273 TraceCheckUtils]: 33: Hoare triple {27330#(and (or (<= main_n 45) (<= main_i 64)) (or (< 45 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27331#(and (or (< 45 main_n) (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 68)))} is VALID [2019-02-27 13:03:01,845 INFO L273 TraceCheckUtils]: 34: Hoare triple {27331#(and (or (< 45 main_n) (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 68)))} assume i <= n * 4; {27331#(and (or (< 45 main_n) (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 68)))} is VALID [2019-02-27 13:03:01,846 INFO L273 TraceCheckUtils]: 35: Hoare triple {27331#(and (or (< 45 main_n) (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 68)))} assume a[i] != 23;i := i + 4; {27332#(and (or (<= main_n 45) (<= main_i 72)) (or (< 45 main_n) (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:03:01,847 INFO L273 TraceCheckUtils]: 36: Hoare triple {27332#(and (or (<= main_n 45) (<= main_i 72)) (or (< 45 main_n) (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27332#(and (or (<= main_n 45) (<= main_i 72)) (or (< 45 main_n) (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:03:01,848 INFO L273 TraceCheckUtils]: 37: Hoare triple {27332#(and (or (<= main_n 45) (<= main_i 72)) (or (< 45 main_n) (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27333#(and (or (<= main_i 76) (<= main_n 45)) (or (< 45 main_n) (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:03:01,849 INFO L273 TraceCheckUtils]: 38: Hoare triple {27333#(and (or (<= main_i 76) (<= main_n 45)) (or (< 45 main_n) (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27333#(and (or (<= main_i 76) (<= main_n 45)) (or (< 45 main_n) (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:03:01,850 INFO L273 TraceCheckUtils]: 39: Hoare triple {27333#(and (or (<= main_i 76) (<= main_n 45)) (or (< 45 main_n) (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27334#(and (or (< 45 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 80)))} is VALID [2019-02-27 13:03:01,850 INFO L273 TraceCheckUtils]: 40: Hoare triple {27334#(and (or (< 45 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 80)))} assume i <= n * 4; {27334#(and (or (< 45 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 80)))} is VALID [2019-02-27 13:03:01,852 INFO L273 TraceCheckUtils]: 41: Hoare triple {27334#(and (or (< 45 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 80)))} assume a[i] != 23;i := i + 4; {27335#(and (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i))) (or (<= main_n 45) (<= main_i 84)))} is VALID [2019-02-27 13:03:01,852 INFO L273 TraceCheckUtils]: 42: Hoare triple {27335#(and (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i))) (or (<= main_n 45) (<= main_i 84)))} assume i <= n * 4; {27335#(and (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i))) (or (<= main_n 45) (<= main_i 84)))} is VALID [2019-02-27 13:03:01,853 INFO L273 TraceCheckUtils]: 43: Hoare triple {27335#(and (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i))) (or (<= main_n 45) (<= main_i 84)))} assume a[i] != 23;i := i + 4; {27336#(and (or (<= main_i 88) (<= main_n 45)) (or (< 45 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:03:01,854 INFO L273 TraceCheckUtils]: 44: Hoare triple {27336#(and (or (<= main_i 88) (<= main_n 45)) (or (< 45 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27336#(and (or (<= main_i 88) (<= main_n 45)) (or (< 45 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:03:01,855 INFO L273 TraceCheckUtils]: 45: Hoare triple {27336#(and (or (<= main_i 88) (<= main_n 45)) (or (< 45 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27337#(and (or (<= main_i 92) (<= main_n 45)) (or (< 45 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:03:01,856 INFO L273 TraceCheckUtils]: 46: Hoare triple {27337#(and (or (<= main_i 92) (<= main_n 45)) (or (< 45 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27337#(and (or (<= main_i 92) (<= main_n 45)) (or (< 45 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:03:01,857 INFO L273 TraceCheckUtils]: 47: Hoare triple {27337#(and (or (<= main_i 92) (<= main_n 45)) (or (< 45 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27338#(and (or (< 45 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 45)))} is VALID [2019-02-27 13:03:01,858 INFO L273 TraceCheckUtils]: 48: Hoare triple {27338#(and (or (< 45 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 45)))} assume i <= n * 4; {27338#(and (or (< 45 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 45)))} is VALID [2019-02-27 13:03:01,859 INFO L273 TraceCheckUtils]: 49: Hoare triple {27338#(and (or (< 45 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 45)))} assume a[i] != 23;i := i + 4; {27339#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 100)))} is VALID [2019-02-27 13:03:01,859 INFO L273 TraceCheckUtils]: 50: Hoare triple {27339#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 100)))} assume i <= n * 4; {27339#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 100)))} is VALID [2019-02-27 13:03:01,860 INFO L273 TraceCheckUtils]: 51: Hoare triple {27339#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 100)))} assume a[i] != 23;i := i + 4; {27340#(and (or (<= main_i 104) (<= main_n 45)) (or (< 45 main_n) (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:03:01,861 INFO L273 TraceCheckUtils]: 52: Hoare triple {27340#(and (or (<= main_i 104) (<= main_n 45)) (or (< 45 main_n) (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27340#(and (or (<= main_i 104) (<= main_n 45)) (or (< 45 main_n) (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:03:01,862 INFO L273 TraceCheckUtils]: 53: Hoare triple {27340#(and (or (<= main_i 104) (<= main_n 45)) (or (< 45 main_n) (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27341#(and (or (< 45 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 108)))} is VALID [2019-02-27 13:03:01,863 INFO L273 TraceCheckUtils]: 54: Hoare triple {27341#(and (or (< 45 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 108)))} assume i <= n * 4; {27341#(and (or (< 45 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 108)))} is VALID [2019-02-27 13:03:01,864 INFO L273 TraceCheckUtils]: 55: Hoare triple {27341#(and (or (< 45 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 108)))} assume a[i] != 23;i := i + 4; {27342#(and (or (<= main_n 45) (<= main_i 112)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} is VALID [2019-02-27 13:03:01,865 INFO L273 TraceCheckUtils]: 56: Hoare triple {27342#(and (or (<= main_n 45) (<= main_i 112)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} assume i <= n * 4; {27342#(and (or (<= main_n 45) (<= main_i 112)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} is VALID [2019-02-27 13:03:01,866 INFO L273 TraceCheckUtils]: 57: Hoare triple {27342#(and (or (<= main_n 45) (<= main_i 112)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} assume a[i] != 23;i := i + 4; {27343#(and (or (< 45 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 116)))} is VALID [2019-02-27 13:03:01,867 INFO L273 TraceCheckUtils]: 58: Hoare triple {27343#(and (or (< 45 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 116)))} assume i <= n * 4; {27343#(and (or (< 45 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 116)))} is VALID [2019-02-27 13:03:01,868 INFO L273 TraceCheckUtils]: 59: Hoare triple {27343#(and (or (< 45 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 116)))} assume a[i] != 23;i := i + 4; {27344#(and (or (< 45 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 120)))} is VALID [2019-02-27 13:03:01,868 INFO L273 TraceCheckUtils]: 60: Hoare triple {27344#(and (or (< 45 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 120)))} assume i <= n * 4; {27344#(and (or (< 45 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 120)))} is VALID [2019-02-27 13:03:01,869 INFO L273 TraceCheckUtils]: 61: Hoare triple {27344#(and (or (< 45 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 120)))} assume a[i] != 23;i := i + 4; {27345#(and (or (< 45 main_n) (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 124)))} is VALID [2019-02-27 13:03:01,870 INFO L273 TraceCheckUtils]: 62: Hoare triple {27345#(and (or (< 45 main_n) (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 124)))} assume i <= n * 4; {27345#(and (or (< 45 main_n) (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 124)))} is VALID [2019-02-27 13:03:01,871 INFO L273 TraceCheckUtils]: 63: Hoare triple {27345#(and (or (< 45 main_n) (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 124)))} assume a[i] != 23;i := i + 4; {27346#(and (or (<= main_n 45) (<= main_i 128)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} is VALID [2019-02-27 13:03:01,872 INFO L273 TraceCheckUtils]: 64: Hoare triple {27346#(and (or (<= main_n 45) (<= main_i 128)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} assume i <= n * 4; {27346#(and (or (<= main_n 45) (<= main_i 128)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} is VALID [2019-02-27 13:03:01,873 INFO L273 TraceCheckUtils]: 65: Hoare triple {27346#(and (or (<= main_n 45) (<= main_i 128)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} assume a[i] != 23;i := i + 4; {27347#(and (or (< 45 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 132)))} is VALID [2019-02-27 13:03:01,874 INFO L273 TraceCheckUtils]: 66: Hoare triple {27347#(and (or (< 45 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 132)))} assume i <= n * 4; {27347#(and (or (< 45 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 132)))} is VALID [2019-02-27 13:03:01,875 INFO L273 TraceCheckUtils]: 67: Hoare triple {27347#(and (or (< 45 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 132)))} assume a[i] != 23;i := i + 4; {27348#(and (or (<= main_i 136) (<= main_n 45)) (or (< 45 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:03:01,875 INFO L273 TraceCheckUtils]: 68: Hoare triple {27348#(and (or (<= main_i 136) (<= main_n 45)) (or (< 45 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27348#(and (or (<= main_i 136) (<= main_n 45)) (or (< 45 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:03:01,877 INFO L273 TraceCheckUtils]: 69: Hoare triple {27348#(and (or (<= main_i 136) (<= main_n 45)) (or (< 45 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27349#(and (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 45) (<= main_i 140)))} is VALID [2019-02-27 13:03:01,877 INFO L273 TraceCheckUtils]: 70: Hoare triple {27349#(and (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 45) (<= main_i 140)))} assume i <= n * 4; {27349#(and (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 45) (<= main_i 140)))} is VALID [2019-02-27 13:03:01,878 INFO L273 TraceCheckUtils]: 71: Hoare triple {27349#(and (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 45) (<= main_i 140)))} assume a[i] != 23;i := i + 4; {27350#(and (or (<= main_n 45) (<= main_i 144)) (or (< 45 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:03:01,879 INFO L273 TraceCheckUtils]: 72: Hoare triple {27350#(and (or (<= main_n 45) (<= main_i 144)) (or (< 45 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27350#(and (or (<= main_n 45) (<= main_i 144)) (or (< 45 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:03:01,880 INFO L273 TraceCheckUtils]: 73: Hoare triple {27350#(and (or (<= main_n 45) (<= main_i 144)) (or (< 45 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27351#(and (or (<= main_n 45) (<= main_i 148)) (or (< 45 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:03:01,881 INFO L273 TraceCheckUtils]: 74: Hoare triple {27351#(and (or (<= main_n 45) (<= main_i 148)) (or (< 45 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27351#(and (or (<= main_n 45) (<= main_i 148)) (or (< 45 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:03:01,882 INFO L273 TraceCheckUtils]: 75: Hoare triple {27351#(and (or (<= main_n 45) (<= main_i 148)) (or (< 45 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27352#(and (or (< 45 main_n) (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 152)))} is VALID [2019-02-27 13:03:01,883 INFO L273 TraceCheckUtils]: 76: Hoare triple {27352#(and (or (< 45 main_n) (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 152)))} assume i <= n * 4; {27352#(and (or (< 45 main_n) (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 152)))} is VALID [2019-02-27 13:03:01,884 INFO L273 TraceCheckUtils]: 77: Hoare triple {27352#(and (or (< 45 main_n) (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 152)))} assume a[i] != 23;i := i + 4; {27353#(and (or (< 45 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 156)))} is VALID [2019-02-27 13:03:01,884 INFO L273 TraceCheckUtils]: 78: Hoare triple {27353#(and (or (< 45 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 156)))} assume i <= n * 4; {27353#(and (or (< 45 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 156)))} is VALID [2019-02-27 13:03:01,885 INFO L273 TraceCheckUtils]: 79: Hoare triple {27353#(and (or (< 45 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 156)))} assume a[i] != 23;i := i + 4; {27354#(and (or (< 45 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 160)))} is VALID [2019-02-27 13:03:01,886 INFO L273 TraceCheckUtils]: 80: Hoare triple {27354#(and (or (< 45 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 160)))} assume i <= n * 4; {27354#(and (or (< 45 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 160)))} is VALID [2019-02-27 13:03:01,887 INFO L273 TraceCheckUtils]: 81: Hoare triple {27354#(and (or (< 45 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 160)))} assume a[i] != 23;i := i + 4; {27355#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 164)))} is VALID [2019-02-27 13:03:01,888 INFO L273 TraceCheckUtils]: 82: Hoare triple {27355#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 164)))} assume i <= n * 4; {27355#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 164)))} is VALID [2019-02-27 13:03:01,894 INFO L273 TraceCheckUtils]: 83: Hoare triple {27355#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 164)))} assume a[i] != 23;i := i + 4; {27356#(and (or (< 45 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 168)))} is VALID [2019-02-27 13:03:01,894 INFO L273 TraceCheckUtils]: 84: Hoare triple {27356#(and (or (< 45 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 168)))} assume i <= n * 4; {27356#(and (or (< 45 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 168)))} is VALID [2019-02-27 13:03:01,895 INFO L273 TraceCheckUtils]: 85: Hoare triple {27356#(and (or (< 45 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 168)))} assume a[i] != 23;i := i + 4; {27357#(and (or (<= main_n 45) (<= main_i 172)) (or (< 45 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:03:01,895 INFO L273 TraceCheckUtils]: 86: Hoare triple {27357#(and (or (<= main_n 45) (<= main_i 172)) (or (< 45 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27357#(and (or (<= main_n 45) (<= main_i 172)) (or (< 45 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:03:01,896 INFO L273 TraceCheckUtils]: 87: Hoare triple {27357#(and (or (<= main_n 45) (<= main_i 172)) (or (< 45 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27358#(and (or (< 45 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 45)))} is VALID [2019-02-27 13:03:01,897 INFO L273 TraceCheckUtils]: 88: Hoare triple {27358#(and (or (< 45 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 45)))} assume i <= n * 4; {27358#(and (or (< 45 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 45)))} is VALID [2019-02-27 13:03:01,898 INFO L273 TraceCheckUtils]: 89: Hoare triple {27358#(and (or (< 45 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 45)))} assume a[i] != 23;i := i + 4; {27359#(and (or (<= main_n 45) (<= main_i 180)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 45 main_n)))} is VALID [2019-02-27 13:03:01,899 INFO L273 TraceCheckUtils]: 90: Hoare triple {27359#(and (or (<= main_n 45) (<= main_i 180)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 45 main_n)))} assume i <= n * 4; {27360#(and (or (< 45 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 180))} is VALID [2019-02-27 13:03:01,900 INFO L273 TraceCheckUtils]: 91: Hoare triple {27360#(and (or (< 45 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 180))} assume a[i] != 23;i := i + 4; {27361#(and (<= main_i 184) (<= 46 main_n))} is VALID [2019-02-27 13:03:01,901 INFO L273 TraceCheckUtils]: 92: Hoare triple {27361#(and (<= main_i 184) (<= 46 main_n))} assume !(i <= n * 4); {27313#false} is VALID [2019-02-27 13:03:01,938 INFO L134 CoverageAnalysis]: Checked inductivity of 2070 backedges. 0 proven. 2070 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:03:01,938 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 13:03:01,938 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 13:03:01,938 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 13:03:01,939 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 13:03:01,939 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 13:03:01,939 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 13:03:01,949 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-27 13:03:01,949 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-27 13:03:01,974 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-27 13:03:01,974 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 13:03:01,976 WARN L254 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 97 conjunts are in the unsatisfiable core [2019-02-27 13:03:01,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:03:01,991 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 13:03:02,010 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 13:03:02,011 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 13:03:02,020 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 13:03:02,020 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 13:03:02,022 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 13:03:02,022 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_49]. (and (= main_a (store v_main_a_49 (* 4 main_n) 23)) (= main_i 0)) [2019-02-27 13:03:02,022 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 13:03:05,813 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 13:03:05,821 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 13:03:05,829 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 13:03:05,829 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 13:03:05,831 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 13:03:05,831 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 180 .cse0) (<= main_i 184) (not (= 23 (select main_a 180))) (= 23 (select main_a .cse0)))) [2019-02-27 13:03:05,831 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 180 .cse0) (<= main_i 184) (not (= 180 .cse0)))) [2019-02-27 13:03:05,889 INFO L273 TraceCheckUtils]: 0: Hoare triple {27312#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {27365#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,890 INFO L273 TraceCheckUtils]: 1: Hoare triple {27365#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27369#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 13:03:05,890 INFO L273 TraceCheckUtils]: 2: Hoare triple {27369#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {27369#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 13:03:05,891 INFO L273 TraceCheckUtils]: 3: Hoare triple {27369#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {27376#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,892 INFO L273 TraceCheckUtils]: 4: Hoare triple {27376#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27376#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,892 INFO L273 TraceCheckUtils]: 5: Hoare triple {27376#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27383#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 13:03:05,893 INFO L273 TraceCheckUtils]: 6: Hoare triple {27383#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {27383#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 13:03:05,894 INFO L273 TraceCheckUtils]: 7: Hoare triple {27383#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {27390#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,894 INFO L273 TraceCheckUtils]: 8: Hoare triple {27390#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27390#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,895 INFO L273 TraceCheckUtils]: 9: Hoare triple {27390#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27397#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,896 INFO L273 TraceCheckUtils]: 10: Hoare triple {27397#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27397#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,896 INFO L273 TraceCheckUtils]: 11: Hoare triple {27397#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27404#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,897 INFO L273 TraceCheckUtils]: 12: Hoare triple {27404#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27404#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,898 INFO L273 TraceCheckUtils]: 13: Hoare triple {27404#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27411#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,898 INFO L273 TraceCheckUtils]: 14: Hoare triple {27411#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27411#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,899 INFO L273 TraceCheckUtils]: 15: Hoare triple {27411#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27418#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,900 INFO L273 TraceCheckUtils]: 16: Hoare triple {27418#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27418#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,900 INFO L273 TraceCheckUtils]: 17: Hoare triple {27418#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27425#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,901 INFO L273 TraceCheckUtils]: 18: Hoare triple {27425#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27425#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,902 INFO L273 TraceCheckUtils]: 19: Hoare triple {27425#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27432#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,903 INFO L273 TraceCheckUtils]: 20: Hoare triple {27432#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27432#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,903 INFO L273 TraceCheckUtils]: 21: Hoare triple {27432#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27439#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,904 INFO L273 TraceCheckUtils]: 22: Hoare triple {27439#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27439#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,905 INFO L273 TraceCheckUtils]: 23: Hoare triple {27439#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27446#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,905 INFO L273 TraceCheckUtils]: 24: Hoare triple {27446#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27446#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,906 INFO L273 TraceCheckUtils]: 25: Hoare triple {27446#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27453#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,907 INFO L273 TraceCheckUtils]: 26: Hoare triple {27453#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27453#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,908 INFO L273 TraceCheckUtils]: 27: Hoare triple {27453#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27460#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,908 INFO L273 TraceCheckUtils]: 28: Hoare triple {27460#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27460#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,909 INFO L273 TraceCheckUtils]: 29: Hoare triple {27460#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27467#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,910 INFO L273 TraceCheckUtils]: 30: Hoare triple {27467#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27467#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,910 INFO L273 TraceCheckUtils]: 31: Hoare triple {27467#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27474#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,911 INFO L273 TraceCheckUtils]: 32: Hoare triple {27474#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27474#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,912 INFO L273 TraceCheckUtils]: 33: Hoare triple {27474#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27481#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,913 INFO L273 TraceCheckUtils]: 34: Hoare triple {27481#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27481#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,913 INFO L273 TraceCheckUtils]: 35: Hoare triple {27481#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27488#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,914 INFO L273 TraceCheckUtils]: 36: Hoare triple {27488#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27488#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,915 INFO L273 TraceCheckUtils]: 37: Hoare triple {27488#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27495#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,915 INFO L273 TraceCheckUtils]: 38: Hoare triple {27495#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27495#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,916 INFO L273 TraceCheckUtils]: 39: Hoare triple {27495#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27502#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 13:03:05,917 INFO L273 TraceCheckUtils]: 40: Hoare triple {27502#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {27502#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 13:03:05,918 INFO L273 TraceCheckUtils]: 41: Hoare triple {27502#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {27509#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,918 INFO L273 TraceCheckUtils]: 42: Hoare triple {27509#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27509#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,919 INFO L273 TraceCheckUtils]: 43: Hoare triple {27509#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27516#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,920 INFO L273 TraceCheckUtils]: 44: Hoare triple {27516#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27516#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,921 INFO L273 TraceCheckUtils]: 45: Hoare triple {27516#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27523#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,921 INFO L273 TraceCheckUtils]: 46: Hoare triple {27523#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27523#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,922 INFO L273 TraceCheckUtils]: 47: Hoare triple {27523#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27530#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,923 INFO L273 TraceCheckUtils]: 48: Hoare triple {27530#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27530#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,923 INFO L273 TraceCheckUtils]: 49: Hoare triple {27530#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27537#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,924 INFO L273 TraceCheckUtils]: 50: Hoare triple {27537#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27537#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,925 INFO L273 TraceCheckUtils]: 51: Hoare triple {27537#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27544#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,926 INFO L273 TraceCheckUtils]: 52: Hoare triple {27544#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27544#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,926 INFO L273 TraceCheckUtils]: 53: Hoare triple {27544#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27551#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,927 INFO L273 TraceCheckUtils]: 54: Hoare triple {27551#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27551#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,928 INFO L273 TraceCheckUtils]: 55: Hoare triple {27551#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27558#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,928 INFO L273 TraceCheckUtils]: 56: Hoare triple {27558#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27558#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,929 INFO L273 TraceCheckUtils]: 57: Hoare triple {27558#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27565#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,930 INFO L273 TraceCheckUtils]: 58: Hoare triple {27565#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27565#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,931 INFO L273 TraceCheckUtils]: 59: Hoare triple {27565#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27572#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,931 INFO L273 TraceCheckUtils]: 60: Hoare triple {27572#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27572#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,932 INFO L273 TraceCheckUtils]: 61: Hoare triple {27572#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27579#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,933 INFO L273 TraceCheckUtils]: 62: Hoare triple {27579#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27579#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,934 INFO L273 TraceCheckUtils]: 63: Hoare triple {27579#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27586#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,934 INFO L273 TraceCheckUtils]: 64: Hoare triple {27586#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27586#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,935 INFO L273 TraceCheckUtils]: 65: Hoare triple {27586#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27593#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,936 INFO L273 TraceCheckUtils]: 66: Hoare triple {27593#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27593#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,936 INFO L273 TraceCheckUtils]: 67: Hoare triple {27593#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27600#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,937 INFO L273 TraceCheckUtils]: 68: Hoare triple {27600#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27600#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,938 INFO L273 TraceCheckUtils]: 69: Hoare triple {27600#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27607#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 13:03:05,939 INFO L273 TraceCheckUtils]: 70: Hoare triple {27607#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {27607#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 13:03:05,940 INFO L273 TraceCheckUtils]: 71: Hoare triple {27607#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {27614#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,940 INFO L273 TraceCheckUtils]: 72: Hoare triple {27614#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27614#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,941 INFO L273 TraceCheckUtils]: 73: Hoare triple {27614#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27621#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,942 INFO L273 TraceCheckUtils]: 74: Hoare triple {27621#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27621#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,942 INFO L273 TraceCheckUtils]: 75: Hoare triple {27621#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27628#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,943 INFO L273 TraceCheckUtils]: 76: Hoare triple {27628#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27628#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,944 INFO L273 TraceCheckUtils]: 77: Hoare triple {27628#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27635#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,945 INFO L273 TraceCheckUtils]: 78: Hoare triple {27635#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27635#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,945 INFO L273 TraceCheckUtils]: 79: Hoare triple {27635#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27642#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,946 INFO L273 TraceCheckUtils]: 80: Hoare triple {27642#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27642#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,947 INFO L273 TraceCheckUtils]: 81: Hoare triple {27642#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27649#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-02-27 13:03:05,947 INFO L273 TraceCheckUtils]: 82: Hoare triple {27649#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {27649#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-02-27 13:03:05,948 INFO L273 TraceCheckUtils]: 83: Hoare triple {27649#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {27656#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,949 INFO L273 TraceCheckUtils]: 84: Hoare triple {27656#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27656#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,950 INFO L273 TraceCheckUtils]: 85: Hoare triple {27656#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27663#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,950 INFO L273 TraceCheckUtils]: 86: Hoare triple {27663#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27663#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,951 INFO L273 TraceCheckUtils]: 87: Hoare triple {27663#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27670#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,952 INFO L273 TraceCheckUtils]: 88: Hoare triple {27670#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27670#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,952 INFO L273 TraceCheckUtils]: 89: Hoare triple {27670#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27677#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,953 INFO L273 TraceCheckUtils]: 90: Hoare triple {27677#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27681#(and (= main_i 180) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:05,954 INFO L273 TraceCheckUtils]: 91: Hoare triple {27681#(and (= main_i 180) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27361#(and (<= main_i 184) (<= 46 main_n))} is VALID [2019-02-27 13:03:05,955 INFO L273 TraceCheckUtils]: 92: Hoare triple {27361#(and (<= main_i 184) (<= 46 main_n))} assume !(i <= n * 4); {27313#false} is VALID [2019-02-27 13:03:05,975 INFO L134 CoverageAnalysis]: Checked inductivity of 2070 backedges. 0 proven. 2070 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:03:05,975 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 13:03:12,081 INFO L273 TraceCheckUtils]: 92: Hoare triple {27688#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {27313#false} is VALID [2019-02-27 13:03:12,081 INFO L273 TraceCheckUtils]: 91: Hoare triple {27692#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {27688#(<= main_i (* 4 main_n))} is VALID [2019-02-27 13:03:12,082 INFO L273 TraceCheckUtils]: 90: Hoare triple {27696#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {27692#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:03:12,082 INFO L273 TraceCheckUtils]: 89: Hoare triple {27700#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {27696#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:03:12,083 INFO L273 TraceCheckUtils]: 88: Hoare triple {27700#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {27700#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:03:12,084 INFO L273 TraceCheckUtils]: 87: Hoare triple {27707#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {27700#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:03:12,084 INFO L273 TraceCheckUtils]: 86: Hoare triple {27707#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {27707#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:03:12,086 INFO L273 TraceCheckUtils]: 85: Hoare triple {27714#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {27707#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:03:12,086 INFO L273 TraceCheckUtils]: 84: Hoare triple {27714#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {27714#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:03:12,087 INFO L273 TraceCheckUtils]: 83: Hoare triple {27721#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {27714#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:03:12,088 INFO L273 TraceCheckUtils]: 82: Hoare triple {27721#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {27721#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:03:12,089 INFO L273 TraceCheckUtils]: 81: Hoare triple {27728#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27721#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:03:12,089 INFO L273 TraceCheckUtils]: 80: Hoare triple {27728#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {27728#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:03:12,091 INFO L273 TraceCheckUtils]: 79: Hoare triple {27735#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {27728#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:03:12,091 INFO L273 TraceCheckUtils]: 78: Hoare triple {27735#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {27735#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:03:12,092 INFO L273 TraceCheckUtils]: 77: Hoare triple {27742#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27735#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:03:12,093 INFO L273 TraceCheckUtils]: 76: Hoare triple {27742#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {27742#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:03:12,094 INFO L273 TraceCheckUtils]: 75: Hoare triple {27749#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27742#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:03:12,094 INFO L273 TraceCheckUtils]: 74: Hoare triple {27749#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {27749#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:03:12,096 INFO L273 TraceCheckUtils]: 73: Hoare triple {27756#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27749#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:03:12,096 INFO L273 TraceCheckUtils]: 72: Hoare triple {27756#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {27756#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:03:12,097 INFO L273 TraceCheckUtils]: 71: Hoare triple {27763#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {27756#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:03:12,098 INFO L273 TraceCheckUtils]: 70: Hoare triple {27763#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {27763#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:03:12,099 INFO L273 TraceCheckUtils]: 69: Hoare triple {27770#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27763#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:03:12,099 INFO L273 TraceCheckUtils]: 68: Hoare triple {27770#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {27770#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:03:12,101 INFO L273 TraceCheckUtils]: 67: Hoare triple {27777#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27770#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:03:12,101 INFO L273 TraceCheckUtils]: 66: Hoare triple {27777#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {27777#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:03:12,102 INFO L273 TraceCheckUtils]: 65: Hoare triple {27784#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {27777#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:03:12,103 INFO L273 TraceCheckUtils]: 64: Hoare triple {27784#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {27784#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:03:12,104 INFO L273 TraceCheckUtils]: 63: Hoare triple {27791#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27784#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:03:12,104 INFO L273 TraceCheckUtils]: 62: Hoare triple {27791#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {27791#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:03:12,106 INFO L273 TraceCheckUtils]: 61: Hoare triple {27798#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {27791#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:03:12,106 INFO L273 TraceCheckUtils]: 60: Hoare triple {27798#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {27798#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:03:12,107 INFO L273 TraceCheckUtils]: 59: Hoare triple {27805#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {27798#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:03:12,108 INFO L273 TraceCheckUtils]: 58: Hoare triple {27805#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {27805#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:03:12,109 INFO L273 TraceCheckUtils]: 57: Hoare triple {27812#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {27805#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:03:12,109 INFO L273 TraceCheckUtils]: 56: Hoare triple {27812#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {27812#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:03:12,110 INFO L273 TraceCheckUtils]: 55: Hoare triple {27819#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {27812#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:03:12,111 INFO L273 TraceCheckUtils]: 54: Hoare triple {27819#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {27819#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:03:12,112 INFO L273 TraceCheckUtils]: 53: Hoare triple {27826#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {27819#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:03:12,113 INFO L273 TraceCheckUtils]: 52: Hoare triple {27826#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {27826#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:03:12,114 INFO L273 TraceCheckUtils]: 51: Hoare triple {27833#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {27826#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:03:12,114 INFO L273 TraceCheckUtils]: 50: Hoare triple {27833#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {27833#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:03:12,115 INFO L273 TraceCheckUtils]: 49: Hoare triple {27840#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27833#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:03:12,116 INFO L273 TraceCheckUtils]: 48: Hoare triple {27840#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {27840#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:03:12,117 INFO L273 TraceCheckUtils]: 47: Hoare triple {27847#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27840#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:03:12,117 INFO L273 TraceCheckUtils]: 46: Hoare triple {27847#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {27847#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:03:12,118 INFO L273 TraceCheckUtils]: 45: Hoare triple {27854#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27847#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:03:12,119 INFO L273 TraceCheckUtils]: 44: Hoare triple {27854#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {27854#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:03:12,120 INFO L273 TraceCheckUtils]: 43: Hoare triple {27861#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {27854#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:03:12,120 INFO L273 TraceCheckUtils]: 42: Hoare triple {27861#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {27861#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:03:12,121 INFO L273 TraceCheckUtils]: 41: Hoare triple {27868#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27861#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:03:12,122 INFO L273 TraceCheckUtils]: 40: Hoare triple {27868#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {27868#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:03:12,123 INFO L273 TraceCheckUtils]: 39: Hoare triple {27875#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {27868#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:03:12,124 INFO L273 TraceCheckUtils]: 38: Hoare triple {27875#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {27875#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:03:12,125 INFO L273 TraceCheckUtils]: 37: Hoare triple {27882#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {27875#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:03:12,125 INFO L273 TraceCheckUtils]: 36: Hoare triple {27882#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {27882#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:03:12,126 INFO L273 TraceCheckUtils]: 35: Hoare triple {27889#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {27882#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:03:12,127 INFO L273 TraceCheckUtils]: 34: Hoare triple {27889#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {27889#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:03:12,128 INFO L273 TraceCheckUtils]: 33: Hoare triple {27896#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27889#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:03:12,129 INFO L273 TraceCheckUtils]: 32: Hoare triple {27896#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {27896#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:03:12,130 INFO L273 TraceCheckUtils]: 31: Hoare triple {27903#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27896#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:03:12,130 INFO L273 TraceCheckUtils]: 30: Hoare triple {27903#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {27903#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:03:12,131 INFO L273 TraceCheckUtils]: 29: Hoare triple {27910#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {27903#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:03:12,132 INFO L273 TraceCheckUtils]: 28: Hoare triple {27910#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {27910#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:03:12,133 INFO L273 TraceCheckUtils]: 27: Hoare triple {27917#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27910#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:03:12,133 INFO L273 TraceCheckUtils]: 26: Hoare triple {27917#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {27917#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:03:12,135 INFO L273 TraceCheckUtils]: 25: Hoare triple {27924#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {27917#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:03:12,135 INFO L273 TraceCheckUtils]: 24: Hoare triple {27924#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {27924#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:03:12,136 INFO L273 TraceCheckUtils]: 23: Hoare triple {27931#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {27924#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:03:12,137 INFO L273 TraceCheckUtils]: 22: Hoare triple {27931#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {27931#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:03:12,138 INFO L273 TraceCheckUtils]: 21: Hoare triple {27938#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {27931#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:03:12,138 INFO L273 TraceCheckUtils]: 20: Hoare triple {27938#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {27938#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:03:12,139 INFO L273 TraceCheckUtils]: 19: Hoare triple {27945#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {27938#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:03:12,140 INFO L273 TraceCheckUtils]: 18: Hoare triple {27945#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {27945#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:03:12,141 INFO L273 TraceCheckUtils]: 17: Hoare triple {27952#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {27945#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:03:12,142 INFO L273 TraceCheckUtils]: 16: Hoare triple {27952#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {27952#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-02-27 13:03:12,143 INFO L273 TraceCheckUtils]: 15: Hoare triple {27959#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {27952#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-02-27 13:03:12,143 INFO L273 TraceCheckUtils]: 14: Hoare triple {27959#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {27959#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-02-27 13:03:12,144 INFO L273 TraceCheckUtils]: 13: Hoare triple {27966#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {27959#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-02-27 13:03:12,145 INFO L273 TraceCheckUtils]: 12: Hoare triple {27966#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {27966#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-02-27 13:03:12,146 INFO L273 TraceCheckUtils]: 11: Hoare triple {27973#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {27966#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-02-27 13:03:12,146 INFO L273 TraceCheckUtils]: 10: Hoare triple {27973#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {27973#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-02-27 13:03:12,147 INFO L273 TraceCheckUtils]: 9: Hoare triple {27980#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {27973#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-02-27 13:03:12,148 INFO L273 TraceCheckUtils]: 8: Hoare triple {27980#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {27980#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-02-27 13:03:12,149 INFO L273 TraceCheckUtils]: 7: Hoare triple {27987#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27980#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-02-27 13:03:12,150 INFO L273 TraceCheckUtils]: 6: Hoare triple {27987#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume i <= n * 4; {27987#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-02-27 13:03:12,151 INFO L273 TraceCheckUtils]: 5: Hoare triple {27994#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27987#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-02-27 13:03:12,151 INFO L273 TraceCheckUtils]: 4: Hoare triple {27994#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume i <= n * 4; {27994#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-02-27 13:03:12,152 INFO L273 TraceCheckUtils]: 3: Hoare triple {28001#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume a[i] != 23;i := i + 4; {27994#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-02-27 13:03:12,153 INFO L273 TraceCheckUtils]: 2: Hoare triple {28001#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume i <= n * 4; {28001#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-02-27 13:03:12,154 INFO L273 TraceCheckUtils]: 1: Hoare triple {28008#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume a[i] != 23;i := i + 4; {28001#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-02-27 13:03:12,155 INFO L273 TraceCheckUtils]: 0: Hoare triple {27312#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {28008#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-02-27 13:03:12,186 INFO L134 CoverageAnalysis]: Checked inductivity of 2070 backedges. 0 proven. 2070 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:03:12,205 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 13:03:12,206 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 143 [2019-02-27 13:03:12,206 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 13:03:12,206 INFO L78 Accepts]: Start accepts. Automaton has 97 states. Word has length 93 [2019-02-27 13:03:12,206 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 13:03:12,206 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 97 states. [2019-02-27 13:03:12,433 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 185 edges. 185 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 13:03:12,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 97 states [2019-02-27 13:03:12,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2019-02-27 13:03:12,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2552, Invalid=18328, Unknown=0, NotChecked=0, Total=20880 [2019-02-27 13:03:12,435 INFO L87 Difference]: Start difference. First operand 94 states and 94 transitions. Second operand 97 states. [2019-02-27 13:03:27,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:03:27,520 INFO L93 Difference]: Finished difference Result 98 states and 98 transitions. [2019-02-27 13:03:27,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2019-02-27 13:03:27,521 INFO L78 Accepts]: Start accepts. Automaton has 97 states. Word has length 93 [2019-02-27 13:03:27,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 13:03:27,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-02-27 13:03:27,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 98 transitions. [2019-02-27 13:03:27,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-02-27 13:03:27,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 98 transitions. [2019-02-27 13:03:27,523 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 50 states and 98 transitions. [2019-02-27 13:03:27,630 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 98 edges. 98 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 13:03:27,631 INFO L225 Difference]: With dead ends: 98 [2019-02-27 13:03:27,631 INFO L226 Difference]: Without dead ends: 97 [2019-02-27 13:03:27,632 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4700 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=2552, Invalid=18328, Unknown=0, NotChecked=0, Total=20880 [2019-02-27 13:03:27,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-02-27 13:03:27,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 96. [2019-02-27 13:03:27,743 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 13:03:27,743 INFO L82 GeneralOperation]: Start isEquivalent. First operand 97 states. Second operand 96 states. [2019-02-27 13:03:27,743 INFO L74 IsIncluded]: Start isIncluded. First operand 97 states. Second operand 96 states. [2019-02-27 13:03:27,743 INFO L87 Difference]: Start difference. First operand 97 states. Second operand 96 states. [2019-02-27 13:03:27,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:03:27,745 INFO L93 Difference]: Finished difference Result 97 states and 97 transitions. [2019-02-27 13:03:27,745 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 97 transitions. [2019-02-27 13:03:27,745 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 13:03:27,745 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 13:03:27,746 INFO L74 IsIncluded]: Start isIncluded. First operand 96 states. Second operand 97 states. [2019-02-27 13:03:27,746 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 97 states. [2019-02-27 13:03:27,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:03:27,746 INFO L93 Difference]: Finished difference Result 97 states and 97 transitions. [2019-02-27 13:03:27,747 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 97 transitions. [2019-02-27 13:03:27,747 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 13:03:27,747 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 13:03:27,747 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 13:03:27,747 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 13:03:27,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2019-02-27 13:03:27,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 96 transitions. [2019-02-27 13:03:27,748 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 96 transitions. Word has length 93 [2019-02-27 13:03:27,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 13:03:27,748 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 96 transitions. [2019-02-27 13:03:27,748 INFO L481 AbstractCegarLoop]: Interpolant automaton has 97 states. [2019-02-27 13:03:27,748 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 96 transitions. [2019-02-27 13:03:27,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-02-27 13:03:27,749 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 13:03:27,749 INFO L402 BasicCegarLoop]: trace histogram [47, 46, 1, 1] [2019-02-27 13:03:27,749 INFO L423 AbstractCegarLoop]: === Iteration 47 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 13:03:27,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 13:03:27,749 INFO L82 PathProgramCache]: Analyzing trace with hash 592137020, now seen corresponding path program 46 times [2019-02-27 13:03:27,749 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 13:03:27,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 13:03:27,750 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 13:03:27,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 13:03:27,750 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 13:03:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:03:30,717 INFO L273 TraceCheckUtils]: 0: Hoare triple {28494#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {28496#(and (or (<= 0 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 0)))} is VALID [2019-02-27 13:03:30,718 INFO L273 TraceCheckUtils]: 1: Hoare triple {28496#(and (or (<= 0 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 0)))} assume a[i] != 23;i := i + 4; {28497#(and (or (<= main_n 46) (<= main_i 4)) (or (< 46 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,719 INFO L273 TraceCheckUtils]: 2: Hoare triple {28497#(and (or (<= main_n 46) (<= main_i 4)) (or (< 46 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28497#(and (or (<= main_n 46) (<= main_i 4)) (or (< 46 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,720 INFO L273 TraceCheckUtils]: 3: Hoare triple {28497#(and (or (<= main_n 46) (<= main_i 4)) (or (< 46 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28498#(and (or (<= 8 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 8)))} is VALID [2019-02-27 13:03:30,721 INFO L273 TraceCheckUtils]: 4: Hoare triple {28498#(and (or (<= 8 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 8)))} assume i <= n * 4; {28498#(and (or (<= 8 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 8)))} is VALID [2019-02-27 13:03:30,722 INFO L273 TraceCheckUtils]: 5: Hoare triple {28498#(and (or (<= 8 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 8)))} assume a[i] != 23;i := i + 4; {28499#(and (or (< 46 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 12)))} is VALID [2019-02-27 13:03:30,723 INFO L273 TraceCheckUtils]: 6: Hoare triple {28499#(and (or (< 46 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 12)))} assume i <= n * 4; {28499#(and (or (< 46 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 12)))} is VALID [2019-02-27 13:03:30,724 INFO L273 TraceCheckUtils]: 7: Hoare triple {28499#(and (or (< 46 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {28500#(and (or (<= main_n 46) (<= main_i 16)) (or (< 46 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,725 INFO L273 TraceCheckUtils]: 8: Hoare triple {28500#(and (or (<= main_n 46) (<= main_i 16)) (or (< 46 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28500#(and (or (<= main_n 46) (<= main_i 16)) (or (< 46 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,726 INFO L273 TraceCheckUtils]: 9: Hoare triple {28500#(and (or (<= main_n 46) (<= main_i 16)) (or (< 46 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28501#(and (or (<= main_n 46) (<= main_i 20)) (or (< 46 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,727 INFO L273 TraceCheckUtils]: 10: Hoare triple {28501#(and (or (<= main_n 46) (<= main_i 20)) (or (< 46 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28501#(and (or (<= main_n 46) (<= main_i 20)) (or (< 46 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,728 INFO L273 TraceCheckUtils]: 11: Hoare triple {28501#(and (or (<= main_n 46) (<= main_i 20)) (or (< 46 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28502#(and (or (<= main_n 46) (<= main_i 24)) (or (< 46 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,728 INFO L273 TraceCheckUtils]: 12: Hoare triple {28502#(and (or (<= main_n 46) (<= main_i 24)) (or (< 46 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28502#(and (or (<= main_n 46) (<= main_i 24)) (or (< 46 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,730 INFO L273 TraceCheckUtils]: 13: Hoare triple {28502#(and (or (<= main_n 46) (<= main_i 24)) (or (< 46 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28503#(and (or (<= 28 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,730 INFO L273 TraceCheckUtils]: 14: Hoare triple {28503#(and (or (<= 28 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28503#(and (or (<= 28 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,731 INFO L273 TraceCheckUtils]: 15: Hoare triple {28503#(and (or (<= 28 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28504#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 32) (<= main_n 46)) (or (<= 32 main_i) (< 46 main_n)))} is VALID [2019-02-27 13:03:30,732 INFO L273 TraceCheckUtils]: 16: Hoare triple {28504#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 32) (<= main_n 46)) (or (<= 32 main_i) (< 46 main_n)))} assume i <= n * 4; {28504#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 32) (<= main_n 46)) (or (<= 32 main_i) (< 46 main_n)))} is VALID [2019-02-27 13:03:30,733 INFO L273 TraceCheckUtils]: 17: Hoare triple {28504#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 32) (<= main_n 46)) (or (<= 32 main_i) (< 46 main_n)))} assume a[i] != 23;i := i + 4; {28505#(and (or (< 46 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 46)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,734 INFO L273 TraceCheckUtils]: 18: Hoare triple {28505#(and (or (< 46 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 46)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28505#(and (or (< 46 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 46)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,735 INFO L273 TraceCheckUtils]: 19: Hoare triple {28505#(and (or (< 46 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 46)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28506#(and (or (<= main_n 46) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 46 main_n)))} is VALID [2019-02-27 13:03:30,736 INFO L273 TraceCheckUtils]: 20: Hoare triple {28506#(and (or (<= main_n 46) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 46 main_n)))} assume i <= n * 4; {28506#(and (or (<= main_n 46) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 46 main_n)))} is VALID [2019-02-27 13:03:30,737 INFO L273 TraceCheckUtils]: 21: Hoare triple {28506#(and (or (<= main_n 46) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 46 main_n)))} assume a[i] != 23;i := i + 4; {28507#(and (or (<= 44 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,738 INFO L273 TraceCheckUtils]: 22: Hoare triple {28507#(and (or (<= 44 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28507#(and (or (<= 44 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,739 INFO L273 TraceCheckUtils]: 23: Hoare triple {28507#(and (or (<= 44 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28508#(and (or (<= main_n 46) (<= main_i 48)) (or (<= 48 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,739 INFO L273 TraceCheckUtils]: 24: Hoare triple {28508#(and (or (<= main_n 46) (<= main_i 48)) (or (<= 48 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28508#(and (or (<= main_n 46) (<= main_i 48)) (or (<= 48 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,740 INFO L273 TraceCheckUtils]: 25: Hoare triple {28508#(and (or (<= main_n 46) (<= main_i 48)) (or (<= 48 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28509#(and (or (< 46 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 52)))} is VALID [2019-02-27 13:03:30,741 INFO L273 TraceCheckUtils]: 26: Hoare triple {28509#(and (or (< 46 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 52)))} assume i <= n * 4; {28509#(and (or (< 46 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 52)))} is VALID [2019-02-27 13:03:30,742 INFO L273 TraceCheckUtils]: 27: Hoare triple {28509#(and (or (< 46 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 52)))} assume a[i] != 23;i := i + 4; {28510#(and (or (< 46 main_n) (<= 56 main_i)) (or (<= main_n 46) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,743 INFO L273 TraceCheckUtils]: 28: Hoare triple {28510#(and (or (< 46 main_n) (<= 56 main_i)) (or (<= main_n 46) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28510#(and (or (< 46 main_n) (<= 56 main_i)) (or (<= main_n 46) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,744 INFO L273 TraceCheckUtils]: 29: Hoare triple {28510#(and (or (< 46 main_n) (<= 56 main_i)) (or (<= main_n 46) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28511#(and (or (< 46 main_n) (<= 60 main_i)) (or (<= main_n 46) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,745 INFO L273 TraceCheckUtils]: 30: Hoare triple {28511#(and (or (< 46 main_n) (<= 60 main_i)) (or (<= main_n 46) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28511#(and (or (< 46 main_n) (<= 60 main_i)) (or (<= main_n 46) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,746 INFO L273 TraceCheckUtils]: 31: Hoare triple {28511#(and (or (< 46 main_n) (<= 60 main_i)) (or (<= main_n 46) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28512#(and (or (<= main_n 46) (<= main_i 64)) (or (<= 64 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,747 INFO L273 TraceCheckUtils]: 32: Hoare triple {28512#(and (or (<= main_n 46) (<= main_i 64)) (or (<= 64 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28512#(and (or (<= main_n 46) (<= main_i 64)) (or (<= 64 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,748 INFO L273 TraceCheckUtils]: 33: Hoare triple {28512#(and (or (<= main_n 46) (<= main_i 64)) (or (<= 64 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28513#(and (or (< 46 main_n) (<= 68 main_i)) (or (<= main_n 46) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,748 INFO L273 TraceCheckUtils]: 34: Hoare triple {28513#(and (or (< 46 main_n) (<= 68 main_i)) (or (<= main_n 46) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28513#(and (or (< 46 main_n) (<= 68 main_i)) (or (<= main_n 46) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,749 INFO L273 TraceCheckUtils]: 35: Hoare triple {28513#(and (or (< 46 main_n) (<= 68 main_i)) (or (<= main_n 46) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28514#(and (or (<= main_n 46) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))) (or (<= 72 main_i) (< 46 main_n)))} is VALID [2019-02-27 13:03:30,750 INFO L273 TraceCheckUtils]: 36: Hoare triple {28514#(and (or (<= main_n 46) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))) (or (<= 72 main_i) (< 46 main_n)))} assume i <= n * 4; {28514#(and (or (<= main_n 46) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))) (or (<= 72 main_i) (< 46 main_n)))} is VALID [2019-02-27 13:03:30,751 INFO L273 TraceCheckUtils]: 37: Hoare triple {28514#(and (or (<= main_n 46) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))) (or (<= 72 main_i) (< 46 main_n)))} assume a[i] != 23;i := i + 4; {28515#(and (or (<= 76 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 46)))} is VALID [2019-02-27 13:03:30,753 INFO L273 TraceCheckUtils]: 38: Hoare triple {28515#(and (or (<= 76 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 46)))} assume i <= n * 4; {28515#(and (or (<= 76 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 46)))} is VALID [2019-02-27 13:03:30,754 INFO L273 TraceCheckUtils]: 39: Hoare triple {28515#(and (or (<= 76 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 46)))} assume a[i] != 23;i := i + 4; {28516#(and (or (<= 80 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,755 INFO L273 TraceCheckUtils]: 40: Hoare triple {28516#(and (or (<= 80 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28516#(and (or (<= 80 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,756 INFO L273 TraceCheckUtils]: 41: Hoare triple {28516#(and (or (<= 80 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28517#(and (or (<= main_n 46) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 84 main_i)))} is VALID [2019-02-27 13:03:30,757 INFO L273 TraceCheckUtils]: 42: Hoare triple {28517#(and (or (<= main_n 46) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 84 main_i)))} assume i <= n * 4; {28517#(and (or (<= main_n 46) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 84 main_i)))} is VALID [2019-02-27 13:03:30,758 INFO L273 TraceCheckUtils]: 43: Hoare triple {28517#(and (or (<= main_n 46) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 84 main_i)))} assume a[i] != 23;i := i + 4; {28518#(and (or (< 46 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 88)))} is VALID [2019-02-27 13:03:30,759 INFO L273 TraceCheckUtils]: 44: Hoare triple {28518#(and (or (< 46 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 88)))} assume i <= n * 4; {28518#(and (or (< 46 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 88)))} is VALID [2019-02-27 13:03:30,760 INFO L273 TraceCheckUtils]: 45: Hoare triple {28518#(and (or (< 46 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 88)))} assume a[i] != 23;i := i + 4; {28519#(and (or (<= main_i 92) (<= main_n 46)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 92 main_i)))} is VALID [2019-02-27 13:03:30,760 INFO L273 TraceCheckUtils]: 46: Hoare triple {28519#(and (or (<= main_i 92) (<= main_n 46)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 92 main_i)))} assume i <= n * 4; {28519#(and (or (<= main_i 92) (<= main_n 46)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 92 main_i)))} is VALID [2019-02-27 13:03:30,762 INFO L273 TraceCheckUtils]: 47: Hoare triple {28519#(and (or (<= main_i 92) (<= main_n 46)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 92 main_i)))} assume a[i] != 23;i := i + 4; {28520#(and (or (<= main_i 96) (<= main_n 46)) (or (<= 96 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,762 INFO L273 TraceCheckUtils]: 48: Hoare triple {28520#(and (or (<= main_i 96) (<= main_n 46)) (or (<= 96 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28520#(and (or (<= main_i 96) (<= main_n 46)) (or (<= 96 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,763 INFO L273 TraceCheckUtils]: 49: Hoare triple {28520#(and (or (<= main_i 96) (<= main_n 46)) (or (<= 96 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28521#(and (or (<= 100 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,764 INFO L273 TraceCheckUtils]: 50: Hoare triple {28521#(and (or (<= 100 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28521#(and (or (<= 100 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,765 INFO L273 TraceCheckUtils]: 51: Hoare triple {28521#(and (or (<= 100 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28522#(and (or (<= 104 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 104) (<= main_n 46)))} is VALID [2019-02-27 13:03:30,766 INFO L273 TraceCheckUtils]: 52: Hoare triple {28522#(and (or (<= 104 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 104) (<= main_n 46)))} assume i <= n * 4; {28522#(and (or (<= 104 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 104) (<= main_n 46)))} is VALID [2019-02-27 13:03:30,767 INFO L273 TraceCheckUtils]: 53: Hoare triple {28522#(and (or (<= 104 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 104) (<= main_n 46)))} assume a[i] != 23;i := i + 4; {28523#(and (or (<= main_n 46) (<= main_i 108)) (or (<= 108 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,768 INFO L273 TraceCheckUtils]: 54: Hoare triple {28523#(and (or (<= main_n 46) (<= main_i 108)) (or (<= 108 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28523#(and (or (<= main_n 46) (<= main_i 108)) (or (<= 108 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,769 INFO L273 TraceCheckUtils]: 55: Hoare triple {28523#(and (or (<= main_n 46) (<= main_i 108)) (or (<= 108 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28524#(and (or (< 46 main_n) (<= 112 main_i)) (or (<= main_n 46) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,769 INFO L273 TraceCheckUtils]: 56: Hoare triple {28524#(and (or (< 46 main_n) (<= 112 main_i)) (or (<= main_n 46) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28524#(and (or (< 46 main_n) (<= 112 main_i)) (or (<= main_n 46) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,770 INFO L273 TraceCheckUtils]: 57: Hoare triple {28524#(and (or (< 46 main_n) (<= 112 main_i)) (or (<= main_n 46) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28525#(and (or (<= main_n 46) (<= main_i 116)) (or (<= 116 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,771 INFO L273 TraceCheckUtils]: 58: Hoare triple {28525#(and (or (<= main_n 46) (<= main_i 116)) (or (<= 116 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28525#(and (or (<= main_n 46) (<= main_i 116)) (or (<= 116 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,772 INFO L273 TraceCheckUtils]: 59: Hoare triple {28525#(and (or (<= main_n 46) (<= main_i 116)) (or (<= 116 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28526#(and (or (<= main_n 46) (<= main_i 120)) (or (<= 120 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,773 INFO L273 TraceCheckUtils]: 60: Hoare triple {28526#(and (or (<= main_n 46) (<= main_i 120)) (or (<= 120 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28526#(and (or (<= main_n 46) (<= main_i 120)) (or (<= 120 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,774 INFO L273 TraceCheckUtils]: 61: Hoare triple {28526#(and (or (<= main_n 46) (<= main_i 120)) (or (<= 120 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28527#(and (or (<= 124 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 124)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,775 INFO L273 TraceCheckUtils]: 62: Hoare triple {28527#(and (or (<= 124 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 124)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28527#(and (or (<= 124 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 124)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,776 INFO L273 TraceCheckUtils]: 63: Hoare triple {28527#(and (or (<= 124 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 124)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28528#(and (or (< 46 main_n) (<= 128 main_i)) (or (<= main_n 46) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,777 INFO L273 TraceCheckUtils]: 64: Hoare triple {28528#(and (or (< 46 main_n) (<= 128 main_i)) (or (<= main_n 46) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28528#(and (or (< 46 main_n) (<= 128 main_i)) (or (<= main_n 46) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,778 INFO L273 TraceCheckUtils]: 65: Hoare triple {28528#(and (or (< 46 main_n) (<= 128 main_i)) (or (<= main_n 46) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28529#(and (or (<= main_n 46) (<= main_i 132)) (or (<= 132 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,779 INFO L273 TraceCheckUtils]: 66: Hoare triple {28529#(and (or (<= main_n 46) (<= main_i 132)) (or (<= 132 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28529#(and (or (<= main_n 46) (<= main_i 132)) (or (<= 132 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,780 INFO L273 TraceCheckUtils]: 67: Hoare triple {28529#(and (or (<= main_n 46) (<= main_i 132)) (or (<= 132 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28530#(and (or (<= main_n 46) (<= main_i 136)) (or (<= 136 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,781 INFO L273 TraceCheckUtils]: 68: Hoare triple {28530#(and (or (<= main_n 46) (<= main_i 136)) (or (<= 136 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28530#(and (or (<= main_n 46) (<= main_i 136)) (or (<= 136 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,782 INFO L273 TraceCheckUtils]: 69: Hoare triple {28530#(and (or (<= main_n 46) (<= main_i 136)) (or (<= 136 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28531#(and (or (<= main_n 46) (<= main_i 140)) (or (< 46 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,782 INFO L273 TraceCheckUtils]: 70: Hoare triple {28531#(and (or (<= main_n 46) (<= main_i 140)) (or (< 46 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28531#(and (or (<= main_n 46) (<= main_i 140)) (or (< 46 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,783 INFO L273 TraceCheckUtils]: 71: Hoare triple {28531#(and (or (<= main_n 46) (<= main_i 140)) (or (< 46 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28532#(and (or (<= 144 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,784 INFO L273 TraceCheckUtils]: 72: Hoare triple {28532#(and (or (<= 144 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28532#(and (or (<= 144 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,785 INFO L273 TraceCheckUtils]: 73: Hoare triple {28532#(and (or (<= 144 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28533#(and (or (<= main_n 46) (<= main_i 148)) (or (< 46 main_n) (<= 148 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,786 INFO L273 TraceCheckUtils]: 74: Hoare triple {28533#(and (or (<= main_n 46) (<= main_i 148)) (or (< 46 main_n) (<= 148 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28533#(and (or (<= main_n 46) (<= main_i 148)) (or (< 46 main_n) (<= 148 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,787 INFO L273 TraceCheckUtils]: 75: Hoare triple {28533#(and (or (<= main_n 46) (<= main_i 148)) (or (< 46 main_n) (<= 148 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28534#(and (or (<= main_n 46) (<= main_i 152)) (or (<= 152 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,788 INFO L273 TraceCheckUtils]: 76: Hoare triple {28534#(and (or (<= main_n 46) (<= main_i 152)) (or (<= 152 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28534#(and (or (<= main_n 46) (<= main_i 152)) (or (<= 152 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,789 INFO L273 TraceCheckUtils]: 77: Hoare triple {28534#(and (or (<= main_n 46) (<= main_i 152)) (or (<= 152 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28535#(and (or (<= 156 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,790 INFO L273 TraceCheckUtils]: 78: Hoare triple {28535#(and (or (<= 156 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28535#(and (or (<= 156 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,791 INFO L273 TraceCheckUtils]: 79: Hoare triple {28535#(and (or (<= 156 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28536#(and (or (<= main_n 46) (<= main_i 160)) (= 23 (select main_a (* 4 main_n))) (or (<= 160 main_i) (< 46 main_n)))} is VALID [2019-02-27 13:03:30,792 INFO L273 TraceCheckUtils]: 80: Hoare triple {28536#(and (or (<= main_n 46) (<= main_i 160)) (= 23 (select main_a (* 4 main_n))) (or (<= 160 main_i) (< 46 main_n)))} assume i <= n * 4; {28536#(and (or (<= main_n 46) (<= main_i 160)) (= 23 (select main_a (* 4 main_n))) (or (<= 160 main_i) (< 46 main_n)))} is VALID [2019-02-27 13:03:30,793 INFO L273 TraceCheckUtils]: 81: Hoare triple {28536#(and (or (<= main_n 46) (<= main_i 160)) (= 23 (select main_a (* 4 main_n))) (or (<= 160 main_i) (< 46 main_n)))} assume a[i] != 23;i := i + 4; {28537#(and (or (<= 164 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 164)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,794 INFO L273 TraceCheckUtils]: 82: Hoare triple {28537#(and (or (<= 164 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 164)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28537#(and (or (<= 164 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 164)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,795 INFO L273 TraceCheckUtils]: 83: Hoare triple {28537#(and (or (<= 164 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 164)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28538#(and (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 168)))} is VALID [2019-02-27 13:03:30,795 INFO L273 TraceCheckUtils]: 84: Hoare triple {28538#(and (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 168)))} assume i <= n * 4; {28538#(and (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 168)))} is VALID [2019-02-27 13:03:30,797 INFO L273 TraceCheckUtils]: 85: Hoare triple {28538#(and (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 168)))} assume a[i] != 23;i := i + 4; {28539#(and (or (<= main_n 46) (<= main_i 172)) (or (< 46 main_n) (<= 172 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,797 INFO L273 TraceCheckUtils]: 86: Hoare triple {28539#(and (or (<= main_n 46) (<= main_i 172)) (or (< 46 main_n) (<= 172 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28539#(and (or (<= main_n 46) (<= main_i 172)) (or (< 46 main_n) (<= 172 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:30,798 INFO L273 TraceCheckUtils]: 87: Hoare triple {28539#(and (or (<= main_n 46) (<= main_i 172)) (or (< 46 main_n) (<= 172 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28540#(and (or (<= main_n 46) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))) (or (<= 176 main_i) (< 46 main_n)))} is VALID [2019-02-27 13:03:30,799 INFO L273 TraceCheckUtils]: 88: Hoare triple {28540#(and (or (<= main_n 46) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))) (or (<= 176 main_i) (< 46 main_n)))} assume i <= n * 4; {28540#(and (or (<= main_n 46) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))) (or (<= 176 main_i) (< 46 main_n)))} is VALID [2019-02-27 13:03:30,800 INFO L273 TraceCheckUtils]: 89: Hoare triple {28540#(and (or (<= main_n 46) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))) (or (<= 176 main_i) (< 46 main_n)))} assume a[i] != 23;i := i + 4; {28541#(and (or (<= main_n 46) (<= main_i 180)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 180 main_i)))} is VALID [2019-02-27 13:03:30,801 INFO L273 TraceCheckUtils]: 90: Hoare triple {28541#(and (or (<= main_n 46) (<= main_i 180)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 180 main_i)))} assume i <= n * 4; {28541#(and (or (<= main_n 46) (<= main_i 180)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 180 main_i)))} is VALID [2019-02-27 13:03:30,802 INFO L273 TraceCheckUtils]: 91: Hoare triple {28541#(and (or (<= main_n 46) (<= main_i 180)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 180 main_i)))} assume a[i] != 23;i := i + 4; {28542#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 46) (<= main_i 184)) (or (<= (* 4 main_n) main_i) (< 46 main_n)))))} is VALID [2019-02-27 13:03:30,803 INFO L273 TraceCheckUtils]: 92: Hoare triple {28542#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 46) (<= main_i 184)) (or (<= (* 4 main_n) main_i) (< 46 main_n)))))} assume i <= n * 4; {28543#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 184) (< 46 main_n))))} is VALID [2019-02-27 13:03:30,804 INFO L273 TraceCheckUtils]: 93: Hoare triple {28543#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 184) (< 46 main_n))))} assume a[i] != 23;i := i + 4; {28544#(and (<= main_i 188) (< 46 main_n))} is VALID [2019-02-27 13:03:30,805 INFO L273 TraceCheckUtils]: 94: Hoare triple {28544#(and (<= main_i 188) (< 46 main_n))} assume !(i <= n * 4); {28495#false} is VALID [2019-02-27 13:03:30,843 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:03:30,843 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 13:03:30,843 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 13:03:30,843 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 13:03:30,843 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 13:03:30,843 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 13:03:30,843 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 13:03:30,852 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 13:03:30,852 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-27 13:03:30,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:03:30,882 WARN L254 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 99 conjunts are in the unsatisfiable core [2019-02-27 13:03:30,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:03:30,895 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 13:03:30,915 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 13:03:30,917 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 13:03:30,923 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 13:03:30,923 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 13:03:30,925 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 13:03:30,925 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_50]. (and (= (store v_main_a_50 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-27 13:03:30,925 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 13:03:34,419 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 13:03:34,421 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 13:03:34,427 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 13:03:34,427 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 13:03:34,430 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 13:03:34,430 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= (select main_a 184) 23)) (<= main_i 188) (<= 184 .cse0) (= 23 (select main_a .cse0)))) [2019-02-27 13:03:34,430 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 184 .cse0)) (<= main_i 188) (<= 184 .cse0))) [2019-02-27 13:03:34,491 INFO L273 TraceCheckUtils]: 0: Hoare triple {28494#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {28548#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,491 INFO L273 TraceCheckUtils]: 1: Hoare triple {28548#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28552#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 13:03:34,492 INFO L273 TraceCheckUtils]: 2: Hoare triple {28552#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {28552#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 13:03:34,492 INFO L273 TraceCheckUtils]: 3: Hoare triple {28552#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {28559#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,493 INFO L273 TraceCheckUtils]: 4: Hoare triple {28559#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28559#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,494 INFO L273 TraceCheckUtils]: 5: Hoare triple {28559#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28566#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 13:03:34,494 INFO L273 TraceCheckUtils]: 6: Hoare triple {28566#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {28566#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 13:03:34,495 INFO L273 TraceCheckUtils]: 7: Hoare triple {28566#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {28573#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,496 INFO L273 TraceCheckUtils]: 8: Hoare triple {28573#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28573#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,497 INFO L273 TraceCheckUtils]: 9: Hoare triple {28573#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28580#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,497 INFO L273 TraceCheckUtils]: 10: Hoare triple {28580#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28580#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,498 INFO L273 TraceCheckUtils]: 11: Hoare triple {28580#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28587#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,499 INFO L273 TraceCheckUtils]: 12: Hoare triple {28587#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28587#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,499 INFO L273 TraceCheckUtils]: 13: Hoare triple {28587#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28594#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,500 INFO L273 TraceCheckUtils]: 14: Hoare triple {28594#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28594#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,501 INFO L273 TraceCheckUtils]: 15: Hoare triple {28594#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28601#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,501 INFO L273 TraceCheckUtils]: 16: Hoare triple {28601#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28601#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,502 INFO L273 TraceCheckUtils]: 17: Hoare triple {28601#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28608#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,503 INFO L273 TraceCheckUtils]: 18: Hoare triple {28608#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28608#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,503 INFO L273 TraceCheckUtils]: 19: Hoare triple {28608#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28615#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,504 INFO L273 TraceCheckUtils]: 20: Hoare triple {28615#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28615#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,505 INFO L273 TraceCheckUtils]: 21: Hoare triple {28615#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28622#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,505 INFO L273 TraceCheckUtils]: 22: Hoare triple {28622#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28622#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,506 INFO L273 TraceCheckUtils]: 23: Hoare triple {28622#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28629#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,507 INFO L273 TraceCheckUtils]: 24: Hoare triple {28629#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28629#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,507 INFO L273 TraceCheckUtils]: 25: Hoare triple {28629#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28636#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,508 INFO L273 TraceCheckUtils]: 26: Hoare triple {28636#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28636#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,509 INFO L273 TraceCheckUtils]: 27: Hoare triple {28636#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28643#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,509 INFO L273 TraceCheckUtils]: 28: Hoare triple {28643#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28643#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,510 INFO L273 TraceCheckUtils]: 29: Hoare triple {28643#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28650#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,511 INFO L273 TraceCheckUtils]: 30: Hoare triple {28650#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28650#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,512 INFO L273 TraceCheckUtils]: 31: Hoare triple {28650#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28657#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,512 INFO L273 TraceCheckUtils]: 32: Hoare triple {28657#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28657#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,513 INFO L273 TraceCheckUtils]: 33: Hoare triple {28657#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28664#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,514 INFO L273 TraceCheckUtils]: 34: Hoare triple {28664#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28664#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,514 INFO L273 TraceCheckUtils]: 35: Hoare triple {28664#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28671#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,515 INFO L273 TraceCheckUtils]: 36: Hoare triple {28671#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28671#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,516 INFO L273 TraceCheckUtils]: 37: Hoare triple {28671#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28678#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,516 INFO L273 TraceCheckUtils]: 38: Hoare triple {28678#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28678#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,517 INFO L273 TraceCheckUtils]: 39: Hoare triple {28678#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28685#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 13:03:34,518 INFO L273 TraceCheckUtils]: 40: Hoare triple {28685#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {28685#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 13:03:34,518 INFO L273 TraceCheckUtils]: 41: Hoare triple {28685#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {28692#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,519 INFO L273 TraceCheckUtils]: 42: Hoare triple {28692#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28692#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,520 INFO L273 TraceCheckUtils]: 43: Hoare triple {28692#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28699#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,521 INFO L273 TraceCheckUtils]: 44: Hoare triple {28699#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28699#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,521 INFO L273 TraceCheckUtils]: 45: Hoare triple {28699#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28706#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,522 INFO L273 TraceCheckUtils]: 46: Hoare triple {28706#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28706#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,523 INFO L273 TraceCheckUtils]: 47: Hoare triple {28706#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28713#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,523 INFO L273 TraceCheckUtils]: 48: Hoare triple {28713#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28713#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,524 INFO L273 TraceCheckUtils]: 49: Hoare triple {28713#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28720#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,525 INFO L273 TraceCheckUtils]: 50: Hoare triple {28720#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28720#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,525 INFO L273 TraceCheckUtils]: 51: Hoare triple {28720#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28727#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,526 INFO L273 TraceCheckUtils]: 52: Hoare triple {28727#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28727#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,527 INFO L273 TraceCheckUtils]: 53: Hoare triple {28727#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28734#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,528 INFO L273 TraceCheckUtils]: 54: Hoare triple {28734#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28734#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,528 INFO L273 TraceCheckUtils]: 55: Hoare triple {28734#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28741#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,529 INFO L273 TraceCheckUtils]: 56: Hoare triple {28741#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28741#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,530 INFO L273 TraceCheckUtils]: 57: Hoare triple {28741#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28748#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,530 INFO L273 TraceCheckUtils]: 58: Hoare triple {28748#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28748#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,531 INFO L273 TraceCheckUtils]: 59: Hoare triple {28748#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28755#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,532 INFO L273 TraceCheckUtils]: 60: Hoare triple {28755#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28755#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,532 INFO L273 TraceCheckUtils]: 61: Hoare triple {28755#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28762#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,533 INFO L273 TraceCheckUtils]: 62: Hoare triple {28762#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28762#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,534 INFO L273 TraceCheckUtils]: 63: Hoare triple {28762#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28769#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,534 INFO L273 TraceCheckUtils]: 64: Hoare triple {28769#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28769#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,535 INFO L273 TraceCheckUtils]: 65: Hoare triple {28769#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28776#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,536 INFO L273 TraceCheckUtils]: 66: Hoare triple {28776#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28776#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,537 INFO L273 TraceCheckUtils]: 67: Hoare triple {28776#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28783#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,537 INFO L273 TraceCheckUtils]: 68: Hoare triple {28783#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28783#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,538 INFO L273 TraceCheckUtils]: 69: Hoare triple {28783#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28790#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 13:03:34,539 INFO L273 TraceCheckUtils]: 70: Hoare triple {28790#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {28790#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 13:03:34,539 INFO L273 TraceCheckUtils]: 71: Hoare triple {28790#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {28797#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,540 INFO L273 TraceCheckUtils]: 72: Hoare triple {28797#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28797#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,541 INFO L273 TraceCheckUtils]: 73: Hoare triple {28797#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28804#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,542 INFO L273 TraceCheckUtils]: 74: Hoare triple {28804#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28804#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,542 INFO L273 TraceCheckUtils]: 75: Hoare triple {28804#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28811#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,543 INFO L273 TraceCheckUtils]: 76: Hoare triple {28811#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28811#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,544 INFO L273 TraceCheckUtils]: 77: Hoare triple {28811#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28818#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,544 INFO L273 TraceCheckUtils]: 78: Hoare triple {28818#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28818#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,545 INFO L273 TraceCheckUtils]: 79: Hoare triple {28818#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28825#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,546 INFO L273 TraceCheckUtils]: 80: Hoare triple {28825#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28825#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,547 INFO L273 TraceCheckUtils]: 81: Hoare triple {28825#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28832#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-02-27 13:03:34,547 INFO L273 TraceCheckUtils]: 82: Hoare triple {28832#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {28832#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-02-27 13:03:34,548 INFO L273 TraceCheckUtils]: 83: Hoare triple {28832#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {28839#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,549 INFO L273 TraceCheckUtils]: 84: Hoare triple {28839#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28839#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,549 INFO L273 TraceCheckUtils]: 85: Hoare triple {28839#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28846#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,550 INFO L273 TraceCheckUtils]: 86: Hoare triple {28846#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28846#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,551 INFO L273 TraceCheckUtils]: 87: Hoare triple {28846#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28853#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,551 INFO L273 TraceCheckUtils]: 88: Hoare triple {28853#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28853#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,552 INFO L273 TraceCheckUtils]: 89: Hoare triple {28853#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28860#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,553 INFO L273 TraceCheckUtils]: 90: Hoare triple {28860#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28860#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,553 INFO L273 TraceCheckUtils]: 91: Hoare triple {28860#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28867#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,554 INFO L273 TraceCheckUtils]: 92: Hoare triple {28867#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28871#(and (= main_i 184) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:34,555 INFO L273 TraceCheckUtils]: 93: Hoare triple {28871#(and (= main_i 184) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28544#(and (<= main_i 188) (< 46 main_n))} is VALID [2019-02-27 13:03:34,556 INFO L273 TraceCheckUtils]: 94: Hoare triple {28544#(and (<= main_i 188) (< 46 main_n))} assume !(i <= n * 4); {28495#false} is VALID [2019-02-27 13:03:34,583 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:03:34,583 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 13:03:41,143 INFO L273 TraceCheckUtils]: 94: Hoare triple {28878#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {28495#false} is VALID [2019-02-27 13:03:41,144 INFO L273 TraceCheckUtils]: 93: Hoare triple {28882#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {28878#(<= main_i (* 4 main_n))} is VALID [2019-02-27 13:03:41,145 INFO L273 TraceCheckUtils]: 92: Hoare triple {28886#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {28882#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:03:41,145 INFO L273 TraceCheckUtils]: 91: Hoare triple {28890#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {28886#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:03:41,146 INFO L273 TraceCheckUtils]: 90: Hoare triple {28890#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {28890#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:03:41,146 INFO L273 TraceCheckUtils]: 89: Hoare triple {28897#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {28890#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:03:41,147 INFO L273 TraceCheckUtils]: 88: Hoare triple {28897#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {28897#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:03:41,148 INFO L273 TraceCheckUtils]: 87: Hoare triple {28904#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {28897#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:03:41,148 INFO L273 TraceCheckUtils]: 86: Hoare triple {28904#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {28904#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:03:41,149 INFO L273 TraceCheckUtils]: 85: Hoare triple {28911#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {28904#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:03:41,150 INFO L273 TraceCheckUtils]: 84: Hoare triple {28911#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {28911#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:03:41,151 INFO L273 TraceCheckUtils]: 83: Hoare triple {28918#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {28911#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:03:41,151 INFO L273 TraceCheckUtils]: 82: Hoare triple {28918#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {28918#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:03:41,153 INFO L273 TraceCheckUtils]: 81: Hoare triple {28925#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {28918#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:03:41,153 INFO L273 TraceCheckUtils]: 80: Hoare triple {28925#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {28925#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:03:41,154 INFO L273 TraceCheckUtils]: 79: Hoare triple {28932#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {28925#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:03:41,155 INFO L273 TraceCheckUtils]: 78: Hoare triple {28932#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {28932#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:03:41,156 INFO L273 TraceCheckUtils]: 77: Hoare triple {28939#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {28932#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:03:41,156 INFO L273 TraceCheckUtils]: 76: Hoare triple {28939#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {28939#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:03:41,157 INFO L273 TraceCheckUtils]: 75: Hoare triple {28946#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {28939#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:03:41,158 INFO L273 TraceCheckUtils]: 74: Hoare triple {28946#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {28946#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:03:41,159 INFO L273 TraceCheckUtils]: 73: Hoare triple {28953#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {28946#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:03:41,159 INFO L273 TraceCheckUtils]: 72: Hoare triple {28953#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {28953#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:03:41,160 INFO L273 TraceCheckUtils]: 71: Hoare triple {28960#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {28953#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:03:41,161 INFO L273 TraceCheckUtils]: 70: Hoare triple {28960#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {28960#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:03:41,162 INFO L273 TraceCheckUtils]: 69: Hoare triple {28967#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {28960#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:03:41,163 INFO L273 TraceCheckUtils]: 68: Hoare triple {28967#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {28967#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:03:41,164 INFO L273 TraceCheckUtils]: 67: Hoare triple {28974#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {28967#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:03:41,164 INFO L273 TraceCheckUtils]: 66: Hoare triple {28974#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {28974#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:03:41,165 INFO L273 TraceCheckUtils]: 65: Hoare triple {28981#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {28974#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:03:41,166 INFO L273 TraceCheckUtils]: 64: Hoare triple {28981#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {28981#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:03:41,167 INFO L273 TraceCheckUtils]: 63: Hoare triple {28988#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {28981#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:03:41,167 INFO L273 TraceCheckUtils]: 62: Hoare triple {28988#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {28988#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:03:41,168 INFO L273 TraceCheckUtils]: 61: Hoare triple {28995#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {28988#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:03:41,169 INFO L273 TraceCheckUtils]: 60: Hoare triple {28995#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {28995#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:03:41,170 INFO L273 TraceCheckUtils]: 59: Hoare triple {29002#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {28995#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:03:41,171 INFO L273 TraceCheckUtils]: 58: Hoare triple {29002#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {29002#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:03:41,172 INFO L273 TraceCheckUtils]: 57: Hoare triple {29009#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {29002#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:03:41,172 INFO L273 TraceCheckUtils]: 56: Hoare triple {29009#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {29009#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:03:41,173 INFO L273 TraceCheckUtils]: 55: Hoare triple {29016#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {29009#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:03:41,174 INFO L273 TraceCheckUtils]: 54: Hoare triple {29016#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {29016#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:03:41,175 INFO L273 TraceCheckUtils]: 53: Hoare triple {29023#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {29016#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:03:41,175 INFO L273 TraceCheckUtils]: 52: Hoare triple {29023#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {29023#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:03:41,176 INFO L273 TraceCheckUtils]: 51: Hoare triple {29030#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {29023#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:03:41,177 INFO L273 TraceCheckUtils]: 50: Hoare triple {29030#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {29030#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:03:41,178 INFO L273 TraceCheckUtils]: 49: Hoare triple {29037#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {29030#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:03:41,179 INFO L273 TraceCheckUtils]: 48: Hoare triple {29037#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {29037#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:03:41,180 INFO L273 TraceCheckUtils]: 47: Hoare triple {29044#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {29037#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:03:41,180 INFO L273 TraceCheckUtils]: 46: Hoare triple {29044#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {29044#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:03:41,181 INFO L273 TraceCheckUtils]: 45: Hoare triple {29051#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {29044#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:03:41,182 INFO L273 TraceCheckUtils]: 44: Hoare triple {29051#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {29051#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:03:41,183 INFO L273 TraceCheckUtils]: 43: Hoare triple {29058#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {29051#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:03:41,183 INFO L273 TraceCheckUtils]: 42: Hoare triple {29058#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {29058#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:03:41,185 INFO L273 TraceCheckUtils]: 41: Hoare triple {29065#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {29058#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:03:41,185 INFO L273 TraceCheckUtils]: 40: Hoare triple {29065#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {29065#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:03:41,186 INFO L273 TraceCheckUtils]: 39: Hoare triple {29072#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {29065#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:03:41,187 INFO L273 TraceCheckUtils]: 38: Hoare triple {29072#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {29072#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:03:41,188 INFO L273 TraceCheckUtils]: 37: Hoare triple {29079#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {29072#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:03:41,188 INFO L273 TraceCheckUtils]: 36: Hoare triple {29079#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {29079#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:03:41,190 INFO L273 TraceCheckUtils]: 35: Hoare triple {29086#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {29079#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:03:41,190 INFO L273 TraceCheckUtils]: 34: Hoare triple {29086#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {29086#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:03:41,191 INFO L273 TraceCheckUtils]: 33: Hoare triple {29093#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {29086#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:03:41,192 INFO L273 TraceCheckUtils]: 32: Hoare triple {29093#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {29093#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:03:41,193 INFO L273 TraceCheckUtils]: 31: Hoare triple {29100#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {29093#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:03:41,193 INFO L273 TraceCheckUtils]: 30: Hoare triple {29100#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {29100#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:03:41,195 INFO L273 TraceCheckUtils]: 29: Hoare triple {29107#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {29100#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:03:41,195 INFO L273 TraceCheckUtils]: 28: Hoare triple {29107#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {29107#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:03:41,196 INFO L273 TraceCheckUtils]: 27: Hoare triple {29114#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {29107#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:03:41,197 INFO L273 TraceCheckUtils]: 26: Hoare triple {29114#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {29114#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:03:41,198 INFO L273 TraceCheckUtils]: 25: Hoare triple {29121#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {29114#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:03:41,198 INFO L273 TraceCheckUtils]: 24: Hoare triple {29121#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {29121#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:03:41,199 INFO L273 TraceCheckUtils]: 23: Hoare triple {29128#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {29121#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:03:41,200 INFO L273 TraceCheckUtils]: 22: Hoare triple {29128#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {29128#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:03:41,201 INFO L273 TraceCheckUtils]: 21: Hoare triple {29135#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {29128#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:03:41,201 INFO L273 TraceCheckUtils]: 20: Hoare triple {29135#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {29135#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:03:41,203 INFO L273 TraceCheckUtils]: 19: Hoare triple {29142#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {29135#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:03:41,203 INFO L273 TraceCheckUtils]: 18: Hoare triple {29142#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {29142#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-02-27 13:03:41,204 INFO L273 TraceCheckUtils]: 17: Hoare triple {29149#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {29142#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-02-27 13:03:41,205 INFO L273 TraceCheckUtils]: 16: Hoare triple {29149#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {29149#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-02-27 13:03:41,206 INFO L273 TraceCheckUtils]: 15: Hoare triple {29156#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {29149#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-02-27 13:03:41,206 INFO L273 TraceCheckUtils]: 14: Hoare triple {29156#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {29156#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-02-27 13:03:41,207 INFO L273 TraceCheckUtils]: 13: Hoare triple {29163#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {29156#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-02-27 13:03:41,208 INFO L273 TraceCheckUtils]: 12: Hoare triple {29163#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {29163#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-02-27 13:03:41,209 INFO L273 TraceCheckUtils]: 11: Hoare triple {29170#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {29163#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-02-27 13:03:41,209 INFO L273 TraceCheckUtils]: 10: Hoare triple {29170#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {29170#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-02-27 13:03:41,210 INFO L273 TraceCheckUtils]: 9: Hoare triple {29177#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {29170#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-02-27 13:03:41,211 INFO L273 TraceCheckUtils]: 8: Hoare triple {29177#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume i <= n * 4; {29177#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-02-27 13:03:41,212 INFO L273 TraceCheckUtils]: 7: Hoare triple {29184#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {29177#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-02-27 13:03:41,212 INFO L273 TraceCheckUtils]: 6: Hoare triple {29184#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume i <= n * 4; {29184#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-02-27 13:03:41,213 INFO L273 TraceCheckUtils]: 5: Hoare triple {29191#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume a[i] != 23;i := i + 4; {29184#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-02-27 13:03:41,214 INFO L273 TraceCheckUtils]: 4: Hoare triple {29191#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume i <= n * 4; {29191#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-02-27 13:03:41,215 INFO L273 TraceCheckUtils]: 3: Hoare triple {29198#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume a[i] != 23;i := i + 4; {29191#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-02-27 13:03:41,215 INFO L273 TraceCheckUtils]: 2: Hoare triple {29198#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume i <= n * 4; {29198#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-02-27 13:03:41,216 INFO L273 TraceCheckUtils]: 1: Hoare triple {29205#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume a[i] != 23;i := i + 4; {29198#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-02-27 13:03:41,217 INFO L273 TraceCheckUtils]: 0: Hoare triple {28494#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {29205#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2019-02-27 13:03:41,255 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:03:41,273 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 13:03:41,274 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 146 [2019-02-27 13:03:41,274 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 13:03:41,274 INFO L78 Accepts]: Start accepts. Automaton has 99 states. Word has length 95 [2019-02-27 13:03:41,274 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 13:03:41,274 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 99 states. [2019-02-27 13:03:41,500 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 189 edges. 189 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 13:03:41,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 99 states [2019-02-27 13:03:41,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2019-02-27 13:03:41,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2654, Invalid=19102, Unknown=0, NotChecked=0, Total=21756 [2019-02-27 13:03:41,502 INFO L87 Difference]: Start difference. First operand 96 states and 96 transitions. Second operand 99 states. [2019-02-27 13:03:55,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:03:55,132 INFO L93 Difference]: Finished difference Result 100 states and 100 transitions. [2019-02-27 13:03:55,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2019-02-27 13:03:55,132 INFO L78 Accepts]: Start accepts. Automaton has 99 states. Word has length 95 [2019-02-27 13:03:55,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 13:03:55,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-02-27 13:03:55,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 100 transitions. [2019-02-27 13:03:55,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-02-27 13:03:55,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 100 transitions. [2019-02-27 13:03:55,134 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 51 states and 100 transitions. [2019-02-27 13:03:55,242 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 100 edges. 100 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 13:03:55,243 INFO L225 Difference]: With dead ends: 100 [2019-02-27 13:03:55,243 INFO L226 Difference]: Without dead ends: 99 [2019-02-27 13:03:55,244 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 90 SyntacticMatches, 1 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4896 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=2654, Invalid=19102, Unknown=0, NotChecked=0, Total=21756 [2019-02-27 13:03:55,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-02-27 13:03:55,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2019-02-27 13:03:55,411 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 13:03:55,411 INFO L82 GeneralOperation]: Start isEquivalent. First operand 99 states. Second operand 98 states. [2019-02-27 13:03:55,412 INFO L74 IsIncluded]: Start isIncluded. First operand 99 states. Second operand 98 states. [2019-02-27 13:03:55,412 INFO L87 Difference]: Start difference. First operand 99 states. Second operand 98 states. [2019-02-27 13:03:55,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:03:55,413 INFO L93 Difference]: Finished difference Result 99 states and 99 transitions. [2019-02-27 13:03:55,413 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 99 transitions. [2019-02-27 13:03:55,413 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 13:03:55,413 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 13:03:55,413 INFO L74 IsIncluded]: Start isIncluded. First operand 98 states. Second operand 99 states. [2019-02-27 13:03:55,413 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 99 states. [2019-02-27 13:03:55,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:03:55,414 INFO L93 Difference]: Finished difference Result 99 states and 99 transitions. [2019-02-27 13:03:55,414 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 99 transitions. [2019-02-27 13:03:55,414 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 13:03:55,414 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 13:03:55,414 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 13:03:55,415 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 13:03:55,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2019-02-27 13:03:55,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 98 transitions. [2019-02-27 13:03:55,416 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 98 transitions. Word has length 95 [2019-02-27 13:03:55,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 13:03:55,416 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 98 transitions. [2019-02-27 13:03:55,416 INFO L481 AbstractCegarLoop]: Interpolant automaton has 99 states. [2019-02-27 13:03:55,416 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 98 transitions. [2019-02-27 13:03:55,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-02-27 13:03:55,416 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 13:03:55,416 INFO L402 BasicCegarLoop]: trace histogram [48, 47, 1, 1] [2019-02-27 13:03:55,416 INFO L423 AbstractCegarLoop]: === Iteration 48 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 13:03:55,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 13:03:55,417 INFO L82 PathProgramCache]: Analyzing trace with hash 2107994238, now seen corresponding path program 47 times [2019-02-27 13:03:55,417 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 13:03:55,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 13:03:55,417 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 13:03:55,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 13:03:55,417 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 13:03:55,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:03:58,296 INFO L273 TraceCheckUtils]: 0: Hoare triple {29701#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {29703#(and (or (<= main_i 0) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (<= 0 main_i) (< 47 main_n)))} is VALID [2019-02-27 13:03:58,297 INFO L273 TraceCheckUtils]: 1: Hoare triple {29703#(and (or (<= main_i 0) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (<= 0 main_i) (< 47 main_n)))} assume a[i] != 23;i := i + 4; {29704#(and (or (<= main_i 4) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 4 main_i)))} is VALID [2019-02-27 13:03:58,298 INFO L273 TraceCheckUtils]: 2: Hoare triple {29704#(and (or (<= main_i 4) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 4 main_i)))} assume i <= n * 4; {29704#(and (or (<= main_i 4) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 4 main_i)))} is VALID [2019-02-27 13:03:58,299 INFO L273 TraceCheckUtils]: 3: Hoare triple {29704#(and (or (<= main_i 4) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 4 main_i)))} assume a[i] != 23;i := i + 4; {29705#(and (or (< 47 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,300 INFO L273 TraceCheckUtils]: 4: Hoare triple {29705#(and (or (< 47 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29705#(and (or (< 47 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,301 INFO L273 TraceCheckUtils]: 5: Hoare triple {29705#(and (or (< 47 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29706#(and (or (<= main_n 47) (<= main_i 12)) (or (< 47 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,302 INFO L273 TraceCheckUtils]: 6: Hoare triple {29706#(and (or (<= main_n 47) (<= main_i 12)) (or (< 47 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29706#(and (or (<= main_n 47) (<= main_i 12)) (or (< 47 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,303 INFO L273 TraceCheckUtils]: 7: Hoare triple {29706#(and (or (<= main_n 47) (<= main_i 12)) (or (< 47 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29707#(and (or (<= main_i 16) (<= main_n 47)) (or (< 47 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,303 INFO L273 TraceCheckUtils]: 8: Hoare triple {29707#(and (or (<= main_i 16) (<= main_n 47)) (or (< 47 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29707#(and (or (<= main_i 16) (<= main_n 47)) (or (< 47 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,305 INFO L273 TraceCheckUtils]: 9: Hoare triple {29707#(and (or (<= main_i 16) (<= main_n 47)) (or (< 47 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29708#(and (or (<= main_i 20) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 20 main_i)))} is VALID [2019-02-27 13:03:58,305 INFO L273 TraceCheckUtils]: 10: Hoare triple {29708#(and (or (<= main_i 20) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 20 main_i)))} assume i <= n * 4; {29708#(and (or (<= main_i 20) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 20 main_i)))} is VALID [2019-02-27 13:03:58,306 INFO L273 TraceCheckUtils]: 11: Hoare triple {29708#(and (or (<= main_i 20) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 20 main_i)))} assume a[i] != 23;i := i + 4; {29709#(and (or (<= main_i 24) (<= main_n 47)) (or (< 47 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,307 INFO L273 TraceCheckUtils]: 12: Hoare triple {29709#(and (or (<= main_i 24) (<= main_n 47)) (or (< 47 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29709#(and (or (<= main_i 24) (<= main_n 47)) (or (< 47 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,308 INFO L273 TraceCheckUtils]: 13: Hoare triple {29709#(and (or (<= main_i 24) (<= main_n 47)) (or (< 47 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29710#(and (or (<= main_n 47) (<= main_i 28)) (or (<= 28 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,309 INFO L273 TraceCheckUtils]: 14: Hoare triple {29710#(and (or (<= main_n 47) (<= main_i 28)) (or (<= 28 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29710#(and (or (<= main_n 47) (<= main_i 28)) (or (<= 28 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,310 INFO L273 TraceCheckUtils]: 15: Hoare triple {29710#(and (or (<= main_n 47) (<= main_i 28)) (or (<= 28 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29711#(and (or (<= 32 main_i) (< 47 main_n)) (or (<= main_i 32) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,311 INFO L273 TraceCheckUtils]: 16: Hoare triple {29711#(and (or (<= 32 main_i) (< 47 main_n)) (or (<= main_i 32) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29711#(and (or (<= 32 main_i) (< 47 main_n)) (or (<= main_i 32) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,312 INFO L273 TraceCheckUtils]: 17: Hoare triple {29711#(and (or (<= 32 main_i) (< 47 main_n)) (or (<= main_i 32) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29712#(and (or (<= main_i 36) (<= main_n 47)) (or (< 47 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,313 INFO L273 TraceCheckUtils]: 18: Hoare triple {29712#(and (or (<= main_i 36) (<= main_n 47)) (or (< 47 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29712#(and (or (<= main_i 36) (<= main_n 47)) (or (< 47 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,314 INFO L273 TraceCheckUtils]: 19: Hoare triple {29712#(and (or (<= main_i 36) (<= main_n 47)) (or (< 47 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29713#(and (or (<= 40 main_i) (< 47 main_n)) (or (<= main_i 40) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,315 INFO L273 TraceCheckUtils]: 20: Hoare triple {29713#(and (or (<= 40 main_i) (< 47 main_n)) (or (<= main_i 40) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29713#(and (or (<= 40 main_i) (< 47 main_n)) (or (<= main_i 40) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,316 INFO L273 TraceCheckUtils]: 21: Hoare triple {29713#(and (or (<= 40 main_i) (< 47 main_n)) (or (<= main_i 40) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29714#(and (or (<= main_n 47) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (<= 44 main_i) (< 47 main_n)))} is VALID [2019-02-27 13:03:58,316 INFO L273 TraceCheckUtils]: 22: Hoare triple {29714#(and (or (<= main_n 47) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (<= 44 main_i) (< 47 main_n)))} assume i <= n * 4; {29714#(and (or (<= main_n 47) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (<= 44 main_i) (< 47 main_n)))} is VALID [2019-02-27 13:03:58,318 INFO L273 TraceCheckUtils]: 23: Hoare triple {29714#(and (or (<= main_n 47) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (<= 44 main_i) (< 47 main_n)))} assume a[i] != 23;i := i + 4; {29715#(and (or (<= main_i 48) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 47 main_n)))} is VALID [2019-02-27 13:03:58,318 INFO L273 TraceCheckUtils]: 24: Hoare triple {29715#(and (or (<= main_i 48) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 47 main_n)))} assume i <= n * 4; {29715#(and (or (<= main_i 48) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 47 main_n)))} is VALID [2019-02-27 13:03:58,319 INFO L273 TraceCheckUtils]: 25: Hoare triple {29715#(and (or (<= main_i 48) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 47 main_n)))} assume a[i] != 23;i := i + 4; {29716#(and (or (< 47 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,320 INFO L273 TraceCheckUtils]: 26: Hoare triple {29716#(and (or (< 47 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29716#(and (or (< 47 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,321 INFO L273 TraceCheckUtils]: 27: Hoare triple {29716#(and (or (< 47 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29717#(and (or (<= main_i 56) (<= main_n 47)) (or (< 47 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,322 INFO L273 TraceCheckUtils]: 28: Hoare triple {29717#(and (or (<= main_i 56) (<= main_n 47)) (or (< 47 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29717#(and (or (<= main_i 56) (<= main_n 47)) (or (< 47 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,323 INFO L273 TraceCheckUtils]: 29: Hoare triple {29717#(and (or (<= main_i 56) (<= main_n 47)) (or (< 47 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29718#(and (or (< 47 main_n) (<= 60 main_i)) (or (<= main_i 60) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,324 INFO L273 TraceCheckUtils]: 30: Hoare triple {29718#(and (or (< 47 main_n) (<= 60 main_i)) (or (<= main_i 60) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29718#(and (or (< 47 main_n) (<= 60 main_i)) (or (<= main_i 60) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,325 INFO L273 TraceCheckUtils]: 31: Hoare triple {29718#(and (or (< 47 main_n) (<= 60 main_i)) (or (<= main_i 60) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29719#(and (or (<= 64 main_i) (< 47 main_n)) (or (<= main_i 64) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,326 INFO L273 TraceCheckUtils]: 32: Hoare triple {29719#(and (or (<= 64 main_i) (< 47 main_n)) (or (<= main_i 64) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29719#(and (or (<= 64 main_i) (< 47 main_n)) (or (<= main_i 64) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,327 INFO L273 TraceCheckUtils]: 33: Hoare triple {29719#(and (or (<= 64 main_i) (< 47 main_n)) (or (<= main_i 64) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29720#(and (or (< 47 main_n) (<= 68 main_i)) (or (<= main_n 47) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,328 INFO L273 TraceCheckUtils]: 34: Hoare triple {29720#(and (or (< 47 main_n) (<= 68 main_i)) (or (<= main_n 47) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29720#(and (or (< 47 main_n) (<= 68 main_i)) (or (<= main_n 47) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,329 INFO L273 TraceCheckUtils]: 35: Hoare triple {29720#(and (or (< 47 main_n) (<= 68 main_i)) (or (<= main_n 47) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29721#(and (or (<= 72 main_i) (< 47 main_n)) (or (<= main_i 72) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,329 INFO L273 TraceCheckUtils]: 36: Hoare triple {29721#(and (or (<= 72 main_i) (< 47 main_n)) (or (<= main_i 72) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29721#(and (or (<= 72 main_i) (< 47 main_n)) (or (<= main_i 72) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,331 INFO L273 TraceCheckUtils]: 37: Hoare triple {29721#(and (or (<= 72 main_i) (< 47 main_n)) (or (<= main_i 72) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29722#(and (or (<= main_i 76) (<= main_n 47)) (or (<= 76 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,331 INFO L273 TraceCheckUtils]: 38: Hoare triple {29722#(and (or (<= main_i 76) (<= main_n 47)) (or (<= 76 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29722#(and (or (<= main_i 76) (<= main_n 47)) (or (<= 76 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,332 INFO L273 TraceCheckUtils]: 39: Hoare triple {29722#(and (or (<= main_i 76) (<= main_n 47)) (or (<= 76 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29723#(and (or (< 47 main_n) (<= 80 main_i)) (or (<= main_n 47) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,333 INFO L273 TraceCheckUtils]: 40: Hoare triple {29723#(and (or (< 47 main_n) (<= 80 main_i)) (or (<= main_n 47) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29723#(and (or (< 47 main_n) (<= 80 main_i)) (or (<= main_n 47) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,334 INFO L273 TraceCheckUtils]: 41: Hoare triple {29723#(and (or (< 47 main_n) (<= 80 main_i)) (or (<= main_n 47) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29724#(and (or (< 47 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 47)))} is VALID [2019-02-27 13:03:58,335 INFO L273 TraceCheckUtils]: 42: Hoare triple {29724#(and (or (< 47 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 47)))} assume i <= n * 4; {29724#(and (or (< 47 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 47)))} is VALID [2019-02-27 13:03:58,336 INFO L273 TraceCheckUtils]: 43: Hoare triple {29724#(and (or (< 47 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 47)))} assume a[i] != 23;i := i + 4; {29725#(and (or (<= main_i 88) (<= main_n 47)) (or (< 47 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,337 INFO L273 TraceCheckUtils]: 44: Hoare triple {29725#(and (or (<= main_i 88) (<= main_n 47)) (or (< 47 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29725#(and (or (<= main_i 88) (<= main_n 47)) (or (< 47 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,338 INFO L273 TraceCheckUtils]: 45: Hoare triple {29725#(and (or (<= main_i 88) (<= main_n 47)) (or (< 47 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29726#(and (or (<= main_i 92) (<= main_n 47)) (or (< 47 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,338 INFO L273 TraceCheckUtils]: 46: Hoare triple {29726#(and (or (<= main_i 92) (<= main_n 47)) (or (< 47 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29726#(and (or (<= main_i 92) (<= main_n 47)) (or (< 47 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,339 INFO L273 TraceCheckUtils]: 47: Hoare triple {29726#(and (or (<= main_i 92) (<= main_n 47)) (or (< 47 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29727#(and (or (< 47 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 47)))} is VALID [2019-02-27 13:03:58,340 INFO L273 TraceCheckUtils]: 48: Hoare triple {29727#(and (or (< 47 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 47)))} assume i <= n * 4; {29727#(and (or (< 47 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 47)))} is VALID [2019-02-27 13:03:58,341 INFO L273 TraceCheckUtils]: 49: Hoare triple {29727#(and (or (< 47 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 47)))} assume a[i] != 23;i := i + 4; {29728#(and (or (<= main_i 100) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 100 main_i)))} is VALID [2019-02-27 13:03:58,342 INFO L273 TraceCheckUtils]: 50: Hoare triple {29728#(and (or (<= main_i 100) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 100 main_i)))} assume i <= n * 4; {29728#(and (or (<= main_i 100) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 100 main_i)))} is VALID [2019-02-27 13:03:58,343 INFO L273 TraceCheckUtils]: 51: Hoare triple {29728#(and (or (<= main_i 100) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 100 main_i)))} assume a[i] != 23;i := i + 4; {29729#(and (or (< 47 main_n) (<= 104 main_i)) (or (<= main_i 104) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,344 INFO L273 TraceCheckUtils]: 52: Hoare triple {29729#(and (or (< 47 main_n) (<= 104 main_i)) (or (<= main_i 104) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29729#(and (or (< 47 main_n) (<= 104 main_i)) (or (<= main_i 104) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,345 INFO L273 TraceCheckUtils]: 53: Hoare triple {29729#(and (or (< 47 main_n) (<= 104 main_i)) (or (<= main_i 104) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29730#(and (or (<= main_i 108) (<= main_n 47)) (or (< 47 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,346 INFO L273 TraceCheckUtils]: 54: Hoare triple {29730#(and (or (<= main_i 108) (<= main_n 47)) (or (< 47 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29730#(and (or (<= main_i 108) (<= main_n 47)) (or (< 47 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,347 INFO L273 TraceCheckUtils]: 55: Hoare triple {29730#(and (or (<= main_i 108) (<= main_n 47)) (or (< 47 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29731#(and (or (< 47 main_n) (<= 112 main_i)) (or (<= main_n 47) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,348 INFO L273 TraceCheckUtils]: 56: Hoare triple {29731#(and (or (< 47 main_n) (<= 112 main_i)) (or (<= main_n 47) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29731#(and (or (< 47 main_n) (<= 112 main_i)) (or (<= main_n 47) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,349 INFO L273 TraceCheckUtils]: 57: Hoare triple {29731#(and (or (< 47 main_n) (<= 112 main_i)) (or (<= main_n 47) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29732#(and (or (<= main_i 116) (<= main_n 47)) (or (<= 116 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,350 INFO L273 TraceCheckUtils]: 58: Hoare triple {29732#(and (or (<= main_i 116) (<= main_n 47)) (or (<= 116 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29732#(and (or (<= main_i 116) (<= main_n 47)) (or (<= 116 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,351 INFO L273 TraceCheckUtils]: 59: Hoare triple {29732#(and (or (<= main_i 116) (<= main_n 47)) (or (<= 116 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29733#(and (or (<= main_i 120) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (<= 120 main_i) (< 47 main_n)))} is VALID [2019-02-27 13:03:58,351 INFO L273 TraceCheckUtils]: 60: Hoare triple {29733#(and (or (<= main_i 120) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (<= 120 main_i) (< 47 main_n)))} assume i <= n * 4; {29733#(and (or (<= main_i 120) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (<= 120 main_i) (< 47 main_n)))} is VALID [2019-02-27 13:03:58,353 INFO L273 TraceCheckUtils]: 61: Hoare triple {29733#(and (or (<= main_i 120) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (<= 120 main_i) (< 47 main_n)))} assume a[i] != 23;i := i + 4; {29734#(and (or (<= main_i 124) (<= main_n 47)) (or (<= 124 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,353 INFO L273 TraceCheckUtils]: 62: Hoare triple {29734#(and (or (<= main_i 124) (<= main_n 47)) (or (<= 124 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29734#(and (or (<= main_i 124) (<= main_n 47)) (or (<= 124 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,354 INFO L273 TraceCheckUtils]: 63: Hoare triple {29734#(and (or (<= main_i 124) (<= main_n 47)) (or (<= 124 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29735#(and (or (<= main_i 128) (<= main_n 47)) (or (< 47 main_n) (<= 128 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,355 INFO L273 TraceCheckUtils]: 64: Hoare triple {29735#(and (or (<= main_i 128) (<= main_n 47)) (or (< 47 main_n) (<= 128 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29735#(and (or (<= main_i 128) (<= main_n 47)) (or (< 47 main_n) (<= 128 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,356 INFO L273 TraceCheckUtils]: 65: Hoare triple {29735#(and (or (<= main_i 128) (<= main_n 47)) (or (< 47 main_n) (<= 128 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29736#(and (or (<= 132 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 132) (<= main_n 47)))} is VALID [2019-02-27 13:03:58,357 INFO L273 TraceCheckUtils]: 66: Hoare triple {29736#(and (or (<= 132 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 132) (<= main_n 47)))} assume i <= n * 4; {29736#(and (or (<= 132 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 132) (<= main_n 47)))} is VALID [2019-02-27 13:03:58,358 INFO L273 TraceCheckUtils]: 67: Hoare triple {29736#(and (or (<= 132 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 132) (<= main_n 47)))} assume a[i] != 23;i := i + 4; {29737#(and (or (<= main_i 136) (<= main_n 47)) (or (<= 136 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,359 INFO L273 TraceCheckUtils]: 68: Hoare triple {29737#(and (or (<= main_i 136) (<= main_n 47)) (or (<= 136 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29737#(and (or (<= main_i 136) (<= main_n 47)) (or (<= 136 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,360 INFO L273 TraceCheckUtils]: 69: Hoare triple {29737#(and (or (<= main_i 136) (<= main_n 47)) (or (<= 136 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29738#(and (or (<= main_n 47) (<= main_i 140)) (or (< 47 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,361 INFO L273 TraceCheckUtils]: 70: Hoare triple {29738#(and (or (<= main_n 47) (<= main_i 140)) (or (< 47 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29738#(and (or (<= main_n 47) (<= main_i 140)) (or (< 47 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,362 INFO L273 TraceCheckUtils]: 71: Hoare triple {29738#(and (or (<= main_n 47) (<= main_i 140)) (or (< 47 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29739#(and (or (<= main_n 47) (<= main_i 144)) (or (< 47 main_n) (<= 144 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,363 INFO L273 TraceCheckUtils]: 72: Hoare triple {29739#(and (or (<= main_n 47) (<= main_i 144)) (or (< 47 main_n) (<= 144 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29739#(and (or (<= main_n 47) (<= main_i 144)) (or (< 47 main_n) (<= 144 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,364 INFO L273 TraceCheckUtils]: 73: Hoare triple {29739#(and (or (<= main_n 47) (<= main_i 144)) (or (< 47 main_n) (<= 144 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29740#(and (or (<= main_i 148) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 148 main_i)))} is VALID [2019-02-27 13:03:58,365 INFO L273 TraceCheckUtils]: 74: Hoare triple {29740#(and (or (<= main_i 148) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 148 main_i)))} assume i <= n * 4; {29740#(and (or (<= main_i 148) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 148 main_i)))} is VALID [2019-02-27 13:03:58,366 INFO L273 TraceCheckUtils]: 75: Hoare triple {29740#(and (or (<= main_i 148) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 148 main_i)))} assume a[i] != 23;i := i + 4; {29741#(and (or (<= main_n 47) (<= main_i 152)) (or (<= 152 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,367 INFO L273 TraceCheckUtils]: 76: Hoare triple {29741#(and (or (<= main_n 47) (<= main_i 152)) (or (<= 152 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29741#(and (or (<= main_n 47) (<= main_i 152)) (or (<= 152 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,368 INFO L273 TraceCheckUtils]: 77: Hoare triple {29741#(and (or (<= main_n 47) (<= main_i 152)) (or (<= 152 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29742#(and (or (<= 156 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 156) (<= main_n 47)))} is VALID [2019-02-27 13:03:58,368 INFO L273 TraceCheckUtils]: 78: Hoare triple {29742#(and (or (<= 156 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 156) (<= main_n 47)))} assume i <= n * 4; {29742#(and (or (<= 156 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 156) (<= main_n 47)))} is VALID [2019-02-27 13:03:58,370 INFO L273 TraceCheckUtils]: 79: Hoare triple {29742#(and (or (<= 156 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 156) (<= main_n 47)))} assume a[i] != 23;i := i + 4; {29743#(and (or (<= 160 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 47) (<= main_i 160)))} is VALID [2019-02-27 13:03:58,370 INFO L273 TraceCheckUtils]: 80: Hoare triple {29743#(and (or (<= 160 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 47) (<= main_i 160)))} assume i <= n * 4; {29743#(and (or (<= 160 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 47) (<= main_i 160)))} is VALID [2019-02-27 13:03:58,371 INFO L273 TraceCheckUtils]: 81: Hoare triple {29743#(and (or (<= 160 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 47) (<= main_i 160)))} assume a[i] != 23;i := i + 4; {29744#(and (or (<= 164 main_i) (< 47 main_n)) (or (<= main_i 164) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,372 INFO L273 TraceCheckUtils]: 82: Hoare triple {29744#(and (or (<= 164 main_i) (< 47 main_n)) (or (<= main_i 164) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29744#(and (or (<= 164 main_i) (< 47 main_n)) (or (<= main_i 164) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,373 INFO L273 TraceCheckUtils]: 83: Hoare triple {29744#(and (or (<= 164 main_i) (< 47 main_n)) (or (<= main_i 164) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29745#(and (or (<= 168 main_i) (< 47 main_n)) (or (<= main_i 168) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,374 INFO L273 TraceCheckUtils]: 84: Hoare triple {29745#(and (or (<= 168 main_i) (< 47 main_n)) (or (<= main_i 168) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29745#(and (or (<= 168 main_i) (< 47 main_n)) (or (<= main_i 168) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,375 INFO L273 TraceCheckUtils]: 85: Hoare triple {29745#(and (or (<= 168 main_i) (< 47 main_n)) (or (<= main_i 168) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29746#(and (or (<= main_i 172) (<= main_n 47)) (or (< 47 main_n) (<= 172 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,376 INFO L273 TraceCheckUtils]: 86: Hoare triple {29746#(and (or (<= main_i 172) (<= main_n 47)) (or (< 47 main_n) (<= 172 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29746#(and (or (<= main_i 172) (<= main_n 47)) (or (< 47 main_n) (<= 172 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,377 INFO L273 TraceCheckUtils]: 87: Hoare triple {29746#(and (or (<= main_i 172) (<= main_n 47)) (or (< 47 main_n) (<= 172 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29747#(and (or (<= 176 main_i) (< 47 main_n)) (or (<= main_i 176) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,378 INFO L273 TraceCheckUtils]: 88: Hoare triple {29747#(and (or (<= 176 main_i) (< 47 main_n)) (or (<= main_i 176) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29747#(and (or (<= 176 main_i) (< 47 main_n)) (or (<= main_i 176) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,379 INFO L273 TraceCheckUtils]: 89: Hoare triple {29747#(and (or (<= 176 main_i) (< 47 main_n)) (or (<= main_i 176) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29748#(and (or (<= main_i 180) (<= main_n 47)) (or (< 47 main_n) (<= 180 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,379 INFO L273 TraceCheckUtils]: 90: Hoare triple {29748#(and (or (<= main_i 180) (<= main_n 47)) (or (< 47 main_n) (<= 180 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29748#(and (or (<= main_i 180) (<= main_n 47)) (or (< 47 main_n) (<= 180 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,381 INFO L273 TraceCheckUtils]: 91: Hoare triple {29748#(and (or (<= main_i 180) (<= main_n 47)) (or (< 47 main_n) (<= 180 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29749#(and (or (< 47 main_n) (<= 184 main_i)) (or (<= main_i 184) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,381 INFO L273 TraceCheckUtils]: 92: Hoare triple {29749#(and (or (< 47 main_n) (<= 184 main_i)) (or (<= main_i 184) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29749#(and (or (< 47 main_n) (<= 184 main_i)) (or (<= main_i 184) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:03:58,383 INFO L273 TraceCheckUtils]: 93: Hoare triple {29749#(and (or (< 47 main_n) (<= 184 main_i)) (or (<= main_i 184) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29750#(and (or (= (* 4 main_n) main_i) (and (or (< 47 main_n) (<= (* 4 main_n) main_i)) (or (<= main_i 188) (<= main_n 47)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-02-27 13:03:58,384 INFO L273 TraceCheckUtils]: 94: Hoare triple {29750#(and (or (= (* 4 main_n) main_i) (and (or (< 47 main_n) (<= (* 4 main_n) main_i)) (or (<= main_i 188) (<= main_n 47)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume i <= n * 4; {29751#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 188) (< 47 main_n))))} is VALID [2019-02-27 13:03:58,385 INFO L273 TraceCheckUtils]: 95: Hoare triple {29751#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 188) (< 47 main_n))))} assume a[i] != 23;i := i + 4; {29752#(and (<= main_i 192) (<= 48 main_n))} is VALID [2019-02-27 13:03:58,385 INFO L273 TraceCheckUtils]: 96: Hoare triple {29752#(and (<= main_i 192) (<= 48 main_n))} assume !(i <= n * 4); {29702#false} is VALID [2019-02-27 13:03:58,425 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 0 proven. 2256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:03:58,425 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 13:03:58,425 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 13:03:58,425 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 13:03:58,425 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 13:03:58,426 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 13:03:58,426 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 13:03:58,434 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-27 13:03:58,434 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-27 13:03:58,504 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 48 check-sat command(s) [2019-02-27 13:03:58,504 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 13:03:58,506 WARN L254 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 101 conjunts are in the unsatisfiable core [2019-02-27 13:03:58,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:03:58,542 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 13:03:58,656 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 13:03:58,678 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 13:03:58,765 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 13:03:58,765 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 13:03:58,777 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 13:03:58,777 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_51]. (and (= (store v_main_a_51 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-27 13:03:58,778 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 13:04:03,099 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 13:04:03,101 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 13:04:03,107 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 13:04:03,108 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 13:04:03,110 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 13:04:03,110 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 188 .cse0) (<= main_i 192) (= 23 (select main_a .cse0)) (not (= (select main_a 188) 23)))) [2019-02-27 13:04:03,111 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 188 .cse0) (not (= 188 .cse0)) (<= main_i 192))) [2019-02-27 13:04:03,177 INFO L273 TraceCheckUtils]: 0: Hoare triple {29701#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {29756#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,177 INFO L273 TraceCheckUtils]: 1: Hoare triple {29756#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29760#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 13:04:03,178 INFO L273 TraceCheckUtils]: 2: Hoare triple {29760#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {29760#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 13:04:03,178 INFO L273 TraceCheckUtils]: 3: Hoare triple {29760#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {29767#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,179 INFO L273 TraceCheckUtils]: 4: Hoare triple {29767#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29767#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,180 INFO L273 TraceCheckUtils]: 5: Hoare triple {29767#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29774#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 13:04:03,180 INFO L273 TraceCheckUtils]: 6: Hoare triple {29774#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {29774#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 13:04:03,181 INFO L273 TraceCheckUtils]: 7: Hoare triple {29774#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {29781#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,182 INFO L273 TraceCheckUtils]: 8: Hoare triple {29781#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29781#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,182 INFO L273 TraceCheckUtils]: 9: Hoare triple {29781#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29788#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,183 INFO L273 TraceCheckUtils]: 10: Hoare triple {29788#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29788#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,184 INFO L273 TraceCheckUtils]: 11: Hoare triple {29788#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29795#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,184 INFO L273 TraceCheckUtils]: 12: Hoare triple {29795#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29795#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,185 INFO L273 TraceCheckUtils]: 13: Hoare triple {29795#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29802#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,186 INFO L273 TraceCheckUtils]: 14: Hoare triple {29802#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29802#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,186 INFO L273 TraceCheckUtils]: 15: Hoare triple {29802#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29809#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,187 INFO L273 TraceCheckUtils]: 16: Hoare triple {29809#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29809#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,188 INFO L273 TraceCheckUtils]: 17: Hoare triple {29809#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29816#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,188 INFO L273 TraceCheckUtils]: 18: Hoare triple {29816#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29816#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,189 INFO L273 TraceCheckUtils]: 19: Hoare triple {29816#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29823#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,190 INFO L273 TraceCheckUtils]: 20: Hoare triple {29823#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29823#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,190 INFO L273 TraceCheckUtils]: 21: Hoare triple {29823#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29830#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,191 INFO L273 TraceCheckUtils]: 22: Hoare triple {29830#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29830#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,192 INFO L273 TraceCheckUtils]: 23: Hoare triple {29830#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29837#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,192 INFO L273 TraceCheckUtils]: 24: Hoare triple {29837#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29837#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,193 INFO L273 TraceCheckUtils]: 25: Hoare triple {29837#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29844#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,194 INFO L273 TraceCheckUtils]: 26: Hoare triple {29844#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29844#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,194 INFO L273 TraceCheckUtils]: 27: Hoare triple {29844#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29851#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,195 INFO L273 TraceCheckUtils]: 28: Hoare triple {29851#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29851#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,196 INFO L273 TraceCheckUtils]: 29: Hoare triple {29851#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29858#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,196 INFO L273 TraceCheckUtils]: 30: Hoare triple {29858#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29858#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,197 INFO L273 TraceCheckUtils]: 31: Hoare triple {29858#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29865#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,198 INFO L273 TraceCheckUtils]: 32: Hoare triple {29865#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29865#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,198 INFO L273 TraceCheckUtils]: 33: Hoare triple {29865#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29872#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,199 INFO L273 TraceCheckUtils]: 34: Hoare triple {29872#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29872#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,200 INFO L273 TraceCheckUtils]: 35: Hoare triple {29872#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29879#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,200 INFO L273 TraceCheckUtils]: 36: Hoare triple {29879#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29879#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,201 INFO L273 TraceCheckUtils]: 37: Hoare triple {29879#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29886#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,202 INFO L273 TraceCheckUtils]: 38: Hoare triple {29886#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29886#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,202 INFO L273 TraceCheckUtils]: 39: Hoare triple {29886#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29893#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 13:04:03,203 INFO L273 TraceCheckUtils]: 40: Hoare triple {29893#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {29893#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 13:04:03,204 INFO L273 TraceCheckUtils]: 41: Hoare triple {29893#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {29900#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,204 INFO L273 TraceCheckUtils]: 42: Hoare triple {29900#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29900#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,205 INFO L273 TraceCheckUtils]: 43: Hoare triple {29900#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29907#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,206 INFO L273 TraceCheckUtils]: 44: Hoare triple {29907#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29907#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,206 INFO L273 TraceCheckUtils]: 45: Hoare triple {29907#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29914#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,207 INFO L273 TraceCheckUtils]: 46: Hoare triple {29914#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29914#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,208 INFO L273 TraceCheckUtils]: 47: Hoare triple {29914#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29921#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,208 INFO L273 TraceCheckUtils]: 48: Hoare triple {29921#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29921#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,209 INFO L273 TraceCheckUtils]: 49: Hoare triple {29921#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29928#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,210 INFO L273 TraceCheckUtils]: 50: Hoare triple {29928#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29928#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,210 INFO L273 TraceCheckUtils]: 51: Hoare triple {29928#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29935#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,211 INFO L273 TraceCheckUtils]: 52: Hoare triple {29935#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29935#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,212 INFO L273 TraceCheckUtils]: 53: Hoare triple {29935#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29942#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,212 INFO L273 TraceCheckUtils]: 54: Hoare triple {29942#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29942#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,213 INFO L273 TraceCheckUtils]: 55: Hoare triple {29942#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29949#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,214 INFO L273 TraceCheckUtils]: 56: Hoare triple {29949#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29949#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,214 INFO L273 TraceCheckUtils]: 57: Hoare triple {29949#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29956#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,215 INFO L273 TraceCheckUtils]: 58: Hoare triple {29956#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29956#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,216 INFO L273 TraceCheckUtils]: 59: Hoare triple {29956#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29963#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,216 INFO L273 TraceCheckUtils]: 60: Hoare triple {29963#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29963#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,217 INFO L273 TraceCheckUtils]: 61: Hoare triple {29963#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29970#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,218 INFO L273 TraceCheckUtils]: 62: Hoare triple {29970#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29970#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,219 INFO L273 TraceCheckUtils]: 63: Hoare triple {29970#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29977#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,219 INFO L273 TraceCheckUtils]: 64: Hoare triple {29977#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29977#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,220 INFO L273 TraceCheckUtils]: 65: Hoare triple {29977#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29984#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,221 INFO L273 TraceCheckUtils]: 66: Hoare triple {29984#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29984#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,221 INFO L273 TraceCheckUtils]: 67: Hoare triple {29984#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29991#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,222 INFO L273 TraceCheckUtils]: 68: Hoare triple {29991#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29991#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,223 INFO L273 TraceCheckUtils]: 69: Hoare triple {29991#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29998#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 13:04:03,223 INFO L273 TraceCheckUtils]: 70: Hoare triple {29998#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {29998#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 13:04:03,224 INFO L273 TraceCheckUtils]: 71: Hoare triple {29998#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {30005#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,225 INFO L273 TraceCheckUtils]: 72: Hoare triple {30005#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30005#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,226 INFO L273 TraceCheckUtils]: 73: Hoare triple {30005#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30012#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,226 INFO L273 TraceCheckUtils]: 74: Hoare triple {30012#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30012#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,227 INFO L273 TraceCheckUtils]: 75: Hoare triple {30012#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30019#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,228 INFO L273 TraceCheckUtils]: 76: Hoare triple {30019#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30019#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,228 INFO L273 TraceCheckUtils]: 77: Hoare triple {30019#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30026#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,229 INFO L273 TraceCheckUtils]: 78: Hoare triple {30026#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30026#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,230 INFO L273 TraceCheckUtils]: 79: Hoare triple {30026#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30033#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,230 INFO L273 TraceCheckUtils]: 80: Hoare triple {30033#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30033#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,231 INFO L273 TraceCheckUtils]: 81: Hoare triple {30033#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30040#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-02-27 13:04:03,232 INFO L273 TraceCheckUtils]: 82: Hoare triple {30040#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {30040#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-02-27 13:04:03,232 INFO L273 TraceCheckUtils]: 83: Hoare triple {30040#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {30047#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,233 INFO L273 TraceCheckUtils]: 84: Hoare triple {30047#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30047#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,234 INFO L273 TraceCheckUtils]: 85: Hoare triple {30047#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30054#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,234 INFO L273 TraceCheckUtils]: 86: Hoare triple {30054#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30054#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,235 INFO L273 TraceCheckUtils]: 87: Hoare triple {30054#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30061#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,236 INFO L273 TraceCheckUtils]: 88: Hoare triple {30061#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30061#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,236 INFO L273 TraceCheckUtils]: 89: Hoare triple {30061#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30068#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,237 INFO L273 TraceCheckUtils]: 90: Hoare triple {30068#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30068#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,238 INFO L273 TraceCheckUtils]: 91: Hoare triple {30068#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30075#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,238 INFO L273 TraceCheckUtils]: 92: Hoare triple {30075#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30075#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,239 INFO L273 TraceCheckUtils]: 93: Hoare triple {30075#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30082#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,240 INFO L273 TraceCheckUtils]: 94: Hoare triple {30082#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30086#(and (= main_i 188) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:03,241 INFO L273 TraceCheckUtils]: 95: Hoare triple {30086#(and (= main_i 188) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29752#(and (<= main_i 192) (<= 48 main_n))} is VALID [2019-02-27 13:04:03,241 INFO L273 TraceCheckUtils]: 96: Hoare triple {29752#(and (<= main_i 192) (<= 48 main_n))} assume !(i <= n * 4); {29702#false} is VALID [2019-02-27 13:04:03,262 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 0 proven. 2256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:04:03,262 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 13:04:09,872 INFO L273 TraceCheckUtils]: 96: Hoare triple {30093#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {29702#false} is VALID [2019-02-27 13:04:09,872 INFO L273 TraceCheckUtils]: 95: Hoare triple {30097#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {30093#(<= main_i (* 4 main_n))} is VALID [2019-02-27 13:04:09,873 INFO L273 TraceCheckUtils]: 94: Hoare triple {30101#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {30097#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:04:09,874 INFO L273 TraceCheckUtils]: 93: Hoare triple {30105#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {30101#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:04:09,874 INFO L273 TraceCheckUtils]: 92: Hoare triple {30105#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {30105#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:04:09,875 INFO L273 TraceCheckUtils]: 91: Hoare triple {30112#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {30105#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:04:09,875 INFO L273 TraceCheckUtils]: 90: Hoare triple {30112#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {30112#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:04:09,877 INFO L273 TraceCheckUtils]: 89: Hoare triple {30119#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {30112#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:04:09,877 INFO L273 TraceCheckUtils]: 88: Hoare triple {30119#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {30119#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:04:09,878 INFO L273 TraceCheckUtils]: 87: Hoare triple {30126#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {30119#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:04:09,879 INFO L273 TraceCheckUtils]: 86: Hoare triple {30126#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {30126#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:04:09,880 INFO L273 TraceCheckUtils]: 85: Hoare triple {30133#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30126#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:04:09,880 INFO L273 TraceCheckUtils]: 84: Hoare triple {30133#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {30133#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:04:09,882 INFO L273 TraceCheckUtils]: 83: Hoare triple {30140#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {30133#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:04:09,882 INFO L273 TraceCheckUtils]: 82: Hoare triple {30140#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {30140#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:04:09,883 INFO L273 TraceCheckUtils]: 81: Hoare triple {30147#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30140#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:04:09,884 INFO L273 TraceCheckUtils]: 80: Hoare triple {30147#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {30147#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:04:09,885 INFO L273 TraceCheckUtils]: 79: Hoare triple {30154#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30147#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:04:09,885 INFO L273 TraceCheckUtils]: 78: Hoare triple {30154#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {30154#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:04:09,886 INFO L273 TraceCheckUtils]: 77: Hoare triple {30161#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30154#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:04:09,887 INFO L273 TraceCheckUtils]: 76: Hoare triple {30161#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {30161#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:04:09,888 INFO L273 TraceCheckUtils]: 75: Hoare triple {30168#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {30161#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:04:09,888 INFO L273 TraceCheckUtils]: 74: Hoare triple {30168#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {30168#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:04:09,890 INFO L273 TraceCheckUtils]: 73: Hoare triple {30175#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30168#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:04:09,890 INFO L273 TraceCheckUtils]: 72: Hoare triple {30175#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {30175#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:04:09,891 INFO L273 TraceCheckUtils]: 71: Hoare triple {30182#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30175#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:04:09,892 INFO L273 TraceCheckUtils]: 70: Hoare triple {30182#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {30182#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:04:09,893 INFO L273 TraceCheckUtils]: 69: Hoare triple {30189#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {30182#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:04:09,893 INFO L273 TraceCheckUtils]: 68: Hoare triple {30189#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {30189#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:04:09,894 INFO L273 TraceCheckUtils]: 67: Hoare triple {30196#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30189#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:04:09,895 INFO L273 TraceCheckUtils]: 66: Hoare triple {30196#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {30196#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:04:09,896 INFO L273 TraceCheckUtils]: 65: Hoare triple {30203#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {30196#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:04:09,896 INFO L273 TraceCheckUtils]: 64: Hoare triple {30203#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {30203#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:04:09,897 INFO L273 TraceCheckUtils]: 63: Hoare triple {30210#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {30203#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:04:09,898 INFO L273 TraceCheckUtils]: 62: Hoare triple {30210#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {30210#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:04:09,899 INFO L273 TraceCheckUtils]: 61: Hoare triple {30217#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {30210#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:04:09,899 INFO L273 TraceCheckUtils]: 60: Hoare triple {30217#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {30217#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:04:09,900 INFO L273 TraceCheckUtils]: 59: Hoare triple {30224#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {30217#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:04:09,901 INFO L273 TraceCheckUtils]: 58: Hoare triple {30224#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {30224#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:04:09,902 INFO L273 TraceCheckUtils]: 57: Hoare triple {30231#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {30224#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:04:09,903 INFO L273 TraceCheckUtils]: 56: Hoare triple {30231#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {30231#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:04:09,904 INFO L273 TraceCheckUtils]: 55: Hoare triple {30238#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {30231#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:04:09,904 INFO L273 TraceCheckUtils]: 54: Hoare triple {30238#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {30238#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:04:09,905 INFO L273 TraceCheckUtils]: 53: Hoare triple {30245#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30238#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:04:09,906 INFO L273 TraceCheckUtils]: 52: Hoare triple {30245#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {30245#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:04:09,907 INFO L273 TraceCheckUtils]: 51: Hoare triple {30252#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30245#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:04:09,907 INFO L273 TraceCheckUtils]: 50: Hoare triple {30252#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {30252#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:04:09,908 INFO L273 TraceCheckUtils]: 49: Hoare triple {30259#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30252#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:04:09,909 INFO L273 TraceCheckUtils]: 48: Hoare triple {30259#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {30259#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:04:09,910 INFO L273 TraceCheckUtils]: 47: Hoare triple {30266#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {30259#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:04:09,910 INFO L273 TraceCheckUtils]: 46: Hoare triple {30266#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {30266#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:04:09,912 INFO L273 TraceCheckUtils]: 45: Hoare triple {30273#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30266#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:04:09,912 INFO L273 TraceCheckUtils]: 44: Hoare triple {30273#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {30273#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:04:09,919 INFO L273 TraceCheckUtils]: 43: Hoare triple {30280#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {30273#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:04:09,920 INFO L273 TraceCheckUtils]: 42: Hoare triple {30280#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {30280#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:04:09,921 INFO L273 TraceCheckUtils]: 41: Hoare triple {30287#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {30280#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:04:09,921 INFO L273 TraceCheckUtils]: 40: Hoare triple {30287#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {30287#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:04:09,922 INFO L273 TraceCheckUtils]: 39: Hoare triple {30294#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {30287#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:04:09,922 INFO L273 TraceCheckUtils]: 38: Hoare triple {30294#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {30294#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:04:09,923 INFO L273 TraceCheckUtils]: 37: Hoare triple {30301#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30294#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:04:09,923 INFO L273 TraceCheckUtils]: 36: Hoare triple {30301#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {30301#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:04:09,924 INFO L273 TraceCheckUtils]: 35: Hoare triple {30308#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30301#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:04:09,924 INFO L273 TraceCheckUtils]: 34: Hoare triple {30308#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {30308#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:04:09,925 INFO L273 TraceCheckUtils]: 33: Hoare triple {30315#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {30308#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:04:09,926 INFO L273 TraceCheckUtils]: 32: Hoare triple {30315#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {30315#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:04:09,927 INFO L273 TraceCheckUtils]: 31: Hoare triple {30322#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30315#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:04:09,927 INFO L273 TraceCheckUtils]: 30: Hoare triple {30322#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {30322#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:04:09,929 INFO L273 TraceCheckUtils]: 29: Hoare triple {30329#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {30322#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:04:09,929 INFO L273 TraceCheckUtils]: 28: Hoare triple {30329#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {30329#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:04:09,930 INFO L273 TraceCheckUtils]: 27: Hoare triple {30336#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {30329#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:04:09,931 INFO L273 TraceCheckUtils]: 26: Hoare triple {30336#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {30336#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:04:09,932 INFO L273 TraceCheckUtils]: 25: Hoare triple {30343#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {30336#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:04:09,932 INFO L273 TraceCheckUtils]: 24: Hoare triple {30343#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {30343#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:04:09,933 INFO L273 TraceCheckUtils]: 23: Hoare triple {30350#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {30343#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:04:09,934 INFO L273 TraceCheckUtils]: 22: Hoare triple {30350#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {30350#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:04:09,935 INFO L273 TraceCheckUtils]: 21: Hoare triple {30357#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {30350#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:04:09,935 INFO L273 TraceCheckUtils]: 20: Hoare triple {30357#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {30357#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-02-27 13:04:09,936 INFO L273 TraceCheckUtils]: 19: Hoare triple {30364#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {30357#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-02-27 13:04:09,937 INFO L273 TraceCheckUtils]: 18: Hoare triple {30364#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {30364#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-02-27 13:04:09,938 INFO L273 TraceCheckUtils]: 17: Hoare triple {30371#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {30364#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-02-27 13:04:09,938 INFO L273 TraceCheckUtils]: 16: Hoare triple {30371#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {30371#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-02-27 13:04:09,939 INFO L273 TraceCheckUtils]: 15: Hoare triple {30378#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {30371#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-02-27 13:04:09,940 INFO L273 TraceCheckUtils]: 14: Hoare triple {30378#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {30378#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-02-27 13:04:09,941 INFO L273 TraceCheckUtils]: 13: Hoare triple {30385#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {30378#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-02-27 13:04:09,942 INFO L273 TraceCheckUtils]: 12: Hoare triple {30385#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {30385#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-02-27 13:04:09,943 INFO L273 TraceCheckUtils]: 11: Hoare triple {30392#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30385#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-02-27 13:04:09,943 INFO L273 TraceCheckUtils]: 10: Hoare triple {30392#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume i <= n * 4; {30392#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-02-27 13:04:09,944 INFO L273 TraceCheckUtils]: 9: Hoare triple {30399#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30392#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-02-27 13:04:09,945 INFO L273 TraceCheckUtils]: 8: Hoare triple {30399#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume i <= n * 4; {30399#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-02-27 13:04:09,946 INFO L273 TraceCheckUtils]: 7: Hoare triple {30406#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume a[i] != 23;i := i + 4; {30399#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-02-27 13:04:09,946 INFO L273 TraceCheckUtils]: 6: Hoare triple {30406#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume i <= n * 4; {30406#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-02-27 13:04:09,947 INFO L273 TraceCheckUtils]: 5: Hoare triple {30413#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume a[i] != 23;i := i + 4; {30406#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-02-27 13:04:09,948 INFO L273 TraceCheckUtils]: 4: Hoare triple {30413#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume i <= n * 4; {30413#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-02-27 13:04:09,949 INFO L273 TraceCheckUtils]: 3: Hoare triple {30420#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume a[i] != 23;i := i + 4; {30413#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-02-27 13:04:09,949 INFO L273 TraceCheckUtils]: 2: Hoare triple {30420#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume i <= n * 4; {30420#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2019-02-27 13:04:09,950 INFO L273 TraceCheckUtils]: 1: Hoare triple {30427#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume a[i] != 23;i := i + 4; {30420#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2019-02-27 13:04:09,951 INFO L273 TraceCheckUtils]: 0: Hoare triple {29701#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {30427#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2019-02-27 13:04:09,986 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 0 proven. 2256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:04:10,005 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 13:04:10,005 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50, 50] total 149 [2019-02-27 13:04:10,005 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 13:04:10,005 INFO L78 Accepts]: Start accepts. Automaton has 101 states. Word has length 97 [2019-02-27 13:04:10,006 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 13:04:10,006 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 101 states. [2019-02-27 13:04:10,235 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 193 edges. 193 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 13:04:10,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 101 states [2019-02-27 13:04:10,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2019-02-27 13:04:10,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2758, Invalid=19892, Unknown=0, NotChecked=0, Total=22650 [2019-02-27 13:04:10,237 INFO L87 Difference]: Start difference. First operand 98 states and 98 transitions. Second operand 101 states. [2019-02-27 13:04:22,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:04:22,576 INFO L93 Difference]: Finished difference Result 102 states and 102 transitions. [2019-02-27 13:04:22,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2019-02-27 13:04:22,577 INFO L78 Accepts]: Start accepts. Automaton has 101 states. Word has length 97 [2019-02-27 13:04:22,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 13:04:22,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-02-27 13:04:22,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 102 transitions. [2019-02-27 13:04:22,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-02-27 13:04:22,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 102 transitions. [2019-02-27 13:04:22,579 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 52 states and 102 transitions. [2019-02-27 13:04:22,696 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 102 edges. 102 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 13:04:22,698 INFO L225 Difference]: With dead ends: 102 [2019-02-27 13:04:22,698 INFO L226 Difference]: Without dead ends: 101 [2019-02-27 13:04:22,699 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5096 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=2758, Invalid=19892, Unknown=0, NotChecked=0, Total=22650 [2019-02-27 13:04:22,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-02-27 13:04:22,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 100. [2019-02-27 13:04:22,806 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 13:04:22,806 INFO L82 GeneralOperation]: Start isEquivalent. First operand 101 states. Second operand 100 states. [2019-02-27 13:04:22,807 INFO L74 IsIncluded]: Start isIncluded. First operand 101 states. Second operand 100 states. [2019-02-27 13:04:22,807 INFO L87 Difference]: Start difference. First operand 101 states. Second operand 100 states. [2019-02-27 13:04:22,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:04:22,809 INFO L93 Difference]: Finished difference Result 101 states and 101 transitions. [2019-02-27 13:04:22,809 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 101 transitions. [2019-02-27 13:04:22,809 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 13:04:22,809 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 13:04:22,809 INFO L74 IsIncluded]: Start isIncluded. First operand 100 states. Second operand 101 states. [2019-02-27 13:04:22,810 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 101 states. [2019-02-27 13:04:22,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:04:22,811 INFO L93 Difference]: Finished difference Result 101 states and 101 transitions. [2019-02-27 13:04:22,811 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 101 transitions. [2019-02-27 13:04:22,811 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 13:04:22,811 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 13:04:22,811 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 13:04:22,811 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 13:04:22,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-02-27 13:04:22,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 100 transitions. [2019-02-27 13:04:22,813 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 100 transitions. Word has length 97 [2019-02-27 13:04:22,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 13:04:22,813 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 100 transitions. [2019-02-27 13:04:22,813 INFO L481 AbstractCegarLoop]: Interpolant automaton has 101 states. [2019-02-27 13:04:22,813 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 100 transitions. [2019-02-27 13:04:22,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-02-27 13:04:22,814 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 13:04:22,814 INFO L402 BasicCegarLoop]: trace histogram [49, 48, 1, 1] [2019-02-27 13:04:22,814 INFO L423 AbstractCegarLoop]: === Iteration 49 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 13:04:22,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 13:04:22,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1442099904, now seen corresponding path program 48 times [2019-02-27 13:04:22,815 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 13:04:22,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 13:04:22,815 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 13:04:22,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 13:04:22,816 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 13:04:22,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:04:25,739 INFO L273 TraceCheckUtils]: 0: Hoare triple {30933#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {30935#(and (or (<= main_n 48) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))) (or (<= 0 main_i) (< 48 main_n)))} is VALID [2019-02-27 13:04:25,740 INFO L273 TraceCheckUtils]: 1: Hoare triple {30935#(and (or (<= main_n 48) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))) (or (<= 0 main_i) (< 48 main_n)))} assume a[i] != 23;i := i + 4; {30936#(and (or (< 48 main_n) (<= 4 main_i)) (or (<= main_n 48) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,741 INFO L273 TraceCheckUtils]: 2: Hoare triple {30936#(and (or (< 48 main_n) (<= 4 main_i)) (or (<= main_n 48) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30936#(and (or (< 48 main_n) (<= 4 main_i)) (or (<= main_n 48) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,742 INFO L273 TraceCheckUtils]: 3: Hoare triple {30936#(and (or (< 48 main_n) (<= 4 main_i)) (or (<= main_n 48) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30937#(and (or (<= main_n 48) (<= main_i 8)) (or (<= 8 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,743 INFO L273 TraceCheckUtils]: 4: Hoare triple {30937#(and (or (<= main_n 48) (<= main_i 8)) (or (<= 8 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30937#(and (or (<= main_n 48) (<= main_i 8)) (or (<= 8 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,744 INFO L273 TraceCheckUtils]: 5: Hoare triple {30937#(and (or (<= main_n 48) (<= main_i 8)) (or (<= 8 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30938#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_n 48) (<= main_i 12)) (or (< 48 main_n) (<= 12 main_i)))} is VALID [2019-02-27 13:04:25,745 INFO L273 TraceCheckUtils]: 6: Hoare triple {30938#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_n 48) (<= main_i 12)) (or (< 48 main_n) (<= 12 main_i)))} assume i <= n * 4; {30938#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_n 48) (<= main_i 12)) (or (< 48 main_n) (<= 12 main_i)))} is VALID [2019-02-27 13:04:25,746 INFO L273 TraceCheckUtils]: 7: Hoare triple {30938#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_n 48) (<= main_i 12)) (or (< 48 main_n) (<= 12 main_i)))} assume a[i] != 23;i := i + 4; {30939#(and (or (<= main_n 48) (<= main_i 16)) (or (<= 16 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,746 INFO L273 TraceCheckUtils]: 8: Hoare triple {30939#(and (or (<= main_n 48) (<= main_i 16)) (or (<= 16 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30939#(and (or (<= main_n 48) (<= main_i 16)) (or (<= 16 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,747 INFO L273 TraceCheckUtils]: 9: Hoare triple {30939#(and (or (<= main_n 48) (<= main_i 16)) (or (<= 16 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30940#(and (or (< 48 main_n) (<= 20 main_i)) (or (<= main_n 48) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,748 INFO L273 TraceCheckUtils]: 10: Hoare triple {30940#(and (or (< 48 main_n) (<= 20 main_i)) (or (<= main_n 48) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30940#(and (or (< 48 main_n) (<= 20 main_i)) (or (<= main_n 48) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,749 INFO L273 TraceCheckUtils]: 11: Hoare triple {30940#(and (or (< 48 main_n) (<= 20 main_i)) (or (<= main_n 48) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30941#(and (or (<= 24 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,750 INFO L273 TraceCheckUtils]: 12: Hoare triple {30941#(and (or (<= 24 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30941#(and (or (<= 24 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,751 INFO L273 TraceCheckUtils]: 13: Hoare triple {30941#(and (or (<= 24 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30942#(and (or (<= main_n 48) (<= main_i 28)) (or (<= 28 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,752 INFO L273 TraceCheckUtils]: 14: Hoare triple {30942#(and (or (<= main_n 48) (<= main_i 28)) (or (<= 28 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30942#(and (or (<= main_n 48) (<= main_i 28)) (or (<= 28 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,753 INFO L273 TraceCheckUtils]: 15: Hoare triple {30942#(and (or (<= main_n 48) (<= main_i 28)) (or (<= 28 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30943#(and (or (<= main_i 32) (<= main_n 48)) (or (<= 32 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,753 INFO L273 TraceCheckUtils]: 16: Hoare triple {30943#(and (or (<= main_i 32) (<= main_n 48)) (or (<= 32 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30943#(and (or (<= main_i 32) (<= main_n 48)) (or (<= 32 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,754 INFO L273 TraceCheckUtils]: 17: Hoare triple {30943#(and (or (<= main_i 32) (<= main_n 48)) (or (<= 32 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30944#(and (or (< 48 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,755 INFO L273 TraceCheckUtils]: 18: Hoare triple {30944#(and (or (< 48 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30944#(and (or (< 48 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,756 INFO L273 TraceCheckUtils]: 19: Hoare triple {30944#(and (or (< 48 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30945#(and (or (<= 40 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,757 INFO L273 TraceCheckUtils]: 20: Hoare triple {30945#(and (or (<= 40 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30945#(and (or (<= 40 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,758 INFO L273 TraceCheckUtils]: 21: Hoare triple {30945#(and (or (<= 40 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30946#(and (or (<= main_n 48) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (<= 44 main_i) (< 48 main_n)))} is VALID [2019-02-27 13:04:25,759 INFO L273 TraceCheckUtils]: 22: Hoare triple {30946#(and (or (<= main_n 48) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (<= 44 main_i) (< 48 main_n)))} assume i <= n * 4; {30946#(and (or (<= main_n 48) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (<= 44 main_i) (< 48 main_n)))} is VALID [2019-02-27 13:04:25,760 INFO L273 TraceCheckUtils]: 23: Hoare triple {30946#(and (or (<= main_n 48) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (<= 44 main_i) (< 48 main_n)))} assume a[i] != 23;i := i + 4; {30947#(and (or (<= main_n 48) (<= main_i 48)) (or (<= 48 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,761 INFO L273 TraceCheckUtils]: 24: Hoare triple {30947#(and (or (<= main_n 48) (<= main_i 48)) (or (<= 48 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30947#(and (or (<= main_n 48) (<= main_i 48)) (or (<= 48 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,762 INFO L273 TraceCheckUtils]: 25: Hoare triple {30947#(and (or (<= main_n 48) (<= main_i 48)) (or (<= 48 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30948#(and (or (<= main_n 48) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 52 main_i)))} is VALID [2019-02-27 13:04:25,762 INFO L273 TraceCheckUtils]: 26: Hoare triple {30948#(and (or (<= main_n 48) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 52 main_i)))} assume i <= n * 4; {30948#(and (or (<= main_n 48) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 52 main_i)))} is VALID [2019-02-27 13:04:25,763 INFO L273 TraceCheckUtils]: 27: Hoare triple {30948#(and (or (<= main_n 48) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 52 main_i)))} assume a[i] != 23;i := i + 4; {30949#(and (or (<= main_n 48) (<= main_i 56)) (or (<= 56 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,764 INFO L273 TraceCheckUtils]: 28: Hoare triple {30949#(and (or (<= main_n 48) (<= main_i 56)) (or (<= 56 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30949#(and (or (<= main_n 48) (<= main_i 56)) (or (<= 56 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,765 INFO L273 TraceCheckUtils]: 29: Hoare triple {30949#(and (or (<= main_n 48) (<= main_i 56)) (or (<= 56 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30950#(and (or (<= 60 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,766 INFO L273 TraceCheckUtils]: 30: Hoare triple {30950#(and (or (<= 60 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30950#(and (or (<= 60 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,767 INFO L273 TraceCheckUtils]: 31: Hoare triple {30950#(and (or (<= 60 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30951#(and (or (<= main_n 48) (<= main_i 64)) (or (<= 64 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,768 INFO L273 TraceCheckUtils]: 32: Hoare triple {30951#(and (or (<= main_n 48) (<= main_i 64)) (or (<= 64 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30951#(and (or (<= main_n 48) (<= main_i 64)) (or (<= 64 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,769 INFO L273 TraceCheckUtils]: 33: Hoare triple {30951#(and (or (<= main_n 48) (<= main_i 64)) (or (<= 64 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30952#(and (or (<= main_n 48) (<= main_i 68)) (or (< 48 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,770 INFO L273 TraceCheckUtils]: 34: Hoare triple {30952#(and (or (<= main_n 48) (<= main_i 68)) (or (< 48 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30952#(and (or (<= main_n 48) (<= main_i 68)) (or (< 48 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,771 INFO L273 TraceCheckUtils]: 35: Hoare triple {30952#(and (or (<= main_n 48) (<= main_i 68)) (or (< 48 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30953#(and (or (<= main_n 48) (<= main_i 72)) (or (<= 72 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,771 INFO L273 TraceCheckUtils]: 36: Hoare triple {30953#(and (or (<= main_n 48) (<= main_i 72)) (or (<= 72 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30953#(and (or (<= main_n 48) (<= main_i 72)) (or (<= 72 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,772 INFO L273 TraceCheckUtils]: 37: Hoare triple {30953#(and (or (<= main_n 48) (<= main_i 72)) (or (<= 72 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30954#(and (or (<= main_i 76) (<= main_n 48)) (or (<= 76 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,773 INFO L273 TraceCheckUtils]: 38: Hoare triple {30954#(and (or (<= main_i 76) (<= main_n 48)) (or (<= 76 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30954#(and (or (<= main_i 76) (<= main_n 48)) (or (<= 76 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,774 INFO L273 TraceCheckUtils]: 39: Hoare triple {30954#(and (or (<= main_i 76) (<= main_n 48)) (or (<= 76 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30955#(and (or (<= main_n 48) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (<= 80 main_i) (< 48 main_n)))} is VALID [2019-02-27 13:04:25,775 INFO L273 TraceCheckUtils]: 40: Hoare triple {30955#(and (or (<= main_n 48) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (<= 80 main_i) (< 48 main_n)))} assume i <= n * 4; {30955#(and (or (<= main_n 48) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (<= 80 main_i) (< 48 main_n)))} is VALID [2019-02-27 13:04:25,776 INFO L273 TraceCheckUtils]: 41: Hoare triple {30955#(and (or (<= main_n 48) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (<= 80 main_i) (< 48 main_n)))} assume a[i] != 23;i := i + 4; {30956#(and (or (< 48 main_n) (<= 84 main_i)) (or (<= main_n 48) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,777 INFO L273 TraceCheckUtils]: 42: Hoare triple {30956#(and (or (< 48 main_n) (<= 84 main_i)) (or (<= main_n 48) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30956#(and (or (< 48 main_n) (<= 84 main_i)) (or (<= main_n 48) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,778 INFO L273 TraceCheckUtils]: 43: Hoare triple {30956#(and (or (< 48 main_n) (<= 84 main_i)) (or (<= main_n 48) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30957#(and (or (< 48 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 48)))} is VALID [2019-02-27 13:04:25,779 INFO L273 TraceCheckUtils]: 44: Hoare triple {30957#(and (or (< 48 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 48)))} assume i <= n * 4; {30957#(and (or (< 48 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 48)))} is VALID [2019-02-27 13:04:25,780 INFO L273 TraceCheckUtils]: 45: Hoare triple {30957#(and (or (< 48 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 48)))} assume a[i] != 23;i := i + 4; {30958#(and (or (< 48 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,780 INFO L273 TraceCheckUtils]: 46: Hoare triple {30958#(and (or (< 48 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30958#(and (or (< 48 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,782 INFO L273 TraceCheckUtils]: 47: Hoare triple {30958#(and (or (< 48 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30959#(and (or (<= main_i 96) (<= main_n 48)) (or (<= 96 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,782 INFO L273 TraceCheckUtils]: 48: Hoare triple {30959#(and (or (<= main_i 96) (<= main_n 48)) (or (<= 96 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30959#(and (or (<= main_i 96) (<= main_n 48)) (or (<= 96 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,783 INFO L273 TraceCheckUtils]: 49: Hoare triple {30959#(and (or (<= main_i 96) (<= main_n 48)) (or (<= 96 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30960#(and (or (<= main_n 48) (<= main_i 100)) (or (<= 100 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,784 INFO L273 TraceCheckUtils]: 50: Hoare triple {30960#(and (or (<= main_n 48) (<= main_i 100)) (or (<= 100 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30960#(and (or (<= main_n 48) (<= main_i 100)) (or (<= 100 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,785 INFO L273 TraceCheckUtils]: 51: Hoare triple {30960#(and (or (<= main_n 48) (<= main_i 100)) (or (<= 100 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30961#(and (or (<= 104 main_i) (< 48 main_n)) (or (<= main_i 104) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,786 INFO L273 TraceCheckUtils]: 52: Hoare triple {30961#(and (or (<= 104 main_i) (< 48 main_n)) (or (<= main_i 104) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30961#(and (or (<= 104 main_i) (< 48 main_n)) (or (<= main_i 104) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,787 INFO L273 TraceCheckUtils]: 53: Hoare triple {30961#(and (or (<= 104 main_i) (< 48 main_n)) (or (<= main_i 104) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30962#(and (or (<= 108 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,788 INFO L273 TraceCheckUtils]: 54: Hoare triple {30962#(and (or (<= 108 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30962#(and (or (<= 108 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,789 INFO L273 TraceCheckUtils]: 55: Hoare triple {30962#(and (or (<= 108 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30963#(and (or (<= main_n 48) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 112 main_i)))} is VALID [2019-02-27 13:04:25,790 INFO L273 TraceCheckUtils]: 56: Hoare triple {30963#(and (or (<= main_n 48) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 112 main_i)))} assume i <= n * 4; {30963#(and (or (<= main_n 48) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 112 main_i)))} is VALID [2019-02-27 13:04:25,791 INFO L273 TraceCheckUtils]: 57: Hoare triple {30963#(and (or (<= main_n 48) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 112 main_i)))} assume a[i] != 23;i := i + 4; {30964#(and (or (<= 116 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,792 INFO L273 TraceCheckUtils]: 58: Hoare triple {30964#(and (or (<= 116 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30964#(and (or (<= 116 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,793 INFO L273 TraceCheckUtils]: 59: Hoare triple {30964#(and (or (<= 116 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30965#(and (or (<= 120 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,793 INFO L273 TraceCheckUtils]: 60: Hoare triple {30965#(and (or (<= 120 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30965#(and (or (<= 120 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,794 INFO L273 TraceCheckUtils]: 61: Hoare triple {30965#(and (or (<= 120 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30966#(and (or (<= main_n 48) (<= main_i 124)) (or (<= 124 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,795 INFO L273 TraceCheckUtils]: 62: Hoare triple {30966#(and (or (<= main_n 48) (<= main_i 124)) (or (<= 124 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30966#(and (or (<= main_n 48) (<= main_i 124)) (or (<= 124 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,796 INFO L273 TraceCheckUtils]: 63: Hoare triple {30966#(and (or (<= main_n 48) (<= main_i 124)) (or (<= 124 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30967#(and (or (< 48 main_n) (<= 128 main_i)) (or (<= main_n 48) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,797 INFO L273 TraceCheckUtils]: 64: Hoare triple {30967#(and (or (< 48 main_n) (<= 128 main_i)) (or (<= main_n 48) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30967#(and (or (< 48 main_n) (<= 128 main_i)) (or (<= main_n 48) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,798 INFO L273 TraceCheckUtils]: 65: Hoare triple {30967#(and (or (< 48 main_n) (<= 128 main_i)) (or (<= main_n 48) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30968#(and (or (<= main_n 48) (<= main_i 132)) (or (<= 132 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,799 INFO L273 TraceCheckUtils]: 66: Hoare triple {30968#(and (or (<= main_n 48) (<= main_i 132)) (or (<= 132 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30968#(and (or (<= main_n 48) (<= main_i 132)) (or (<= 132 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,800 INFO L273 TraceCheckUtils]: 67: Hoare triple {30968#(and (or (<= main_n 48) (<= main_i 132)) (or (<= 132 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30969#(and (or (<= main_i 136) (<= main_n 48)) (or (<= 136 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,800 INFO L273 TraceCheckUtils]: 68: Hoare triple {30969#(and (or (<= main_i 136) (<= main_n 48)) (or (<= 136 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30969#(and (or (<= main_i 136) (<= main_n 48)) (or (<= 136 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,801 INFO L273 TraceCheckUtils]: 69: Hoare triple {30969#(and (or (<= main_i 136) (<= main_n 48)) (or (<= 136 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30970#(and (or (< 48 main_n) (<= 140 main_i)) (or (<= main_n 48) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,802 INFO L273 TraceCheckUtils]: 70: Hoare triple {30970#(and (or (< 48 main_n) (<= 140 main_i)) (or (<= main_n 48) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30970#(and (or (< 48 main_n) (<= 140 main_i)) (or (<= main_n 48) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,803 INFO L273 TraceCheckUtils]: 71: Hoare triple {30970#(and (or (< 48 main_n) (<= 140 main_i)) (or (<= main_n 48) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30971#(and (or (<= 144 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,804 INFO L273 TraceCheckUtils]: 72: Hoare triple {30971#(and (or (<= 144 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30971#(and (or (<= 144 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,805 INFO L273 TraceCheckUtils]: 73: Hoare triple {30971#(and (or (<= 144 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30972#(and (or (<= main_n 48) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 148 main_i)))} is VALID [2019-02-27 13:04:25,806 INFO L273 TraceCheckUtils]: 74: Hoare triple {30972#(and (or (<= main_n 48) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 148 main_i)))} assume i <= n * 4; {30972#(and (or (<= main_n 48) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 148 main_i)))} is VALID [2019-02-27 13:04:25,807 INFO L273 TraceCheckUtils]: 75: Hoare triple {30972#(and (or (<= main_n 48) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 148 main_i)))} assume a[i] != 23;i := i + 4; {30973#(and (or (<= main_n 48) (<= main_i 152)) (or (<= 152 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,808 INFO L273 TraceCheckUtils]: 76: Hoare triple {30973#(and (or (<= main_n 48) (<= main_i 152)) (or (<= 152 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30973#(and (or (<= main_n 48) (<= main_i 152)) (or (<= 152 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,809 INFO L273 TraceCheckUtils]: 77: Hoare triple {30973#(and (or (<= main_n 48) (<= main_i 152)) (or (<= 152 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30974#(and (or (<= main_n 48) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 48 main_n)))} is VALID [2019-02-27 13:04:25,809 INFO L273 TraceCheckUtils]: 78: Hoare triple {30974#(and (or (<= main_n 48) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 48 main_n)))} assume i <= n * 4; {30974#(and (or (<= main_n 48) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 48 main_n)))} is VALID [2019-02-27 13:04:25,810 INFO L273 TraceCheckUtils]: 79: Hoare triple {30974#(and (or (<= main_n 48) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 48 main_n)))} assume a[i] != 23;i := i + 4; {30975#(and (or (<= main_n 48) (<= main_i 160)) (or (<= 160 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,811 INFO L273 TraceCheckUtils]: 80: Hoare triple {30975#(and (or (<= main_n 48) (<= main_i 160)) (or (<= 160 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30975#(and (or (<= main_n 48) (<= main_i 160)) (or (<= 160 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,812 INFO L273 TraceCheckUtils]: 81: Hoare triple {30975#(and (or (<= main_n 48) (<= main_i 160)) (or (<= 160 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30976#(and (or (<= main_n 48) (<= main_i 164)) (= 23 (select main_a (* 4 main_n))) (or (<= 164 main_i) (< 48 main_n)))} is VALID [2019-02-27 13:04:25,813 INFO L273 TraceCheckUtils]: 82: Hoare triple {30976#(and (or (<= main_n 48) (<= main_i 164)) (= 23 (select main_a (* 4 main_n))) (or (<= 164 main_i) (< 48 main_n)))} assume i <= n * 4; {30976#(and (or (<= main_n 48) (<= main_i 164)) (= 23 (select main_a (* 4 main_n))) (or (<= 164 main_i) (< 48 main_n)))} is VALID [2019-02-27 13:04:25,814 INFO L273 TraceCheckUtils]: 83: Hoare triple {30976#(and (or (<= main_n 48) (<= main_i 164)) (= 23 (select main_a (* 4 main_n))) (or (<= 164 main_i) (< 48 main_n)))} assume a[i] != 23;i := i + 4; {30977#(and (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 168)))} is VALID [2019-02-27 13:04:25,815 INFO L273 TraceCheckUtils]: 84: Hoare triple {30977#(and (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 168)))} assume i <= n * 4; {30977#(and (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 168)))} is VALID [2019-02-27 13:04:25,816 INFO L273 TraceCheckUtils]: 85: Hoare triple {30977#(and (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 168)))} assume a[i] != 23;i := i + 4; {30978#(and (or (<= 172 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 172)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,816 INFO L273 TraceCheckUtils]: 86: Hoare triple {30978#(and (or (<= 172 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 172)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30978#(and (or (<= 172 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 172)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,817 INFO L273 TraceCheckUtils]: 87: Hoare triple {30978#(and (or (<= 172 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 172)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30979#(and (or (<= 176 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,818 INFO L273 TraceCheckUtils]: 88: Hoare triple {30979#(and (or (<= 176 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30979#(and (or (<= 176 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,819 INFO L273 TraceCheckUtils]: 89: Hoare triple {30979#(and (or (<= 176 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30980#(and (or (<= main_n 48) (<= main_i 180)) (or (< 48 main_n) (<= 180 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,820 INFO L273 TraceCheckUtils]: 90: Hoare triple {30980#(and (or (<= main_n 48) (<= main_i 180)) (or (< 48 main_n) (<= 180 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30980#(and (or (<= main_n 48) (<= main_i 180)) (or (< 48 main_n) (<= 180 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,821 INFO L273 TraceCheckUtils]: 91: Hoare triple {30980#(and (or (<= main_n 48) (<= main_i 180)) (or (< 48 main_n) (<= 180 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30981#(and (or (<= main_n 48) (<= main_i 184)) (or (< 48 main_n) (<= 184 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,822 INFO L273 TraceCheckUtils]: 92: Hoare triple {30981#(and (or (<= main_n 48) (<= main_i 184)) (or (< 48 main_n) (<= 184 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30981#(and (or (<= main_n 48) (<= main_i 184)) (or (< 48 main_n) (<= 184 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,823 INFO L273 TraceCheckUtils]: 93: Hoare triple {30981#(and (or (<= main_n 48) (<= main_i 184)) (or (< 48 main_n) (<= 184 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30982#(and (or (< 48 main_n) (<= 188 main_i)) (or (<= main_i 188) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,824 INFO L273 TraceCheckUtils]: 94: Hoare triple {30982#(and (or (< 48 main_n) (<= 188 main_i)) (or (<= main_i 188) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30982#(and (or (< 48 main_n) (<= 188 main_i)) (or (<= main_i 188) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:25,825 INFO L273 TraceCheckUtils]: 95: Hoare triple {30982#(and (or (< 48 main_n) (<= 188 main_i)) (or (<= main_i 188) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30983#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 48) (<= main_i 192)) (or (<= (* 4 main_n) main_i) (< 48 main_n)))))} is VALID [2019-02-27 13:04:25,826 INFO L273 TraceCheckUtils]: 96: Hoare triple {30983#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 48) (<= main_i 192)) (or (<= (* 4 main_n) main_i) (< 48 main_n)))))} assume i <= n * 4; {30984#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 192) (< 48 main_n))))} is VALID [2019-02-27 13:04:25,827 INFO L273 TraceCheckUtils]: 97: Hoare triple {30984#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 192) (< 48 main_n))))} assume a[i] != 23;i := i + 4; {30985#(and (< 48 main_n) (<= main_i 196))} is VALID [2019-02-27 13:04:25,828 INFO L273 TraceCheckUtils]: 98: Hoare triple {30985#(and (< 48 main_n) (<= main_i 196))} assume !(i <= n * 4); {30934#false} is VALID [2019-02-27 13:04:25,868 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 0 proven. 2352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:04:25,868 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 13:04:25,869 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 13:04:25,869 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 13:04:25,869 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 13:04:25,869 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 13:04:25,869 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 13:04:25,878 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-27 13:04:25,878 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-27 13:04:25,905 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-27 13:04:25,905 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 13:04:25,907 WARN L254 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 103 conjunts are in the unsatisfiable core [2019-02-27 13:04:25,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:04:25,923 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 13:04:25,939 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 13:04:25,941 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 13:04:25,948 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 13:04:25,948 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 13:04:25,950 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 13:04:25,950 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_52]. (and (= main_a (store v_main_a_52 (* 4 main_n) 23)) (= main_i 0)) [2019-02-27 13:04:25,951 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 13:04:29,963 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 13:04:29,968 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 13:04:29,981 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 13:04:29,982 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 13:04:29,983 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 13:04:29,983 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 192 .cse0) (= 23 (select main_a .cse0)) (not (= 23 (select main_a 192))) (<= main_i 196))) [2019-02-27 13:04:29,984 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 192 .cse0)) (<= 192 .cse0) (<= main_i 196))) [2019-02-27 13:04:30,040 INFO L273 TraceCheckUtils]: 0: Hoare triple {30933#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {30989#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,040 INFO L273 TraceCheckUtils]: 1: Hoare triple {30989#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30993#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 13:04:30,041 INFO L273 TraceCheckUtils]: 2: Hoare triple {30993#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {30993#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 13:04:30,041 INFO L273 TraceCheckUtils]: 3: Hoare triple {30993#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {31000#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,042 INFO L273 TraceCheckUtils]: 4: Hoare triple {31000#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31000#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,042 INFO L273 TraceCheckUtils]: 5: Hoare triple {31000#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31007#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 13:04:30,043 INFO L273 TraceCheckUtils]: 6: Hoare triple {31007#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {31007#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 13:04:30,044 INFO L273 TraceCheckUtils]: 7: Hoare triple {31007#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {31014#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,044 INFO L273 TraceCheckUtils]: 8: Hoare triple {31014#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31014#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,045 INFO L273 TraceCheckUtils]: 9: Hoare triple {31014#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31021#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,046 INFO L273 TraceCheckUtils]: 10: Hoare triple {31021#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31021#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,046 INFO L273 TraceCheckUtils]: 11: Hoare triple {31021#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31028#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,047 INFO L273 TraceCheckUtils]: 12: Hoare triple {31028#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31028#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,048 INFO L273 TraceCheckUtils]: 13: Hoare triple {31028#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31035#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,048 INFO L273 TraceCheckUtils]: 14: Hoare triple {31035#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31035#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,049 INFO L273 TraceCheckUtils]: 15: Hoare triple {31035#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31042#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,050 INFO L273 TraceCheckUtils]: 16: Hoare triple {31042#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31042#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,051 INFO L273 TraceCheckUtils]: 17: Hoare triple {31042#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31049#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,051 INFO L273 TraceCheckUtils]: 18: Hoare triple {31049#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31049#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,052 INFO L273 TraceCheckUtils]: 19: Hoare triple {31049#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31056#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,053 INFO L273 TraceCheckUtils]: 20: Hoare triple {31056#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31056#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,053 INFO L273 TraceCheckUtils]: 21: Hoare triple {31056#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31063#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,054 INFO L273 TraceCheckUtils]: 22: Hoare triple {31063#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31063#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,055 INFO L273 TraceCheckUtils]: 23: Hoare triple {31063#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31070#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,055 INFO L273 TraceCheckUtils]: 24: Hoare triple {31070#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31070#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,056 INFO L273 TraceCheckUtils]: 25: Hoare triple {31070#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31077#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,057 INFO L273 TraceCheckUtils]: 26: Hoare triple {31077#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31077#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,057 INFO L273 TraceCheckUtils]: 27: Hoare triple {31077#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31084#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,058 INFO L273 TraceCheckUtils]: 28: Hoare triple {31084#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31084#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,059 INFO L273 TraceCheckUtils]: 29: Hoare triple {31084#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31091#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,060 INFO L273 TraceCheckUtils]: 30: Hoare triple {31091#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31091#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,060 INFO L273 TraceCheckUtils]: 31: Hoare triple {31091#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31098#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,061 INFO L273 TraceCheckUtils]: 32: Hoare triple {31098#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31098#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,062 INFO L273 TraceCheckUtils]: 33: Hoare triple {31098#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31105#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,062 INFO L273 TraceCheckUtils]: 34: Hoare triple {31105#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31105#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,063 INFO L273 TraceCheckUtils]: 35: Hoare triple {31105#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31112#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,064 INFO L273 TraceCheckUtils]: 36: Hoare triple {31112#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31112#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,064 INFO L273 TraceCheckUtils]: 37: Hoare triple {31112#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31119#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,065 INFO L273 TraceCheckUtils]: 38: Hoare triple {31119#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31119#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,066 INFO L273 TraceCheckUtils]: 39: Hoare triple {31119#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31126#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 13:04:30,066 INFO L273 TraceCheckUtils]: 40: Hoare triple {31126#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {31126#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 13:04:30,067 INFO L273 TraceCheckUtils]: 41: Hoare triple {31126#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {31133#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,068 INFO L273 TraceCheckUtils]: 42: Hoare triple {31133#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31133#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,069 INFO L273 TraceCheckUtils]: 43: Hoare triple {31133#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31140#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,069 INFO L273 TraceCheckUtils]: 44: Hoare triple {31140#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31140#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,070 INFO L273 TraceCheckUtils]: 45: Hoare triple {31140#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31147#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,071 INFO L273 TraceCheckUtils]: 46: Hoare triple {31147#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31147#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,072 INFO L273 TraceCheckUtils]: 47: Hoare triple {31147#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31154#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,072 INFO L273 TraceCheckUtils]: 48: Hoare triple {31154#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31154#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,073 INFO L273 TraceCheckUtils]: 49: Hoare triple {31154#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31161#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,074 INFO L273 TraceCheckUtils]: 50: Hoare triple {31161#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31161#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,074 INFO L273 TraceCheckUtils]: 51: Hoare triple {31161#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31168#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,075 INFO L273 TraceCheckUtils]: 52: Hoare triple {31168#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31168#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,076 INFO L273 TraceCheckUtils]: 53: Hoare triple {31168#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31175#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,076 INFO L273 TraceCheckUtils]: 54: Hoare triple {31175#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31175#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,077 INFO L273 TraceCheckUtils]: 55: Hoare triple {31175#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31182#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,078 INFO L273 TraceCheckUtils]: 56: Hoare triple {31182#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31182#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,079 INFO L273 TraceCheckUtils]: 57: Hoare triple {31182#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31189#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,079 INFO L273 TraceCheckUtils]: 58: Hoare triple {31189#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31189#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,080 INFO L273 TraceCheckUtils]: 59: Hoare triple {31189#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31196#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,081 INFO L273 TraceCheckUtils]: 60: Hoare triple {31196#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31196#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,081 INFO L273 TraceCheckUtils]: 61: Hoare triple {31196#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31203#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,082 INFO L273 TraceCheckUtils]: 62: Hoare triple {31203#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31203#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,083 INFO L273 TraceCheckUtils]: 63: Hoare triple {31203#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31210#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,084 INFO L273 TraceCheckUtils]: 64: Hoare triple {31210#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31210#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,084 INFO L273 TraceCheckUtils]: 65: Hoare triple {31210#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31217#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,085 INFO L273 TraceCheckUtils]: 66: Hoare triple {31217#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31217#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,086 INFO L273 TraceCheckUtils]: 67: Hoare triple {31217#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31224#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,086 INFO L273 TraceCheckUtils]: 68: Hoare triple {31224#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31224#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,087 INFO L273 TraceCheckUtils]: 69: Hoare triple {31224#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31231#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 13:04:30,088 INFO L273 TraceCheckUtils]: 70: Hoare triple {31231#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {31231#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 13:04:30,089 INFO L273 TraceCheckUtils]: 71: Hoare triple {31231#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {31238#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,090 INFO L273 TraceCheckUtils]: 72: Hoare triple {31238#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31238#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,090 INFO L273 TraceCheckUtils]: 73: Hoare triple {31238#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31245#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,091 INFO L273 TraceCheckUtils]: 74: Hoare triple {31245#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31245#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,092 INFO L273 TraceCheckUtils]: 75: Hoare triple {31245#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31252#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,092 INFO L273 TraceCheckUtils]: 76: Hoare triple {31252#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31252#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,093 INFO L273 TraceCheckUtils]: 77: Hoare triple {31252#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31259#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,094 INFO L273 TraceCheckUtils]: 78: Hoare triple {31259#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31259#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,095 INFO L273 TraceCheckUtils]: 79: Hoare triple {31259#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31266#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,095 INFO L273 TraceCheckUtils]: 80: Hoare triple {31266#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31266#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,096 INFO L273 TraceCheckUtils]: 81: Hoare triple {31266#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31273#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-02-27 13:04:30,097 INFO L273 TraceCheckUtils]: 82: Hoare triple {31273#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {31273#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-02-27 13:04:30,097 INFO L273 TraceCheckUtils]: 83: Hoare triple {31273#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {31280#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,098 INFO L273 TraceCheckUtils]: 84: Hoare triple {31280#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31280#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,099 INFO L273 TraceCheckUtils]: 85: Hoare triple {31280#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31287#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,099 INFO L273 TraceCheckUtils]: 86: Hoare triple {31287#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31287#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,100 INFO L273 TraceCheckUtils]: 87: Hoare triple {31287#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31294#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,101 INFO L273 TraceCheckUtils]: 88: Hoare triple {31294#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31294#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,102 INFO L273 TraceCheckUtils]: 89: Hoare triple {31294#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31301#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,102 INFO L273 TraceCheckUtils]: 90: Hoare triple {31301#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31301#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,103 INFO L273 TraceCheckUtils]: 91: Hoare triple {31301#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31308#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,104 INFO L273 TraceCheckUtils]: 92: Hoare triple {31308#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31308#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,104 INFO L273 TraceCheckUtils]: 93: Hoare triple {31308#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31315#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,105 INFO L273 TraceCheckUtils]: 94: Hoare triple {31315#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31315#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,106 INFO L273 TraceCheckUtils]: 95: Hoare triple {31315#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31322#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,107 INFO L273 TraceCheckUtils]: 96: Hoare triple {31322#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31326#(and (= main_i 192) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:04:30,107 INFO L273 TraceCheckUtils]: 97: Hoare triple {31326#(and (= main_i 192) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30985#(and (< 48 main_n) (<= main_i 196))} is VALID [2019-02-27 13:04:30,108 INFO L273 TraceCheckUtils]: 98: Hoare triple {30985#(and (< 48 main_n) (<= main_i 196))} assume !(i <= n * 4); {30934#false} is VALID [2019-02-27 13:04:30,130 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 0 proven. 2352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:04:30,130 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 13:04:37,332 INFO L273 TraceCheckUtils]: 98: Hoare triple {31333#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {30934#false} is VALID [2019-02-27 13:04:37,333 INFO L273 TraceCheckUtils]: 97: Hoare triple {31337#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {31333#(<= main_i (* 4 main_n))} is VALID [2019-02-27 13:04:37,334 INFO L273 TraceCheckUtils]: 96: Hoare triple {31341#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {31337#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:04:37,334 INFO L273 TraceCheckUtils]: 95: Hoare triple {31345#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {31341#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:04:37,335 INFO L273 TraceCheckUtils]: 94: Hoare triple {31345#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {31345#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:04:37,335 INFO L273 TraceCheckUtils]: 93: Hoare triple {31352#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {31345#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:04:37,336 INFO L273 TraceCheckUtils]: 92: Hoare triple {31352#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {31352#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:04:37,337 INFO L273 TraceCheckUtils]: 91: Hoare triple {31359#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {31352#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:04:37,337 INFO L273 TraceCheckUtils]: 90: Hoare triple {31359#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {31359#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:04:37,338 INFO L273 TraceCheckUtils]: 89: Hoare triple {31366#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {31359#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:04:37,339 INFO L273 TraceCheckUtils]: 88: Hoare triple {31366#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {31366#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:04:37,340 INFO L273 TraceCheckUtils]: 87: Hoare triple {31373#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31366#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:04:37,341 INFO L273 TraceCheckUtils]: 86: Hoare triple {31373#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {31373#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:04:37,342 INFO L273 TraceCheckUtils]: 85: Hoare triple {31380#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {31373#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:04:37,342 INFO L273 TraceCheckUtils]: 84: Hoare triple {31380#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {31380#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:04:37,343 INFO L273 TraceCheckUtils]: 83: Hoare triple {31387#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31380#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:04:37,344 INFO L273 TraceCheckUtils]: 82: Hoare triple {31387#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {31387#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:04:37,345 INFO L273 TraceCheckUtils]: 81: Hoare triple {31394#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31387#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:04:37,345 INFO L273 TraceCheckUtils]: 80: Hoare triple {31394#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {31394#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:04:37,346 INFO L273 TraceCheckUtils]: 79: Hoare triple {31401#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31394#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:04:37,347 INFO L273 TraceCheckUtils]: 78: Hoare triple {31401#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {31401#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:04:37,348 INFO L273 TraceCheckUtils]: 77: Hoare triple {31408#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {31401#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:04:37,348 INFO L273 TraceCheckUtils]: 76: Hoare triple {31408#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {31408#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:04:37,349 INFO L273 TraceCheckUtils]: 75: Hoare triple {31415#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31408#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:04:37,350 INFO L273 TraceCheckUtils]: 74: Hoare triple {31415#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {31415#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:04:37,351 INFO L273 TraceCheckUtils]: 73: Hoare triple {31422#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31415#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:04:37,351 INFO L273 TraceCheckUtils]: 72: Hoare triple {31422#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {31422#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:04:37,352 INFO L273 TraceCheckUtils]: 71: Hoare triple {31429#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {31422#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:04:37,353 INFO L273 TraceCheckUtils]: 70: Hoare triple {31429#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {31429#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:04:37,354 INFO L273 TraceCheckUtils]: 69: Hoare triple {31436#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31429#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:04:37,355 INFO L273 TraceCheckUtils]: 68: Hoare triple {31436#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {31436#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:04:37,356 INFO L273 TraceCheckUtils]: 67: Hoare triple {31443#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {31436#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:04:37,356 INFO L273 TraceCheckUtils]: 66: Hoare triple {31443#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {31443#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:04:37,357 INFO L273 TraceCheckUtils]: 65: Hoare triple {31450#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {31443#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:04:37,358 INFO L273 TraceCheckUtils]: 64: Hoare triple {31450#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {31450#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:04:37,359 INFO L273 TraceCheckUtils]: 63: Hoare triple {31457#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {31450#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:04:37,359 INFO L273 TraceCheckUtils]: 62: Hoare triple {31457#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {31457#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:04:37,360 INFO L273 TraceCheckUtils]: 61: Hoare triple {31464#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {31457#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:04:37,361 INFO L273 TraceCheckUtils]: 60: Hoare triple {31464#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {31464#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:04:37,362 INFO L273 TraceCheckUtils]: 59: Hoare triple {31471#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {31464#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:04:37,362 INFO L273 TraceCheckUtils]: 58: Hoare triple {31471#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {31471#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:04:37,364 INFO L273 TraceCheckUtils]: 57: Hoare triple {31478#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {31471#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:04:37,364 INFO L273 TraceCheckUtils]: 56: Hoare triple {31478#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {31478#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:04:37,365 INFO L273 TraceCheckUtils]: 55: Hoare triple {31485#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31478#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:04:37,366 INFO L273 TraceCheckUtils]: 54: Hoare triple {31485#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {31485#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:04:37,367 INFO L273 TraceCheckUtils]: 53: Hoare triple {31492#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31485#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:04:37,367 INFO L273 TraceCheckUtils]: 52: Hoare triple {31492#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {31492#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:04:37,368 INFO L273 TraceCheckUtils]: 51: Hoare triple {31499#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31492#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:04:37,369 INFO L273 TraceCheckUtils]: 50: Hoare triple {31499#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {31499#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:04:37,370 INFO L273 TraceCheckUtils]: 49: Hoare triple {31506#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {31499#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:04:37,370 INFO L273 TraceCheckUtils]: 48: Hoare triple {31506#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {31506#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:04:37,371 INFO L273 TraceCheckUtils]: 47: Hoare triple {31513#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31506#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:04:37,372 INFO L273 TraceCheckUtils]: 46: Hoare triple {31513#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {31513#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:04:37,373 INFO L273 TraceCheckUtils]: 45: Hoare triple {31520#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {31513#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:04:37,373 INFO L273 TraceCheckUtils]: 44: Hoare triple {31520#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {31520#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:04:37,374 INFO L273 TraceCheckUtils]: 43: Hoare triple {31527#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {31520#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:04:37,375 INFO L273 TraceCheckUtils]: 42: Hoare triple {31527#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {31527#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:04:37,376 INFO L273 TraceCheckUtils]: 41: Hoare triple {31534#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {31527#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:04:37,377 INFO L273 TraceCheckUtils]: 40: Hoare triple {31534#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {31534#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:04:37,378 INFO L273 TraceCheckUtils]: 39: Hoare triple {31541#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31534#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:04:37,378 INFO L273 TraceCheckUtils]: 38: Hoare triple {31541#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {31541#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:04:37,379 INFO L273 TraceCheckUtils]: 37: Hoare triple {31548#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31541#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:04:37,380 INFO L273 TraceCheckUtils]: 36: Hoare triple {31548#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {31548#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:04:37,381 INFO L273 TraceCheckUtils]: 35: Hoare triple {31555#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {31548#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:04:37,381 INFO L273 TraceCheckUtils]: 34: Hoare triple {31555#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {31555#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:04:37,382 INFO L273 TraceCheckUtils]: 33: Hoare triple {31562#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31555#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:04:37,383 INFO L273 TraceCheckUtils]: 32: Hoare triple {31562#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {31562#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:04:37,384 INFO L273 TraceCheckUtils]: 31: Hoare triple {31569#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {31562#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:04:37,384 INFO L273 TraceCheckUtils]: 30: Hoare triple {31569#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {31569#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:04:37,385 INFO L273 TraceCheckUtils]: 29: Hoare triple {31576#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {31569#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:04:37,386 INFO L273 TraceCheckUtils]: 28: Hoare triple {31576#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {31576#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:04:37,387 INFO L273 TraceCheckUtils]: 27: Hoare triple {31583#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {31576#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:04:37,387 INFO L273 TraceCheckUtils]: 26: Hoare triple {31583#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {31583#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:04:37,388 INFO L273 TraceCheckUtils]: 25: Hoare triple {31590#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {31583#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:04:37,389 INFO L273 TraceCheckUtils]: 24: Hoare triple {31590#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {31590#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:04:37,390 INFO L273 TraceCheckUtils]: 23: Hoare triple {31597#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {31590#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:04:37,391 INFO L273 TraceCheckUtils]: 22: Hoare triple {31597#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {31597#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-02-27 13:04:37,392 INFO L273 TraceCheckUtils]: 21: Hoare triple {31604#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {31597#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-02-27 13:04:37,392 INFO L273 TraceCheckUtils]: 20: Hoare triple {31604#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {31604#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-02-27 13:04:37,393 INFO L273 TraceCheckUtils]: 19: Hoare triple {31611#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {31604#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-02-27 13:04:37,394 INFO L273 TraceCheckUtils]: 18: Hoare triple {31611#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {31611#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-02-27 13:04:37,395 INFO L273 TraceCheckUtils]: 17: Hoare triple {31618#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {31611#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-02-27 13:04:37,395 INFO L273 TraceCheckUtils]: 16: Hoare triple {31618#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {31618#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-02-27 13:04:37,396 INFO L273 TraceCheckUtils]: 15: Hoare triple {31625#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {31618#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-02-27 13:04:37,397 INFO L273 TraceCheckUtils]: 14: Hoare triple {31625#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {31625#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-02-27 13:04:37,398 INFO L273 TraceCheckUtils]: 13: Hoare triple {31632#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31625#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-02-27 13:04:37,398 INFO L273 TraceCheckUtils]: 12: Hoare triple {31632#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume i <= n * 4; {31632#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-02-27 13:04:37,399 INFO L273 TraceCheckUtils]: 11: Hoare triple {31639#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31632#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-02-27 13:04:37,400 INFO L273 TraceCheckUtils]: 10: Hoare triple {31639#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume i <= n * 4; {31639#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-02-27 13:04:37,401 INFO L273 TraceCheckUtils]: 9: Hoare triple {31646#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume a[i] != 23;i := i + 4; {31639#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-02-27 13:04:37,402 INFO L273 TraceCheckUtils]: 8: Hoare triple {31646#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume i <= n * 4; {31646#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-02-27 13:04:37,403 INFO L273 TraceCheckUtils]: 7: Hoare triple {31653#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume a[i] != 23;i := i + 4; {31646#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-02-27 13:04:37,403 INFO L273 TraceCheckUtils]: 6: Hoare triple {31653#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume i <= n * 4; {31653#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-02-27 13:04:37,404 INFO L273 TraceCheckUtils]: 5: Hoare triple {31660#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume a[i] != 23;i := i + 4; {31653#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-02-27 13:04:37,405 INFO L273 TraceCheckUtils]: 4: Hoare triple {31660#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume i <= n * 4; {31660#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2019-02-27 13:04:37,406 INFO L273 TraceCheckUtils]: 3: Hoare triple {31667#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume a[i] != 23;i := i + 4; {31660#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2019-02-27 13:04:37,406 INFO L273 TraceCheckUtils]: 2: Hoare triple {31667#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume i <= n * 4; {31667#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2019-02-27 13:04:37,407 INFO L273 TraceCheckUtils]: 1: Hoare triple {31674#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} assume a[i] != 23;i := i + 4; {31667#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2019-02-27 13:04:37,408 INFO L273 TraceCheckUtils]: 0: Hoare triple {30933#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {31674#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} is VALID [2019-02-27 13:04:37,443 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 0 proven. 2352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:04:37,462 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 13:04:37,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51, 51] total 152 [2019-02-27 13:04:37,462 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 13:04:37,463 INFO L78 Accepts]: Start accepts. Automaton has 103 states. Word has length 99 [2019-02-27 13:04:37,463 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 13:04:37,463 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 103 states. [2019-02-27 13:04:37,703 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 197 edges. 197 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 13:04:37,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 103 states [2019-02-27 13:04:37,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2019-02-27 13:04:37,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2864, Invalid=20698, Unknown=0, NotChecked=0, Total=23562 [2019-02-27 13:04:37,705 INFO L87 Difference]: Start difference. First operand 100 states and 100 transitions. Second operand 103 states. [2019-02-27 13:04:57,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:04:57,395 INFO L93 Difference]: Finished difference Result 104 states and 104 transitions. [2019-02-27 13:04:57,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2019-02-27 13:04:57,395 INFO L78 Accepts]: Start accepts. Automaton has 103 states. Word has length 99 [2019-02-27 13:04:57,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 13:04:57,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-02-27 13:04:57,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 104 transitions. [2019-02-27 13:04:57,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-02-27 13:04:57,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 104 transitions. [2019-02-27 13:04:57,397 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 53 states and 104 transitions. [2019-02-27 13:04:57,519 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 104 edges. 104 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 13:04:57,521 INFO L225 Difference]: With dead ends: 104 [2019-02-27 13:04:57,521 INFO L226 Difference]: Without dead ends: 103 [2019-02-27 13:04:57,522 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5300 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=2864, Invalid=20698, Unknown=0, NotChecked=0, Total=23562 [2019-02-27 13:04:57,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2019-02-27 13:04:57,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 102. [2019-02-27 13:04:57,626 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 13:04:57,626 INFO L82 GeneralOperation]: Start isEquivalent. First operand 103 states. Second operand 102 states. [2019-02-27 13:04:57,626 INFO L74 IsIncluded]: Start isIncluded. First operand 103 states. Second operand 102 states. [2019-02-27 13:04:57,627 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 102 states. [2019-02-27 13:04:57,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:04:57,628 INFO L93 Difference]: Finished difference Result 103 states and 103 transitions. [2019-02-27 13:04:57,628 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 103 transitions. [2019-02-27 13:04:57,629 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 13:04:57,629 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 13:04:57,629 INFO L74 IsIncluded]: Start isIncluded. First operand 102 states. Second operand 103 states. [2019-02-27 13:04:57,629 INFO L87 Difference]: Start difference. First operand 102 states. Second operand 103 states. [2019-02-27 13:04:57,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:04:57,630 INFO L93 Difference]: Finished difference Result 103 states and 103 transitions. [2019-02-27 13:04:57,630 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 103 transitions. [2019-02-27 13:04:57,630 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 13:04:57,630 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 13:04:57,630 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 13:04:57,630 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 13:04:57,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-02-27 13:04:57,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 102 transitions. [2019-02-27 13:04:57,631 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 102 transitions. Word has length 99 [2019-02-27 13:04:57,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 13:04:57,632 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 102 transitions. [2019-02-27 13:04:57,632 INFO L481 AbstractCegarLoop]: Interpolant automaton has 103 states. [2019-02-27 13:04:57,632 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 102 transitions. [2019-02-27 13:04:57,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-02-27 13:04:57,632 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 13:04:57,632 INFO L402 BasicCegarLoop]: trace histogram [50, 49, 1, 1] [2019-02-27 13:04:57,632 INFO L423 AbstractCegarLoop]: === Iteration 50 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 13:04:57,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 13:04:57,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1416429954, now seen corresponding path program 49 times [2019-02-27 13:04:57,633 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 13:04:57,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 13:04:57,633 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 13:04:57,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 13:04:57,634 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 13:04:57,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:04:58,099 WARN L181 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-02-27 13:04:58,531 WARN L181 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2019-02-27 13:05:01,235 INFO L273 TraceCheckUtils]: 0: Hoare triple {32190#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {32192#(and (or (<= 0 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,236 INFO L273 TraceCheckUtils]: 1: Hoare triple {32192#(and (or (<= 0 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32193#(and (or (<= main_n 49) (<= main_i 4)) (or (<= 4 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,237 INFO L273 TraceCheckUtils]: 2: Hoare triple {32193#(and (or (<= main_n 49) (<= main_i 4)) (or (<= 4 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32193#(and (or (<= main_n 49) (<= main_i 4)) (or (<= 4 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,238 INFO L273 TraceCheckUtils]: 3: Hoare triple {32193#(and (or (<= main_n 49) (<= main_i 4)) (or (<= 4 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32194#(and (= 23 (select main_a (* 4 main_n))) (or (<= 8 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 8)))} is VALID [2019-02-27 13:05:01,239 INFO L273 TraceCheckUtils]: 4: Hoare triple {32194#(and (= 23 (select main_a (* 4 main_n))) (or (<= 8 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 8)))} assume i <= n * 4; {32194#(and (= 23 (select main_a (* 4 main_n))) (or (<= 8 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 8)))} is VALID [2019-02-27 13:05:01,240 INFO L273 TraceCheckUtils]: 5: Hoare triple {32194#(and (= 23 (select main_a (* 4 main_n))) (or (<= 8 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 8)))} assume a[i] != 23;i := i + 4; {32195#(and (or (<= main_n 49) (<= main_i 12)) (or (<= 12 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,240 INFO L273 TraceCheckUtils]: 6: Hoare triple {32195#(and (or (<= main_n 49) (<= main_i 12)) (or (<= 12 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32195#(and (or (<= main_n 49) (<= main_i 12)) (or (<= 12 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,241 INFO L273 TraceCheckUtils]: 7: Hoare triple {32195#(and (or (<= main_n 49) (<= main_i 12)) (or (<= 12 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32196#(and (or (<= 16 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,242 INFO L273 TraceCheckUtils]: 8: Hoare triple {32196#(and (or (<= 16 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32196#(and (or (<= 16 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,243 INFO L273 TraceCheckUtils]: 9: Hoare triple {32196#(and (or (<= 16 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32197#(and (or (<= 20 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,244 INFO L273 TraceCheckUtils]: 10: Hoare triple {32197#(and (or (<= 20 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32197#(and (or (<= 20 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,245 INFO L273 TraceCheckUtils]: 11: Hoare triple {32197#(and (or (<= 20 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32198#(and (or (<= 24 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,246 INFO L273 TraceCheckUtils]: 12: Hoare triple {32198#(and (or (<= 24 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32198#(and (or (<= 24 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,247 INFO L273 TraceCheckUtils]: 13: Hoare triple {32198#(and (or (<= 24 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32199#(and (or (<= 28 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,247 INFO L273 TraceCheckUtils]: 14: Hoare triple {32199#(and (or (<= 28 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32199#(and (or (<= 28 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,248 INFO L273 TraceCheckUtils]: 15: Hoare triple {32199#(and (or (<= 28 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32200#(and (or (<= main_i 32) (<= main_n 49)) (or (<= 32 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,249 INFO L273 TraceCheckUtils]: 16: Hoare triple {32200#(and (or (<= main_i 32) (<= main_n 49)) (or (<= 32 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32200#(and (or (<= main_i 32) (<= main_n 49)) (or (<= 32 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,250 INFO L273 TraceCheckUtils]: 17: Hoare triple {32200#(and (or (<= main_i 32) (<= main_n 49)) (or (<= 32 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32201#(and (or (<= main_i 36) (<= main_n 49)) (or (< 49 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,251 INFO L273 TraceCheckUtils]: 18: Hoare triple {32201#(and (or (<= main_i 36) (<= main_n 49)) (or (< 49 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32201#(and (or (<= main_i 36) (<= main_n 49)) (or (< 49 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,252 INFO L273 TraceCheckUtils]: 19: Hoare triple {32201#(and (or (<= main_i 36) (<= main_n 49)) (or (< 49 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32202#(and (or (<= 40 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,253 INFO L273 TraceCheckUtils]: 20: Hoare triple {32202#(and (or (<= 40 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32202#(and (or (<= 40 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,254 INFO L273 TraceCheckUtils]: 21: Hoare triple {32202#(and (or (<= 40 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32203#(and (or (<= 44 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,255 INFO L273 TraceCheckUtils]: 22: Hoare triple {32203#(and (or (<= 44 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32203#(and (or (<= 44 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,256 INFO L273 TraceCheckUtils]: 23: Hoare triple {32203#(and (or (<= 44 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32204#(and (or (<= main_n 49) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 49 main_n)))} is VALID [2019-02-27 13:05:01,256 INFO L273 TraceCheckUtils]: 24: Hoare triple {32204#(and (or (<= main_n 49) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 49 main_n)))} assume i <= n * 4; {32204#(and (or (<= main_n 49) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 49 main_n)))} is VALID [2019-02-27 13:05:01,258 INFO L273 TraceCheckUtils]: 25: Hoare triple {32204#(and (or (<= main_n 49) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 49 main_n)))} assume a[i] != 23;i := i + 4; {32205#(and (or (<= 52 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,258 INFO L273 TraceCheckUtils]: 26: Hoare triple {32205#(and (or (<= 52 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32205#(and (or (<= 52 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,259 INFO L273 TraceCheckUtils]: 27: Hoare triple {32205#(and (or (<= 52 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32206#(and (or (<= main_n 49) (<= main_i 56)) (or (<= 56 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,260 INFO L273 TraceCheckUtils]: 28: Hoare triple {32206#(and (or (<= main_n 49) (<= main_i 56)) (or (<= 56 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32206#(and (or (<= main_n 49) (<= main_i 56)) (or (<= 56 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,261 INFO L273 TraceCheckUtils]: 29: Hoare triple {32206#(and (or (<= main_n 49) (<= main_i 56)) (or (<= 56 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32207#(and (or (<= main_n 49) (<= main_i 60)) (or (<= 60 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,262 INFO L273 TraceCheckUtils]: 30: Hoare triple {32207#(and (or (<= main_n 49) (<= main_i 60)) (or (<= 60 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32207#(and (or (<= main_n 49) (<= main_i 60)) (or (<= 60 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,263 INFO L273 TraceCheckUtils]: 31: Hoare triple {32207#(and (or (<= main_n 49) (<= main_i 60)) (or (<= 60 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32208#(and (or (<= main_n 49) (<= main_i 64)) (or (<= 64 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,264 INFO L273 TraceCheckUtils]: 32: Hoare triple {32208#(and (or (<= main_n 49) (<= main_i 64)) (or (<= 64 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32208#(and (or (<= main_n 49) (<= main_i 64)) (or (<= 64 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,265 INFO L273 TraceCheckUtils]: 33: Hoare triple {32208#(and (or (<= main_n 49) (<= main_i 64)) (or (<= 64 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32209#(and (or (<= 68 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 68)))} is VALID [2019-02-27 13:05:01,266 INFO L273 TraceCheckUtils]: 34: Hoare triple {32209#(and (or (<= 68 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 68)))} assume i <= n * 4; {32209#(and (or (<= 68 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 68)))} is VALID [2019-02-27 13:05:01,267 INFO L273 TraceCheckUtils]: 35: Hoare triple {32209#(and (or (<= 68 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 68)))} assume a[i] != 23;i := i + 4; {32210#(and (or (<= main_n 49) (<= main_i 72)) (or (<= 72 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,268 INFO L273 TraceCheckUtils]: 36: Hoare triple {32210#(and (or (<= main_n 49) (<= main_i 72)) (or (<= 72 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32210#(and (or (<= main_n 49) (<= main_i 72)) (or (<= 72 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,269 INFO L273 TraceCheckUtils]: 37: Hoare triple {32210#(and (or (<= main_n 49) (<= main_i 72)) (or (<= 72 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32211#(and (or (<= 76 main_i) (< 49 main_n)) (or (<= main_i 76) (<= main_n 49)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,270 INFO L273 TraceCheckUtils]: 38: Hoare triple {32211#(and (or (<= 76 main_i) (< 49 main_n)) (or (<= main_i 76) (<= main_n 49)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32211#(and (or (<= 76 main_i) (< 49 main_n)) (or (<= main_i 76) (<= main_n 49)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,271 INFO L273 TraceCheckUtils]: 39: Hoare triple {32211#(and (or (<= 76 main_i) (< 49 main_n)) (or (<= main_i 76) (<= main_n 49)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32212#(and (or (<= 80 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,271 INFO L273 TraceCheckUtils]: 40: Hoare triple {32212#(and (or (<= 80 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32212#(and (or (<= 80 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,273 INFO L273 TraceCheckUtils]: 41: Hoare triple {32212#(and (or (<= 80 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32213#(and (or (<= main_n 49) (<= main_i 84)) (or (< 49 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,273 INFO L273 TraceCheckUtils]: 42: Hoare triple {32213#(and (or (<= main_n 49) (<= main_i 84)) (or (< 49 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32213#(and (or (<= main_n 49) (<= main_i 84)) (or (< 49 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,274 INFO L273 TraceCheckUtils]: 43: Hoare triple {32213#(and (or (<= main_n 49) (<= main_i 84)) (or (< 49 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32214#(and (or (<= 88 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 88)))} is VALID [2019-02-27 13:05:01,275 INFO L273 TraceCheckUtils]: 44: Hoare triple {32214#(and (or (<= 88 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 88)))} assume i <= n * 4; {32214#(and (or (<= 88 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 88)))} is VALID [2019-02-27 13:05:01,276 INFO L273 TraceCheckUtils]: 45: Hoare triple {32214#(and (or (<= 88 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 88)))} assume a[i] != 23;i := i + 4; {32215#(and (or (<= 92 main_i) (< 49 main_n)) (or (<= main_i 92) (<= main_n 49)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,277 INFO L273 TraceCheckUtils]: 46: Hoare triple {32215#(and (or (<= 92 main_i) (< 49 main_n)) (or (<= main_i 92) (<= main_n 49)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32215#(and (or (<= 92 main_i) (< 49 main_n)) (or (<= main_i 92) (<= main_n 49)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,278 INFO L273 TraceCheckUtils]: 47: Hoare triple {32215#(and (or (<= 92 main_i) (< 49 main_n)) (or (<= main_i 92) (<= main_n 49)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32216#(and (or (<= 96 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 49)))} is VALID [2019-02-27 13:05:01,279 INFO L273 TraceCheckUtils]: 48: Hoare triple {32216#(and (or (<= 96 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 49)))} assume i <= n * 4; {32216#(and (or (<= 96 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 49)))} is VALID [2019-02-27 13:05:01,280 INFO L273 TraceCheckUtils]: 49: Hoare triple {32216#(and (or (<= 96 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 49)))} assume a[i] != 23;i := i + 4; {32217#(and (or (<= 100 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,280 INFO L273 TraceCheckUtils]: 50: Hoare triple {32217#(and (or (<= 100 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32217#(and (or (<= 100 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,281 INFO L273 TraceCheckUtils]: 51: Hoare triple {32217#(and (or (<= 100 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32218#(and (or (<= main_i 104) (<= main_n 49)) (or (<= 104 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,282 INFO L273 TraceCheckUtils]: 52: Hoare triple {32218#(and (or (<= main_i 104) (<= main_n 49)) (or (<= 104 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32218#(and (or (<= main_i 104) (<= main_n 49)) (or (<= 104 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,283 INFO L273 TraceCheckUtils]: 53: Hoare triple {32218#(and (or (<= main_i 104) (<= main_n 49)) (or (<= 104 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32219#(and (or (<= main_n 49) (<= main_i 108)) (or (<= 108 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,284 INFO L273 TraceCheckUtils]: 54: Hoare triple {32219#(and (or (<= main_n 49) (<= main_i 108)) (or (<= 108 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32219#(and (or (<= main_n 49) (<= main_i 108)) (or (<= 108 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,285 INFO L273 TraceCheckUtils]: 55: Hoare triple {32219#(and (or (<= main_n 49) (<= main_i 108)) (or (<= 108 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32220#(and (or (< 49 main_n) (<= 112 main_i)) (or (<= main_n 49) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,286 INFO L273 TraceCheckUtils]: 56: Hoare triple {32220#(and (or (< 49 main_n) (<= 112 main_i)) (or (<= main_n 49) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32220#(and (or (< 49 main_n) (<= 112 main_i)) (or (<= main_n 49) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,287 INFO L273 TraceCheckUtils]: 57: Hoare triple {32220#(and (or (< 49 main_n) (<= 112 main_i)) (or (<= main_n 49) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32221#(and (or (<= 116 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,287 INFO L273 TraceCheckUtils]: 58: Hoare triple {32221#(and (or (<= 116 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32221#(and (or (<= 116 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,288 INFO L273 TraceCheckUtils]: 59: Hoare triple {32221#(and (or (<= 116 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32222#(and (or (<= 120 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,289 INFO L273 TraceCheckUtils]: 60: Hoare triple {32222#(and (or (<= 120 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32222#(and (or (<= 120 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,290 INFO L273 TraceCheckUtils]: 61: Hoare triple {32222#(and (or (<= 120 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32223#(and (or (<= 124 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 124)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,291 INFO L273 TraceCheckUtils]: 62: Hoare triple {32223#(and (or (<= 124 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 124)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32223#(and (or (<= 124 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 124)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,292 INFO L273 TraceCheckUtils]: 63: Hoare triple {32223#(and (or (<= 124 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 124)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32224#(and (or (<= main_n 49) (<= main_i 128)) (or (<= 128 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,293 INFO L273 TraceCheckUtils]: 64: Hoare triple {32224#(and (or (<= main_n 49) (<= main_i 128)) (or (<= 128 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32224#(and (or (<= main_n 49) (<= main_i 128)) (or (<= 128 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,294 INFO L273 TraceCheckUtils]: 65: Hoare triple {32224#(and (or (<= main_n 49) (<= main_i 128)) (or (<= 128 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32225#(and (or (<= 132 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 132)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,294 INFO L273 TraceCheckUtils]: 66: Hoare triple {32225#(and (or (<= 132 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 132)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32225#(and (or (<= 132 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 132)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,295 INFO L273 TraceCheckUtils]: 67: Hoare triple {32225#(and (or (<= 132 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 132)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32226#(and (or (<= main_n 49) (<= main_i 136)) (or (<= 136 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,296 INFO L273 TraceCheckUtils]: 68: Hoare triple {32226#(and (or (<= main_n 49) (<= main_i 136)) (or (<= 136 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32226#(and (or (<= main_n 49) (<= main_i 136)) (or (<= 136 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,297 INFO L273 TraceCheckUtils]: 69: Hoare triple {32226#(and (or (<= main_n 49) (<= main_i 136)) (or (<= 136 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32227#(and (or (<= main_n 49) (<= main_i 140)) (or (< 49 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,298 INFO L273 TraceCheckUtils]: 70: Hoare triple {32227#(and (or (<= main_n 49) (<= main_i 140)) (or (< 49 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32227#(and (or (<= main_n 49) (<= main_i 140)) (or (< 49 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,299 INFO L273 TraceCheckUtils]: 71: Hoare triple {32227#(and (or (<= main_n 49) (<= main_i 140)) (or (< 49 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32228#(and (or (<= main_n 49) (<= main_i 144)) (or (<= 144 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,300 INFO L273 TraceCheckUtils]: 72: Hoare triple {32228#(and (or (<= main_n 49) (<= main_i 144)) (or (<= 144 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32228#(and (or (<= main_n 49) (<= main_i 144)) (or (<= 144 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,301 INFO L273 TraceCheckUtils]: 73: Hoare triple {32228#(and (or (<= main_n 49) (<= main_i 144)) (or (<= 144 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32229#(and (or (<= 148 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 148)))} is VALID [2019-02-27 13:05:01,302 INFO L273 TraceCheckUtils]: 74: Hoare triple {32229#(and (or (<= 148 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 148)))} assume i <= n * 4; {32229#(and (or (<= 148 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 148)))} is VALID [2019-02-27 13:05:01,303 INFO L273 TraceCheckUtils]: 75: Hoare triple {32229#(and (or (<= 148 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 148)))} assume a[i] != 23;i := i + 4; {32230#(and (or (<= 152 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 152)))} is VALID [2019-02-27 13:05:01,303 INFO L273 TraceCheckUtils]: 76: Hoare triple {32230#(and (or (<= 152 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 152)))} assume i <= n * 4; {32230#(and (or (<= 152 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 152)))} is VALID [2019-02-27 13:05:01,304 INFO L273 TraceCheckUtils]: 77: Hoare triple {32230#(and (or (<= 152 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 152)))} assume a[i] != 23;i := i + 4; {32231#(and (or (<= main_n 49) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 49 main_n)))} is VALID [2019-02-27 13:05:01,305 INFO L273 TraceCheckUtils]: 78: Hoare triple {32231#(and (or (<= main_n 49) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 49 main_n)))} assume i <= n * 4; {32231#(and (or (<= main_n 49) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 49 main_n)))} is VALID [2019-02-27 13:05:01,306 INFO L273 TraceCheckUtils]: 79: Hoare triple {32231#(and (or (<= main_n 49) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 49 main_n)))} assume a[i] != 23;i := i + 4; {32232#(and (or (<= main_n 49) (<= main_i 160)) (or (<= 160 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,307 INFO L273 TraceCheckUtils]: 80: Hoare triple {32232#(and (or (<= main_n 49) (<= main_i 160)) (or (<= 160 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32232#(and (or (<= main_n 49) (<= main_i 160)) (or (<= 160 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,308 INFO L273 TraceCheckUtils]: 81: Hoare triple {32232#(and (or (<= main_n 49) (<= main_i 160)) (or (<= 160 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32233#(and (or (<= main_n 49) (<= main_i 164)) (or (<= 164 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,309 INFO L273 TraceCheckUtils]: 82: Hoare triple {32233#(and (or (<= main_n 49) (<= main_i 164)) (or (<= 164 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32233#(and (or (<= main_n 49) (<= main_i 164)) (or (<= 164 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,310 INFO L273 TraceCheckUtils]: 83: Hoare triple {32233#(and (or (<= main_n 49) (<= main_i 164)) (or (<= 164 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32234#(and (or (<= main_n 49) (<= main_i 168)) (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 49 main_n)))} is VALID [2019-02-27 13:05:01,310 INFO L273 TraceCheckUtils]: 84: Hoare triple {32234#(and (or (<= main_n 49) (<= main_i 168)) (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 49 main_n)))} assume i <= n * 4; {32234#(and (or (<= main_n 49) (<= main_i 168)) (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 49 main_n)))} is VALID [2019-02-27 13:05:01,311 INFO L273 TraceCheckUtils]: 85: Hoare triple {32234#(and (or (<= main_n 49) (<= main_i 168)) (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 49 main_n)))} assume a[i] != 23;i := i + 4; {32235#(and (or (<= main_n 49) (<= main_i 172)) (or (<= 172 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,312 INFO L273 TraceCheckUtils]: 86: Hoare triple {32235#(and (or (<= main_n 49) (<= main_i 172)) (or (<= 172 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32235#(and (or (<= main_n 49) (<= main_i 172)) (or (<= 172 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,313 INFO L273 TraceCheckUtils]: 87: Hoare triple {32235#(and (or (<= main_n 49) (<= main_i 172)) (or (<= 172 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32236#(and (or (<= 176 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,314 INFO L273 TraceCheckUtils]: 88: Hoare triple {32236#(and (or (<= 176 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32236#(and (or (<= 176 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,315 INFO L273 TraceCheckUtils]: 89: Hoare triple {32236#(and (or (<= 176 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32237#(and (or (<= 180 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 180)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,316 INFO L273 TraceCheckUtils]: 90: Hoare triple {32237#(and (or (<= 180 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 180)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32237#(and (or (<= 180 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 180)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,317 INFO L273 TraceCheckUtils]: 91: Hoare triple {32237#(and (or (<= 180 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 180)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32238#(and (or (< 49 main_n) (<= 184 main_i)) (or (<= main_n 49) (<= main_i 184)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,318 INFO L273 TraceCheckUtils]: 92: Hoare triple {32238#(and (or (< 49 main_n) (<= 184 main_i)) (or (<= main_n 49) (<= main_i 184)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32238#(and (or (< 49 main_n) (<= 184 main_i)) (or (<= main_n 49) (<= main_i 184)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,319 INFO L273 TraceCheckUtils]: 93: Hoare triple {32238#(and (or (< 49 main_n) (<= 184 main_i)) (or (<= main_n 49) (<= main_i 184)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32239#(and (or (< 49 main_n) (<= 188 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 188)))} is VALID [2019-02-27 13:05:01,319 INFO L273 TraceCheckUtils]: 94: Hoare triple {32239#(and (or (< 49 main_n) (<= 188 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 188)))} assume i <= n * 4; {32239#(and (or (< 49 main_n) (<= 188 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 188)))} is VALID [2019-02-27 13:05:01,321 INFO L273 TraceCheckUtils]: 95: Hoare triple {32239#(and (or (< 49 main_n) (<= 188 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 188)))} assume a[i] != 23;i := i + 4; {32240#(and (or (<= 192 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 192)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,321 INFO L273 TraceCheckUtils]: 96: Hoare triple {32240#(and (or (<= 192 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 192)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32240#(and (or (<= 192 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 192)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:01,323 INFO L273 TraceCheckUtils]: 97: Hoare triple {32240#(and (or (<= 192 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 192)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32241#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 49) (<= main_i 196)) (or (<= (* 4 main_n) main_i) (< 49 main_n)))))} is VALID [2019-02-27 13:05:01,324 INFO L273 TraceCheckUtils]: 98: Hoare triple {32241#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 49) (<= main_i 196)) (or (<= (* 4 main_n) main_i) (< 49 main_n)))))} assume i <= n * 4; {32242#(and (or (= (* 4 main_n) main_i) (and (< 49 main_n) (<= main_i 196))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2019-02-27 13:05:01,325 INFO L273 TraceCheckUtils]: 99: Hoare triple {32242#(and (or (= (* 4 main_n) main_i) (and (< 49 main_n) (<= main_i 196))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume a[i] != 23;i := i + 4; {32243#(and (<= main_i 200) (< 49 main_n))} is VALID [2019-02-27 13:05:01,325 INFO L273 TraceCheckUtils]: 100: Hoare triple {32243#(and (<= main_i 200) (< 49 main_n))} assume !(i <= n * 4); {32191#false} is VALID [2019-02-27 13:05:01,368 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 0 proven. 2450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:05:01,368 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 13:05:01,368 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 13:05:01,368 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 13:05:01,368 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 13:05:01,368 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 13:05:01,368 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 13:05:01,377 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 13:05:01,377 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-27 13:05:01,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:05:01,407 WARN L254 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 105 conjunts are in the unsatisfiable core [2019-02-27 13:05:01,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:05:01,426 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 13:05:01,445 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 13:05:01,447 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 13:05:01,455 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 13:05:01,455 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 13:05:01,457 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 13:05:01,457 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_53]. (and (= main_a (store v_main_a_53 (* 4 main_n) 23)) (= main_i 0)) [2019-02-27 13:05:01,457 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 13:05:05,522 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 13:05:05,524 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 13:05:05,530 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 13:05:05,531 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 13:05:05,533 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 13:05:05,533 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= 23 (select main_a 196))) (<= 196 .cse0) (<= main_i 200) (= 23 (select main_a .cse0)))) [2019-02-27 13:05:05,534 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 196 .cse0)) (<= 196 .cse0) (<= main_i 200))) [2019-02-27 13:05:05,599 INFO L273 TraceCheckUtils]: 0: Hoare triple {32190#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {32247#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,600 INFO L273 TraceCheckUtils]: 1: Hoare triple {32247#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32251#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 13:05:05,600 INFO L273 TraceCheckUtils]: 2: Hoare triple {32251#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {32251#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 13:05:05,601 INFO L273 TraceCheckUtils]: 3: Hoare triple {32251#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {32258#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,601 INFO L273 TraceCheckUtils]: 4: Hoare triple {32258#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32258#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,602 INFO L273 TraceCheckUtils]: 5: Hoare triple {32258#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32265#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 13:05:05,603 INFO L273 TraceCheckUtils]: 6: Hoare triple {32265#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {32265#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 13:05:05,603 INFO L273 TraceCheckUtils]: 7: Hoare triple {32265#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {32272#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,604 INFO L273 TraceCheckUtils]: 8: Hoare triple {32272#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32272#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,605 INFO L273 TraceCheckUtils]: 9: Hoare triple {32272#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32279#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,606 INFO L273 TraceCheckUtils]: 10: Hoare triple {32279#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32279#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,606 INFO L273 TraceCheckUtils]: 11: Hoare triple {32279#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32286#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,607 INFO L273 TraceCheckUtils]: 12: Hoare triple {32286#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32286#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,608 INFO L273 TraceCheckUtils]: 13: Hoare triple {32286#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32293#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,608 INFO L273 TraceCheckUtils]: 14: Hoare triple {32293#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32293#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,609 INFO L273 TraceCheckUtils]: 15: Hoare triple {32293#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32300#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,610 INFO L273 TraceCheckUtils]: 16: Hoare triple {32300#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32300#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,611 INFO L273 TraceCheckUtils]: 17: Hoare triple {32300#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32307#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,611 INFO L273 TraceCheckUtils]: 18: Hoare triple {32307#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32307#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,612 INFO L273 TraceCheckUtils]: 19: Hoare triple {32307#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32314#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,613 INFO L273 TraceCheckUtils]: 20: Hoare triple {32314#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32314#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,613 INFO L273 TraceCheckUtils]: 21: Hoare triple {32314#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32321#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,614 INFO L273 TraceCheckUtils]: 22: Hoare triple {32321#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32321#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,615 INFO L273 TraceCheckUtils]: 23: Hoare triple {32321#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32328#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,615 INFO L273 TraceCheckUtils]: 24: Hoare triple {32328#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32328#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,616 INFO L273 TraceCheckUtils]: 25: Hoare triple {32328#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32335#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,617 INFO L273 TraceCheckUtils]: 26: Hoare triple {32335#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32335#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,617 INFO L273 TraceCheckUtils]: 27: Hoare triple {32335#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32342#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,618 INFO L273 TraceCheckUtils]: 28: Hoare triple {32342#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32342#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,619 INFO L273 TraceCheckUtils]: 29: Hoare triple {32342#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32349#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,619 INFO L273 TraceCheckUtils]: 30: Hoare triple {32349#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32349#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,620 INFO L273 TraceCheckUtils]: 31: Hoare triple {32349#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32356#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,621 INFO L273 TraceCheckUtils]: 32: Hoare triple {32356#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32356#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,622 INFO L273 TraceCheckUtils]: 33: Hoare triple {32356#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32363#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,622 INFO L273 TraceCheckUtils]: 34: Hoare triple {32363#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32363#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,623 INFO L273 TraceCheckUtils]: 35: Hoare triple {32363#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32370#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,624 INFO L273 TraceCheckUtils]: 36: Hoare triple {32370#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32370#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,624 INFO L273 TraceCheckUtils]: 37: Hoare triple {32370#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32377#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,625 INFO L273 TraceCheckUtils]: 38: Hoare triple {32377#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32377#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,626 INFO L273 TraceCheckUtils]: 39: Hoare triple {32377#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32384#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 13:05:05,627 INFO L273 TraceCheckUtils]: 40: Hoare triple {32384#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {32384#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 13:05:05,627 INFO L273 TraceCheckUtils]: 41: Hoare triple {32384#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {32391#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,628 INFO L273 TraceCheckUtils]: 42: Hoare triple {32391#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32391#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,629 INFO L273 TraceCheckUtils]: 43: Hoare triple {32391#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32398#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,630 INFO L273 TraceCheckUtils]: 44: Hoare triple {32398#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32398#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,630 INFO L273 TraceCheckUtils]: 45: Hoare triple {32398#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32405#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,631 INFO L273 TraceCheckUtils]: 46: Hoare triple {32405#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32405#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,632 INFO L273 TraceCheckUtils]: 47: Hoare triple {32405#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32412#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,632 INFO L273 TraceCheckUtils]: 48: Hoare triple {32412#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32412#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,633 INFO L273 TraceCheckUtils]: 49: Hoare triple {32412#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32419#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,634 INFO L273 TraceCheckUtils]: 50: Hoare triple {32419#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32419#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,635 INFO L273 TraceCheckUtils]: 51: Hoare triple {32419#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32426#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,635 INFO L273 TraceCheckUtils]: 52: Hoare triple {32426#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32426#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,636 INFO L273 TraceCheckUtils]: 53: Hoare triple {32426#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32433#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,637 INFO L273 TraceCheckUtils]: 54: Hoare triple {32433#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32433#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,637 INFO L273 TraceCheckUtils]: 55: Hoare triple {32433#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32440#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,638 INFO L273 TraceCheckUtils]: 56: Hoare triple {32440#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32440#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,639 INFO L273 TraceCheckUtils]: 57: Hoare triple {32440#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32447#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,640 INFO L273 TraceCheckUtils]: 58: Hoare triple {32447#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32447#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,640 INFO L273 TraceCheckUtils]: 59: Hoare triple {32447#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32454#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,641 INFO L273 TraceCheckUtils]: 60: Hoare triple {32454#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32454#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,642 INFO L273 TraceCheckUtils]: 61: Hoare triple {32454#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32461#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,642 INFO L273 TraceCheckUtils]: 62: Hoare triple {32461#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32461#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,643 INFO L273 TraceCheckUtils]: 63: Hoare triple {32461#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32468#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,644 INFO L273 TraceCheckUtils]: 64: Hoare triple {32468#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32468#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,645 INFO L273 TraceCheckUtils]: 65: Hoare triple {32468#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32475#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,645 INFO L273 TraceCheckUtils]: 66: Hoare triple {32475#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32475#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,646 INFO L273 TraceCheckUtils]: 67: Hoare triple {32475#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32482#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,647 INFO L273 TraceCheckUtils]: 68: Hoare triple {32482#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32482#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,648 INFO L273 TraceCheckUtils]: 69: Hoare triple {32482#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32489#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 13:05:05,648 INFO L273 TraceCheckUtils]: 70: Hoare triple {32489#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {32489#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 13:05:05,649 INFO L273 TraceCheckUtils]: 71: Hoare triple {32489#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {32496#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,650 INFO L273 TraceCheckUtils]: 72: Hoare triple {32496#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32496#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,651 INFO L273 TraceCheckUtils]: 73: Hoare triple {32496#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32503#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,651 INFO L273 TraceCheckUtils]: 74: Hoare triple {32503#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32503#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,652 INFO L273 TraceCheckUtils]: 75: Hoare triple {32503#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32510#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,653 INFO L273 TraceCheckUtils]: 76: Hoare triple {32510#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32510#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,653 INFO L273 TraceCheckUtils]: 77: Hoare triple {32510#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32517#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,654 INFO L273 TraceCheckUtils]: 78: Hoare triple {32517#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32517#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,655 INFO L273 TraceCheckUtils]: 79: Hoare triple {32517#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32524#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,656 INFO L273 TraceCheckUtils]: 80: Hoare triple {32524#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32524#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,656 INFO L273 TraceCheckUtils]: 81: Hoare triple {32524#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32531#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-02-27 13:05:05,657 INFO L273 TraceCheckUtils]: 82: Hoare triple {32531#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {32531#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-02-27 13:05:05,658 INFO L273 TraceCheckUtils]: 83: Hoare triple {32531#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {32538#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,658 INFO L273 TraceCheckUtils]: 84: Hoare triple {32538#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32538#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,659 INFO L273 TraceCheckUtils]: 85: Hoare triple {32538#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32545#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,660 INFO L273 TraceCheckUtils]: 86: Hoare triple {32545#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32545#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,660 INFO L273 TraceCheckUtils]: 87: Hoare triple {32545#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32552#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,661 INFO L273 TraceCheckUtils]: 88: Hoare triple {32552#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32552#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,662 INFO L273 TraceCheckUtils]: 89: Hoare triple {32552#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32559#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,663 INFO L273 TraceCheckUtils]: 90: Hoare triple {32559#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32559#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,663 INFO L273 TraceCheckUtils]: 91: Hoare triple {32559#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32566#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,664 INFO L273 TraceCheckUtils]: 92: Hoare triple {32566#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32566#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,665 INFO L273 TraceCheckUtils]: 93: Hoare triple {32566#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32573#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,665 INFO L273 TraceCheckUtils]: 94: Hoare triple {32573#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32573#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,666 INFO L273 TraceCheckUtils]: 95: Hoare triple {32573#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32580#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,667 INFO L273 TraceCheckUtils]: 96: Hoare triple {32580#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32580#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,667 INFO L273 TraceCheckUtils]: 97: Hoare triple {32580#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32587#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,668 INFO L273 TraceCheckUtils]: 98: Hoare triple {32587#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32591#(and (= main_i 196) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:05,669 INFO L273 TraceCheckUtils]: 99: Hoare triple {32591#(and (= main_i 196) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32243#(and (<= main_i 200) (< 49 main_n))} is VALID [2019-02-27 13:05:05,670 INFO L273 TraceCheckUtils]: 100: Hoare triple {32243#(and (<= main_i 200) (< 49 main_n))} assume !(i <= n * 4); {32191#false} is VALID [2019-02-27 13:05:05,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 0 proven. 2450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:05:05,692 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 13:05:13,156 INFO L273 TraceCheckUtils]: 100: Hoare triple {32598#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {32191#false} is VALID [2019-02-27 13:05:13,156 INFO L273 TraceCheckUtils]: 99: Hoare triple {32602#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {32598#(<= main_i (* 4 main_n))} is VALID [2019-02-27 13:05:13,157 INFO L273 TraceCheckUtils]: 98: Hoare triple {32606#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {32602#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:05:13,157 INFO L273 TraceCheckUtils]: 97: Hoare triple {32610#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {32606#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:05:13,158 INFO L273 TraceCheckUtils]: 96: Hoare triple {32610#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {32610#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:05:13,159 INFO L273 TraceCheckUtils]: 95: Hoare triple {32617#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {32610#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:05:13,159 INFO L273 TraceCheckUtils]: 94: Hoare triple {32617#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {32617#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:05:13,160 INFO L273 TraceCheckUtils]: 93: Hoare triple {32624#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {32617#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:05:13,161 INFO L273 TraceCheckUtils]: 92: Hoare triple {32624#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {32624#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:05:13,162 INFO L273 TraceCheckUtils]: 91: Hoare triple {32631#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {32624#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:05:13,163 INFO L273 TraceCheckUtils]: 90: Hoare triple {32631#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {32631#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:05:13,164 INFO L273 TraceCheckUtils]: 89: Hoare triple {32638#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32631#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:05:13,164 INFO L273 TraceCheckUtils]: 88: Hoare triple {32638#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {32638#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:05:13,165 INFO L273 TraceCheckUtils]: 87: Hoare triple {32645#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {32638#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:05:13,166 INFO L273 TraceCheckUtils]: 86: Hoare triple {32645#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {32645#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:05:13,167 INFO L273 TraceCheckUtils]: 85: Hoare triple {32652#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32645#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:05:13,167 INFO L273 TraceCheckUtils]: 84: Hoare triple {32652#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {32652#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:05:13,168 INFO L273 TraceCheckUtils]: 83: Hoare triple {32659#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32652#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:05:13,169 INFO L273 TraceCheckUtils]: 82: Hoare triple {32659#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {32659#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:05:13,170 INFO L273 TraceCheckUtils]: 81: Hoare triple {32666#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32659#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:05:13,171 INFO L273 TraceCheckUtils]: 80: Hoare triple {32666#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {32666#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:05:13,172 INFO L273 TraceCheckUtils]: 79: Hoare triple {32673#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {32666#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:05:13,172 INFO L273 TraceCheckUtils]: 78: Hoare triple {32673#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {32673#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:05:13,173 INFO L273 TraceCheckUtils]: 77: Hoare triple {32680#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32673#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:05:13,174 INFO L273 TraceCheckUtils]: 76: Hoare triple {32680#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {32680#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:05:13,175 INFO L273 TraceCheckUtils]: 75: Hoare triple {32687#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32680#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:05:13,175 INFO L273 TraceCheckUtils]: 74: Hoare triple {32687#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {32687#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:05:13,176 INFO L273 TraceCheckUtils]: 73: Hoare triple {32694#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {32687#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:05:13,177 INFO L273 TraceCheckUtils]: 72: Hoare triple {32694#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {32694#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:05:13,178 INFO L273 TraceCheckUtils]: 71: Hoare triple {32701#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32694#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:05:13,178 INFO L273 TraceCheckUtils]: 70: Hoare triple {32701#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {32701#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:05:13,179 INFO L273 TraceCheckUtils]: 69: Hoare triple {32708#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {32701#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:05:13,180 INFO L273 TraceCheckUtils]: 68: Hoare triple {32708#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {32708#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:05:13,181 INFO L273 TraceCheckUtils]: 67: Hoare triple {32715#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {32708#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:05:13,182 INFO L273 TraceCheckUtils]: 66: Hoare triple {32715#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {32715#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:05:13,183 INFO L273 TraceCheckUtils]: 65: Hoare triple {32722#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {32715#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:05:13,183 INFO L273 TraceCheckUtils]: 64: Hoare triple {32722#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {32722#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:05:13,184 INFO L273 TraceCheckUtils]: 63: Hoare triple {32729#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {32722#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:05:13,185 INFO L273 TraceCheckUtils]: 62: Hoare triple {32729#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {32729#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:05:13,186 INFO L273 TraceCheckUtils]: 61: Hoare triple {32736#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {32729#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:05:13,186 INFO L273 TraceCheckUtils]: 60: Hoare triple {32736#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {32736#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:05:13,188 INFO L273 TraceCheckUtils]: 59: Hoare triple {32743#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {32736#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:05:13,188 INFO L273 TraceCheckUtils]: 58: Hoare triple {32743#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {32743#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:05:13,189 INFO L273 TraceCheckUtils]: 57: Hoare triple {32750#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32743#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:05:13,190 INFO L273 TraceCheckUtils]: 56: Hoare triple {32750#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {32750#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:05:13,191 INFO L273 TraceCheckUtils]: 55: Hoare triple {32757#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32750#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:05:13,191 INFO L273 TraceCheckUtils]: 54: Hoare triple {32757#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {32757#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:05:13,192 INFO L273 TraceCheckUtils]: 53: Hoare triple {32764#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32757#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:05:13,193 INFO L273 TraceCheckUtils]: 52: Hoare triple {32764#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {32764#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:05:13,194 INFO L273 TraceCheckUtils]: 51: Hoare triple {32771#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {32764#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:05:13,194 INFO L273 TraceCheckUtils]: 50: Hoare triple {32771#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {32771#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:05:13,195 INFO L273 TraceCheckUtils]: 49: Hoare triple {32778#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32771#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:05:13,196 INFO L273 TraceCheckUtils]: 48: Hoare triple {32778#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {32778#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:05:13,197 INFO L273 TraceCheckUtils]: 47: Hoare triple {32785#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {32778#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:05:13,197 INFO L273 TraceCheckUtils]: 46: Hoare triple {32785#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {32785#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:05:13,199 INFO L273 TraceCheckUtils]: 45: Hoare triple {32792#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {32785#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:05:13,199 INFO L273 TraceCheckUtils]: 44: Hoare triple {32792#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {32792#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:05:13,200 INFO L273 TraceCheckUtils]: 43: Hoare triple {32799#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {32792#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:05:13,201 INFO L273 TraceCheckUtils]: 42: Hoare triple {32799#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {32799#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:05:13,202 INFO L273 TraceCheckUtils]: 41: Hoare triple {32806#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32799#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:05:13,202 INFO L273 TraceCheckUtils]: 40: Hoare triple {32806#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {32806#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:05:13,203 INFO L273 TraceCheckUtils]: 39: Hoare triple {32813#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32806#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:05:13,204 INFO L273 TraceCheckUtils]: 38: Hoare triple {32813#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {32813#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:05:13,205 INFO L273 TraceCheckUtils]: 37: Hoare triple {32820#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {32813#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:05:13,206 INFO L273 TraceCheckUtils]: 36: Hoare triple {32820#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {32820#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:05:13,207 INFO L273 TraceCheckUtils]: 35: Hoare triple {32827#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32820#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:05:13,207 INFO L273 TraceCheckUtils]: 34: Hoare triple {32827#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {32827#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:05:13,208 INFO L273 TraceCheckUtils]: 33: Hoare triple {32834#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {32827#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:05:13,209 INFO L273 TraceCheckUtils]: 32: Hoare triple {32834#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {32834#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:05:13,210 INFO L273 TraceCheckUtils]: 31: Hoare triple {32841#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {32834#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:05:13,211 INFO L273 TraceCheckUtils]: 30: Hoare triple {32841#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {32841#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:05:13,212 INFO L273 TraceCheckUtils]: 29: Hoare triple {32848#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {32841#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:05:13,212 INFO L273 TraceCheckUtils]: 28: Hoare triple {32848#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {32848#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:05:13,213 INFO L273 TraceCheckUtils]: 27: Hoare triple {32855#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {32848#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:05:13,214 INFO L273 TraceCheckUtils]: 26: Hoare triple {32855#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {32855#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:05:13,215 INFO L273 TraceCheckUtils]: 25: Hoare triple {32862#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {32855#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:05:13,215 INFO L273 TraceCheckUtils]: 24: Hoare triple {32862#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {32862#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-02-27 13:05:13,216 INFO L273 TraceCheckUtils]: 23: Hoare triple {32869#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {32862#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-02-27 13:05:13,217 INFO L273 TraceCheckUtils]: 22: Hoare triple {32869#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {32869#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-02-27 13:05:13,218 INFO L273 TraceCheckUtils]: 21: Hoare triple {32876#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {32869#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-02-27 13:05:13,218 INFO L273 TraceCheckUtils]: 20: Hoare triple {32876#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {32876#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-02-27 13:05:13,219 INFO L273 TraceCheckUtils]: 19: Hoare triple {32883#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {32876#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-02-27 13:05:13,220 INFO L273 TraceCheckUtils]: 18: Hoare triple {32883#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {32883#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-02-27 13:05:13,221 INFO L273 TraceCheckUtils]: 17: Hoare triple {32890#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {32883#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-02-27 13:05:13,221 INFO L273 TraceCheckUtils]: 16: Hoare triple {32890#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {32890#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-02-27 13:05:13,223 INFO L273 TraceCheckUtils]: 15: Hoare triple {32897#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32890#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-02-27 13:05:13,223 INFO L273 TraceCheckUtils]: 14: Hoare triple {32897#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume i <= n * 4; {32897#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-02-27 13:05:13,224 INFO L273 TraceCheckUtils]: 13: Hoare triple {32904#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32897#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-02-27 13:05:13,225 INFO L273 TraceCheckUtils]: 12: Hoare triple {32904#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume i <= n * 4; {32904#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-02-27 13:05:13,226 INFO L273 TraceCheckUtils]: 11: Hoare triple {32911#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume a[i] != 23;i := i + 4; {32904#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-02-27 13:05:13,226 INFO L273 TraceCheckUtils]: 10: Hoare triple {32911#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume i <= n * 4; {32911#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-02-27 13:05:13,227 INFO L273 TraceCheckUtils]: 9: Hoare triple {32918#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume a[i] != 23;i := i + 4; {32911#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-02-27 13:05:13,228 INFO L273 TraceCheckUtils]: 8: Hoare triple {32918#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume i <= n * 4; {32918#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-02-27 13:05:13,229 INFO L273 TraceCheckUtils]: 7: Hoare triple {32925#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume a[i] != 23;i := i + 4; {32918#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-02-27 13:05:13,229 INFO L273 TraceCheckUtils]: 6: Hoare triple {32925#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume i <= n * 4; {32925#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2019-02-27 13:05:13,230 INFO L273 TraceCheckUtils]: 5: Hoare triple {32932#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume a[i] != 23;i := i + 4; {32925#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2019-02-27 13:05:13,231 INFO L273 TraceCheckUtils]: 4: Hoare triple {32932#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume i <= n * 4; {32932#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2019-02-27 13:05:13,232 INFO L273 TraceCheckUtils]: 3: Hoare triple {32939#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} assume a[i] != 23;i := i + 4; {32932#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2019-02-27 13:05:13,233 INFO L273 TraceCheckUtils]: 2: Hoare triple {32939#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} assume i <= n * 4; {32939#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} is VALID [2019-02-27 13:05:13,234 INFO L273 TraceCheckUtils]: 1: Hoare triple {32946#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} assume a[i] != 23;i := i + 4; {32939#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} is VALID [2019-02-27 13:05:13,235 INFO L273 TraceCheckUtils]: 0: Hoare triple {32190#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {32946#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} is VALID [2019-02-27 13:05:13,271 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 0 proven. 2450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:05:13,290 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 13:05:13,290 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52, 52] total 155 [2019-02-27 13:05:13,291 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 13:05:13,291 INFO L78 Accepts]: Start accepts. Automaton has 105 states. Word has length 101 [2019-02-27 13:05:13,291 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 13:05:13,291 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 105 states. [2019-02-27 13:05:13,539 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 201 edges. 201 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 13:05:13,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 105 states [2019-02-27 13:05:13,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2019-02-27 13:05:13,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2972, Invalid=21520, Unknown=0, NotChecked=0, Total=24492 [2019-02-27 13:05:13,541 INFO L87 Difference]: Start difference. First operand 102 states and 102 transitions. Second operand 105 states. [2019-02-27 13:05:34,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:05:34,427 INFO L93 Difference]: Finished difference Result 106 states and 106 transitions. [2019-02-27 13:05:34,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2019-02-27 13:05:34,427 INFO L78 Accepts]: Start accepts. Automaton has 105 states. Word has length 101 [2019-02-27 13:05:34,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 13:05:34,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-02-27 13:05:34,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 106 transitions. [2019-02-27 13:05:34,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-02-27 13:05:34,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 106 transitions. [2019-02-27 13:05:34,430 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 54 states and 106 transitions. [2019-02-27 13:05:35,062 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 106 edges. 106 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 13:05:35,064 INFO L225 Difference]: With dead ends: 106 [2019-02-27 13:05:35,064 INFO L226 Difference]: Without dead ends: 105 [2019-02-27 13:05:35,065 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5508 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=2972, Invalid=21520, Unknown=0, NotChecked=0, Total=24492 [2019-02-27 13:05:35,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2019-02-27 13:05:35,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 104. [2019-02-27 13:05:35,526 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 13:05:35,526 INFO L82 GeneralOperation]: Start isEquivalent. First operand 105 states. Second operand 104 states. [2019-02-27 13:05:35,526 INFO L74 IsIncluded]: Start isIncluded. First operand 105 states. Second operand 104 states. [2019-02-27 13:05:35,527 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 104 states. [2019-02-27 13:05:35,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:05:35,528 INFO L93 Difference]: Finished difference Result 105 states and 105 transitions. [2019-02-27 13:05:35,529 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 105 transitions. [2019-02-27 13:05:35,529 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 13:05:35,529 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 13:05:35,529 INFO L74 IsIncluded]: Start isIncluded. First operand 104 states. Second operand 105 states. [2019-02-27 13:05:35,529 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 105 states. [2019-02-27 13:05:35,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:05:35,530 INFO L93 Difference]: Finished difference Result 105 states and 105 transitions. [2019-02-27 13:05:35,530 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 105 transitions. [2019-02-27 13:05:35,530 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 13:05:35,530 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 13:05:35,531 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 13:05:35,531 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 13:05:35,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-02-27 13:05:35,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 104 transitions. [2019-02-27 13:05:35,532 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 104 transitions. Word has length 101 [2019-02-27 13:05:35,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 13:05:35,532 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 104 transitions. [2019-02-27 13:05:35,532 INFO L481 AbstractCegarLoop]: Interpolant automaton has 105 states. [2019-02-27 13:05:35,532 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 104 transitions. [2019-02-27 13:05:35,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-02-27 13:05:35,533 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 13:05:35,533 INFO L402 BasicCegarLoop]: trace histogram [51, 50, 1, 1] [2019-02-27 13:05:35,533 INFO L423 AbstractCegarLoop]: === Iteration 51 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 13:05:35,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 13:05:35,534 INFO L82 PathProgramCache]: Analyzing trace with hash -315445948, now seen corresponding path program 50 times [2019-02-27 13:05:35,534 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 13:05:35,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 13:05:35,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 13:05:35,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 13:05:35,534 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 13:05:35,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:05:38,929 INFO L273 TraceCheckUtils]: 0: Hoare triple {33472#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {33474#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 0)))} is VALID [2019-02-27 13:05:38,930 INFO L273 TraceCheckUtils]: 1: Hoare triple {33474#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 0)))} assume a[i] != 23;i := i + 4; {33475#(and (or (< 50 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 50) (<= main_i 4)))} is VALID [2019-02-27 13:05:38,931 INFO L273 TraceCheckUtils]: 2: Hoare triple {33475#(and (or (< 50 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 50) (<= main_i 4)))} assume i <= n * 4; {33475#(and (or (< 50 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 50) (<= main_i 4)))} is VALID [2019-02-27 13:05:38,932 INFO L273 TraceCheckUtils]: 3: Hoare triple {33475#(and (or (< 50 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 50) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {33476#(and (or (< 50 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 8)))} is VALID [2019-02-27 13:05:38,933 INFO L273 TraceCheckUtils]: 4: Hoare triple {33476#(and (or (< 50 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 8)))} assume i <= n * 4; {33476#(and (or (< 50 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 8)))} is VALID [2019-02-27 13:05:38,934 INFO L273 TraceCheckUtils]: 5: Hoare triple {33476#(and (or (< 50 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 8)))} assume a[i] != 23;i := i + 4; {33477#(and (or (<= main_n 50) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-02-27 13:05:38,935 INFO L273 TraceCheckUtils]: 6: Hoare triple {33477#(and (or (<= main_n 50) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume i <= n * 4; {33477#(and (or (<= main_n 50) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-02-27 13:05:38,936 INFO L273 TraceCheckUtils]: 7: Hoare triple {33477#(and (or (<= main_n 50) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33478#(and (or (<= main_n 50) (<= main_i 16)) (or (< 50 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:05:38,937 INFO L273 TraceCheckUtils]: 8: Hoare triple {33478#(and (or (<= main_n 50) (<= main_i 16)) (or (< 50 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {33478#(and (or (<= main_n 50) (<= main_i 16)) (or (< 50 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:05:38,938 INFO L273 TraceCheckUtils]: 9: Hoare triple {33478#(and (or (<= main_n 50) (<= main_i 16)) (or (< 50 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {33479#(and (or (<= main_n 50) (<= main_i 20)) (or (< 50 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:05:38,939 INFO L273 TraceCheckUtils]: 10: Hoare triple {33479#(and (or (<= main_n 50) (<= main_i 20)) (or (< 50 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {33479#(and (or (<= main_n 50) (<= main_i 20)) (or (< 50 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:05:38,940 INFO L273 TraceCheckUtils]: 11: Hoare triple {33479#(and (or (<= main_n 50) (<= main_i 20)) (or (< 50 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {33480#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 24)))} is VALID [2019-02-27 13:05:38,941 INFO L273 TraceCheckUtils]: 12: Hoare triple {33480#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 24)))} assume i <= n * 4; {33480#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 24)))} is VALID [2019-02-27 13:05:38,942 INFO L273 TraceCheckUtils]: 13: Hoare triple {33480#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 24)))} assume a[i] != 23;i := i + 4; {33481#(and (or (<= main_n 50) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-02-27 13:05:38,942 INFO L273 TraceCheckUtils]: 14: Hoare triple {33481#(and (or (<= main_n 50) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume i <= n * 4; {33481#(and (or (<= main_n 50) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-02-27 13:05:38,944 INFO L273 TraceCheckUtils]: 15: Hoare triple {33481#(and (or (<= main_n 50) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33482#(and (or (<= main_i 32) (<= main_n 50)) (or (< 50 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:05:38,944 INFO L273 TraceCheckUtils]: 16: Hoare triple {33482#(and (or (<= main_i 32) (<= main_n 50)) (or (< 50 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {33482#(and (or (<= main_i 32) (<= main_n 50)) (or (< 50 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:05:38,945 INFO L273 TraceCheckUtils]: 17: Hoare triple {33482#(and (or (<= main_i 32) (<= main_n 50)) (or (< 50 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {33483#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 50 main_n)) (or (<= main_i 36) (<= main_n 50)))} is VALID [2019-02-27 13:05:38,946 INFO L273 TraceCheckUtils]: 18: Hoare triple {33483#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 50 main_n)) (or (<= main_i 36) (<= main_n 50)))} assume i <= n * 4; {33483#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 50 main_n)) (or (<= main_i 36) (<= main_n 50)))} is VALID [2019-02-27 13:05:38,947 INFO L273 TraceCheckUtils]: 19: Hoare triple {33483#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 50 main_n)) (or (<= main_i 36) (<= main_n 50)))} assume a[i] != 23;i := i + 4; {33484#(and (or (<= main_i 40) (<= main_n 50)) (or (< 50 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:05:38,948 INFO L273 TraceCheckUtils]: 20: Hoare triple {33484#(and (or (<= main_i 40) (<= main_n 50)) (or (< 50 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {33484#(and (or (<= main_i 40) (<= main_n 50)) (or (< 50 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:05:38,949 INFO L273 TraceCheckUtils]: 21: Hoare triple {33484#(and (or (<= main_i 40) (<= main_n 50)) (or (< 50 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {33485#(and (or (<= main_n 50) (<= main_i 44)) (or (< 50 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:05:38,950 INFO L273 TraceCheckUtils]: 22: Hoare triple {33485#(and (or (<= main_n 50) (<= main_i 44)) (or (< 50 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {33485#(and (or (<= main_n 50) (<= main_i 44)) (or (< 50 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:05:38,951 INFO L273 TraceCheckUtils]: 23: Hoare triple {33485#(and (or (<= main_n 50) (<= main_i 44)) (or (< 50 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {33486#(and (or (<= main_n 50) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-02-27 13:05:38,952 INFO L273 TraceCheckUtils]: 24: Hoare triple {33486#(and (or (<= main_n 50) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume i <= n * 4; {33486#(and (or (<= main_n 50) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-02-27 13:05:38,953 INFO L273 TraceCheckUtils]: 25: Hoare triple {33486#(and (or (<= main_n 50) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33487#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 52) (<= main_n 50)))} is VALID [2019-02-27 13:05:38,954 INFO L273 TraceCheckUtils]: 26: Hoare triple {33487#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 52) (<= main_n 50)))} assume i <= n * 4; {33487#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 52) (<= main_n 50)))} is VALID [2019-02-27 13:05:38,955 INFO L273 TraceCheckUtils]: 27: Hoare triple {33487#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 52) (<= main_n 50)))} assume a[i] != 23;i := i + 4; {33488#(and (or (< 50 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 56)))} is VALID [2019-02-27 13:05:38,955 INFO L273 TraceCheckUtils]: 28: Hoare triple {33488#(and (or (< 50 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 56)))} assume i <= n * 4; {33488#(and (or (< 50 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 56)))} is VALID [2019-02-27 13:05:38,957 INFO L273 TraceCheckUtils]: 29: Hoare triple {33488#(and (or (< 50 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 56)))} assume a[i] != 23;i := i + 4; {33489#(and (or (< 50 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 60)))} is VALID [2019-02-27 13:05:38,957 INFO L273 TraceCheckUtils]: 30: Hoare triple {33489#(and (or (< 50 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 60)))} assume i <= n * 4; {33489#(and (or (< 50 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 60)))} is VALID [2019-02-27 13:05:38,958 INFO L273 TraceCheckUtils]: 31: Hoare triple {33489#(and (or (< 50 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 60)))} assume a[i] != 23;i := i + 4; {33490#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 64)))} is VALID [2019-02-27 13:05:38,959 INFO L273 TraceCheckUtils]: 32: Hoare triple {33490#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 64)))} assume i <= n * 4; {33490#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 64)))} is VALID [2019-02-27 13:05:38,960 INFO L273 TraceCheckUtils]: 33: Hoare triple {33490#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 64)))} assume a[i] != 23;i := i + 4; {33491#(and (or (<= main_n 50) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-02-27 13:05:38,961 INFO L273 TraceCheckUtils]: 34: Hoare triple {33491#(and (or (<= main_n 50) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume i <= n * 4; {33491#(and (or (<= main_n 50) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-02-27 13:05:38,962 INFO L273 TraceCheckUtils]: 35: Hoare triple {33491#(and (or (<= main_n 50) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33492#(and (or (<= main_n 50) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-02-27 13:05:38,963 INFO L273 TraceCheckUtils]: 36: Hoare triple {33492#(and (or (<= main_n 50) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume i <= n * 4; {33492#(and (or (<= main_n 50) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-02-27 13:05:38,964 INFO L273 TraceCheckUtils]: 37: Hoare triple {33492#(and (or (<= main_n 50) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33493#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 76) (<= main_n 50)))} is VALID [2019-02-27 13:05:38,965 INFO L273 TraceCheckUtils]: 38: Hoare triple {33493#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 76) (<= main_n 50)))} assume i <= n * 4; {33493#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 76) (<= main_n 50)))} is VALID [2019-02-27 13:05:38,966 INFO L273 TraceCheckUtils]: 39: Hoare triple {33493#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 76) (<= main_n 50)))} assume a[i] != 23;i := i + 4; {33494#(and (or (<= main_n 50) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-02-27 13:05:38,967 INFO L273 TraceCheckUtils]: 40: Hoare triple {33494#(and (or (<= main_n 50) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume i <= n * 4; {33494#(and (or (<= main_n 50) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-02-27 13:05:38,968 INFO L273 TraceCheckUtils]: 41: Hoare triple {33494#(and (or (<= main_n 50) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33495#(and (or (<= main_n 50) (<= main_i 84)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 50 main_n)))} is VALID [2019-02-27 13:05:38,968 INFO L273 TraceCheckUtils]: 42: Hoare triple {33495#(and (or (<= main_n 50) (<= main_i 84)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 50 main_n)))} assume i <= n * 4; {33495#(and (or (<= main_n 50) (<= main_i 84)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 50 main_n)))} is VALID [2019-02-27 13:05:38,970 INFO L273 TraceCheckUtils]: 43: Hoare triple {33495#(and (or (<= main_n 50) (<= main_i 84)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33496#(and (or (<= main_i 88) (<= main_n 50)) (or (< 50 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:05:38,970 INFO L273 TraceCheckUtils]: 44: Hoare triple {33496#(and (or (<= main_i 88) (<= main_n 50)) (or (< 50 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {33496#(and (or (<= main_i 88) (<= main_n 50)) (or (< 50 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:05:38,971 INFO L273 TraceCheckUtils]: 45: Hoare triple {33496#(and (or (<= main_i 88) (<= main_n 50)) (or (< 50 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {33497#(and (or (<= main_i 92) (<= main_n 50)) (or (< 50 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:05:38,972 INFO L273 TraceCheckUtils]: 46: Hoare triple {33497#(and (or (<= main_i 92) (<= main_n 50)) (or (< 50 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {33497#(and (or (<= main_i 92) (<= main_n 50)) (or (< 50 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:05:38,973 INFO L273 TraceCheckUtils]: 47: Hoare triple {33497#(and (or (<= main_i 92) (<= main_n 50)) (or (< 50 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {33498#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 96) (<= main_n 50)))} is VALID [2019-02-27 13:05:38,974 INFO L273 TraceCheckUtils]: 48: Hoare triple {33498#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 96) (<= main_n 50)))} assume i <= n * 4; {33498#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 96) (<= main_n 50)))} is VALID [2019-02-27 13:05:38,975 INFO L273 TraceCheckUtils]: 49: Hoare triple {33498#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 96) (<= main_n 50)))} assume a[i] != 23;i := i + 4; {33499#(and (or (<= main_i 100) (<= main_n 50)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-02-27 13:05:38,976 INFO L273 TraceCheckUtils]: 50: Hoare triple {33499#(and (or (<= main_i 100) (<= main_n 50)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume i <= n * 4; {33499#(and (or (<= main_i 100) (<= main_n 50)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-02-27 13:05:38,977 INFO L273 TraceCheckUtils]: 51: Hoare triple {33499#(and (or (<= main_i 100) (<= main_n 50)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33500#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 104) (<= main_n 50)))} is VALID [2019-02-27 13:05:38,978 INFO L273 TraceCheckUtils]: 52: Hoare triple {33500#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 104) (<= main_n 50)))} assume i <= n * 4; {33500#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 104) (<= main_n 50)))} is VALID [2019-02-27 13:05:38,979 INFO L273 TraceCheckUtils]: 53: Hoare triple {33500#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 104) (<= main_n 50)))} assume a[i] != 23;i := i + 4; {33501#(and (or (<= main_n 50) (<= main_i 108)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-02-27 13:05:38,980 INFO L273 TraceCheckUtils]: 54: Hoare triple {33501#(and (or (<= main_n 50) (<= main_i 108)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume i <= n * 4; {33501#(and (or (<= main_n 50) (<= main_i 108)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-02-27 13:05:38,981 INFO L273 TraceCheckUtils]: 55: Hoare triple {33501#(and (or (<= main_n 50) (<= main_i 108)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33502#(and (or (<= main_n 50) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 50 main_n)))} is VALID [2019-02-27 13:05:38,981 INFO L273 TraceCheckUtils]: 56: Hoare triple {33502#(and (or (<= main_n 50) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 50 main_n)))} assume i <= n * 4; {33502#(and (or (<= main_n 50) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 50 main_n)))} is VALID [2019-02-27 13:05:38,983 INFO L273 TraceCheckUtils]: 57: Hoare triple {33502#(and (or (<= main_n 50) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33503#(and (or (< 50 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 116)))} is VALID [2019-02-27 13:05:38,983 INFO L273 TraceCheckUtils]: 58: Hoare triple {33503#(and (or (< 50 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 116)))} assume i <= n * 4; {33503#(and (or (< 50 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 116)))} is VALID [2019-02-27 13:05:38,984 INFO L273 TraceCheckUtils]: 59: Hoare triple {33503#(and (or (< 50 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 116)))} assume a[i] != 23;i := i + 4; {33504#(and (or (<= main_n 50) (<= main_i 120)) (or (< 50 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:05:38,985 INFO L273 TraceCheckUtils]: 60: Hoare triple {33504#(and (or (<= main_n 50) (<= main_i 120)) (or (< 50 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {33504#(and (or (<= main_n 50) (<= main_i 120)) (or (< 50 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:05:38,986 INFO L273 TraceCheckUtils]: 61: Hoare triple {33504#(and (or (<= main_n 50) (<= main_i 120)) (or (< 50 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {33505#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 124)))} is VALID [2019-02-27 13:05:38,987 INFO L273 TraceCheckUtils]: 62: Hoare triple {33505#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 124)))} assume i <= n * 4; {33505#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 124)))} is VALID [2019-02-27 13:05:38,988 INFO L273 TraceCheckUtils]: 63: Hoare triple {33505#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 124)))} assume a[i] != 23;i := i + 4; {33506#(and (or (<= main_n 50) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 50 main_n)))} is VALID [2019-02-27 13:05:38,989 INFO L273 TraceCheckUtils]: 64: Hoare triple {33506#(and (or (<= main_n 50) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 50 main_n)))} assume i <= n * 4; {33506#(and (or (<= main_n 50) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 50 main_n)))} is VALID [2019-02-27 13:05:38,990 INFO L273 TraceCheckUtils]: 65: Hoare triple {33506#(and (or (<= main_n 50) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33507#(and (or (< 50 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 50)))} is VALID [2019-02-27 13:05:38,991 INFO L273 TraceCheckUtils]: 66: Hoare triple {33507#(and (or (< 50 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 50)))} assume i <= n * 4; {33507#(and (or (< 50 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 50)))} is VALID [2019-02-27 13:05:38,992 INFO L273 TraceCheckUtils]: 67: Hoare triple {33507#(and (or (< 50 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 50)))} assume a[i] != 23;i := i + 4; {33508#(and (or (<= main_i 136) (<= main_n 50)) (or (< 50 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:05:38,993 INFO L273 TraceCheckUtils]: 68: Hoare triple {33508#(and (or (<= main_i 136) (<= main_n 50)) (or (< 50 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {33508#(and (or (<= main_i 136) (<= main_n 50)) (or (< 50 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:05:38,994 INFO L273 TraceCheckUtils]: 69: Hoare triple {33508#(and (or (<= main_i 136) (<= main_n 50)) (or (< 50 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {33509#(and (or (< 50 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 50) (<= main_i 140)))} is VALID [2019-02-27 13:05:38,995 INFO L273 TraceCheckUtils]: 70: Hoare triple {33509#(and (or (< 50 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 50) (<= main_i 140)))} assume i <= n * 4; {33509#(and (or (< 50 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 50) (<= main_i 140)))} is VALID [2019-02-27 13:05:38,996 INFO L273 TraceCheckUtils]: 71: Hoare triple {33509#(and (or (< 50 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 50) (<= main_i 140)))} assume a[i] != 23;i := i + 4; {33510#(and (or (< 50 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 144)))} is VALID [2019-02-27 13:05:38,997 INFO L273 TraceCheckUtils]: 72: Hoare triple {33510#(and (or (< 50 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 144)))} assume i <= n * 4; {33510#(and (or (< 50 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 144)))} is VALID [2019-02-27 13:05:38,998 INFO L273 TraceCheckUtils]: 73: Hoare triple {33510#(and (or (< 50 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 144)))} assume a[i] != 23;i := i + 4; {33511#(and (or (< 50 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 148)))} is VALID [2019-02-27 13:05:38,998 INFO L273 TraceCheckUtils]: 74: Hoare triple {33511#(and (or (< 50 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 148)))} assume i <= n * 4; {33511#(and (or (< 50 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 148)))} is VALID [2019-02-27 13:05:38,999 INFO L273 TraceCheckUtils]: 75: Hoare triple {33511#(and (or (< 50 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 148)))} assume a[i] != 23;i := i + 4; {33512#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 152)))} is VALID [2019-02-27 13:05:39,000 INFO L273 TraceCheckUtils]: 76: Hoare triple {33512#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 152)))} assume i <= n * 4; {33512#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 152)))} is VALID [2019-02-27 13:05:39,001 INFO L273 TraceCheckUtils]: 77: Hoare triple {33512#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 152)))} assume a[i] != 23;i := i + 4; {33513#(and (or (< 50 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 50)))} is VALID [2019-02-27 13:05:39,002 INFO L273 TraceCheckUtils]: 78: Hoare triple {33513#(and (or (< 50 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 50)))} assume i <= n * 4; {33513#(and (or (< 50 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 50)))} is VALID [2019-02-27 13:05:39,003 INFO L273 TraceCheckUtils]: 79: Hoare triple {33513#(and (or (< 50 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 50)))} assume a[i] != 23;i := i + 4; {33514#(and (or (<= main_n 50) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-02-27 13:05:39,004 INFO L273 TraceCheckUtils]: 80: Hoare triple {33514#(and (or (<= main_n 50) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume i <= n * 4; {33514#(and (or (<= main_n 50) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-02-27 13:05:39,005 INFO L273 TraceCheckUtils]: 81: Hoare triple {33514#(and (or (<= main_n 50) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33515#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 164)))} is VALID [2019-02-27 13:05:39,006 INFO L273 TraceCheckUtils]: 82: Hoare triple {33515#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 164)))} assume i <= n * 4; {33515#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 164)))} is VALID [2019-02-27 13:05:39,007 INFO L273 TraceCheckUtils]: 83: Hoare triple {33515#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 164)))} assume a[i] != 23;i := i + 4; {33516#(and (or (< 50 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 168)))} is VALID [2019-02-27 13:05:39,008 INFO L273 TraceCheckUtils]: 84: Hoare triple {33516#(and (or (< 50 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 168)))} assume i <= n * 4; {33516#(and (or (< 50 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 168)))} is VALID [2019-02-27 13:05:39,009 INFO L273 TraceCheckUtils]: 85: Hoare triple {33516#(and (or (< 50 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 168)))} assume a[i] != 23;i := i + 4; {33517#(and (or (<= main_n 50) (<= main_i 172)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-02-27 13:05:39,009 INFO L273 TraceCheckUtils]: 86: Hoare triple {33517#(and (or (<= main_n 50) (<= main_i 172)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume i <= n * 4; {33517#(and (or (<= main_n 50) (<= main_i 172)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-02-27 13:05:39,010 INFO L273 TraceCheckUtils]: 87: Hoare triple {33517#(and (or (<= main_n 50) (<= main_i 172)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33518#(and (or (< 50 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 50)))} is VALID [2019-02-27 13:05:39,011 INFO L273 TraceCheckUtils]: 88: Hoare triple {33518#(and (or (< 50 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 50)))} assume i <= n * 4; {33518#(and (or (< 50 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 50)))} is VALID [2019-02-27 13:05:39,012 INFO L273 TraceCheckUtils]: 89: Hoare triple {33518#(and (or (< 50 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 50)))} assume a[i] != 23;i := i + 4; {33519#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 50 main_n)) (or (<= main_n 50) (<= main_i 180)))} is VALID [2019-02-27 13:05:39,013 INFO L273 TraceCheckUtils]: 90: Hoare triple {33519#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 50 main_n)) (or (<= main_n 50) (<= main_i 180)))} assume i <= n * 4; {33519#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 50 main_n)) (or (<= main_n 50) (<= main_i 180)))} is VALID [2019-02-27 13:05:39,014 INFO L273 TraceCheckUtils]: 91: Hoare triple {33519#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 50 main_n)) (or (<= main_n 50) (<= main_i 180)))} assume a[i] != 23;i := i + 4; {33520#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 50 main_n)) (or (<= main_i 184) (<= main_n 50)))} is VALID [2019-02-27 13:05:39,015 INFO L273 TraceCheckUtils]: 92: Hoare triple {33520#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 50 main_n)) (or (<= main_i 184) (<= main_n 50)))} assume i <= n * 4; {33520#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 50 main_n)) (or (<= main_i 184) (<= main_n 50)))} is VALID [2019-02-27 13:05:39,016 INFO L273 TraceCheckUtils]: 93: Hoare triple {33520#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 50 main_n)) (or (<= main_i 184) (<= main_n 50)))} assume a[i] != 23;i := i + 4; {33521#(and (or (<= main_i 188) (<= main_n 50)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i)) (< 50 main_n)))} is VALID [2019-02-27 13:05:39,017 INFO L273 TraceCheckUtils]: 94: Hoare triple {33521#(and (or (<= main_i 188) (<= main_n 50)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i)) (< 50 main_n)))} assume i <= n * 4; {33521#(and (or (<= main_i 188) (<= main_n 50)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i)) (< 50 main_n)))} is VALID [2019-02-27 13:05:39,018 INFO L273 TraceCheckUtils]: 95: Hoare triple {33521#(and (or (<= main_i 188) (<= main_n 50)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i)) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33522#(and (or (<= main_n 50) (<= main_i 192)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-02-27 13:05:39,018 INFO L273 TraceCheckUtils]: 96: Hoare triple {33522#(and (or (<= main_n 50) (<= main_i 192)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume i <= n * 4; {33522#(and (or (<= main_n 50) (<= main_i 192)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2019-02-27 13:05:39,019 INFO L273 TraceCheckUtils]: 97: Hoare triple {33522#(and (or (<= main_n 50) (<= main_i 192)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33523#(and (or (<= main_n 50) (<= main_i 196)) (or (< 50 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:05:39,020 INFO L273 TraceCheckUtils]: 98: Hoare triple {33523#(and (or (<= main_n 50) (<= main_i 196)) (or (< 50 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {33523#(and (or (<= main_n 50) (<= main_i 196)) (or (< 50 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:05:39,022 INFO L273 TraceCheckUtils]: 99: Hoare triple {33523#(and (or (<= main_n 50) (<= main_i 196)) (or (< 50 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {33524#(and (or (<= main_n 50) (<= main_i 200)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 50 main_n)))} is VALID [2019-02-27 13:05:39,023 INFO L273 TraceCheckUtils]: 100: Hoare triple {33524#(and (or (<= main_n 50) (<= main_i 200)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 50 main_n)))} assume i <= n * 4; {33525#(and (or (< 50 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 200))} is VALID [2019-02-27 13:05:39,024 INFO L273 TraceCheckUtils]: 101: Hoare triple {33525#(and (or (< 50 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 200))} assume a[i] != 23;i := i + 4; {33526#(and (< 50 main_n) (<= main_i 204))} is VALID [2019-02-27 13:05:39,024 INFO L273 TraceCheckUtils]: 102: Hoare triple {33526#(and (< 50 main_n) (<= main_i 204))} assume !(i <= n * 4); {33473#false} is VALID [2019-02-27 13:05:39,075 INFO L134 CoverageAnalysis]: Checked inductivity of 2550 backedges. 0 proven. 2550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:05:39,076 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 13:05:39,076 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 13:05:39,076 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 13:05:39,076 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 13:05:39,076 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 13:05:39,076 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 13:05:39,086 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-27 13:05:39,086 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-27 13:05:39,180 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 51 check-sat command(s) [2019-02-27 13:05:39,180 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 13:05:39,181 WARN L254 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 107 conjunts are in the unsatisfiable core [2019-02-27 13:05:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:05:39,198 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 13:05:39,213 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 13:05:39,215 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 13:05:39,222 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 13:05:39,223 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 13:05:39,224 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 13:05:39,224 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_54]. (and (= main_a (store v_main_a_54 (* 4 main_n) 23)) (= main_i 0)) [2019-02-27 13:05:39,225 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 13:05:43,441 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 13:05:43,443 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 13:05:43,449 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 13:05:43,449 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 13:05:43,452 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 13:05:43,452 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 200 .cse0) (not (= (select main_a 200) 23)) (<= main_i 204) (= 23 (select main_a .cse0)))) [2019-02-27 13:05:43,452 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 200 .cse0)) (<= 200 .cse0) (<= main_i 204))) [2019-02-27 13:05:43,518 INFO L273 TraceCheckUtils]: 0: Hoare triple {33472#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {33530#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,519 INFO L273 TraceCheckUtils]: 1: Hoare triple {33530#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33534#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 13:05:43,519 INFO L273 TraceCheckUtils]: 2: Hoare triple {33534#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {33534#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 13:05:43,520 INFO L273 TraceCheckUtils]: 3: Hoare triple {33534#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {33541#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,520 INFO L273 TraceCheckUtils]: 4: Hoare triple {33541#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33541#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,521 INFO L273 TraceCheckUtils]: 5: Hoare triple {33541#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33548#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 13:05:43,522 INFO L273 TraceCheckUtils]: 6: Hoare triple {33548#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {33548#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 13:05:43,522 INFO L273 TraceCheckUtils]: 7: Hoare triple {33548#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {33555#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,523 INFO L273 TraceCheckUtils]: 8: Hoare triple {33555#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33555#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,524 INFO L273 TraceCheckUtils]: 9: Hoare triple {33555#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33562#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,524 INFO L273 TraceCheckUtils]: 10: Hoare triple {33562#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33562#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,525 INFO L273 TraceCheckUtils]: 11: Hoare triple {33562#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33569#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,526 INFO L273 TraceCheckUtils]: 12: Hoare triple {33569#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33569#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,527 INFO L273 TraceCheckUtils]: 13: Hoare triple {33569#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33576#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,527 INFO L273 TraceCheckUtils]: 14: Hoare triple {33576#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33576#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,528 INFO L273 TraceCheckUtils]: 15: Hoare triple {33576#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33583#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,529 INFO L273 TraceCheckUtils]: 16: Hoare triple {33583#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33583#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,529 INFO L273 TraceCheckUtils]: 17: Hoare triple {33583#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33590#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,530 INFO L273 TraceCheckUtils]: 18: Hoare triple {33590#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33590#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,531 INFO L273 TraceCheckUtils]: 19: Hoare triple {33590#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33597#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,531 INFO L273 TraceCheckUtils]: 20: Hoare triple {33597#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33597#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,532 INFO L273 TraceCheckUtils]: 21: Hoare triple {33597#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33604#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,533 INFO L273 TraceCheckUtils]: 22: Hoare triple {33604#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33604#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,534 INFO L273 TraceCheckUtils]: 23: Hoare triple {33604#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33611#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,534 INFO L273 TraceCheckUtils]: 24: Hoare triple {33611#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33611#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,535 INFO L273 TraceCheckUtils]: 25: Hoare triple {33611#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33618#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,536 INFO L273 TraceCheckUtils]: 26: Hoare triple {33618#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33618#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,536 INFO L273 TraceCheckUtils]: 27: Hoare triple {33618#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33625#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,537 INFO L273 TraceCheckUtils]: 28: Hoare triple {33625#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33625#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,538 INFO L273 TraceCheckUtils]: 29: Hoare triple {33625#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33632#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,538 INFO L273 TraceCheckUtils]: 30: Hoare triple {33632#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33632#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,539 INFO L273 TraceCheckUtils]: 31: Hoare triple {33632#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33639#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,539 INFO L273 TraceCheckUtils]: 32: Hoare triple {33639#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33639#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,540 INFO L273 TraceCheckUtils]: 33: Hoare triple {33639#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33646#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,541 INFO L273 TraceCheckUtils]: 34: Hoare triple {33646#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33646#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,542 INFO L273 TraceCheckUtils]: 35: Hoare triple {33646#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33653#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,542 INFO L273 TraceCheckUtils]: 36: Hoare triple {33653#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33653#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,543 INFO L273 TraceCheckUtils]: 37: Hoare triple {33653#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33660#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,544 INFO L273 TraceCheckUtils]: 38: Hoare triple {33660#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33660#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,544 INFO L273 TraceCheckUtils]: 39: Hoare triple {33660#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33667#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 13:05:43,545 INFO L273 TraceCheckUtils]: 40: Hoare triple {33667#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {33667#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 13:05:43,546 INFO L273 TraceCheckUtils]: 41: Hoare triple {33667#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {33674#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,546 INFO L273 TraceCheckUtils]: 42: Hoare triple {33674#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33674#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,547 INFO L273 TraceCheckUtils]: 43: Hoare triple {33674#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33681#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,548 INFO L273 TraceCheckUtils]: 44: Hoare triple {33681#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33681#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,549 INFO L273 TraceCheckUtils]: 45: Hoare triple {33681#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33688#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,549 INFO L273 TraceCheckUtils]: 46: Hoare triple {33688#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33688#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,550 INFO L273 TraceCheckUtils]: 47: Hoare triple {33688#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33695#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,551 INFO L273 TraceCheckUtils]: 48: Hoare triple {33695#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33695#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,552 INFO L273 TraceCheckUtils]: 49: Hoare triple {33695#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33702#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,552 INFO L273 TraceCheckUtils]: 50: Hoare triple {33702#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33702#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,553 INFO L273 TraceCheckUtils]: 51: Hoare triple {33702#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33709#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,554 INFO L273 TraceCheckUtils]: 52: Hoare triple {33709#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33709#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,554 INFO L273 TraceCheckUtils]: 53: Hoare triple {33709#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33716#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,555 INFO L273 TraceCheckUtils]: 54: Hoare triple {33716#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33716#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,556 INFO L273 TraceCheckUtils]: 55: Hoare triple {33716#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33723#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,557 INFO L273 TraceCheckUtils]: 56: Hoare triple {33723#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33723#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,557 INFO L273 TraceCheckUtils]: 57: Hoare triple {33723#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33730#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,558 INFO L273 TraceCheckUtils]: 58: Hoare triple {33730#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33730#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,559 INFO L273 TraceCheckUtils]: 59: Hoare triple {33730#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33737#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,559 INFO L273 TraceCheckUtils]: 60: Hoare triple {33737#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33737#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,560 INFO L273 TraceCheckUtils]: 61: Hoare triple {33737#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33744#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,561 INFO L273 TraceCheckUtils]: 62: Hoare triple {33744#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33744#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,562 INFO L273 TraceCheckUtils]: 63: Hoare triple {33744#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33751#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,562 INFO L273 TraceCheckUtils]: 64: Hoare triple {33751#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33751#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,563 INFO L273 TraceCheckUtils]: 65: Hoare triple {33751#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33758#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,564 INFO L273 TraceCheckUtils]: 66: Hoare triple {33758#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33758#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,565 INFO L273 TraceCheckUtils]: 67: Hoare triple {33758#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33765#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,565 INFO L273 TraceCheckUtils]: 68: Hoare triple {33765#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33765#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,566 INFO L273 TraceCheckUtils]: 69: Hoare triple {33765#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33772#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 13:05:43,567 INFO L273 TraceCheckUtils]: 70: Hoare triple {33772#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {33772#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 13:05:43,568 INFO L273 TraceCheckUtils]: 71: Hoare triple {33772#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {33779#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,568 INFO L273 TraceCheckUtils]: 72: Hoare triple {33779#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33779#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,569 INFO L273 TraceCheckUtils]: 73: Hoare triple {33779#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33786#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,570 INFO L273 TraceCheckUtils]: 74: Hoare triple {33786#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33786#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,570 INFO L273 TraceCheckUtils]: 75: Hoare triple {33786#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33793#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,571 INFO L273 TraceCheckUtils]: 76: Hoare triple {33793#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33793#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,572 INFO L273 TraceCheckUtils]: 77: Hoare triple {33793#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33800#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,572 INFO L273 TraceCheckUtils]: 78: Hoare triple {33800#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33800#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,573 INFO L273 TraceCheckUtils]: 79: Hoare triple {33800#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33807#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,574 INFO L273 TraceCheckUtils]: 80: Hoare triple {33807#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33807#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,574 INFO L273 TraceCheckUtils]: 81: Hoare triple {33807#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33814#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-02-27 13:05:43,575 INFO L273 TraceCheckUtils]: 82: Hoare triple {33814#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {33814#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-02-27 13:05:43,576 INFO L273 TraceCheckUtils]: 83: Hoare triple {33814#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {33821#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,576 INFO L273 TraceCheckUtils]: 84: Hoare triple {33821#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33821#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,577 INFO L273 TraceCheckUtils]: 85: Hoare triple {33821#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33828#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,578 INFO L273 TraceCheckUtils]: 86: Hoare triple {33828#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33828#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,579 INFO L273 TraceCheckUtils]: 87: Hoare triple {33828#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33835#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,579 INFO L273 TraceCheckUtils]: 88: Hoare triple {33835#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33835#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,580 INFO L273 TraceCheckUtils]: 89: Hoare triple {33835#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33842#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,580 INFO L273 TraceCheckUtils]: 90: Hoare triple {33842#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33842#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,581 INFO L273 TraceCheckUtils]: 91: Hoare triple {33842#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33849#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,582 INFO L273 TraceCheckUtils]: 92: Hoare triple {33849#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33849#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,583 INFO L273 TraceCheckUtils]: 93: Hoare triple {33849#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33856#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,583 INFO L273 TraceCheckUtils]: 94: Hoare triple {33856#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33856#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,584 INFO L273 TraceCheckUtils]: 95: Hoare triple {33856#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33863#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,585 INFO L273 TraceCheckUtils]: 96: Hoare triple {33863#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33863#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,585 INFO L273 TraceCheckUtils]: 97: Hoare triple {33863#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33870#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,586 INFO L273 TraceCheckUtils]: 98: Hoare triple {33870#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33870#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,587 INFO L273 TraceCheckUtils]: 99: Hoare triple {33870#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33877#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,587 INFO L273 TraceCheckUtils]: 100: Hoare triple {33877#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33881#(and (= main_i 200) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:05:43,588 INFO L273 TraceCheckUtils]: 101: Hoare triple {33881#(and (= main_i 200) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33526#(and (< 50 main_n) (<= main_i 204))} is VALID [2019-02-27 13:05:43,589 INFO L273 TraceCheckUtils]: 102: Hoare triple {33526#(and (< 50 main_n) (<= main_i 204))} assume !(i <= n * 4); {33473#false} is VALID [2019-02-27 13:05:43,613 INFO L134 CoverageAnalysis]: Checked inductivity of 2550 backedges. 0 proven. 2550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:05:43,613 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 13:05:50,916 INFO L273 TraceCheckUtils]: 102: Hoare triple {33888#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {33473#false} is VALID [2019-02-27 13:05:50,916 INFO L273 TraceCheckUtils]: 101: Hoare triple {33892#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {33888#(<= main_i (* 4 main_n))} is VALID [2019-02-27 13:05:50,917 INFO L273 TraceCheckUtils]: 100: Hoare triple {33896#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {33892#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:05:50,918 INFO L273 TraceCheckUtils]: 99: Hoare triple {33900#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {33896#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:05:50,918 INFO L273 TraceCheckUtils]: 98: Hoare triple {33900#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {33900#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:05:50,919 INFO L273 TraceCheckUtils]: 97: Hoare triple {33907#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {33900#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:05:50,919 INFO L273 TraceCheckUtils]: 96: Hoare triple {33907#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {33907#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:05:50,921 INFO L273 TraceCheckUtils]: 95: Hoare triple {33914#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {33907#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:05:50,921 INFO L273 TraceCheckUtils]: 94: Hoare triple {33914#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {33914#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:05:50,922 INFO L273 TraceCheckUtils]: 93: Hoare triple {33921#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {33914#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:05:50,923 INFO L273 TraceCheckUtils]: 92: Hoare triple {33921#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {33921#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:05:50,924 INFO L273 TraceCheckUtils]: 91: Hoare triple {33928#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {33921#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:05:50,924 INFO L273 TraceCheckUtils]: 90: Hoare triple {33928#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {33928#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:05:50,925 INFO L273 TraceCheckUtils]: 89: Hoare triple {33935#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {33928#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:05:50,926 INFO L273 TraceCheckUtils]: 88: Hoare triple {33935#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {33935#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:05:50,927 INFO L273 TraceCheckUtils]: 87: Hoare triple {33942#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {33935#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:05:50,928 INFO L273 TraceCheckUtils]: 86: Hoare triple {33942#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {33942#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:05:50,929 INFO L273 TraceCheckUtils]: 85: Hoare triple {33949#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {33942#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:05:50,929 INFO L273 TraceCheckUtils]: 84: Hoare triple {33949#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {33949#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:05:50,930 INFO L273 TraceCheckUtils]: 83: Hoare triple {33956#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {33949#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:05:50,931 INFO L273 TraceCheckUtils]: 82: Hoare triple {33956#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {33956#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:05:50,932 INFO L273 TraceCheckUtils]: 81: Hoare triple {33963#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {33956#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:05:50,932 INFO L273 TraceCheckUtils]: 80: Hoare triple {33963#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {33963#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:05:50,933 INFO L273 TraceCheckUtils]: 79: Hoare triple {33970#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {33963#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:05:50,934 INFO L273 TraceCheckUtils]: 78: Hoare triple {33970#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {33970#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:05:50,935 INFO L273 TraceCheckUtils]: 77: Hoare triple {33977#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {33970#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:05:50,935 INFO L273 TraceCheckUtils]: 76: Hoare triple {33977#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {33977#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:05:50,937 INFO L273 TraceCheckUtils]: 75: Hoare triple {33984#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {33977#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:05:50,937 INFO L273 TraceCheckUtils]: 74: Hoare triple {33984#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {33984#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:05:50,938 INFO L273 TraceCheckUtils]: 73: Hoare triple {33991#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {33984#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:05:50,939 INFO L273 TraceCheckUtils]: 72: Hoare triple {33991#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {33991#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:05:50,940 INFO L273 TraceCheckUtils]: 71: Hoare triple {33998#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {33991#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:05:50,940 INFO L273 TraceCheckUtils]: 70: Hoare triple {33998#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {33998#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:05:50,941 INFO L273 TraceCheckUtils]: 69: Hoare triple {34005#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {33998#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:05:50,942 INFO L273 TraceCheckUtils]: 68: Hoare triple {34005#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {34005#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:05:50,943 INFO L273 TraceCheckUtils]: 67: Hoare triple {34012#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {34005#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:05:50,944 INFO L273 TraceCheckUtils]: 66: Hoare triple {34012#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {34012#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:05:50,945 INFO L273 TraceCheckUtils]: 65: Hoare triple {34019#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {34012#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:05:50,945 INFO L273 TraceCheckUtils]: 64: Hoare triple {34019#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {34019#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:05:50,946 INFO L273 TraceCheckUtils]: 63: Hoare triple {34026#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {34019#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:05:50,947 INFO L273 TraceCheckUtils]: 62: Hoare triple {34026#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {34026#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:05:50,948 INFO L273 TraceCheckUtils]: 61: Hoare triple {34033#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {34026#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:05:50,949 INFO L273 TraceCheckUtils]: 60: Hoare triple {34033#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {34033#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:05:50,950 INFO L273 TraceCheckUtils]: 59: Hoare triple {34040#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {34033#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:05:50,950 INFO L273 TraceCheckUtils]: 58: Hoare triple {34040#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {34040#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:05:50,951 INFO L273 TraceCheckUtils]: 57: Hoare triple {34047#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {34040#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:05:50,952 INFO L273 TraceCheckUtils]: 56: Hoare triple {34047#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {34047#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:05:50,953 INFO L273 TraceCheckUtils]: 55: Hoare triple {34054#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {34047#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:05:50,954 INFO L273 TraceCheckUtils]: 54: Hoare triple {34054#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {34054#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:05:50,955 INFO L273 TraceCheckUtils]: 53: Hoare triple {34061#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {34054#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:05:50,955 INFO L273 TraceCheckUtils]: 52: Hoare triple {34061#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {34061#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:05:50,956 INFO L273 TraceCheckUtils]: 51: Hoare triple {34068#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {34061#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:05:50,957 INFO L273 TraceCheckUtils]: 50: Hoare triple {34068#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {34068#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:05:50,958 INFO L273 TraceCheckUtils]: 49: Hoare triple {34075#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {34068#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:05:50,959 INFO L273 TraceCheckUtils]: 48: Hoare triple {34075#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {34075#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:05:50,960 INFO L273 TraceCheckUtils]: 47: Hoare triple {34082#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {34075#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:05:50,960 INFO L273 TraceCheckUtils]: 46: Hoare triple {34082#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {34082#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:05:50,961 INFO L273 TraceCheckUtils]: 45: Hoare triple {34089#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {34082#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:05:50,962 INFO L273 TraceCheckUtils]: 44: Hoare triple {34089#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {34089#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:05:50,963 INFO L273 TraceCheckUtils]: 43: Hoare triple {34096#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {34089#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:05:50,964 INFO L273 TraceCheckUtils]: 42: Hoare triple {34096#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {34096#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:05:50,965 INFO L273 TraceCheckUtils]: 41: Hoare triple {34103#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {34096#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:05:50,965 INFO L273 TraceCheckUtils]: 40: Hoare triple {34103#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {34103#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:05:50,966 INFO L273 TraceCheckUtils]: 39: Hoare triple {34110#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {34103#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:05:50,967 INFO L273 TraceCheckUtils]: 38: Hoare triple {34110#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {34110#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:05:50,968 INFO L273 TraceCheckUtils]: 37: Hoare triple {34117#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {34110#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:05:50,968 INFO L273 TraceCheckUtils]: 36: Hoare triple {34117#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {34117#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:05:50,970 INFO L273 TraceCheckUtils]: 35: Hoare triple {34124#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {34117#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:05:50,970 INFO L273 TraceCheckUtils]: 34: Hoare triple {34124#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {34124#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:05:50,971 INFO L273 TraceCheckUtils]: 33: Hoare triple {34131#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {34124#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:05:50,972 INFO L273 TraceCheckUtils]: 32: Hoare triple {34131#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {34131#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:05:50,973 INFO L273 TraceCheckUtils]: 31: Hoare triple {34138#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {34131#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:05:50,973 INFO L273 TraceCheckUtils]: 30: Hoare triple {34138#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {34138#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:05:50,974 INFO L273 TraceCheckUtils]: 29: Hoare triple {34145#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {34138#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:05:50,975 INFO L273 TraceCheckUtils]: 28: Hoare triple {34145#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {34145#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:05:50,976 INFO L273 TraceCheckUtils]: 27: Hoare triple {34152#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {34145#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:05:50,977 INFO L273 TraceCheckUtils]: 26: Hoare triple {34152#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {34152#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-02-27 13:05:50,978 INFO L273 TraceCheckUtils]: 25: Hoare triple {34159#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {34152#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-02-27 13:05:50,978 INFO L273 TraceCheckUtils]: 24: Hoare triple {34159#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {34159#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-02-27 13:05:50,979 INFO L273 TraceCheckUtils]: 23: Hoare triple {34166#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {34159#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-02-27 13:05:50,980 INFO L273 TraceCheckUtils]: 22: Hoare triple {34166#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {34166#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-02-27 13:05:50,981 INFO L273 TraceCheckUtils]: 21: Hoare triple {34173#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {34166#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-02-27 13:05:50,981 INFO L273 TraceCheckUtils]: 20: Hoare triple {34173#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {34173#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-02-27 13:05:50,982 INFO L273 TraceCheckUtils]: 19: Hoare triple {34180#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {34173#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-02-27 13:05:50,983 INFO L273 TraceCheckUtils]: 18: Hoare triple {34180#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {34180#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-02-27 13:05:50,984 INFO L273 TraceCheckUtils]: 17: Hoare triple {34187#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {34180#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-02-27 13:05:50,985 INFO L273 TraceCheckUtils]: 16: Hoare triple {34187#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume i <= n * 4; {34187#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-02-27 13:05:50,986 INFO L273 TraceCheckUtils]: 15: Hoare triple {34194#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {34187#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-02-27 13:05:50,986 INFO L273 TraceCheckUtils]: 14: Hoare triple {34194#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume i <= n * 4; {34194#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-02-27 13:05:50,987 INFO L273 TraceCheckUtils]: 13: Hoare triple {34201#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume a[i] != 23;i := i + 4; {34194#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-02-27 13:05:50,988 INFO L273 TraceCheckUtils]: 12: Hoare triple {34201#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume i <= n * 4; {34201#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-02-27 13:05:50,989 INFO L273 TraceCheckUtils]: 11: Hoare triple {34208#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume a[i] != 23;i := i + 4; {34201#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-02-27 13:05:50,990 INFO L273 TraceCheckUtils]: 10: Hoare triple {34208#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume i <= n * 4; {34208#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-02-27 13:05:50,991 INFO L273 TraceCheckUtils]: 9: Hoare triple {34215#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume a[i] != 23;i := i + 4; {34208#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-02-27 13:05:50,991 INFO L273 TraceCheckUtils]: 8: Hoare triple {34215#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume i <= n * 4; {34215#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2019-02-27 13:05:50,992 INFO L273 TraceCheckUtils]: 7: Hoare triple {34222#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume a[i] != 23;i := i + 4; {34215#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2019-02-27 13:05:50,993 INFO L273 TraceCheckUtils]: 6: Hoare triple {34222#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume i <= n * 4; {34222#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2019-02-27 13:05:50,994 INFO L273 TraceCheckUtils]: 5: Hoare triple {34229#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} assume a[i] != 23;i := i + 4; {34222#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2019-02-27 13:05:50,994 INFO L273 TraceCheckUtils]: 4: Hoare triple {34229#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} assume i <= n * 4; {34229#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} is VALID [2019-02-27 13:05:50,995 INFO L273 TraceCheckUtils]: 3: Hoare triple {34236#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} assume a[i] != 23;i := i + 4; {34229#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} is VALID [2019-02-27 13:05:50,996 INFO L273 TraceCheckUtils]: 2: Hoare triple {34236#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} assume i <= n * 4; {34236#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} is VALID [2019-02-27 13:05:50,997 INFO L273 TraceCheckUtils]: 1: Hoare triple {34243#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} assume a[i] != 23;i := i + 4; {34236#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} is VALID [2019-02-27 13:05:50,998 INFO L273 TraceCheckUtils]: 0: Hoare triple {33472#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {34243#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} is VALID [2019-02-27 13:05:51,036 INFO L134 CoverageAnalysis]: Checked inductivity of 2550 backedges. 0 proven. 2550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:05:51,054 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 13:05:51,054 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 158 [2019-02-27 13:05:51,054 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 13:05:51,055 INFO L78 Accepts]: Start accepts. Automaton has 107 states. Word has length 103 [2019-02-27 13:05:51,055 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 13:05:51,055 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 107 states. [2019-02-27 13:05:51,338 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 205 edges. 205 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 13:05:51,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 107 states [2019-02-27 13:05:51,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2019-02-27 13:05:51,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3082, Invalid=22358, Unknown=0, NotChecked=0, Total=25440 [2019-02-27 13:05:51,340 INFO L87 Difference]: Start difference. First operand 104 states and 104 transitions. Second operand 107 states. [2019-02-27 13:06:13,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:06:13,273 INFO L93 Difference]: Finished difference Result 108 states and 108 transitions. [2019-02-27 13:06:13,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2019-02-27 13:06:13,273 INFO L78 Accepts]: Start accepts. Automaton has 107 states. Word has length 103 [2019-02-27 13:06:13,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 13:06:13,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-02-27 13:06:13,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 108 transitions. [2019-02-27 13:06:13,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-02-27 13:06:13,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 108 transitions. [2019-02-27 13:06:13,276 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 55 states and 108 transitions. [2019-02-27 13:06:13,394 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 108 edges. 108 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 13:06:13,396 INFO L225 Difference]: With dead ends: 108 [2019-02-27 13:06:13,396 INFO L226 Difference]: Without dead ends: 107 [2019-02-27 13:06:13,397 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5720 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=3082, Invalid=22358, Unknown=0, NotChecked=0, Total=25440 [2019-02-27 13:06:13,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2019-02-27 13:06:13,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 106. [2019-02-27 13:06:13,502 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 13:06:13,502 INFO L82 GeneralOperation]: Start isEquivalent. First operand 107 states. Second operand 106 states. [2019-02-27 13:06:13,502 INFO L74 IsIncluded]: Start isIncluded. First operand 107 states. Second operand 106 states. [2019-02-27 13:06:13,502 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 106 states. [2019-02-27 13:06:13,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:06:13,504 INFO L93 Difference]: Finished difference Result 107 states and 107 transitions. [2019-02-27 13:06:13,504 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 107 transitions. [2019-02-27 13:06:13,504 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 13:06:13,504 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 13:06:13,505 INFO L74 IsIncluded]: Start isIncluded. First operand 106 states. Second operand 107 states. [2019-02-27 13:06:13,505 INFO L87 Difference]: Start difference. First operand 106 states. Second operand 107 states. [2019-02-27 13:06:13,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:06:13,506 INFO L93 Difference]: Finished difference Result 107 states and 107 transitions. [2019-02-27 13:06:13,506 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 107 transitions. [2019-02-27 13:06:13,506 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 13:06:13,507 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 13:06:13,507 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 13:06:13,507 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 13:06:13,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-02-27 13:06:13,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 106 transitions. [2019-02-27 13:06:13,508 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 106 transitions. Word has length 103 [2019-02-27 13:06:13,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 13:06:13,508 INFO L480 AbstractCegarLoop]: Abstraction has 106 states and 106 transitions. [2019-02-27 13:06:13,508 INFO L481 AbstractCegarLoop]: Interpolant automaton has 107 states. [2019-02-27 13:06:13,508 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 106 transitions. [2019-02-27 13:06:13,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-02-27 13:06:13,509 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 13:06:13,509 INFO L402 BasicCegarLoop]: trace histogram [52, 51, 1, 1] [2019-02-27 13:06:13,509 INFO L423 AbstractCegarLoop]: === Iteration 52 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 13:06:13,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 13:06:13,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1799123078, now seen corresponding path program 51 times [2019-02-27 13:06:13,510 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 13:06:13,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 13:06:13,510 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 13:06:13,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 13:06:13,510 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 13:06:13,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:06:16,781 INFO L273 TraceCheckUtils]: 0: Hoare triple {34779#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {34781#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 0)))} is VALID [2019-02-27 13:06:16,782 INFO L273 TraceCheckUtils]: 1: Hoare triple {34781#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 0)))} assume a[i] != 23;i := i + 4; {34782#(and (or (<= main_n 51) (<= main_i 4)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2019-02-27 13:06:16,783 INFO L273 TraceCheckUtils]: 2: Hoare triple {34782#(and (or (<= main_n 51) (<= main_i 4)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume i <= n * 4; {34782#(and (or (<= main_n 51) (<= main_i 4)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2019-02-27 13:06:16,784 INFO L273 TraceCheckUtils]: 3: Hoare triple {34782#(and (or (<= main_n 51) (<= main_i 4)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume a[i] != 23;i := i + 4; {34783#(and (or (<= main_i 8) (<= main_n 51)) (or (< 51 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:16,785 INFO L273 TraceCheckUtils]: 4: Hoare triple {34783#(and (or (<= main_i 8) (<= main_n 51)) (or (< 51 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34783#(and (or (<= main_i 8) (<= main_n 51)) (or (< 51 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:16,786 INFO L273 TraceCheckUtils]: 5: Hoare triple {34783#(and (or (<= main_i 8) (<= main_n 51)) (or (< 51 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34784#(and (or (< 51 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 12)))} is VALID [2019-02-27 13:06:16,787 INFO L273 TraceCheckUtils]: 6: Hoare triple {34784#(and (or (< 51 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 12)))} assume i <= n * 4; {34784#(and (or (< 51 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 12)))} is VALID [2019-02-27 13:06:16,788 INFO L273 TraceCheckUtils]: 7: Hoare triple {34784#(and (or (< 51 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {34785#(and (or (< 51 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 16)))} is VALID [2019-02-27 13:06:16,789 INFO L273 TraceCheckUtils]: 8: Hoare triple {34785#(and (or (< 51 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 16)))} assume i <= n * 4; {34785#(and (or (< 51 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 16)))} is VALID [2019-02-27 13:06:16,790 INFO L273 TraceCheckUtils]: 9: Hoare triple {34785#(and (or (< 51 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {34786#(and (or (<= main_n 51) (<= main_i 20)) (or (< 51 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:16,790 INFO L273 TraceCheckUtils]: 10: Hoare triple {34786#(and (or (<= main_n 51) (<= main_i 20)) (or (< 51 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34786#(and (or (<= main_n 51) (<= main_i 20)) (or (< 51 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:16,792 INFO L273 TraceCheckUtils]: 11: Hoare triple {34786#(and (or (<= main_n 51) (<= main_i 20)) (or (< 51 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34787#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 24)))} is VALID [2019-02-27 13:06:16,792 INFO L273 TraceCheckUtils]: 12: Hoare triple {34787#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 24)))} assume i <= n * 4; {34787#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 24)))} is VALID [2019-02-27 13:06:16,793 INFO L273 TraceCheckUtils]: 13: Hoare triple {34787#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 24)))} assume a[i] != 23;i := i + 4; {34788#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 28)))} is VALID [2019-02-27 13:06:16,794 INFO L273 TraceCheckUtils]: 14: Hoare triple {34788#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 28)))} assume i <= n * 4; {34788#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 28)))} is VALID [2019-02-27 13:06:16,795 INFO L273 TraceCheckUtils]: 15: Hoare triple {34788#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {34789#(and (or (<= main_i 32) (<= main_n 51)) (or (< 51 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:16,796 INFO L273 TraceCheckUtils]: 16: Hoare triple {34789#(and (or (<= main_i 32) (<= main_n 51)) (or (< 51 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34789#(and (or (<= main_i 32) (<= main_n 51)) (or (< 51 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:16,797 INFO L273 TraceCheckUtils]: 17: Hoare triple {34789#(and (or (<= main_i 32) (<= main_n 51)) (or (< 51 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34790#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 51 main_n)) (or (<= main_i 36) (<= main_n 51)))} is VALID [2019-02-27 13:06:16,798 INFO L273 TraceCheckUtils]: 18: Hoare triple {34790#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 51 main_n)) (or (<= main_i 36) (<= main_n 51)))} assume i <= n * 4; {34790#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 51 main_n)) (or (<= main_i 36) (<= main_n 51)))} is VALID [2019-02-27 13:06:16,799 INFO L273 TraceCheckUtils]: 19: Hoare triple {34790#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 51 main_n)) (or (<= main_i 36) (<= main_n 51)))} assume a[i] != 23;i := i + 4; {34791#(and (or (<= main_i 40) (<= main_n 51)) (or (< 51 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:16,800 INFO L273 TraceCheckUtils]: 20: Hoare triple {34791#(and (or (<= main_i 40) (<= main_n 51)) (or (< 51 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34791#(and (or (<= main_i 40) (<= main_n 51)) (or (< 51 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:16,801 INFO L273 TraceCheckUtils]: 21: Hoare triple {34791#(and (or (<= main_i 40) (<= main_n 51)) (or (< 51 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34792#(and (or (<= main_n 51) (<= main_i 44)) (or (< 51 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:16,802 INFO L273 TraceCheckUtils]: 22: Hoare triple {34792#(and (or (<= main_n 51) (<= main_i 44)) (or (< 51 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34792#(and (or (<= main_n 51) (<= main_i 44)) (or (< 51 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:16,803 INFO L273 TraceCheckUtils]: 23: Hoare triple {34792#(and (or (<= main_n 51) (<= main_i 44)) (or (< 51 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34793#(and (or (<= main_n 51) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-02-27 13:06:16,804 INFO L273 TraceCheckUtils]: 24: Hoare triple {34793#(and (or (<= main_n 51) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume i <= n * 4; {34793#(and (or (<= main_n 51) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-02-27 13:06:16,805 INFO L273 TraceCheckUtils]: 25: Hoare triple {34793#(and (or (<= main_n 51) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume a[i] != 23;i := i + 4; {34794#(and (or (<= main_i 52) (<= main_n 51)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-02-27 13:06:16,805 INFO L273 TraceCheckUtils]: 26: Hoare triple {34794#(and (or (<= main_i 52) (<= main_n 51)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume i <= n * 4; {34794#(and (or (<= main_i 52) (<= main_n 51)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-02-27 13:06:16,807 INFO L273 TraceCheckUtils]: 27: Hoare triple {34794#(and (or (<= main_i 52) (<= main_n 51)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume a[i] != 23;i := i + 4; {34795#(and (or (<= main_n 51) (<= main_i 56)) (or (< 51 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:16,807 INFO L273 TraceCheckUtils]: 28: Hoare triple {34795#(and (or (<= main_n 51) (<= main_i 56)) (or (< 51 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34795#(and (or (<= main_n 51) (<= main_i 56)) (or (< 51 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:16,808 INFO L273 TraceCheckUtils]: 29: Hoare triple {34795#(and (or (<= main_n 51) (<= main_i 56)) (or (< 51 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34796#(and (or (< 51 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 60)))} is VALID [2019-02-27 13:06:16,809 INFO L273 TraceCheckUtils]: 30: Hoare triple {34796#(and (or (< 51 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 60)))} assume i <= n * 4; {34796#(and (or (< 51 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 60)))} is VALID [2019-02-27 13:06:16,810 INFO L273 TraceCheckUtils]: 31: Hoare triple {34796#(and (or (< 51 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 60)))} assume a[i] != 23;i := i + 4; {34797#(and (or (<= main_n 51) (<= main_i 64)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-02-27 13:06:16,811 INFO L273 TraceCheckUtils]: 32: Hoare triple {34797#(and (or (<= main_n 51) (<= main_i 64)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume i <= n * 4; {34797#(and (or (<= main_n 51) (<= main_i 64)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-02-27 13:06:16,812 INFO L273 TraceCheckUtils]: 33: Hoare triple {34797#(and (or (<= main_n 51) (<= main_i 64)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume a[i] != 23;i := i + 4; {34798#(and (or (<= main_n 51) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-02-27 13:06:16,813 INFO L273 TraceCheckUtils]: 34: Hoare triple {34798#(and (or (<= main_n 51) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume i <= n * 4; {34798#(and (or (<= main_n 51) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-02-27 13:06:16,814 INFO L273 TraceCheckUtils]: 35: Hoare triple {34798#(and (or (<= main_n 51) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume a[i] != 23;i := i + 4; {34799#(and (or (<= main_n 51) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-02-27 13:06:16,814 INFO L273 TraceCheckUtils]: 36: Hoare triple {34799#(and (or (<= main_n 51) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume i <= n * 4; {34799#(and (or (<= main_n 51) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-02-27 13:06:16,815 INFO L273 TraceCheckUtils]: 37: Hoare triple {34799#(and (or (<= main_n 51) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume a[i] != 23;i := i + 4; {34800#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_i 76) (<= main_n 51)))} is VALID [2019-02-27 13:06:16,816 INFO L273 TraceCheckUtils]: 38: Hoare triple {34800#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_i 76) (<= main_n 51)))} assume i <= n * 4; {34800#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_i 76) (<= main_n 51)))} is VALID [2019-02-27 13:06:16,817 INFO L273 TraceCheckUtils]: 39: Hoare triple {34800#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_i 76) (<= main_n 51)))} assume a[i] != 23;i := i + 4; {34801#(and (or (< 51 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 80)))} is VALID [2019-02-27 13:06:16,818 INFO L273 TraceCheckUtils]: 40: Hoare triple {34801#(and (or (< 51 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 80)))} assume i <= n * 4; {34801#(and (or (< 51 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 80)))} is VALID [2019-02-27 13:06:16,819 INFO L273 TraceCheckUtils]: 41: Hoare triple {34801#(and (or (< 51 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 80)))} assume a[i] != 23;i := i + 4; {34802#(and (or (<= main_i 84) (<= main_n 51)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 51 main_n)))} is VALID [2019-02-27 13:06:16,820 INFO L273 TraceCheckUtils]: 42: Hoare triple {34802#(and (or (<= main_i 84) (<= main_n 51)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 51 main_n)))} assume i <= n * 4; {34802#(and (or (<= main_i 84) (<= main_n 51)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 51 main_n)))} is VALID [2019-02-27 13:06:16,821 INFO L273 TraceCheckUtils]: 43: Hoare triple {34802#(and (or (<= main_i 84) (<= main_n 51)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 51 main_n)))} assume a[i] != 23;i := i + 4; {34803#(and (or (<= main_i 88) (<= main_n 51)) (or (< 51 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:16,822 INFO L273 TraceCheckUtils]: 44: Hoare triple {34803#(and (or (<= main_i 88) (<= main_n 51)) (or (< 51 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34803#(and (or (<= main_i 88) (<= main_n 51)) (or (< 51 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:16,823 INFO L273 TraceCheckUtils]: 45: Hoare triple {34803#(and (or (<= main_i 88) (<= main_n 51)) (or (< 51 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34804#(and (or (<= main_i 92) (<= main_n 51)) (or (< 51 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:16,824 INFO L273 TraceCheckUtils]: 46: Hoare triple {34804#(and (or (<= main_i 92) (<= main_n 51)) (or (< 51 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34804#(and (or (<= main_i 92) (<= main_n 51)) (or (< 51 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:16,825 INFO L273 TraceCheckUtils]: 47: Hoare triple {34804#(and (or (<= main_i 92) (<= main_n 51)) (or (< 51 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34805#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_i 96) (<= main_n 51)))} is VALID [2019-02-27 13:06:16,826 INFO L273 TraceCheckUtils]: 48: Hoare triple {34805#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_i 96) (<= main_n 51)))} assume i <= n * 4; {34805#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_i 96) (<= main_n 51)))} is VALID [2019-02-27 13:06:16,827 INFO L273 TraceCheckUtils]: 49: Hoare triple {34805#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_i 96) (<= main_n 51)))} assume a[i] != 23;i := i + 4; {34806#(and (or (<= main_i 100) (<= main_n 51)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-02-27 13:06:16,827 INFO L273 TraceCheckUtils]: 50: Hoare triple {34806#(and (or (<= main_i 100) (<= main_n 51)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume i <= n * 4; {34806#(and (or (<= main_i 100) (<= main_n 51)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-02-27 13:06:16,829 INFO L273 TraceCheckUtils]: 51: Hoare triple {34806#(and (or (<= main_i 100) (<= main_n 51)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume a[i] != 23;i := i + 4; {34807#(and (or (<= main_i 104) (<= main_n 51)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-02-27 13:06:16,829 INFO L273 TraceCheckUtils]: 52: Hoare triple {34807#(and (or (<= main_i 104) (<= main_n 51)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume i <= n * 4; {34807#(and (or (<= main_i 104) (<= main_n 51)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-02-27 13:06:16,830 INFO L273 TraceCheckUtils]: 53: Hoare triple {34807#(and (or (<= main_i 104) (<= main_n 51)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume a[i] != 23;i := i + 4; {34808#(and (or (<= main_n 51) (<= main_i 108)) (or (< 51 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:16,831 INFO L273 TraceCheckUtils]: 54: Hoare triple {34808#(and (or (<= main_n 51) (<= main_i 108)) (or (< 51 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34808#(and (or (<= main_n 51) (<= main_i 108)) (or (< 51 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:16,832 INFO L273 TraceCheckUtils]: 55: Hoare triple {34808#(and (or (<= main_n 51) (<= main_i 108)) (or (< 51 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34809#(and (or (<= main_n 51) (<= main_i 112)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} is VALID [2019-02-27 13:06:16,833 INFO L273 TraceCheckUtils]: 56: Hoare triple {34809#(and (or (<= main_n 51) (<= main_i 112)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} assume i <= n * 4; {34809#(and (or (<= main_n 51) (<= main_i 112)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} is VALID [2019-02-27 13:06:16,834 INFO L273 TraceCheckUtils]: 57: Hoare triple {34809#(and (or (<= main_n 51) (<= main_i 112)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} assume a[i] != 23;i := i + 4; {34810#(and (or (<= main_n 51) (<= main_i 116)) (or (< 51 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:16,835 INFO L273 TraceCheckUtils]: 58: Hoare triple {34810#(and (or (<= main_n 51) (<= main_i 116)) (or (< 51 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34810#(and (or (<= main_n 51) (<= main_i 116)) (or (< 51 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:16,836 INFO L273 TraceCheckUtils]: 59: Hoare triple {34810#(and (or (<= main_n 51) (<= main_i 116)) (or (< 51 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34811#(and (or (< 51 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 51)))} is VALID [2019-02-27 13:06:16,837 INFO L273 TraceCheckUtils]: 60: Hoare triple {34811#(and (or (< 51 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 51)))} assume i <= n * 4; {34811#(and (or (< 51 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 51)))} is VALID [2019-02-27 13:06:16,838 INFO L273 TraceCheckUtils]: 61: Hoare triple {34811#(and (or (< 51 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 51)))} assume a[i] != 23;i := i + 4; {34812#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 124)))} is VALID [2019-02-27 13:06:16,838 INFO L273 TraceCheckUtils]: 62: Hoare triple {34812#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 124)))} assume i <= n * 4; {34812#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 124)))} is VALID [2019-02-27 13:06:16,839 INFO L273 TraceCheckUtils]: 63: Hoare triple {34812#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 124)))} assume a[i] != 23;i := i + 4; {34813#(and (or (<= main_n 51) (<= main_i 128)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} is VALID [2019-02-27 13:06:16,840 INFO L273 TraceCheckUtils]: 64: Hoare triple {34813#(and (or (<= main_n 51) (<= main_i 128)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} assume i <= n * 4; {34813#(and (or (<= main_n 51) (<= main_i 128)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} is VALID [2019-02-27 13:06:16,841 INFO L273 TraceCheckUtils]: 65: Hoare triple {34813#(and (or (<= main_n 51) (<= main_i 128)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} assume a[i] != 23;i := i + 4; {34814#(and (or (<= main_i 132) (<= main_n 51)) (or (< 51 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:16,842 INFO L273 TraceCheckUtils]: 66: Hoare triple {34814#(and (or (<= main_i 132) (<= main_n 51)) (or (< 51 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34814#(and (or (<= main_i 132) (<= main_n 51)) (or (< 51 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:16,843 INFO L273 TraceCheckUtils]: 67: Hoare triple {34814#(and (or (<= main_i 132) (<= main_n 51)) (or (< 51 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34815#(and (or (< 51 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 51)))} is VALID [2019-02-27 13:06:16,844 INFO L273 TraceCheckUtils]: 68: Hoare triple {34815#(and (or (< 51 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 51)))} assume i <= n * 4; {34815#(and (or (< 51 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 51)))} is VALID [2019-02-27 13:06:16,845 INFO L273 TraceCheckUtils]: 69: Hoare triple {34815#(and (or (< 51 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 51)))} assume a[i] != 23;i := i + 4; {34816#(and (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 51) (<= main_i 140)))} is VALID [2019-02-27 13:06:16,846 INFO L273 TraceCheckUtils]: 70: Hoare triple {34816#(and (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 51) (<= main_i 140)))} assume i <= n * 4; {34816#(and (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 51) (<= main_i 140)))} is VALID [2019-02-27 13:06:16,847 INFO L273 TraceCheckUtils]: 71: Hoare triple {34816#(and (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 51) (<= main_i 140)))} assume a[i] != 23;i := i + 4; {34817#(and (or (<= main_n 51) (<= main_i 144)) (or (< 51 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:16,848 INFO L273 TraceCheckUtils]: 72: Hoare triple {34817#(and (or (<= main_n 51) (<= main_i 144)) (or (< 51 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34817#(and (or (<= main_n 51) (<= main_i 144)) (or (< 51 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:16,849 INFO L273 TraceCheckUtils]: 73: Hoare triple {34817#(and (or (<= main_n 51) (<= main_i 144)) (or (< 51 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34818#(and (or (< 51 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 148)))} is VALID [2019-02-27 13:06:16,849 INFO L273 TraceCheckUtils]: 74: Hoare triple {34818#(and (or (< 51 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 148)))} assume i <= n * 4; {34818#(and (or (< 51 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 148)))} is VALID [2019-02-27 13:06:16,851 INFO L273 TraceCheckUtils]: 75: Hoare triple {34818#(and (or (< 51 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 148)))} assume a[i] != 23;i := i + 4; {34819#(and (or (<= main_n 51) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-02-27 13:06:16,851 INFO L273 TraceCheckUtils]: 76: Hoare triple {34819#(and (or (<= main_n 51) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume i <= n * 4; {34819#(and (or (<= main_n 51) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-02-27 13:06:16,852 INFO L273 TraceCheckUtils]: 77: Hoare triple {34819#(and (or (<= main_n 51) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume a[i] != 23;i := i + 4; {34820#(and (or (< 51 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 51)))} is VALID [2019-02-27 13:06:16,853 INFO L273 TraceCheckUtils]: 78: Hoare triple {34820#(and (or (< 51 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 51)))} assume i <= n * 4; {34820#(and (or (< 51 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 51)))} is VALID [2019-02-27 13:06:16,854 INFO L273 TraceCheckUtils]: 79: Hoare triple {34820#(and (or (< 51 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 51)))} assume a[i] != 23;i := i + 4; {34821#(and (or (<= main_n 51) (<= main_i 160)) (or (< 51 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:16,855 INFO L273 TraceCheckUtils]: 80: Hoare triple {34821#(and (or (<= main_n 51) (<= main_i 160)) (or (< 51 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34821#(and (or (<= main_n 51) (<= main_i 160)) (or (< 51 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:16,856 INFO L273 TraceCheckUtils]: 81: Hoare triple {34821#(and (or (<= main_n 51) (<= main_i 160)) (or (< 51 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34822#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 164)))} is VALID [2019-02-27 13:06:16,857 INFO L273 TraceCheckUtils]: 82: Hoare triple {34822#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 164)))} assume i <= n * 4; {34822#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 164)))} is VALID [2019-02-27 13:06:16,858 INFO L273 TraceCheckUtils]: 83: Hoare triple {34822#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 164)))} assume a[i] != 23;i := i + 4; {34823#(and (or (<= main_n 51) (<= main_i 168)) (or (< 51 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:16,859 INFO L273 TraceCheckUtils]: 84: Hoare triple {34823#(and (or (<= main_n 51) (<= main_i 168)) (or (< 51 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34823#(and (or (<= main_n 51) (<= main_i 168)) (or (< 51 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:16,860 INFO L273 TraceCheckUtils]: 85: Hoare triple {34823#(and (or (<= main_n 51) (<= main_i 168)) (or (< 51 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34824#(and (or (< 51 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 172)))} is VALID [2019-02-27 13:06:16,861 INFO L273 TraceCheckUtils]: 86: Hoare triple {34824#(and (or (< 51 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 172)))} assume i <= n * 4; {34824#(and (or (< 51 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 172)))} is VALID [2019-02-27 13:06:16,862 INFO L273 TraceCheckUtils]: 87: Hoare triple {34824#(and (or (< 51 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 172)))} assume a[i] != 23;i := i + 4; {34825#(and (or (< 51 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 51)))} is VALID [2019-02-27 13:06:16,862 INFO L273 TraceCheckUtils]: 88: Hoare triple {34825#(and (or (< 51 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 51)))} assume i <= n * 4; {34825#(and (or (< 51 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 51)))} is VALID [2019-02-27 13:06:16,863 INFO L273 TraceCheckUtils]: 89: Hoare triple {34825#(and (or (< 51 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 51)))} assume a[i] != 23;i := i + 4; {34826#(and (or (<= main_n 51) (<= main_i 180)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 51 main_n)))} is VALID [2019-02-27 13:06:16,864 INFO L273 TraceCheckUtils]: 90: Hoare triple {34826#(and (or (<= main_n 51) (<= main_i 180)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 51 main_n)))} assume i <= n * 4; {34826#(and (or (<= main_n 51) (<= main_i 180)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 51 main_n)))} is VALID [2019-02-27 13:06:16,865 INFO L273 TraceCheckUtils]: 91: Hoare triple {34826#(and (or (<= main_n 51) (<= main_i 180)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 51 main_n)))} assume a[i] != 23;i := i + 4; {34827#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 51 main_n)) (or (<= main_i 184) (<= main_n 51)))} is VALID [2019-02-27 13:06:16,866 INFO L273 TraceCheckUtils]: 92: Hoare triple {34827#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 51 main_n)) (or (<= main_i 184) (<= main_n 51)))} assume i <= n * 4; {34827#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 51 main_n)) (or (<= main_i 184) (<= main_n 51)))} is VALID [2019-02-27 13:06:16,867 INFO L273 TraceCheckUtils]: 93: Hoare triple {34827#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 51 main_n)) (or (<= main_i 184) (<= main_n 51)))} assume a[i] != 23;i := i + 4; {34828#(and (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i))) (or (<= main_i 188) (<= main_n 51)))} is VALID [2019-02-27 13:06:16,868 INFO L273 TraceCheckUtils]: 94: Hoare triple {34828#(and (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i))) (or (<= main_i 188) (<= main_n 51)))} assume i <= n * 4; {34828#(and (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i))) (or (<= main_i 188) (<= main_n 51)))} is VALID [2019-02-27 13:06:16,869 INFO L273 TraceCheckUtils]: 95: Hoare triple {34828#(and (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i))) (or (<= main_i 188) (<= main_n 51)))} assume a[i] != 23;i := i + 4; {34829#(and (or (<= main_i 192) (<= main_n 51)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-02-27 13:06:16,870 INFO L273 TraceCheckUtils]: 96: Hoare triple {34829#(and (or (<= main_i 192) (<= main_n 51)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume i <= n * 4; {34829#(and (or (<= main_i 192) (<= main_n 51)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2019-02-27 13:06:16,871 INFO L273 TraceCheckUtils]: 97: Hoare triple {34829#(and (or (<= main_i 192) (<= main_n 51)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume a[i] != 23;i := i + 4; {34830#(and (or (< 51 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 196)))} is VALID [2019-02-27 13:06:16,872 INFO L273 TraceCheckUtils]: 98: Hoare triple {34830#(and (or (< 51 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 196)))} assume i <= n * 4; {34830#(and (or (< 51 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 196)))} is VALID [2019-02-27 13:06:16,873 INFO L273 TraceCheckUtils]: 99: Hoare triple {34830#(and (or (< 51 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 196)))} assume a[i] != 23;i := i + 4; {34831#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 51 main_n)) (or (<= main_n 51) (<= main_i 200)))} is VALID [2019-02-27 13:06:16,874 INFO L273 TraceCheckUtils]: 100: Hoare triple {34831#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 51 main_n)) (or (<= main_n 51) (<= main_i 200)))} assume i <= n * 4; {34831#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 51 main_n)) (or (<= main_n 51) (<= main_i 200)))} is VALID [2019-02-27 13:06:16,875 INFO L273 TraceCheckUtils]: 101: Hoare triple {34831#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 51 main_n)) (or (<= main_n 51) (<= main_i 200)))} assume a[i] != 23;i := i + 4; {34832#(and (or (<= main_n 51) (<= main_i 204)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 51 main_n)))} is VALID [2019-02-27 13:06:16,876 INFO L273 TraceCheckUtils]: 102: Hoare triple {34832#(and (or (<= main_n 51) (<= main_i 204)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 51 main_n)))} assume i <= n * 4; {34833#(and (or (< 51 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 204))} is VALID [2019-02-27 13:06:16,877 INFO L273 TraceCheckUtils]: 103: Hoare triple {34833#(and (or (< 51 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 204))} assume a[i] != 23;i := i + 4; {34834#(and (<= main_i 208) (<= 52 main_n))} is VALID [2019-02-27 13:06:16,878 INFO L273 TraceCheckUtils]: 104: Hoare triple {34834#(and (<= main_i 208) (<= 52 main_n))} assume !(i <= n * 4); {34780#false} is VALID [2019-02-27 13:06:16,927 INFO L134 CoverageAnalysis]: Checked inductivity of 2652 backedges. 0 proven. 2652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:06:16,927 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 13:06:16,927 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 13:06:16,928 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 13:06:16,928 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 13:06:16,928 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 13:06:16,928 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 13:06:16,936 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-27 13:06:16,936 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-27 13:06:16,965 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-27 13:06:16,965 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 13:06:16,966 WARN L254 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 109 conjunts are in the unsatisfiable core [2019-02-27 13:06:16,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:06:16,982 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 13:06:17,001 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 13:06:17,002 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 13:06:17,010 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 13:06:17,010 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 13:06:17,012 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 13:06:17,012 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_55]. (and (= (store v_main_a_55 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-27 13:06:17,012 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 13:06:21,454 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 13:06:21,456 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 13:06:21,461 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 13:06:21,461 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 13:06:21,463 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 13:06:21,464 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= 23 (select main_a 204))) (<= 204 .cse0) (<= main_i 208) (= 23 (select main_a .cse0)))) [2019-02-27 13:06:21,464 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 204 .cse0) (<= main_i 208) (not (= 204 .cse0)))) [2019-02-27 13:06:21,529 INFO L273 TraceCheckUtils]: 0: Hoare triple {34779#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {34838#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,530 INFO L273 TraceCheckUtils]: 1: Hoare triple {34838#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34842#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 13:06:21,530 INFO L273 TraceCheckUtils]: 2: Hoare triple {34842#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {34842#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 13:06:21,531 INFO L273 TraceCheckUtils]: 3: Hoare triple {34842#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {34849#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,531 INFO L273 TraceCheckUtils]: 4: Hoare triple {34849#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34849#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,532 INFO L273 TraceCheckUtils]: 5: Hoare triple {34849#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34856#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 13:06:21,533 INFO L273 TraceCheckUtils]: 6: Hoare triple {34856#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {34856#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 13:06:21,533 INFO L273 TraceCheckUtils]: 7: Hoare triple {34856#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {34863#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,534 INFO L273 TraceCheckUtils]: 8: Hoare triple {34863#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34863#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,535 INFO L273 TraceCheckUtils]: 9: Hoare triple {34863#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34870#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,535 INFO L273 TraceCheckUtils]: 10: Hoare triple {34870#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34870#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,536 INFO L273 TraceCheckUtils]: 11: Hoare triple {34870#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34877#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,537 INFO L273 TraceCheckUtils]: 12: Hoare triple {34877#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34877#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,537 INFO L273 TraceCheckUtils]: 13: Hoare triple {34877#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34884#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,538 INFO L273 TraceCheckUtils]: 14: Hoare triple {34884#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34884#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,539 INFO L273 TraceCheckUtils]: 15: Hoare triple {34884#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34891#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,539 INFO L273 TraceCheckUtils]: 16: Hoare triple {34891#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34891#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,540 INFO L273 TraceCheckUtils]: 17: Hoare triple {34891#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34898#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,541 INFO L273 TraceCheckUtils]: 18: Hoare triple {34898#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34898#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,541 INFO L273 TraceCheckUtils]: 19: Hoare triple {34898#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34905#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,542 INFO L273 TraceCheckUtils]: 20: Hoare triple {34905#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34905#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,543 INFO L273 TraceCheckUtils]: 21: Hoare triple {34905#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34912#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,543 INFO L273 TraceCheckUtils]: 22: Hoare triple {34912#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34912#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,544 INFO L273 TraceCheckUtils]: 23: Hoare triple {34912#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34919#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,545 INFO L273 TraceCheckUtils]: 24: Hoare triple {34919#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34919#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,545 INFO L273 TraceCheckUtils]: 25: Hoare triple {34919#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34926#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,546 INFO L273 TraceCheckUtils]: 26: Hoare triple {34926#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34926#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,547 INFO L273 TraceCheckUtils]: 27: Hoare triple {34926#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34933#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,547 INFO L273 TraceCheckUtils]: 28: Hoare triple {34933#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34933#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,548 INFO L273 TraceCheckUtils]: 29: Hoare triple {34933#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34940#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,549 INFO L273 TraceCheckUtils]: 30: Hoare triple {34940#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34940#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,549 INFO L273 TraceCheckUtils]: 31: Hoare triple {34940#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34947#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,550 INFO L273 TraceCheckUtils]: 32: Hoare triple {34947#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34947#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,551 INFO L273 TraceCheckUtils]: 33: Hoare triple {34947#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34954#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,551 INFO L273 TraceCheckUtils]: 34: Hoare triple {34954#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34954#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,552 INFO L273 TraceCheckUtils]: 35: Hoare triple {34954#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34961#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,553 INFO L273 TraceCheckUtils]: 36: Hoare triple {34961#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34961#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,553 INFO L273 TraceCheckUtils]: 37: Hoare triple {34961#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34968#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,554 INFO L273 TraceCheckUtils]: 38: Hoare triple {34968#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34968#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,555 INFO L273 TraceCheckUtils]: 39: Hoare triple {34968#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34975#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 13:06:21,555 INFO L273 TraceCheckUtils]: 40: Hoare triple {34975#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {34975#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 13:06:21,556 INFO L273 TraceCheckUtils]: 41: Hoare triple {34975#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {34982#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,557 INFO L273 TraceCheckUtils]: 42: Hoare triple {34982#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34982#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,557 INFO L273 TraceCheckUtils]: 43: Hoare triple {34982#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34989#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,558 INFO L273 TraceCheckUtils]: 44: Hoare triple {34989#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34989#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,559 INFO L273 TraceCheckUtils]: 45: Hoare triple {34989#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34996#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,559 INFO L273 TraceCheckUtils]: 46: Hoare triple {34996#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34996#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,560 INFO L273 TraceCheckUtils]: 47: Hoare triple {34996#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35003#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,561 INFO L273 TraceCheckUtils]: 48: Hoare triple {35003#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35003#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,561 INFO L273 TraceCheckUtils]: 49: Hoare triple {35003#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35010#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,562 INFO L273 TraceCheckUtils]: 50: Hoare triple {35010#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35010#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,563 INFO L273 TraceCheckUtils]: 51: Hoare triple {35010#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35017#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,563 INFO L273 TraceCheckUtils]: 52: Hoare triple {35017#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35017#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,564 INFO L273 TraceCheckUtils]: 53: Hoare triple {35017#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35024#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,565 INFO L273 TraceCheckUtils]: 54: Hoare triple {35024#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35024#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,565 INFO L273 TraceCheckUtils]: 55: Hoare triple {35024#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35031#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,566 INFO L273 TraceCheckUtils]: 56: Hoare triple {35031#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35031#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,567 INFO L273 TraceCheckUtils]: 57: Hoare triple {35031#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35038#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,589 INFO L273 TraceCheckUtils]: 58: Hoare triple {35038#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35038#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,603 INFO L273 TraceCheckUtils]: 59: Hoare triple {35038#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35045#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,612 INFO L273 TraceCheckUtils]: 60: Hoare triple {35045#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35045#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,625 INFO L273 TraceCheckUtils]: 61: Hoare triple {35045#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35052#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,631 INFO L273 TraceCheckUtils]: 62: Hoare triple {35052#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35052#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,632 INFO L273 TraceCheckUtils]: 63: Hoare triple {35052#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35059#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,632 INFO L273 TraceCheckUtils]: 64: Hoare triple {35059#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35059#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,632 INFO L273 TraceCheckUtils]: 65: Hoare triple {35059#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35066#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,633 INFO L273 TraceCheckUtils]: 66: Hoare triple {35066#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35066#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,633 INFO L273 TraceCheckUtils]: 67: Hoare triple {35066#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35073#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,634 INFO L273 TraceCheckUtils]: 68: Hoare triple {35073#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35073#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,634 INFO L273 TraceCheckUtils]: 69: Hoare triple {35073#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35080#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 13:06:21,635 INFO L273 TraceCheckUtils]: 70: Hoare triple {35080#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {35080#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 13:06:21,635 INFO L273 TraceCheckUtils]: 71: Hoare triple {35080#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {35087#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,636 INFO L273 TraceCheckUtils]: 72: Hoare triple {35087#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35087#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,636 INFO L273 TraceCheckUtils]: 73: Hoare triple {35087#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35094#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,637 INFO L273 TraceCheckUtils]: 74: Hoare triple {35094#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35094#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,638 INFO L273 TraceCheckUtils]: 75: Hoare triple {35094#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35101#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,638 INFO L273 TraceCheckUtils]: 76: Hoare triple {35101#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35101#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,639 INFO L273 TraceCheckUtils]: 77: Hoare triple {35101#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35108#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,640 INFO L273 TraceCheckUtils]: 78: Hoare triple {35108#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35108#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,640 INFO L273 TraceCheckUtils]: 79: Hoare triple {35108#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35115#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,641 INFO L273 TraceCheckUtils]: 80: Hoare triple {35115#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35115#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,642 INFO L273 TraceCheckUtils]: 81: Hoare triple {35115#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35122#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-02-27 13:06:21,642 INFO L273 TraceCheckUtils]: 82: Hoare triple {35122#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {35122#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-02-27 13:06:21,643 INFO L273 TraceCheckUtils]: 83: Hoare triple {35122#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {35129#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,644 INFO L273 TraceCheckUtils]: 84: Hoare triple {35129#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35129#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,644 INFO L273 TraceCheckUtils]: 85: Hoare triple {35129#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35136#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,645 INFO L273 TraceCheckUtils]: 86: Hoare triple {35136#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35136#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,646 INFO L273 TraceCheckUtils]: 87: Hoare triple {35136#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35143#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,646 INFO L273 TraceCheckUtils]: 88: Hoare triple {35143#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35143#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,647 INFO L273 TraceCheckUtils]: 89: Hoare triple {35143#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35150#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,648 INFO L273 TraceCheckUtils]: 90: Hoare triple {35150#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35150#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,648 INFO L273 TraceCheckUtils]: 91: Hoare triple {35150#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35157#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,649 INFO L273 TraceCheckUtils]: 92: Hoare triple {35157#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35157#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,650 INFO L273 TraceCheckUtils]: 93: Hoare triple {35157#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35164#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,650 INFO L273 TraceCheckUtils]: 94: Hoare triple {35164#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35164#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,651 INFO L273 TraceCheckUtils]: 95: Hoare triple {35164#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35171#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,652 INFO L273 TraceCheckUtils]: 96: Hoare triple {35171#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35171#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,652 INFO L273 TraceCheckUtils]: 97: Hoare triple {35171#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35178#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,653 INFO L273 TraceCheckUtils]: 98: Hoare triple {35178#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35178#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,654 INFO L273 TraceCheckUtils]: 99: Hoare triple {35178#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35185#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,654 INFO L273 TraceCheckUtils]: 100: Hoare triple {35185#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35185#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,655 INFO L273 TraceCheckUtils]: 101: Hoare triple {35185#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35192#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,656 INFO L273 TraceCheckUtils]: 102: Hoare triple {35192#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35196#(and (<= main_i (* 4 main_n)) (= main_i 204) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:21,656 INFO L273 TraceCheckUtils]: 103: Hoare triple {35196#(and (<= main_i (* 4 main_n)) (= main_i 204) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34834#(and (<= main_i 208) (<= 52 main_n))} is VALID [2019-02-27 13:06:21,657 INFO L273 TraceCheckUtils]: 104: Hoare triple {34834#(and (<= main_i 208) (<= 52 main_n))} assume !(i <= n * 4); {34780#false} is VALID [2019-02-27 13:06:21,681 INFO L134 CoverageAnalysis]: Checked inductivity of 2652 backedges. 0 proven. 2652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:06:21,681 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 13:06:29,517 INFO L273 TraceCheckUtils]: 104: Hoare triple {35203#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {34780#false} is VALID [2019-02-27 13:06:29,518 INFO L273 TraceCheckUtils]: 103: Hoare triple {35207#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {35203#(<= main_i (* 4 main_n))} is VALID [2019-02-27 13:06:29,519 INFO L273 TraceCheckUtils]: 102: Hoare triple {35211#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {35207#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:06:29,519 INFO L273 TraceCheckUtils]: 101: Hoare triple {35215#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {35211#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:06:29,520 INFO L273 TraceCheckUtils]: 100: Hoare triple {35215#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {35215#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:06:29,520 INFO L273 TraceCheckUtils]: 99: Hoare triple {35222#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {35215#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:06:29,521 INFO L273 TraceCheckUtils]: 98: Hoare triple {35222#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {35222#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:06:29,522 INFO L273 TraceCheckUtils]: 97: Hoare triple {35229#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {35222#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:06:29,523 INFO L273 TraceCheckUtils]: 96: Hoare triple {35229#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {35229#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:06:29,524 INFO L273 TraceCheckUtils]: 95: Hoare triple {35236#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {35229#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:06:29,524 INFO L273 TraceCheckUtils]: 94: Hoare triple {35236#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {35236#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:06:29,525 INFO L273 TraceCheckUtils]: 93: Hoare triple {35243#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35236#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:06:29,526 INFO L273 TraceCheckUtils]: 92: Hoare triple {35243#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {35243#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:06:29,527 INFO L273 TraceCheckUtils]: 91: Hoare triple {35250#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {35243#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:06:29,527 INFO L273 TraceCheckUtils]: 90: Hoare triple {35250#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {35250#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:06:29,528 INFO L273 TraceCheckUtils]: 89: Hoare triple {35257#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35250#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:06:29,529 INFO L273 TraceCheckUtils]: 88: Hoare triple {35257#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {35257#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:06:29,530 INFO L273 TraceCheckUtils]: 87: Hoare triple {35264#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35257#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:06:29,530 INFO L273 TraceCheckUtils]: 86: Hoare triple {35264#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {35264#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:06:29,531 INFO L273 TraceCheckUtils]: 85: Hoare triple {35271#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35264#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:06:29,532 INFO L273 TraceCheckUtils]: 84: Hoare triple {35271#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {35271#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:06:29,533 INFO L273 TraceCheckUtils]: 83: Hoare triple {35278#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {35271#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:06:29,533 INFO L273 TraceCheckUtils]: 82: Hoare triple {35278#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {35278#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:06:29,534 INFO L273 TraceCheckUtils]: 81: Hoare triple {35285#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35278#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:06:29,535 INFO L273 TraceCheckUtils]: 80: Hoare triple {35285#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {35285#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:06:29,536 INFO L273 TraceCheckUtils]: 79: Hoare triple {35292#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35285#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:06:29,537 INFO L273 TraceCheckUtils]: 78: Hoare triple {35292#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {35292#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:06:29,538 INFO L273 TraceCheckUtils]: 77: Hoare triple {35299#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {35292#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:06:29,538 INFO L273 TraceCheckUtils]: 76: Hoare triple {35299#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {35299#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:06:29,539 INFO L273 TraceCheckUtils]: 75: Hoare triple {35306#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35299#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:06:29,540 INFO L273 TraceCheckUtils]: 74: Hoare triple {35306#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {35306#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:06:29,541 INFO L273 TraceCheckUtils]: 73: Hoare triple {35313#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {35306#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:06:29,541 INFO L273 TraceCheckUtils]: 72: Hoare triple {35313#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {35313#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:06:29,542 INFO L273 TraceCheckUtils]: 71: Hoare triple {35320#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {35313#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:06:29,543 INFO L273 TraceCheckUtils]: 70: Hoare triple {35320#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {35320#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:06:29,544 INFO L273 TraceCheckUtils]: 69: Hoare triple {35327#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {35320#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:06:29,544 INFO L273 TraceCheckUtils]: 68: Hoare triple {35327#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {35327#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:06:29,545 INFO L273 TraceCheckUtils]: 67: Hoare triple {35334#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {35327#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:06:29,546 INFO L273 TraceCheckUtils]: 66: Hoare triple {35334#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {35334#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:06:29,547 INFO L273 TraceCheckUtils]: 65: Hoare triple {35341#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {35334#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:06:29,548 INFO L273 TraceCheckUtils]: 64: Hoare triple {35341#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {35341#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:06:29,549 INFO L273 TraceCheckUtils]: 63: Hoare triple {35348#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {35341#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:06:29,549 INFO L273 TraceCheckUtils]: 62: Hoare triple {35348#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {35348#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:06:29,550 INFO L273 TraceCheckUtils]: 61: Hoare triple {35355#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35348#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:06:29,551 INFO L273 TraceCheckUtils]: 60: Hoare triple {35355#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {35355#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:06:29,552 INFO L273 TraceCheckUtils]: 59: Hoare triple {35362#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35355#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:06:29,553 INFO L273 TraceCheckUtils]: 58: Hoare triple {35362#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {35362#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:06:29,554 INFO L273 TraceCheckUtils]: 57: Hoare triple {35369#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35362#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:06:29,554 INFO L273 TraceCheckUtils]: 56: Hoare triple {35369#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {35369#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:06:29,555 INFO L273 TraceCheckUtils]: 55: Hoare triple {35376#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {35369#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:06:29,556 INFO L273 TraceCheckUtils]: 54: Hoare triple {35376#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {35376#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:06:29,557 INFO L273 TraceCheckUtils]: 53: Hoare triple {35383#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35376#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:06:29,557 INFO L273 TraceCheckUtils]: 52: Hoare triple {35383#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {35383#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:06:29,558 INFO L273 TraceCheckUtils]: 51: Hoare triple {35390#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {35383#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:06:29,559 INFO L273 TraceCheckUtils]: 50: Hoare triple {35390#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {35390#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:06:29,560 INFO L273 TraceCheckUtils]: 49: Hoare triple {35397#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {35390#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:06:29,561 INFO L273 TraceCheckUtils]: 48: Hoare triple {35397#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {35397#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:06:29,562 INFO L273 TraceCheckUtils]: 47: Hoare triple {35404#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {35397#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:06:29,562 INFO L273 TraceCheckUtils]: 46: Hoare triple {35404#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {35404#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:06:29,563 INFO L273 TraceCheckUtils]: 45: Hoare triple {35411#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35404#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:06:29,564 INFO L273 TraceCheckUtils]: 44: Hoare triple {35411#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {35411#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:06:29,565 INFO L273 TraceCheckUtils]: 43: Hoare triple {35418#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35411#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:06:29,565 INFO L273 TraceCheckUtils]: 42: Hoare triple {35418#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {35418#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:06:29,566 INFO L273 TraceCheckUtils]: 41: Hoare triple {35425#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {35418#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:06:29,567 INFO L273 TraceCheckUtils]: 40: Hoare triple {35425#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {35425#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:06:29,568 INFO L273 TraceCheckUtils]: 39: Hoare triple {35432#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35425#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:06:29,568 INFO L273 TraceCheckUtils]: 38: Hoare triple {35432#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {35432#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:06:29,569 INFO L273 TraceCheckUtils]: 37: Hoare triple {35439#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {35432#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:06:29,570 INFO L273 TraceCheckUtils]: 36: Hoare triple {35439#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {35439#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:06:29,571 INFO L273 TraceCheckUtils]: 35: Hoare triple {35446#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {35439#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:06:29,572 INFO L273 TraceCheckUtils]: 34: Hoare triple {35446#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {35446#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:06:29,573 INFO L273 TraceCheckUtils]: 33: Hoare triple {35453#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {35446#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:06:29,573 INFO L273 TraceCheckUtils]: 32: Hoare triple {35453#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {35453#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:06:29,574 INFO L273 TraceCheckUtils]: 31: Hoare triple {35460#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {35453#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:06:29,575 INFO L273 TraceCheckUtils]: 30: Hoare triple {35460#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {35460#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:06:29,576 INFO L273 TraceCheckUtils]: 29: Hoare triple {35467#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {35460#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:06:29,576 INFO L273 TraceCheckUtils]: 28: Hoare triple {35467#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {35467#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-02-27 13:06:29,577 INFO L273 TraceCheckUtils]: 27: Hoare triple {35474#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {35467#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-02-27 13:06:29,578 INFO L273 TraceCheckUtils]: 26: Hoare triple {35474#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {35474#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-02-27 13:06:29,579 INFO L273 TraceCheckUtils]: 25: Hoare triple {35481#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {35474#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-02-27 13:06:29,579 INFO L273 TraceCheckUtils]: 24: Hoare triple {35481#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {35481#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-02-27 13:06:29,581 INFO L273 TraceCheckUtils]: 23: Hoare triple {35488#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {35481#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-02-27 13:06:29,581 INFO L273 TraceCheckUtils]: 22: Hoare triple {35488#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {35488#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-02-27 13:06:29,582 INFO L273 TraceCheckUtils]: 21: Hoare triple {35495#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {35488#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-02-27 13:06:29,583 INFO L273 TraceCheckUtils]: 20: Hoare triple {35495#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {35495#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-02-27 13:06:29,584 INFO L273 TraceCheckUtils]: 19: Hoare triple {35502#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35495#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-02-27 13:06:29,584 INFO L273 TraceCheckUtils]: 18: Hoare triple {35502#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume i <= n * 4; {35502#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-02-27 13:06:29,586 INFO L273 TraceCheckUtils]: 17: Hoare triple {35509#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35502#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-02-27 13:06:29,586 INFO L273 TraceCheckUtils]: 16: Hoare triple {35509#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume i <= n * 4; {35509#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-02-27 13:06:29,587 INFO L273 TraceCheckUtils]: 15: Hoare triple {35516#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume a[i] != 23;i := i + 4; {35509#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-02-27 13:06:29,588 INFO L273 TraceCheckUtils]: 14: Hoare triple {35516#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume i <= n * 4; {35516#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-02-27 13:06:29,589 INFO L273 TraceCheckUtils]: 13: Hoare triple {35523#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume a[i] != 23;i := i + 4; {35516#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-02-27 13:06:29,589 INFO L273 TraceCheckUtils]: 12: Hoare triple {35523#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume i <= n * 4; {35523#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-02-27 13:06:29,590 INFO L273 TraceCheckUtils]: 11: Hoare triple {35530#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume a[i] != 23;i := i + 4; {35523#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-02-27 13:06:29,591 INFO L273 TraceCheckUtils]: 10: Hoare triple {35530#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume i <= n * 4; {35530#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2019-02-27 13:06:29,592 INFO L273 TraceCheckUtils]: 9: Hoare triple {35537#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume a[i] != 23;i := i + 4; {35530#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2019-02-27 13:06:29,592 INFO L273 TraceCheckUtils]: 8: Hoare triple {35537#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume i <= n * 4; {35537#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2019-02-27 13:06:29,593 INFO L273 TraceCheckUtils]: 7: Hoare triple {35544#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} assume a[i] != 23;i := i + 4; {35537#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2019-02-27 13:06:29,594 INFO L273 TraceCheckUtils]: 6: Hoare triple {35544#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} assume i <= n * 4; {35544#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} is VALID [2019-02-27 13:06:29,595 INFO L273 TraceCheckUtils]: 5: Hoare triple {35551#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} assume a[i] != 23;i := i + 4; {35544#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} is VALID [2019-02-27 13:06:29,595 INFO L273 TraceCheckUtils]: 4: Hoare triple {35551#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} assume i <= n * 4; {35551#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} is VALID [2019-02-27 13:06:29,596 INFO L273 TraceCheckUtils]: 3: Hoare triple {35558#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} assume a[i] != 23;i := i + 4; {35551#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} is VALID [2019-02-27 13:06:29,597 INFO L273 TraceCheckUtils]: 2: Hoare triple {35558#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} assume i <= n * 4; {35558#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} is VALID [2019-02-27 13:06:29,598 INFO L273 TraceCheckUtils]: 1: Hoare triple {35565#(or (< (+ main_i 207) (* 4 main_n)) (< (* 4 main_n) (+ main_i 204)) (= (select main_a (+ main_i 204)) 23))} assume a[i] != 23;i := i + 4; {35558#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} is VALID [2019-02-27 13:06:29,599 INFO L273 TraceCheckUtils]: 0: Hoare triple {34779#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {35565#(or (< (+ main_i 207) (* 4 main_n)) (< (* 4 main_n) (+ main_i 204)) (= (select main_a (+ main_i 204)) 23))} is VALID [2019-02-27 13:06:29,639 INFO L134 CoverageAnalysis]: Checked inductivity of 2652 backedges. 0 proven. 2652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:06:29,657 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 13:06:29,657 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54, 54] total 161 [2019-02-27 13:06:29,657 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 13:06:29,658 INFO L78 Accepts]: Start accepts. Automaton has 109 states. Word has length 105 [2019-02-27 13:06:29,658 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 13:06:29,658 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 109 states. [2019-02-27 13:06:29,914 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 209 edges. 209 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 13:06:29,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 109 states [2019-02-27 13:06:29,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2019-02-27 13:06:29,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3194, Invalid=23212, Unknown=0, NotChecked=0, Total=26406 [2019-02-27 13:06:29,916 INFO L87 Difference]: Start difference. First operand 106 states and 106 transitions. Second operand 109 states. [2019-02-27 13:06:50,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:06:50,875 INFO L93 Difference]: Finished difference Result 110 states and 110 transitions. [2019-02-27 13:06:50,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2019-02-27 13:06:50,875 INFO L78 Accepts]: Start accepts. Automaton has 109 states. Word has length 105 [2019-02-27 13:06:50,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 13:06:50,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-02-27 13:06:50,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 110 transitions. [2019-02-27 13:06:50,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-02-27 13:06:50,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 110 transitions. [2019-02-27 13:06:50,878 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 56 states and 110 transitions. [2019-02-27 13:06:51,009 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 110 edges. 110 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 13:06:51,012 INFO L225 Difference]: With dead ends: 110 [2019-02-27 13:06:51,012 INFO L226 Difference]: Without dead ends: 109 [2019-02-27 13:06:51,013 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5936 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=3194, Invalid=23212, Unknown=0, NotChecked=0, Total=26406 [2019-02-27 13:06:51,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-02-27 13:06:51,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2019-02-27 13:06:51,129 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 13:06:51,129 INFO L82 GeneralOperation]: Start isEquivalent. First operand 109 states. Second operand 108 states. [2019-02-27 13:06:51,130 INFO L74 IsIncluded]: Start isIncluded. First operand 109 states. Second operand 108 states. [2019-02-27 13:06:51,130 INFO L87 Difference]: Start difference. First operand 109 states. Second operand 108 states. [2019-02-27 13:06:51,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:06:51,132 INFO L93 Difference]: Finished difference Result 109 states and 109 transitions. [2019-02-27 13:06:51,132 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 109 transitions. [2019-02-27 13:06:51,132 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 13:06:51,132 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 13:06:51,133 INFO L74 IsIncluded]: Start isIncluded. First operand 108 states. Second operand 109 states. [2019-02-27 13:06:51,133 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 109 states. [2019-02-27 13:06:51,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:06:51,134 INFO L93 Difference]: Finished difference Result 109 states and 109 transitions. [2019-02-27 13:06:51,134 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 109 transitions. [2019-02-27 13:06:51,135 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 13:06:51,135 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 13:06:51,135 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 13:06:51,135 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 13:06:51,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-02-27 13:06:51,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 108 transitions. [2019-02-27 13:06:51,137 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 108 transitions. Word has length 105 [2019-02-27 13:06:51,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 13:06:51,137 INFO L480 AbstractCegarLoop]: Abstraction has 108 states and 108 transitions. [2019-02-27 13:06:51,137 INFO L481 AbstractCegarLoop]: Interpolant automaton has 109 states. [2019-02-27 13:06:51,137 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 108 transitions. [2019-02-27 13:06:51,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-02-27 13:06:51,138 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 13:06:51,138 INFO L402 BasicCegarLoop]: trace histogram [53, 52, 1, 1] [2019-02-27 13:06:51,138 INFO L423 AbstractCegarLoop]: === Iteration 53 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 13:06:51,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 13:06:51,139 INFO L82 PathProgramCache]: Analyzing trace with hash -1914541240, now seen corresponding path program 52 times [2019-02-27 13:06:51,139 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 13:06:51,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 13:06:51,140 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-27 13:06:51,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 13:06:51,140 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 13:06:51,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:06:54,347 INFO L273 TraceCheckUtils]: 0: Hoare triple {36111#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {36113#(and (or (<= main_i 0) (<= main_n 52)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-02-27 13:06:54,349 INFO L273 TraceCheckUtils]: 1: Hoare triple {36113#(and (or (<= main_i 0) (<= main_n 52)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36114#(and (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 52) (<= main_i 4)))} is VALID [2019-02-27 13:06:54,349 INFO L273 TraceCheckUtils]: 2: Hoare triple {36114#(and (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 52) (<= main_i 4)))} assume i <= n * 4; {36114#(and (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 52) (<= main_i 4)))} is VALID [2019-02-27 13:06:54,350 INFO L273 TraceCheckUtils]: 3: Hoare triple {36114#(and (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 52) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {36115#(and (or (< 52 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 52)))} is VALID [2019-02-27 13:06:54,351 INFO L273 TraceCheckUtils]: 4: Hoare triple {36115#(and (or (< 52 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 52)))} assume i <= n * 4; {36115#(and (or (< 52 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 52)))} is VALID [2019-02-27 13:06:54,352 INFO L273 TraceCheckUtils]: 5: Hoare triple {36115#(and (or (< 52 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36116#(and (or (< 52 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 12)))} is VALID [2019-02-27 13:06:54,353 INFO L273 TraceCheckUtils]: 6: Hoare triple {36116#(and (or (< 52 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 12)))} assume i <= n * 4; {36116#(and (or (< 52 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 12)))} is VALID [2019-02-27 13:06:54,354 INFO L273 TraceCheckUtils]: 7: Hoare triple {36116#(and (or (< 52 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {36117#(and (or (< 52 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 16)))} is VALID [2019-02-27 13:06:54,355 INFO L273 TraceCheckUtils]: 8: Hoare triple {36117#(and (or (< 52 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 16)))} assume i <= n * 4; {36117#(and (or (< 52 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 16)))} is VALID [2019-02-27 13:06:54,356 INFO L273 TraceCheckUtils]: 9: Hoare triple {36117#(and (or (< 52 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {36118#(and (or (<= main_i 20) (<= main_n 52)) (or (< 52 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:54,357 INFO L273 TraceCheckUtils]: 10: Hoare triple {36118#(and (or (<= main_i 20) (<= main_n 52)) (or (< 52 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36118#(and (or (<= main_i 20) (<= main_n 52)) (or (< 52 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:54,358 INFO L273 TraceCheckUtils]: 11: Hoare triple {36118#(and (or (<= main_i 20) (<= main_n 52)) (or (< 52 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36119#(and (or (<= main_i 24) (<= main_n 52)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-02-27 13:06:54,359 INFO L273 TraceCheckUtils]: 12: Hoare triple {36119#(and (or (<= main_i 24) (<= main_n 52)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume i <= n * 4; {36119#(and (or (<= main_i 24) (<= main_n 52)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-02-27 13:06:54,360 INFO L273 TraceCheckUtils]: 13: Hoare triple {36119#(and (or (<= main_i 24) (<= main_n 52)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36120#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_n 52) (<= main_i 28)))} is VALID [2019-02-27 13:06:54,361 INFO L273 TraceCheckUtils]: 14: Hoare triple {36120#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_n 52) (<= main_i 28)))} assume i <= n * 4; {36120#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_n 52) (<= main_i 28)))} is VALID [2019-02-27 13:06:54,362 INFO L273 TraceCheckUtils]: 15: Hoare triple {36120#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_n 52) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {36121#(and (or (<= main_i 32) (<= main_n 52)) (or (< 52 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:54,363 INFO L273 TraceCheckUtils]: 16: Hoare triple {36121#(and (or (<= main_i 32) (<= main_n 52)) (or (< 52 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36121#(and (or (<= main_i 32) (<= main_n 52)) (or (< 52 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:54,364 INFO L273 TraceCheckUtils]: 17: Hoare triple {36121#(and (or (<= main_i 32) (<= main_n 52)) (or (< 52 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36122#(and (or (<= main_i 36) (<= main_n 52)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 52 main_n)))} is VALID [2019-02-27 13:06:54,364 INFO L273 TraceCheckUtils]: 18: Hoare triple {36122#(and (or (<= main_i 36) (<= main_n 52)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 52 main_n)))} assume i <= n * 4; {36122#(and (or (<= main_i 36) (<= main_n 52)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 52 main_n)))} is VALID [2019-02-27 13:06:54,366 INFO L273 TraceCheckUtils]: 19: Hoare triple {36122#(and (or (<= main_i 36) (<= main_n 52)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36123#(and (or (<= main_i 40) (<= main_n 52)) (or (< 52 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:54,366 INFO L273 TraceCheckUtils]: 20: Hoare triple {36123#(and (or (<= main_i 40) (<= main_n 52)) (or (< 52 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36123#(and (or (<= main_i 40) (<= main_n 52)) (or (< 52 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:54,367 INFO L273 TraceCheckUtils]: 21: Hoare triple {36123#(and (or (<= main_i 40) (<= main_n 52)) (or (< 52 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36124#(and (or (< 52 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 44)))} is VALID [2019-02-27 13:06:54,368 INFO L273 TraceCheckUtils]: 22: Hoare triple {36124#(and (or (< 52 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 44)))} assume i <= n * 4; {36124#(and (or (< 52 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 44)))} is VALID [2019-02-27 13:06:54,369 INFO L273 TraceCheckUtils]: 23: Hoare triple {36124#(and (or (< 52 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 44)))} assume a[i] != 23;i := i + 4; {36125#(and (or (<= main_n 52) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-02-27 13:06:54,370 INFO L273 TraceCheckUtils]: 24: Hoare triple {36125#(and (or (<= main_n 52) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume i <= n * 4; {36125#(and (or (<= main_n 52) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-02-27 13:06:54,371 INFO L273 TraceCheckUtils]: 25: Hoare triple {36125#(and (or (<= main_n 52) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36126#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 52) (<= main_n 52)))} is VALID [2019-02-27 13:06:54,372 INFO L273 TraceCheckUtils]: 26: Hoare triple {36126#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 52) (<= main_n 52)))} assume i <= n * 4; {36126#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 52) (<= main_n 52)))} is VALID [2019-02-27 13:06:54,373 INFO L273 TraceCheckUtils]: 27: Hoare triple {36126#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 52) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36127#(and (or (<= main_i 56) (<= main_n 52)) (or (< 52 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:54,374 INFO L273 TraceCheckUtils]: 28: Hoare triple {36127#(and (or (<= main_i 56) (<= main_n 52)) (or (< 52 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36127#(and (or (<= main_i 56) (<= main_n 52)) (or (< 52 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:54,375 INFO L273 TraceCheckUtils]: 29: Hoare triple {36127#(and (or (<= main_i 56) (<= main_n 52)) (or (< 52 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36128#(and (or (< 52 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 52)))} is VALID [2019-02-27 13:06:54,376 INFO L273 TraceCheckUtils]: 30: Hoare triple {36128#(and (or (< 52 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 52)))} assume i <= n * 4; {36128#(and (or (< 52 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 52)))} is VALID [2019-02-27 13:06:54,377 INFO L273 TraceCheckUtils]: 31: Hoare triple {36128#(and (or (< 52 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36129#(and (or (<= main_i 64) (<= main_n 52)) (or (< 52 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:54,378 INFO L273 TraceCheckUtils]: 32: Hoare triple {36129#(and (or (<= main_i 64) (<= main_n 52)) (or (< 52 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36129#(and (or (<= main_i 64) (<= main_n 52)) (or (< 52 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:54,379 INFO L273 TraceCheckUtils]: 33: Hoare triple {36129#(and (or (<= main_i 64) (<= main_n 52)) (or (< 52 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36130#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_n 52) (<= main_i 68)))} is VALID [2019-02-27 13:06:54,379 INFO L273 TraceCheckUtils]: 34: Hoare triple {36130#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_n 52) (<= main_i 68)))} assume i <= n * 4; {36130#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_n 52) (<= main_i 68)))} is VALID [2019-02-27 13:06:54,380 INFO L273 TraceCheckUtils]: 35: Hoare triple {36130#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_n 52) (<= main_i 68)))} assume a[i] != 23;i := i + 4; {36131#(and (or (<= main_i 72) (<= main_n 52)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-02-27 13:06:54,381 INFO L273 TraceCheckUtils]: 36: Hoare triple {36131#(and (or (<= main_i 72) (<= main_n 52)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume i <= n * 4; {36131#(and (or (<= main_i 72) (<= main_n 52)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-02-27 13:06:54,382 INFO L273 TraceCheckUtils]: 37: Hoare triple {36131#(and (or (<= main_i 72) (<= main_n 52)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36132#(and (or (<= main_i 76) (<= main_n 52)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-02-27 13:06:54,383 INFO L273 TraceCheckUtils]: 38: Hoare triple {36132#(and (or (<= main_i 76) (<= main_n 52)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume i <= n * 4; {36132#(and (or (<= main_i 76) (<= main_n 52)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-02-27 13:06:54,384 INFO L273 TraceCheckUtils]: 39: Hoare triple {36132#(and (or (<= main_i 76) (<= main_n 52)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36133#(and (or (<= main_n 52) (<= main_i 80)) (or (< 52 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:54,385 INFO L273 TraceCheckUtils]: 40: Hoare triple {36133#(and (or (<= main_n 52) (<= main_i 80)) (or (< 52 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36133#(and (or (<= main_n 52) (<= main_i 80)) (or (< 52 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:54,386 INFO L273 TraceCheckUtils]: 41: Hoare triple {36133#(and (or (<= main_n 52) (<= main_i 80)) (or (< 52 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36134#(and (or (<= main_i 84) (<= main_n 52)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 52 main_n)))} is VALID [2019-02-27 13:06:54,387 INFO L273 TraceCheckUtils]: 42: Hoare triple {36134#(and (or (<= main_i 84) (<= main_n 52)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 52 main_n)))} assume i <= n * 4; {36134#(and (or (<= main_i 84) (<= main_n 52)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 52 main_n)))} is VALID [2019-02-27 13:06:54,388 INFO L273 TraceCheckUtils]: 43: Hoare triple {36134#(and (or (<= main_i 84) (<= main_n 52)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36135#(and (or (< 52 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 52)))} is VALID [2019-02-27 13:06:54,388 INFO L273 TraceCheckUtils]: 44: Hoare triple {36135#(and (or (< 52 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 52)))} assume i <= n * 4; {36135#(and (or (< 52 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 52)))} is VALID [2019-02-27 13:06:54,390 INFO L273 TraceCheckUtils]: 45: Hoare triple {36135#(and (or (< 52 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36136#(and (or (< 52 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 52)))} is VALID [2019-02-27 13:06:54,390 INFO L273 TraceCheckUtils]: 46: Hoare triple {36136#(and (or (< 52 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 52)))} assume i <= n * 4; {36136#(and (or (< 52 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 52)))} is VALID [2019-02-27 13:06:54,391 INFO L273 TraceCheckUtils]: 47: Hoare triple {36136#(and (or (< 52 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36137#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 96) (<= main_n 52)))} is VALID [2019-02-27 13:06:54,392 INFO L273 TraceCheckUtils]: 48: Hoare triple {36137#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 96) (<= main_n 52)))} assume i <= n * 4; {36137#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 96) (<= main_n 52)))} is VALID [2019-02-27 13:06:54,393 INFO L273 TraceCheckUtils]: 49: Hoare triple {36137#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 96) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36138#(and (or (<= main_i 100) (<= main_n 52)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-02-27 13:06:54,394 INFO L273 TraceCheckUtils]: 50: Hoare triple {36138#(and (or (<= main_i 100) (<= main_n 52)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume i <= n * 4; {36138#(and (or (<= main_i 100) (<= main_n 52)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-02-27 13:06:54,395 INFO L273 TraceCheckUtils]: 51: Hoare triple {36138#(and (or (<= main_i 100) (<= main_n 52)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36139#(and (or (<= main_i 104) (<= main_n 52)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-02-27 13:06:54,396 INFO L273 TraceCheckUtils]: 52: Hoare triple {36139#(and (or (<= main_i 104) (<= main_n 52)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume i <= n * 4; {36139#(and (or (<= main_i 104) (<= main_n 52)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-02-27 13:06:54,397 INFO L273 TraceCheckUtils]: 53: Hoare triple {36139#(and (or (<= main_i 104) (<= main_n 52)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36140#(and (or (<= main_n 52) (<= main_i 108)) (or (< 52 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:54,398 INFO L273 TraceCheckUtils]: 54: Hoare triple {36140#(and (or (<= main_n 52) (<= main_i 108)) (or (< 52 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36140#(and (or (<= main_n 52) (<= main_i 108)) (or (< 52 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:54,399 INFO L273 TraceCheckUtils]: 55: Hoare triple {36140#(and (or (<= main_n 52) (<= main_i 108)) (or (< 52 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36141#(and (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 52) (<= main_i 112)))} is VALID [2019-02-27 13:06:54,400 INFO L273 TraceCheckUtils]: 56: Hoare triple {36141#(and (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 52) (<= main_i 112)))} assume i <= n * 4; {36141#(and (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 52) (<= main_i 112)))} is VALID [2019-02-27 13:06:54,401 INFO L273 TraceCheckUtils]: 57: Hoare triple {36141#(and (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 52) (<= main_i 112)))} assume a[i] != 23;i := i + 4; {36142#(and (or (<= main_i 116) (<= main_n 52)) (or (< 52 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:54,402 INFO L273 TraceCheckUtils]: 58: Hoare triple {36142#(and (or (<= main_i 116) (<= main_n 52)) (or (< 52 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36142#(and (or (<= main_i 116) (<= main_n 52)) (or (< 52 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:54,403 INFO L273 TraceCheckUtils]: 59: Hoare triple {36142#(and (or (<= main_i 116) (<= main_n 52)) (or (< 52 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36143#(and (or (<= main_i 120) (<= main_n 52)) (or (< 52 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:54,403 INFO L273 TraceCheckUtils]: 60: Hoare triple {36143#(and (or (<= main_i 120) (<= main_n 52)) (or (< 52 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36143#(and (or (<= main_i 120) (<= main_n 52)) (or (< 52 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:54,405 INFO L273 TraceCheckUtils]: 61: Hoare triple {36143#(and (or (<= main_i 120) (<= main_n 52)) (or (< 52 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36144#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 124) (<= main_n 52)))} is VALID [2019-02-27 13:06:54,405 INFO L273 TraceCheckUtils]: 62: Hoare triple {36144#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 124) (<= main_n 52)))} assume i <= n * 4; {36144#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 124) (<= main_n 52)))} is VALID [2019-02-27 13:06:54,406 INFO L273 TraceCheckUtils]: 63: Hoare triple {36144#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 124) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36145#(and (or (<= main_i 128) (<= main_n 52)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} is VALID [2019-02-27 13:06:54,407 INFO L273 TraceCheckUtils]: 64: Hoare triple {36145#(and (or (<= main_i 128) (<= main_n 52)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} assume i <= n * 4; {36145#(and (or (<= main_i 128) (<= main_n 52)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} is VALID [2019-02-27 13:06:54,408 INFO L273 TraceCheckUtils]: 65: Hoare triple {36145#(and (or (<= main_i 128) (<= main_n 52)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} assume a[i] != 23;i := i + 4; {36146#(and (or (< 52 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 52)))} is VALID [2019-02-27 13:06:54,409 INFO L273 TraceCheckUtils]: 66: Hoare triple {36146#(and (or (< 52 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 52)))} assume i <= n * 4; {36146#(and (or (< 52 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 52)))} is VALID [2019-02-27 13:06:54,410 INFO L273 TraceCheckUtils]: 67: Hoare triple {36146#(and (or (< 52 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36147#(and (or (< 52 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 52)))} is VALID [2019-02-27 13:06:54,411 INFO L273 TraceCheckUtils]: 68: Hoare triple {36147#(and (or (< 52 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 52)))} assume i <= n * 4; {36147#(and (or (< 52 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 52)))} is VALID [2019-02-27 13:06:54,412 INFO L273 TraceCheckUtils]: 69: Hoare triple {36147#(and (or (< 52 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36148#(and (or (<= main_n 52) (<= main_i 140)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))))} is VALID [2019-02-27 13:06:54,413 INFO L273 TraceCheckUtils]: 70: Hoare triple {36148#(and (or (<= main_n 52) (<= main_i 140)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))))} assume i <= n * 4; {36148#(and (or (<= main_n 52) (<= main_i 140)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))))} is VALID [2019-02-27 13:06:54,414 INFO L273 TraceCheckUtils]: 71: Hoare triple {36148#(and (or (<= main_n 52) (<= main_i 140)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))))} assume a[i] != 23;i := i + 4; {36149#(and (or (<= main_n 52) (<= main_i 144)) (or (< 52 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:54,415 INFO L273 TraceCheckUtils]: 72: Hoare triple {36149#(and (or (<= main_n 52) (<= main_i 144)) (or (< 52 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36149#(and (or (<= main_n 52) (<= main_i 144)) (or (< 52 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:54,416 INFO L273 TraceCheckUtils]: 73: Hoare triple {36149#(and (or (<= main_n 52) (<= main_i 144)) (or (< 52 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36150#(and (or (<= main_n 52) (<= main_i 148)) (or (< 52 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:54,416 INFO L273 TraceCheckUtils]: 74: Hoare triple {36150#(and (or (<= main_n 52) (<= main_i 148)) (or (< 52 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36150#(and (or (<= main_n 52) (<= main_i 148)) (or (< 52 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:54,417 INFO L273 TraceCheckUtils]: 75: Hoare triple {36150#(and (or (<= main_n 52) (<= main_i 148)) (or (< 52 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36151#(and (or (<= main_n 52) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-02-27 13:06:54,418 INFO L273 TraceCheckUtils]: 76: Hoare triple {36151#(and (or (<= main_n 52) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume i <= n * 4; {36151#(and (or (<= main_n 52) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-02-27 13:06:54,419 INFO L273 TraceCheckUtils]: 77: Hoare triple {36151#(and (or (<= main_n 52) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36152#(and (or (<= main_i 156) (<= main_n 52)) (or (< 52 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:54,420 INFO L273 TraceCheckUtils]: 78: Hoare triple {36152#(and (or (<= main_i 156) (<= main_n 52)) (or (< 52 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36152#(and (or (<= main_i 156) (<= main_n 52)) (or (< 52 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:54,421 INFO L273 TraceCheckUtils]: 79: Hoare triple {36152#(and (or (<= main_i 156) (<= main_n 52)) (or (< 52 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36153#(and (or (<= main_n 52) (<= main_i 160)) (or (< 52 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:54,422 INFO L273 TraceCheckUtils]: 80: Hoare triple {36153#(and (or (<= main_n 52) (<= main_i 160)) (or (< 52 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36153#(and (or (<= main_n 52) (<= main_i 160)) (or (< 52 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:54,423 INFO L273 TraceCheckUtils]: 81: Hoare triple {36153#(and (or (<= main_n 52) (<= main_i 160)) (or (< 52 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36154#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 164) (<= main_n 52)))} is VALID [2019-02-27 13:06:54,424 INFO L273 TraceCheckUtils]: 82: Hoare triple {36154#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 164) (<= main_n 52)))} assume i <= n * 4; {36154#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 164) (<= main_n 52)))} is VALID [2019-02-27 13:06:54,425 INFO L273 TraceCheckUtils]: 83: Hoare triple {36154#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 164) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36155#(and (or (<= main_n 52) (<= main_i 168)) (or (< 52 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:54,425 INFO L273 TraceCheckUtils]: 84: Hoare triple {36155#(and (or (<= main_n 52) (<= main_i 168)) (or (< 52 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36155#(and (or (<= main_n 52) (<= main_i 168)) (or (< 52 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:54,426 INFO L273 TraceCheckUtils]: 85: Hoare triple {36155#(and (or (<= main_n 52) (<= main_i 168)) (or (< 52 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36156#(and (or (< 52 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 172) (<= main_n 52)))} is VALID [2019-02-27 13:06:54,427 INFO L273 TraceCheckUtils]: 86: Hoare triple {36156#(and (or (< 52 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 172) (<= main_n 52)))} assume i <= n * 4; {36156#(and (or (< 52 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 172) (<= main_n 52)))} is VALID [2019-02-27 13:06:54,428 INFO L273 TraceCheckUtils]: 87: Hoare triple {36156#(and (or (< 52 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 172) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36157#(and (or (<= main_i 176) (<= main_n 52)) (or (< 52 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:54,429 INFO L273 TraceCheckUtils]: 88: Hoare triple {36157#(and (or (<= main_i 176) (<= main_n 52)) (or (< 52 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36157#(and (or (<= main_i 176) (<= main_n 52)) (or (< 52 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:54,430 INFO L273 TraceCheckUtils]: 89: Hoare triple {36157#(and (or (<= main_i 176) (<= main_n 52)) (or (< 52 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36158#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 52 main_n)) (or (<= main_i 180) (<= main_n 52)))} is VALID [2019-02-27 13:06:54,431 INFO L273 TraceCheckUtils]: 90: Hoare triple {36158#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 52 main_n)) (or (<= main_i 180) (<= main_n 52)))} assume i <= n * 4; {36158#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 52 main_n)) (or (<= main_i 180) (<= main_n 52)))} is VALID [2019-02-27 13:06:54,432 INFO L273 TraceCheckUtils]: 91: Hoare triple {36158#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 52 main_n)) (or (<= main_i 180) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36159#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 52 main_n)) (or (<= main_i 184) (<= main_n 52)))} is VALID [2019-02-27 13:06:54,433 INFO L273 TraceCheckUtils]: 92: Hoare triple {36159#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 52 main_n)) (or (<= main_i 184) (<= main_n 52)))} assume i <= n * 4; {36159#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 52 main_n)) (or (<= main_i 184) (<= main_n 52)))} is VALID [2019-02-27 13:06:54,434 INFO L273 TraceCheckUtils]: 93: Hoare triple {36159#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 52 main_n)) (or (<= main_i 184) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36160#(and (or (<= main_i 188) (<= main_n 52)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i))))} is VALID [2019-02-27 13:06:54,435 INFO L273 TraceCheckUtils]: 94: Hoare triple {36160#(and (or (<= main_i 188) (<= main_n 52)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i))))} assume i <= n * 4; {36160#(and (or (<= main_i 188) (<= main_n 52)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i))))} is VALID [2019-02-27 13:06:54,436 INFO L273 TraceCheckUtils]: 95: Hoare triple {36160#(and (or (<= main_i 188) (<= main_n 52)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i))))} assume a[i] != 23;i := i + 4; {36161#(and (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 192) (<= main_n 52)))} is VALID [2019-02-27 13:06:54,437 INFO L273 TraceCheckUtils]: 96: Hoare triple {36161#(and (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 192) (<= main_n 52)))} assume i <= n * 4; {36161#(and (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 192) (<= main_n 52)))} is VALID [2019-02-27 13:06:54,438 INFO L273 TraceCheckUtils]: 97: Hoare triple {36161#(and (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 192) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36162#(and (or (<= main_n 52) (<= main_i 196)) (or (< 52 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:54,438 INFO L273 TraceCheckUtils]: 98: Hoare triple {36162#(and (or (<= main_n 52) (<= main_i 196)) (or (< 52 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36162#(and (or (<= main_n 52) (<= main_i 196)) (or (< 52 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:06:54,440 INFO L273 TraceCheckUtils]: 99: Hoare triple {36162#(and (or (<= main_n 52) (<= main_i 196)) (or (< 52 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36163#(and (or (<= main_n 52) (<= main_i 200)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 52 main_n)))} is VALID [2019-02-27 13:06:54,440 INFO L273 TraceCheckUtils]: 100: Hoare triple {36163#(and (or (<= main_n 52) (<= main_i 200)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 52 main_n)))} assume i <= n * 4; {36163#(and (or (<= main_n 52) (<= main_i 200)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 52 main_n)))} is VALID [2019-02-27 13:06:54,441 INFO L273 TraceCheckUtils]: 101: Hoare triple {36163#(and (or (<= main_n 52) (<= main_i 200)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36164#(and (or (<= main_i 204) (<= main_n 52)) (or (and (<= 204 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-02-27 13:06:54,442 INFO L273 TraceCheckUtils]: 102: Hoare triple {36164#(and (or (<= main_i 204) (<= main_n 52)) (or (and (<= 204 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume i <= n * 4; {36164#(and (or (<= main_i 204) (<= main_n 52)) (or (and (<= 204 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2019-02-27 13:06:54,443 INFO L273 TraceCheckUtils]: 103: Hoare triple {36164#(and (or (<= main_i 204) (<= main_n 52)) (or (and (<= 204 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36165#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 52 main_n)) (or (<= main_i 208) (<= main_n 52)))} is VALID [2019-02-27 13:06:54,445 INFO L273 TraceCheckUtils]: 104: Hoare triple {36165#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 52 main_n)) (or (<= main_i 208) (<= main_n 52)))} assume i <= n * 4; {36166#(and (<= main_i 208) (or (< 52 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} is VALID [2019-02-27 13:06:54,446 INFO L273 TraceCheckUtils]: 105: Hoare triple {36166#(and (<= main_i 208) (or (< 52 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} assume a[i] != 23;i := i + 4; {36167#(and (<= main_i 212) (<= 53 main_n))} is VALID [2019-02-27 13:06:54,446 INFO L273 TraceCheckUtils]: 106: Hoare triple {36167#(and (<= main_i 212) (<= 53 main_n))} assume !(i <= n * 4); {36112#false} is VALID [2019-02-27 13:06:54,498 INFO L134 CoverageAnalysis]: Checked inductivity of 2756 backedges. 0 proven. 2756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:06:54,498 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 13:06:54,498 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 13:06:54,498 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 13:06:54,498 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 13:06:54,498 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 13:06:54,499 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 13:06:54,507 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 13:06:54,507 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-27 13:06:54,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:06:54,540 WARN L254 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 111 conjunts are in the unsatisfiable core [2019-02-27 13:06:54,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:06:54,555 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 13:06:54,566 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 13:06:54,572 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 13:06:54,580 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 13:06:54,580 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 13:06:54,581 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 13:06:54,581 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_56]. (and (= (store v_main_a_56 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-27 13:06:54,581 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 13:06:59,095 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 13:06:59,097 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 13:06:59,103 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 13:06:59,103 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 13:06:59,106 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 13:06:59,106 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= (select main_a 208) 23)) (<= main_i 212) (= 23 (select main_a .cse0)) (<= 208 .cse0))) [2019-02-27 13:06:59,106 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 208 .cse0)) (<= main_i 212) (<= 208 .cse0))) [2019-02-27 13:06:59,172 INFO L273 TraceCheckUtils]: 0: Hoare triple {36111#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {36171#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,173 INFO L273 TraceCheckUtils]: 1: Hoare triple {36171#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36175#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 13:06:59,174 INFO L273 TraceCheckUtils]: 2: Hoare triple {36175#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {36175#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 13:06:59,174 INFO L273 TraceCheckUtils]: 3: Hoare triple {36175#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {36182#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,175 INFO L273 TraceCheckUtils]: 4: Hoare triple {36182#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36182#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,176 INFO L273 TraceCheckUtils]: 5: Hoare triple {36182#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36189#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 13:06:59,176 INFO L273 TraceCheckUtils]: 6: Hoare triple {36189#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {36189#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 13:06:59,177 INFO L273 TraceCheckUtils]: 7: Hoare triple {36189#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {36196#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,178 INFO L273 TraceCheckUtils]: 8: Hoare triple {36196#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36196#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,178 INFO L273 TraceCheckUtils]: 9: Hoare triple {36196#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36203#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,179 INFO L273 TraceCheckUtils]: 10: Hoare triple {36203#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36203#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,180 INFO L273 TraceCheckUtils]: 11: Hoare triple {36203#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36210#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,180 INFO L273 TraceCheckUtils]: 12: Hoare triple {36210#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36210#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,181 INFO L273 TraceCheckUtils]: 13: Hoare triple {36210#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36217#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,182 INFO L273 TraceCheckUtils]: 14: Hoare triple {36217#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36217#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,182 INFO L273 TraceCheckUtils]: 15: Hoare triple {36217#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36224#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,183 INFO L273 TraceCheckUtils]: 16: Hoare triple {36224#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36224#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,184 INFO L273 TraceCheckUtils]: 17: Hoare triple {36224#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36231#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,184 INFO L273 TraceCheckUtils]: 18: Hoare triple {36231#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36231#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,185 INFO L273 TraceCheckUtils]: 19: Hoare triple {36231#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36238#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,186 INFO L273 TraceCheckUtils]: 20: Hoare triple {36238#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36238#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,186 INFO L273 TraceCheckUtils]: 21: Hoare triple {36238#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36245#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,187 INFO L273 TraceCheckUtils]: 22: Hoare triple {36245#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36245#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,188 INFO L273 TraceCheckUtils]: 23: Hoare triple {36245#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36252#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,188 INFO L273 TraceCheckUtils]: 24: Hoare triple {36252#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36252#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,189 INFO L273 TraceCheckUtils]: 25: Hoare triple {36252#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36259#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,190 INFO L273 TraceCheckUtils]: 26: Hoare triple {36259#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36259#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,190 INFO L273 TraceCheckUtils]: 27: Hoare triple {36259#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36266#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,191 INFO L273 TraceCheckUtils]: 28: Hoare triple {36266#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36266#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,192 INFO L273 TraceCheckUtils]: 29: Hoare triple {36266#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36273#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,192 INFO L273 TraceCheckUtils]: 30: Hoare triple {36273#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36273#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,193 INFO L273 TraceCheckUtils]: 31: Hoare triple {36273#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36280#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,194 INFO L273 TraceCheckUtils]: 32: Hoare triple {36280#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36280#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,194 INFO L273 TraceCheckUtils]: 33: Hoare triple {36280#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36287#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,195 INFO L273 TraceCheckUtils]: 34: Hoare triple {36287#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36287#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,196 INFO L273 TraceCheckUtils]: 35: Hoare triple {36287#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36294#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,196 INFO L273 TraceCheckUtils]: 36: Hoare triple {36294#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36294#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,197 INFO L273 TraceCheckUtils]: 37: Hoare triple {36294#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36301#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,198 INFO L273 TraceCheckUtils]: 38: Hoare triple {36301#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36301#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,198 INFO L273 TraceCheckUtils]: 39: Hoare triple {36301#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36308#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 13:06:59,199 INFO L273 TraceCheckUtils]: 40: Hoare triple {36308#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {36308#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 13:06:59,200 INFO L273 TraceCheckUtils]: 41: Hoare triple {36308#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {36315#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,200 INFO L273 TraceCheckUtils]: 42: Hoare triple {36315#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36315#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,201 INFO L273 TraceCheckUtils]: 43: Hoare triple {36315#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36322#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,202 INFO L273 TraceCheckUtils]: 44: Hoare triple {36322#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36322#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,202 INFO L273 TraceCheckUtils]: 45: Hoare triple {36322#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36329#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,203 INFO L273 TraceCheckUtils]: 46: Hoare triple {36329#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36329#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,204 INFO L273 TraceCheckUtils]: 47: Hoare triple {36329#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36336#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,204 INFO L273 TraceCheckUtils]: 48: Hoare triple {36336#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36336#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,205 INFO L273 TraceCheckUtils]: 49: Hoare triple {36336#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36343#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,206 INFO L273 TraceCheckUtils]: 50: Hoare triple {36343#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36343#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,206 INFO L273 TraceCheckUtils]: 51: Hoare triple {36343#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36350#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,207 INFO L273 TraceCheckUtils]: 52: Hoare triple {36350#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36350#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,208 INFO L273 TraceCheckUtils]: 53: Hoare triple {36350#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36357#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,208 INFO L273 TraceCheckUtils]: 54: Hoare triple {36357#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36357#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,209 INFO L273 TraceCheckUtils]: 55: Hoare triple {36357#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36364#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,210 INFO L273 TraceCheckUtils]: 56: Hoare triple {36364#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36364#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,210 INFO L273 TraceCheckUtils]: 57: Hoare triple {36364#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36371#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,211 INFO L273 TraceCheckUtils]: 58: Hoare triple {36371#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36371#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,212 INFO L273 TraceCheckUtils]: 59: Hoare triple {36371#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36378#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,212 INFO L273 TraceCheckUtils]: 60: Hoare triple {36378#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36378#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,213 INFO L273 TraceCheckUtils]: 61: Hoare triple {36378#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36385#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,214 INFO L273 TraceCheckUtils]: 62: Hoare triple {36385#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36385#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,215 INFO L273 TraceCheckUtils]: 63: Hoare triple {36385#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36392#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,215 INFO L273 TraceCheckUtils]: 64: Hoare triple {36392#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36392#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,216 INFO L273 TraceCheckUtils]: 65: Hoare triple {36392#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36399#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,217 INFO L273 TraceCheckUtils]: 66: Hoare triple {36399#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36399#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,217 INFO L273 TraceCheckUtils]: 67: Hoare triple {36399#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36406#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,218 INFO L273 TraceCheckUtils]: 68: Hoare triple {36406#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36406#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,219 INFO L273 TraceCheckUtils]: 69: Hoare triple {36406#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36413#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 13:06:59,219 INFO L273 TraceCheckUtils]: 70: Hoare triple {36413#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {36413#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 13:06:59,220 INFO L273 TraceCheckUtils]: 71: Hoare triple {36413#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {36420#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,221 INFO L273 TraceCheckUtils]: 72: Hoare triple {36420#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36420#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,222 INFO L273 TraceCheckUtils]: 73: Hoare triple {36420#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36427#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,222 INFO L273 TraceCheckUtils]: 74: Hoare triple {36427#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36427#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,223 INFO L273 TraceCheckUtils]: 75: Hoare triple {36427#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36434#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,224 INFO L273 TraceCheckUtils]: 76: Hoare triple {36434#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36434#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,224 INFO L273 TraceCheckUtils]: 77: Hoare triple {36434#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36441#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,225 INFO L273 TraceCheckUtils]: 78: Hoare triple {36441#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36441#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,226 INFO L273 TraceCheckUtils]: 79: Hoare triple {36441#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36448#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,226 INFO L273 TraceCheckUtils]: 80: Hoare triple {36448#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36448#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,227 INFO L273 TraceCheckUtils]: 81: Hoare triple {36448#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36455#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-02-27 13:06:59,228 INFO L273 TraceCheckUtils]: 82: Hoare triple {36455#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {36455#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-02-27 13:06:59,228 INFO L273 TraceCheckUtils]: 83: Hoare triple {36455#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {36462#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,229 INFO L273 TraceCheckUtils]: 84: Hoare triple {36462#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36462#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,230 INFO L273 TraceCheckUtils]: 85: Hoare triple {36462#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36469#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,230 INFO L273 TraceCheckUtils]: 86: Hoare triple {36469#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36469#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,231 INFO L273 TraceCheckUtils]: 87: Hoare triple {36469#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36476#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,232 INFO L273 TraceCheckUtils]: 88: Hoare triple {36476#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36476#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,232 INFO L273 TraceCheckUtils]: 89: Hoare triple {36476#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36483#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,233 INFO L273 TraceCheckUtils]: 90: Hoare triple {36483#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36483#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,234 INFO L273 TraceCheckUtils]: 91: Hoare triple {36483#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36490#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,234 INFO L273 TraceCheckUtils]: 92: Hoare triple {36490#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36490#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,235 INFO L273 TraceCheckUtils]: 93: Hoare triple {36490#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36497#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,236 INFO L273 TraceCheckUtils]: 94: Hoare triple {36497#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36497#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,236 INFO L273 TraceCheckUtils]: 95: Hoare triple {36497#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36504#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,237 INFO L273 TraceCheckUtils]: 96: Hoare triple {36504#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36504#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,238 INFO L273 TraceCheckUtils]: 97: Hoare triple {36504#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36511#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,238 INFO L273 TraceCheckUtils]: 98: Hoare triple {36511#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36511#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,239 INFO L273 TraceCheckUtils]: 99: Hoare triple {36511#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36518#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,240 INFO L273 TraceCheckUtils]: 100: Hoare triple {36518#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36518#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,240 INFO L273 TraceCheckUtils]: 101: Hoare triple {36518#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36525#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,241 INFO L273 TraceCheckUtils]: 102: Hoare triple {36525#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36525#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,242 INFO L273 TraceCheckUtils]: 103: Hoare triple {36525#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36532#(and (= main_i 208) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,242 INFO L273 TraceCheckUtils]: 104: Hoare triple {36532#(and (= main_i 208) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36536#(and (= main_i 208) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:06:59,243 INFO L273 TraceCheckUtils]: 105: Hoare triple {36536#(and (= main_i 208) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36167#(and (<= main_i 212) (<= 53 main_n))} is VALID [2019-02-27 13:06:59,244 INFO L273 TraceCheckUtils]: 106: Hoare triple {36167#(and (<= main_i 212) (<= 53 main_n))} assume !(i <= n * 4); {36112#false} is VALID [2019-02-27 13:06:59,269 INFO L134 CoverageAnalysis]: Checked inductivity of 2756 backedges. 0 proven. 2756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:06:59,269 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 13:07:07,551 INFO L273 TraceCheckUtils]: 106: Hoare triple {36543#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {36112#false} is VALID [2019-02-27 13:07:07,552 INFO L273 TraceCheckUtils]: 105: Hoare triple {36547#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {36543#(<= main_i (* 4 main_n))} is VALID [2019-02-27 13:07:07,553 INFO L273 TraceCheckUtils]: 104: Hoare triple {36551#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {36547#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:07:07,553 INFO L273 TraceCheckUtils]: 103: Hoare triple {36555#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {36551#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:07:07,554 INFO L273 TraceCheckUtils]: 102: Hoare triple {36555#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {36555#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:07:07,554 INFO L273 TraceCheckUtils]: 101: Hoare triple {36562#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {36555#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:07:07,555 INFO L273 TraceCheckUtils]: 100: Hoare triple {36562#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {36562#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:07:07,556 INFO L273 TraceCheckUtils]: 99: Hoare triple {36569#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {36562#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:07:07,556 INFO L273 TraceCheckUtils]: 98: Hoare triple {36569#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {36569#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:07:07,557 INFO L273 TraceCheckUtils]: 97: Hoare triple {36576#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {36569#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:07:07,558 INFO L273 TraceCheckUtils]: 96: Hoare triple {36576#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {36576#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:07:07,559 INFO L273 TraceCheckUtils]: 95: Hoare triple {36583#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36576#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:07:07,559 INFO L273 TraceCheckUtils]: 94: Hoare triple {36583#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {36583#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:07:07,561 INFO L273 TraceCheckUtils]: 93: Hoare triple {36590#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {36583#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:07:07,561 INFO L273 TraceCheckUtils]: 92: Hoare triple {36590#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {36590#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:07:07,562 INFO L273 TraceCheckUtils]: 91: Hoare triple {36597#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36590#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:07:07,563 INFO L273 TraceCheckUtils]: 90: Hoare triple {36597#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {36597#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:07:07,564 INFO L273 TraceCheckUtils]: 89: Hoare triple {36604#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36597#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:07:07,564 INFO L273 TraceCheckUtils]: 88: Hoare triple {36604#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {36604#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:07:07,565 INFO L273 TraceCheckUtils]: 87: Hoare triple {36611#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36604#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:07:07,566 INFO L273 TraceCheckUtils]: 86: Hoare triple {36611#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {36611#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:07:07,567 INFO L273 TraceCheckUtils]: 85: Hoare triple {36618#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {36611#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:07:07,567 INFO L273 TraceCheckUtils]: 84: Hoare triple {36618#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {36618#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:07:07,569 INFO L273 TraceCheckUtils]: 83: Hoare triple {36625#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36618#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:07:07,569 INFO L273 TraceCheckUtils]: 82: Hoare triple {36625#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {36625#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:07:07,570 INFO L273 TraceCheckUtils]: 81: Hoare triple {36632#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36625#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:07:07,571 INFO L273 TraceCheckUtils]: 80: Hoare triple {36632#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {36632#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:07:07,572 INFO L273 TraceCheckUtils]: 79: Hoare triple {36639#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {36632#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:07:07,572 INFO L273 TraceCheckUtils]: 78: Hoare triple {36639#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {36639#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:07:07,573 INFO L273 TraceCheckUtils]: 77: Hoare triple {36646#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36639#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:07:07,574 INFO L273 TraceCheckUtils]: 76: Hoare triple {36646#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {36646#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:07:07,575 INFO L273 TraceCheckUtils]: 75: Hoare triple {36653#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {36646#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:07:07,575 INFO L273 TraceCheckUtils]: 74: Hoare triple {36653#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {36653#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:07:07,576 INFO L273 TraceCheckUtils]: 73: Hoare triple {36660#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {36653#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:07:07,577 INFO L273 TraceCheckUtils]: 72: Hoare triple {36660#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {36660#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:07:07,578 INFO L273 TraceCheckUtils]: 71: Hoare triple {36667#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {36660#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:07:07,578 INFO L273 TraceCheckUtils]: 70: Hoare triple {36667#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {36667#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:07:07,579 INFO L273 TraceCheckUtils]: 69: Hoare triple {36674#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {36667#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:07:07,580 INFO L273 TraceCheckUtils]: 68: Hoare triple {36674#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {36674#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:07:07,581 INFO L273 TraceCheckUtils]: 67: Hoare triple {36681#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {36674#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:07:07,582 INFO L273 TraceCheckUtils]: 66: Hoare triple {36681#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {36681#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:07:07,583 INFO L273 TraceCheckUtils]: 65: Hoare triple {36688#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {36681#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:07:07,583 INFO L273 TraceCheckUtils]: 64: Hoare triple {36688#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {36688#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:07:07,584 INFO L273 TraceCheckUtils]: 63: Hoare triple {36695#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36688#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:07:07,585 INFO L273 TraceCheckUtils]: 62: Hoare triple {36695#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {36695#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:07:07,586 INFO L273 TraceCheckUtils]: 61: Hoare triple {36702#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36695#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:07:07,586 INFO L273 TraceCheckUtils]: 60: Hoare triple {36702#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {36702#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:07:07,588 INFO L273 TraceCheckUtils]: 59: Hoare triple {36709#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36702#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:07:07,588 INFO L273 TraceCheckUtils]: 58: Hoare triple {36709#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {36709#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:07:07,589 INFO L273 TraceCheckUtils]: 57: Hoare triple {36716#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {36709#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:07:07,590 INFO L273 TraceCheckUtils]: 56: Hoare triple {36716#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {36716#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:07:07,591 INFO L273 TraceCheckUtils]: 55: Hoare triple {36723#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36716#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:07:07,591 INFO L273 TraceCheckUtils]: 54: Hoare triple {36723#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {36723#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:07:07,592 INFO L273 TraceCheckUtils]: 53: Hoare triple {36730#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {36723#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:07:07,593 INFO L273 TraceCheckUtils]: 52: Hoare triple {36730#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {36730#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:07:07,594 INFO L273 TraceCheckUtils]: 51: Hoare triple {36737#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {36730#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:07:07,594 INFO L273 TraceCheckUtils]: 50: Hoare triple {36737#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {36737#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:07:07,596 INFO L273 TraceCheckUtils]: 49: Hoare triple {36744#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {36737#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:07:07,596 INFO L273 TraceCheckUtils]: 48: Hoare triple {36744#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {36744#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:07:07,597 INFO L273 TraceCheckUtils]: 47: Hoare triple {36751#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36744#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:07:07,598 INFO L273 TraceCheckUtils]: 46: Hoare triple {36751#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {36751#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:07:07,599 INFO L273 TraceCheckUtils]: 45: Hoare triple {36758#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36751#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:07:07,599 INFO L273 TraceCheckUtils]: 44: Hoare triple {36758#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {36758#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:07:07,601 INFO L273 TraceCheckUtils]: 43: Hoare triple {36765#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {36758#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:07:07,601 INFO L273 TraceCheckUtils]: 42: Hoare triple {36765#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {36765#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:07:07,602 INFO L273 TraceCheckUtils]: 41: Hoare triple {36772#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36765#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:07:07,603 INFO L273 TraceCheckUtils]: 40: Hoare triple {36772#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {36772#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:07:07,604 INFO L273 TraceCheckUtils]: 39: Hoare triple {36779#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {36772#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:07:07,604 INFO L273 TraceCheckUtils]: 38: Hoare triple {36779#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {36779#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:07:07,605 INFO L273 TraceCheckUtils]: 37: Hoare triple {36786#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {36779#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:07:07,606 INFO L273 TraceCheckUtils]: 36: Hoare triple {36786#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {36786#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:07:07,607 INFO L273 TraceCheckUtils]: 35: Hoare triple {36793#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {36786#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:07:07,607 INFO L273 TraceCheckUtils]: 34: Hoare triple {36793#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {36793#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:07:07,608 INFO L273 TraceCheckUtils]: 33: Hoare triple {36800#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {36793#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:07:07,609 INFO L273 TraceCheckUtils]: 32: Hoare triple {36800#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {36800#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:07:07,610 INFO L273 TraceCheckUtils]: 31: Hoare triple {36807#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {36800#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:07:07,610 INFO L273 TraceCheckUtils]: 30: Hoare triple {36807#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {36807#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-02-27 13:07:07,611 INFO L273 TraceCheckUtils]: 29: Hoare triple {36814#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {36807#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-02-27 13:07:07,612 INFO L273 TraceCheckUtils]: 28: Hoare triple {36814#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {36814#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-02-27 13:07:07,613 INFO L273 TraceCheckUtils]: 27: Hoare triple {36821#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {36814#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-02-27 13:07:07,614 INFO L273 TraceCheckUtils]: 26: Hoare triple {36821#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {36821#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-02-27 13:07:07,615 INFO L273 TraceCheckUtils]: 25: Hoare triple {36828#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {36821#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-02-27 13:07:07,615 INFO L273 TraceCheckUtils]: 24: Hoare triple {36828#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {36828#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-02-27 13:07:07,616 INFO L273 TraceCheckUtils]: 23: Hoare triple {36835#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {36828#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-02-27 13:07:07,617 INFO L273 TraceCheckUtils]: 22: Hoare triple {36835#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {36835#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-02-27 13:07:07,618 INFO L273 TraceCheckUtils]: 21: Hoare triple {36842#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36835#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-02-27 13:07:07,618 INFO L273 TraceCheckUtils]: 20: Hoare triple {36842#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume i <= n * 4; {36842#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-02-27 13:07:07,619 INFO L273 TraceCheckUtils]: 19: Hoare triple {36849#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36842#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-02-27 13:07:07,620 INFO L273 TraceCheckUtils]: 18: Hoare triple {36849#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume i <= n * 4; {36849#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-02-27 13:07:07,621 INFO L273 TraceCheckUtils]: 17: Hoare triple {36856#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume a[i] != 23;i := i + 4; {36849#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-02-27 13:07:07,621 INFO L273 TraceCheckUtils]: 16: Hoare triple {36856#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume i <= n * 4; {36856#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-02-27 13:07:07,622 INFO L273 TraceCheckUtils]: 15: Hoare triple {36863#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume a[i] != 23;i := i + 4; {36856#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-02-27 13:07:07,623 INFO L273 TraceCheckUtils]: 14: Hoare triple {36863#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume i <= n * 4; {36863#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-02-27 13:07:07,624 INFO L273 TraceCheckUtils]: 13: Hoare triple {36870#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume a[i] != 23;i := i + 4; {36863#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-02-27 13:07:07,624 INFO L273 TraceCheckUtils]: 12: Hoare triple {36870#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume i <= n * 4; {36870#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2019-02-27 13:07:07,625 INFO L273 TraceCheckUtils]: 11: Hoare triple {36877#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume a[i] != 23;i := i + 4; {36870#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2019-02-27 13:07:07,626 INFO L273 TraceCheckUtils]: 10: Hoare triple {36877#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume i <= n * 4; {36877#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2019-02-27 13:07:07,627 INFO L273 TraceCheckUtils]: 9: Hoare triple {36884#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} assume a[i] != 23;i := i + 4; {36877#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2019-02-27 13:07:07,627 INFO L273 TraceCheckUtils]: 8: Hoare triple {36884#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} assume i <= n * 4; {36884#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} is VALID [2019-02-27 13:07:07,628 INFO L273 TraceCheckUtils]: 7: Hoare triple {36891#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} assume a[i] != 23;i := i + 4; {36884#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} is VALID [2019-02-27 13:07:07,629 INFO L273 TraceCheckUtils]: 6: Hoare triple {36891#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} assume i <= n * 4; {36891#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} is VALID [2019-02-27 13:07:07,630 INFO L273 TraceCheckUtils]: 5: Hoare triple {36898#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} assume a[i] != 23;i := i + 4; {36891#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} is VALID [2019-02-27 13:07:07,631 INFO L273 TraceCheckUtils]: 4: Hoare triple {36898#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} assume i <= n * 4; {36898#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} is VALID [2019-02-27 13:07:07,632 INFO L273 TraceCheckUtils]: 3: Hoare triple {36905#(or (< (+ main_i 207) (* 4 main_n)) (< (* 4 main_n) (+ main_i 204)) (= (select main_a (+ main_i 204)) 23))} assume a[i] != 23;i := i + 4; {36898#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} is VALID [2019-02-27 13:07:07,632 INFO L273 TraceCheckUtils]: 2: Hoare triple {36905#(or (< (+ main_i 207) (* 4 main_n)) (< (* 4 main_n) (+ main_i 204)) (= (select main_a (+ main_i 204)) 23))} assume i <= n * 4; {36905#(or (< (+ main_i 207) (* 4 main_n)) (< (* 4 main_n) (+ main_i 204)) (= (select main_a (+ main_i 204)) 23))} is VALID [2019-02-27 13:07:07,633 INFO L273 TraceCheckUtils]: 1: Hoare triple {36912#(or (= (select main_a (+ main_i 208)) 23) (< (+ main_i 211) (* 4 main_n)) (< (* 4 main_n) (+ main_i 208)))} assume a[i] != 23;i := i + 4; {36905#(or (< (+ main_i 207) (* 4 main_n)) (< (* 4 main_n) (+ main_i 204)) (= (select main_a (+ main_i 204)) 23))} is VALID [2019-02-27 13:07:07,634 INFO L273 TraceCheckUtils]: 0: Hoare triple {36111#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {36912#(or (= (select main_a (+ main_i 208)) 23) (< (+ main_i 211) (* 4 main_n)) (< (* 4 main_n) (+ main_i 208)))} is VALID [2019-02-27 13:07:07,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2756 backedges. 0 proven. 2756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:07:07,693 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 13:07:07,693 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 55, 55] total 164 [2019-02-27 13:07:07,693 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 13:07:07,694 INFO L78 Accepts]: Start accepts. Automaton has 111 states. Word has length 107 [2019-02-27 13:07:07,694 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 13:07:07,694 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 111 states. [2019-02-27 13:07:07,955 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 213 edges. 213 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 13:07:07,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 111 states [2019-02-27 13:07:07,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2019-02-27 13:07:07,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3308, Invalid=24082, Unknown=0, NotChecked=0, Total=27390 [2019-02-27 13:07:07,957 INFO L87 Difference]: Start difference. First operand 108 states and 108 transitions. Second operand 111 states. [2019-02-27 13:07:22,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:07:22,962 INFO L93 Difference]: Finished difference Result 112 states and 112 transitions. [2019-02-27 13:07:22,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2019-02-27 13:07:22,963 INFO L78 Accepts]: Start accepts. Automaton has 111 states. Word has length 107 [2019-02-27 13:07:22,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-27 13:07:22,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-02-27 13:07:22,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 112 transitions. [2019-02-27 13:07:22,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-02-27 13:07:22,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 112 transitions. [2019-02-27 13:07:22,964 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 57 states and 112 transitions. [2019-02-27 13:07:23,088 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 112 edges. 112 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 13:07:23,090 INFO L225 Difference]: With dead ends: 112 [2019-02-27 13:07:23,090 INFO L226 Difference]: Without dead ends: 111 [2019-02-27 13:07:23,091 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 102 SyntacticMatches, 1 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6156 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=3308, Invalid=24082, Unknown=0, NotChecked=0, Total=27390 [2019-02-27 13:07:23,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2019-02-27 13:07:23,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2019-02-27 13:07:23,194 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-27 13:07:23,195 INFO L82 GeneralOperation]: Start isEquivalent. First operand 111 states. Second operand 110 states. [2019-02-27 13:07:23,195 INFO L74 IsIncluded]: Start isIncluded. First operand 111 states. Second operand 110 states. [2019-02-27 13:07:23,195 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 110 states. [2019-02-27 13:07:23,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:07:23,197 INFO L93 Difference]: Finished difference Result 111 states and 111 transitions. [2019-02-27 13:07:23,197 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 111 transitions. [2019-02-27 13:07:23,197 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 13:07:23,197 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 13:07:23,197 INFO L74 IsIncluded]: Start isIncluded. First operand 110 states. Second operand 111 states. [2019-02-27 13:07:23,198 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 111 states. [2019-02-27 13:07:23,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-27 13:07:23,199 INFO L93 Difference]: Finished difference Result 111 states and 111 transitions. [2019-02-27 13:07:23,199 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 111 transitions. [2019-02-27 13:07:23,199 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-27 13:07:23,200 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-27 13:07:23,200 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-27 13:07:23,200 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-27 13:07:23,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-02-27 13:07:23,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 110 transitions. [2019-02-27 13:07:23,201 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 110 transitions. Word has length 107 [2019-02-27 13:07:23,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-27 13:07:23,201 INFO L480 AbstractCegarLoop]: Abstraction has 110 states and 110 transitions. [2019-02-27 13:07:23,201 INFO L481 AbstractCegarLoop]: Interpolant automaton has 111 states. [2019-02-27 13:07:23,201 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 110 transitions. [2019-02-27 13:07:23,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-02-27 13:07:23,201 INFO L394 BasicCegarLoop]: Found error trace [2019-02-27 13:07:23,202 INFO L402 BasicCegarLoop]: trace histogram [54, 53, 1, 1] [2019-02-27 13:07:23,202 INFO L423 AbstractCegarLoop]: === Iteration 54 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-27 13:07:23,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-27 13:07:23,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1628127862, now seen corresponding path program 53 times [2019-02-27 13:07:23,202 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-27 13:07:23,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 13:07:23,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-27 13:07:23,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-27 13:07:23,203 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-27 13:07:23,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:07:26,824 INFO L273 TraceCheckUtils]: 0: Hoare triple {37468#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {37470#(and (or (<= main_n 53) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,826 INFO L273 TraceCheckUtils]: 1: Hoare triple {37470#(and (or (<= main_n 53) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37471#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 4)))} is VALID [2019-02-27 13:07:26,826 INFO L273 TraceCheckUtils]: 2: Hoare triple {37471#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 4)))} assume i <= n * 4; {37471#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 4)))} is VALID [2019-02-27 13:07:26,827 INFO L273 TraceCheckUtils]: 3: Hoare triple {37471#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {37472#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 8) (<= main_n 53)))} is VALID [2019-02-27 13:07:26,828 INFO L273 TraceCheckUtils]: 4: Hoare triple {37472#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 8) (<= main_n 53)))} assume i <= n * 4; {37472#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 8) (<= main_n 53)))} is VALID [2019-02-27 13:07:26,829 INFO L273 TraceCheckUtils]: 5: Hoare triple {37472#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 8) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37473#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 12)))} is VALID [2019-02-27 13:07:26,830 INFO L273 TraceCheckUtils]: 6: Hoare triple {37473#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 12)))} assume i <= n * 4; {37473#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 12)))} is VALID [2019-02-27 13:07:26,831 INFO L273 TraceCheckUtils]: 7: Hoare triple {37473#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {37474#(and (or (<= main_n 53) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,832 INFO L273 TraceCheckUtils]: 8: Hoare triple {37474#(and (or (<= main_n 53) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37474#(and (or (<= main_n 53) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,833 INFO L273 TraceCheckUtils]: 9: Hoare triple {37474#(and (or (<= main_n 53) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37475#(and (or (<= main_n 53) (<= main_i 20)) (or (< 53 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:07:26,833 INFO L273 TraceCheckUtils]: 10: Hoare triple {37475#(and (or (<= main_n 53) (<= main_i 20)) (or (< 53 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {37475#(and (or (<= main_n 53) (<= main_i 20)) (or (< 53 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:07:26,834 INFO L273 TraceCheckUtils]: 11: Hoare triple {37475#(and (or (<= main_n 53) (<= main_i 20)) (or (< 53 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {37476#(and (or (<= main_n 53) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,835 INFO L273 TraceCheckUtils]: 12: Hoare triple {37476#(and (or (<= main_n 53) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37476#(and (or (<= main_n 53) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,836 INFO L273 TraceCheckUtils]: 13: Hoare triple {37476#(and (or (<= main_n 53) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37477#(and (or (<= main_n 53) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,837 INFO L273 TraceCheckUtils]: 14: Hoare triple {37477#(and (or (<= main_n 53) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37477#(and (or (<= main_n 53) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,838 INFO L273 TraceCheckUtils]: 15: Hoare triple {37477#(and (or (<= main_n 53) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37478#(and (or (<= main_i 32) (<= main_n 53)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,839 INFO L273 TraceCheckUtils]: 16: Hoare triple {37478#(and (or (<= main_i 32) (<= main_n 53)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37478#(and (or (<= main_i 32) (<= main_n 53)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,840 INFO L273 TraceCheckUtils]: 17: Hoare triple {37478#(and (or (<= main_i 32) (<= main_n 53)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37479#(and (or (<= main_i 36) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,841 INFO L273 TraceCheckUtils]: 18: Hoare triple {37479#(and (or (<= main_i 36) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 53 main_n)))} assume i <= n * 4; {37479#(and (or (<= main_i 36) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,842 INFO L273 TraceCheckUtils]: 19: Hoare triple {37479#(and (or (<= main_i 36) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37480#(and (or (<= main_i 40) (<= main_n 53)) (or (< 53 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:07:26,842 INFO L273 TraceCheckUtils]: 20: Hoare triple {37480#(and (or (<= main_i 40) (<= main_n 53)) (or (< 53 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {37480#(and (or (<= main_i 40) (<= main_n 53)) (or (< 53 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:07:26,843 INFO L273 TraceCheckUtils]: 21: Hoare triple {37480#(and (or (<= main_i 40) (<= main_n 53)) (or (< 53 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {37481#(and (or (<= main_n 53) (<= main_i 44)) (or (< 53 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:07:26,844 INFO L273 TraceCheckUtils]: 22: Hoare triple {37481#(and (or (<= main_n 53) (<= main_i 44)) (or (< 53 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {37481#(and (or (<= main_n 53) (<= main_i 44)) (or (< 53 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:07:26,845 INFO L273 TraceCheckUtils]: 23: Hoare triple {37481#(and (or (<= main_n 53) (<= main_i 44)) (or (< 53 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {37482#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 48)))} is VALID [2019-02-27 13:07:26,846 INFO L273 TraceCheckUtils]: 24: Hoare triple {37482#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 48)))} assume i <= n * 4; {37482#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 48)))} is VALID [2019-02-27 13:07:26,847 INFO L273 TraceCheckUtils]: 25: Hoare triple {37482#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 48)))} assume a[i] != 23;i := i + 4; {37483#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 52) (<= main_n 53)))} is VALID [2019-02-27 13:07:26,848 INFO L273 TraceCheckUtils]: 26: Hoare triple {37483#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 52) (<= main_n 53)))} assume i <= n * 4; {37483#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 52) (<= main_n 53)))} is VALID [2019-02-27 13:07:26,849 INFO L273 TraceCheckUtils]: 27: Hoare triple {37483#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 52) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37484#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 56)))} is VALID [2019-02-27 13:07:26,849 INFO L273 TraceCheckUtils]: 28: Hoare triple {37484#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 56)))} assume i <= n * 4; {37484#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 56)))} is VALID [2019-02-27 13:07:26,850 INFO L273 TraceCheckUtils]: 29: Hoare triple {37484#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 56)))} assume a[i] != 23;i := i + 4; {37485#(and (or (<= main_n 53) (<= main_i 60)) (or (< 53 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:07:26,851 INFO L273 TraceCheckUtils]: 30: Hoare triple {37485#(and (or (<= main_n 53) (<= main_i 60)) (or (< 53 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {37485#(and (or (<= main_n 53) (<= main_i 60)) (or (< 53 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:07:26,852 INFO L273 TraceCheckUtils]: 31: Hoare triple {37485#(and (or (<= main_n 53) (<= main_i 60)) (or (< 53 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {37486#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 64) (<= main_n 53)))} is VALID [2019-02-27 13:07:26,853 INFO L273 TraceCheckUtils]: 32: Hoare triple {37486#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 64) (<= main_n 53)))} assume i <= n * 4; {37486#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 64) (<= main_n 53)))} is VALID [2019-02-27 13:07:26,854 INFO L273 TraceCheckUtils]: 33: Hoare triple {37486#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 64) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37487#(and (or (<= main_n 53) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,855 INFO L273 TraceCheckUtils]: 34: Hoare triple {37487#(and (or (<= main_n 53) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37487#(and (or (<= main_n 53) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,856 INFO L273 TraceCheckUtils]: 35: Hoare triple {37487#(and (or (<= main_n 53) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37488#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 72)))} is VALID [2019-02-27 13:07:26,857 INFO L273 TraceCheckUtils]: 36: Hoare triple {37488#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 72)))} assume i <= n * 4; {37488#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 72)))} is VALID [2019-02-27 13:07:26,858 INFO L273 TraceCheckUtils]: 37: Hoare triple {37488#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 72)))} assume a[i] != 23;i := i + 4; {37489#(and (or (<= main_i 76) (<= main_n 53)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,858 INFO L273 TraceCheckUtils]: 38: Hoare triple {37489#(and (or (<= main_i 76) (<= main_n 53)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37489#(and (or (<= main_i 76) (<= main_n 53)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,859 INFO L273 TraceCheckUtils]: 39: Hoare triple {37489#(and (or (<= main_i 76) (<= main_n 53)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37490#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 80)))} is VALID [2019-02-27 13:07:26,860 INFO L273 TraceCheckUtils]: 40: Hoare triple {37490#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 80)))} assume i <= n * 4; {37490#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 80)))} is VALID [2019-02-27 13:07:26,861 INFO L273 TraceCheckUtils]: 41: Hoare triple {37490#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 80)))} assume a[i] != 23;i := i + 4; {37491#(and (or (<= main_i 84) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,862 INFO L273 TraceCheckUtils]: 42: Hoare triple {37491#(and (or (<= main_i 84) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 53 main_n)))} assume i <= n * 4; {37491#(and (or (<= main_i 84) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,863 INFO L273 TraceCheckUtils]: 43: Hoare triple {37491#(and (or (<= main_i 84) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37492#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 88) (<= main_n 53)))} is VALID [2019-02-27 13:07:26,864 INFO L273 TraceCheckUtils]: 44: Hoare triple {37492#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 88) (<= main_n 53)))} assume i <= n * 4; {37492#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 88) (<= main_n 53)))} is VALID [2019-02-27 13:07:26,865 INFO L273 TraceCheckUtils]: 45: Hoare triple {37492#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 88) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37493#(and (or (< 53 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 53)))} is VALID [2019-02-27 13:07:26,866 INFO L273 TraceCheckUtils]: 46: Hoare triple {37493#(and (or (< 53 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 53)))} assume i <= n * 4; {37493#(and (or (< 53 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 53)))} is VALID [2019-02-27 13:07:26,867 INFO L273 TraceCheckUtils]: 47: Hoare triple {37493#(and (or (< 53 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37494#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 96) (<= main_n 53)))} is VALID [2019-02-27 13:07:26,868 INFO L273 TraceCheckUtils]: 48: Hoare triple {37494#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 96) (<= main_n 53)))} assume i <= n * 4; {37494#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 96) (<= main_n 53)))} is VALID [2019-02-27 13:07:26,869 INFO L273 TraceCheckUtils]: 49: Hoare triple {37494#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 96) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37495#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 100) (<= main_n 53)))} is VALID [2019-02-27 13:07:26,870 INFO L273 TraceCheckUtils]: 50: Hoare triple {37495#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 100) (<= main_n 53)))} assume i <= n * 4; {37495#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 100) (<= main_n 53)))} is VALID [2019-02-27 13:07:26,871 INFO L273 TraceCheckUtils]: 51: Hoare triple {37495#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 100) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37496#(and (or (<= main_i 104) (<= main_n 53)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,871 INFO L273 TraceCheckUtils]: 52: Hoare triple {37496#(and (or (<= main_i 104) (<= main_n 53)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37496#(and (or (<= main_i 104) (<= main_n 53)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,873 INFO L273 TraceCheckUtils]: 53: Hoare triple {37496#(and (or (<= main_i 104) (<= main_n 53)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37497#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 108)))} is VALID [2019-02-27 13:07:26,873 INFO L273 TraceCheckUtils]: 54: Hoare triple {37497#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 108)))} assume i <= n * 4; {37497#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 108)))} is VALID [2019-02-27 13:07:26,874 INFO L273 TraceCheckUtils]: 55: Hoare triple {37497#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 108)))} assume a[i] != 23;i := i + 4; {37498#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 112)))} is VALID [2019-02-27 13:07:26,875 INFO L273 TraceCheckUtils]: 56: Hoare triple {37498#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 112)))} assume i <= n * 4; {37498#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 112)))} is VALID [2019-02-27 13:07:26,876 INFO L273 TraceCheckUtils]: 57: Hoare triple {37498#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 112)))} assume a[i] != 23;i := i + 4; {37499#(and (or (<= main_n 53) (<= main_i 116)) (or (< 53 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:07:26,877 INFO L273 TraceCheckUtils]: 58: Hoare triple {37499#(and (or (<= main_n 53) (<= main_i 116)) (or (< 53 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {37499#(and (or (<= main_n 53) (<= main_i 116)) (or (< 53 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:07:26,878 INFO L273 TraceCheckUtils]: 59: Hoare triple {37499#(and (or (<= main_n 53) (<= main_i 116)) (or (< 53 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {37500#(and (or (< 53 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 53)))} is VALID [2019-02-27 13:07:26,879 INFO L273 TraceCheckUtils]: 60: Hoare triple {37500#(and (or (< 53 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 53)))} assume i <= n * 4; {37500#(and (or (< 53 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 53)))} is VALID [2019-02-27 13:07:26,880 INFO L273 TraceCheckUtils]: 61: Hoare triple {37500#(and (or (< 53 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37501#(and (or (<= main_n 53) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,881 INFO L273 TraceCheckUtils]: 62: Hoare triple {37501#(and (or (<= main_n 53) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37501#(and (or (<= main_n 53) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,882 INFO L273 TraceCheckUtils]: 63: Hoare triple {37501#(and (or (<= main_n 53) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37502#(and (or (<= main_n 53) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,882 INFO L273 TraceCheckUtils]: 64: Hoare triple {37502#(and (or (<= main_n 53) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 53 main_n)))} assume i <= n * 4; {37502#(and (or (<= main_n 53) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,883 INFO L273 TraceCheckUtils]: 65: Hoare triple {37502#(and (or (<= main_n 53) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37503#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 132) (<= main_n 53)))} is VALID [2019-02-27 13:07:26,884 INFO L273 TraceCheckUtils]: 66: Hoare triple {37503#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 132) (<= main_n 53)))} assume i <= n * 4; {37503#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 132) (<= main_n 53)))} is VALID [2019-02-27 13:07:26,885 INFO L273 TraceCheckUtils]: 67: Hoare triple {37503#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 132) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37504#(and (or (< 53 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 53)))} is VALID [2019-02-27 13:07:26,886 INFO L273 TraceCheckUtils]: 68: Hoare triple {37504#(and (or (< 53 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 53)))} assume i <= n * 4; {37504#(and (or (< 53 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 53)))} is VALID [2019-02-27 13:07:26,887 INFO L273 TraceCheckUtils]: 69: Hoare triple {37504#(and (or (< 53 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37505#(and (or (< 53 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 53) (<= main_i 140)))} is VALID [2019-02-27 13:07:26,888 INFO L273 TraceCheckUtils]: 70: Hoare triple {37505#(and (or (< 53 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 53) (<= main_i 140)))} assume i <= n * 4; {37505#(and (or (< 53 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 53) (<= main_i 140)))} is VALID [2019-02-27 13:07:26,889 INFO L273 TraceCheckUtils]: 71: Hoare triple {37505#(and (or (< 53 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 53) (<= main_i 140)))} assume a[i] != 23;i := i + 4; {37506#(and (or (< 53 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 53) (<= main_i 144)))} is VALID [2019-02-27 13:07:26,890 INFO L273 TraceCheckUtils]: 72: Hoare triple {37506#(and (or (< 53 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 53) (<= main_i 144)))} assume i <= n * 4; {37506#(and (or (< 53 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 53) (<= main_i 144)))} is VALID [2019-02-27 13:07:26,891 INFO L273 TraceCheckUtils]: 73: Hoare triple {37506#(and (or (< 53 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 53) (<= main_i 144)))} assume a[i] != 23;i := i + 4; {37507#(and (or (< 53 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 53) (<= main_i 148)))} is VALID [2019-02-27 13:07:26,891 INFO L273 TraceCheckUtils]: 74: Hoare triple {37507#(and (or (< 53 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 53) (<= main_i 148)))} assume i <= n * 4; {37507#(and (or (< 53 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 53) (<= main_i 148)))} is VALID [2019-02-27 13:07:26,892 INFO L273 TraceCheckUtils]: 75: Hoare triple {37507#(and (or (< 53 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 53) (<= main_i 148)))} assume a[i] != 23;i := i + 4; {37508#(and (or (<= main_n 53) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,893 INFO L273 TraceCheckUtils]: 76: Hoare triple {37508#(and (or (<= main_n 53) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37508#(and (or (<= main_n 53) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,894 INFO L273 TraceCheckUtils]: 77: Hoare triple {37508#(and (or (<= main_n 53) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37509#(and (or (< 53 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 53)))} is VALID [2019-02-27 13:07:26,895 INFO L273 TraceCheckUtils]: 78: Hoare triple {37509#(and (or (< 53 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 53)))} assume i <= n * 4; {37509#(and (or (< 53 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 53)))} is VALID [2019-02-27 13:07:26,896 INFO L273 TraceCheckUtils]: 79: Hoare triple {37509#(and (or (< 53 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37510#(and (or (<= main_n 53) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,897 INFO L273 TraceCheckUtils]: 80: Hoare triple {37510#(and (or (<= main_n 53) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37510#(and (or (<= main_n 53) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,898 INFO L273 TraceCheckUtils]: 81: Hoare triple {37510#(and (or (<= main_n 53) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37511#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 164) (<= main_n 53)))} is VALID [2019-02-27 13:07:26,899 INFO L273 TraceCheckUtils]: 82: Hoare triple {37511#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 164) (<= main_n 53)))} assume i <= n * 4; {37511#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 164) (<= main_n 53)))} is VALID [2019-02-27 13:07:26,900 INFO L273 TraceCheckUtils]: 83: Hoare triple {37511#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 164) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37512#(and (or (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 168)))} is VALID [2019-02-27 13:07:26,900 INFO L273 TraceCheckUtils]: 84: Hoare triple {37512#(and (or (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 168)))} assume i <= n * 4; {37512#(and (or (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 168)))} is VALID [2019-02-27 13:07:26,901 INFO L273 TraceCheckUtils]: 85: Hoare triple {37512#(and (or (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 168)))} assume a[i] != 23;i := i + 4; {37513#(and (or (<= main_n 53) (<= main_i 172)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,902 INFO L273 TraceCheckUtils]: 86: Hoare triple {37513#(and (or (<= main_n 53) (<= main_i 172)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37513#(and (or (<= main_n 53) (<= main_i 172)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,903 INFO L273 TraceCheckUtils]: 87: Hoare triple {37513#(and (or (<= main_n 53) (<= main_i 172)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37514#(and (or (<= main_i 176) (<= main_n 53)) (or (< 53 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:07:26,904 INFO L273 TraceCheckUtils]: 88: Hoare triple {37514#(and (or (<= main_i 176) (<= main_n 53)) (or (< 53 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {37514#(and (or (<= main_i 176) (<= main_n 53)) (or (< 53 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2019-02-27 13:07:26,905 INFO L273 TraceCheckUtils]: 89: Hoare triple {37514#(and (or (<= main_i 176) (<= main_n 53)) (or (< 53 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {37515#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 180)))} is VALID [2019-02-27 13:07:26,906 INFO L273 TraceCheckUtils]: 90: Hoare triple {37515#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 180)))} assume i <= n * 4; {37515#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 180)))} is VALID [2019-02-27 13:07:26,907 INFO L273 TraceCheckUtils]: 91: Hoare triple {37515#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 180)))} assume a[i] != 23;i := i + 4; {37516#(and (or (<= main_i 184) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,908 INFO L273 TraceCheckUtils]: 92: Hoare triple {37516#(and (or (<= main_i 184) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 53 main_n)))} assume i <= n * 4; {37516#(and (or (<= main_i 184) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,909 INFO L273 TraceCheckUtils]: 93: Hoare triple {37516#(and (or (<= main_i 184) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37517#(and (or (<= main_i 188) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i)) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,910 INFO L273 TraceCheckUtils]: 94: Hoare triple {37517#(and (or (<= main_i 188) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i)) (< 53 main_n)))} assume i <= n * 4; {37517#(and (or (<= main_i 188) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i)) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,911 INFO L273 TraceCheckUtils]: 95: Hoare triple {37517#(and (or (<= main_i 188) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i)) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37518#(and (or (<= main_i 192) (<= main_n 53)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,911 INFO L273 TraceCheckUtils]: 96: Hoare triple {37518#(and (or (<= main_i 192) (<= main_n 53)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37518#(and (or (<= main_i 192) (<= main_n 53)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,912 INFO L273 TraceCheckUtils]: 97: Hoare triple {37518#(and (or (<= main_i 192) (<= main_n 53)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37519#(and (or (<= main_n 53) (<= main_i 196)) (or (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,913 INFO L273 TraceCheckUtils]: 98: Hoare triple {37519#(and (or (<= main_n 53) (<= main_i 196)) (or (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37519#(and (or (<= main_n 53) (<= main_i 196)) (or (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,914 INFO L273 TraceCheckUtils]: 99: Hoare triple {37519#(and (or (<= main_n 53) (<= main_i 196)) (or (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37520#(and (or (<= main_n 53) (<= main_i 200)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,915 INFO L273 TraceCheckUtils]: 100: Hoare triple {37520#(and (or (<= main_n 53) (<= main_i 200)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 53 main_n)))} assume i <= n * 4; {37520#(and (or (<= main_n 53) (<= main_i 200)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,916 INFO L273 TraceCheckUtils]: 101: Hoare triple {37520#(and (or (<= main_n 53) (<= main_i 200)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37521#(and (or (and (<= 204 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 204)))} is VALID [2019-02-27 13:07:26,917 INFO L273 TraceCheckUtils]: 102: Hoare triple {37521#(and (or (and (<= 204 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 204)))} assume i <= n * 4; {37521#(and (or (and (<= 204 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 204)))} is VALID [2019-02-27 13:07:26,918 INFO L273 TraceCheckUtils]: 103: Hoare triple {37521#(and (or (and (<= 204 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 204)))} assume a[i] != 23;i := i + 4; {37522#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 208 main_i)) (< 53 main_n)) (or (<= main_i 208) (<= main_n 53)))} is VALID [2019-02-27 13:07:26,918 INFO L273 TraceCheckUtils]: 104: Hoare triple {37522#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 208 main_i)) (< 53 main_n)) (or (<= main_i 208) (<= main_n 53)))} assume i <= n * 4; {37522#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 208 main_i)) (< 53 main_n)) (or (<= main_i 208) (<= main_n 53)))} is VALID [2019-02-27 13:07:26,920 INFO L273 TraceCheckUtils]: 105: Hoare triple {37522#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 208 main_i)) (< 53 main_n)) (or (<= main_i 208) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37523#(and (or (<= main_i 212) (<= main_n 53)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 53 main_n)))} is VALID [2019-02-27 13:07:26,921 INFO L273 TraceCheckUtils]: 106: Hoare triple {37523#(and (or (<= main_i 212) (<= main_n 53)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 53 main_n)))} assume i <= n * 4; {37524#(and (<= main_i 212) (or (< 53 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} is VALID [2019-02-27 13:07:26,922 INFO L273 TraceCheckUtils]: 107: Hoare triple {37524#(and (<= main_i 212) (or (< 53 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} assume a[i] != 23;i := i + 4; {37525#(and (<= main_i 216) (<= 54 main_n))} is VALID [2019-02-27 13:07:26,922 INFO L273 TraceCheckUtils]: 108: Hoare triple {37525#(and (<= main_i 216) (<= 54 main_n))} assume !(i <= n * 4); {37469#false} is VALID [2019-02-27 13:07:26,974 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 2862 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:07:26,974 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 13:07:26,974 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-27 13:07:26,974 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-27 13:07:26,974 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-27 13:07:26,974 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-27 13:07:26,974 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-27 13:07:26,983 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-27 13:07:26,984 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-27 13:07:27,087 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 54 check-sat command(s) [2019-02-27 13:07:27,087 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-27 13:07:27,089 WARN L254 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 113 conjunts are in the unsatisfiable core [2019-02-27 13:07:27,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-27 13:07:27,104 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-27 13:07:27,123 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-27 13:07:27,128 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 13:07:27,135 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 13:07:27,135 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-27 13:07:27,137 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 13:07:27,137 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_57]. (and (= main_a (store v_main_a_57 (* 4 main_n) 23)) (= main_i 0)) [2019-02-27 13:07:27,137 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-27 13:07:31,891 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-27 13:07:31,904 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-27 13:07:31,908 INFO L301 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-27 13:07:31,908 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-27 13:07:31,911 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-27 13:07:31,911 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 216) (not (= (select main_a 212) 23)) (= 23 (select main_a .cse0)) (<= 212 .cse0))) [2019-02-27 13:07:31,911 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 216) (not (= 212 .cse0)) (<= 212 .cse0))) [2019-02-27 13:07:31,977 INFO L273 TraceCheckUtils]: 0: Hoare triple {37468#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {37529#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:31,978 INFO L273 TraceCheckUtils]: 1: Hoare triple {37529#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37533#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 13:07:31,978 INFO L273 TraceCheckUtils]: 2: Hoare triple {37533#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {37533#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-27 13:07:31,978 INFO L273 TraceCheckUtils]: 3: Hoare triple {37533#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {37540#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:31,979 INFO L273 TraceCheckUtils]: 4: Hoare triple {37540#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37540#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:31,979 INFO L273 TraceCheckUtils]: 5: Hoare triple {37540#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37547#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 13:07:31,980 INFO L273 TraceCheckUtils]: 6: Hoare triple {37547#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {37547#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-27 13:07:31,981 INFO L273 TraceCheckUtils]: 7: Hoare triple {37547#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {37554#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:31,981 INFO L273 TraceCheckUtils]: 8: Hoare triple {37554#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37554#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:31,982 INFO L273 TraceCheckUtils]: 9: Hoare triple {37554#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37561#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:31,983 INFO L273 TraceCheckUtils]: 10: Hoare triple {37561#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37561#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:31,983 INFO L273 TraceCheckUtils]: 11: Hoare triple {37561#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37568#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:31,984 INFO L273 TraceCheckUtils]: 12: Hoare triple {37568#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37568#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:31,985 INFO L273 TraceCheckUtils]: 13: Hoare triple {37568#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37575#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:31,985 INFO L273 TraceCheckUtils]: 14: Hoare triple {37575#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37575#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:31,986 INFO L273 TraceCheckUtils]: 15: Hoare triple {37575#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37582#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:31,987 INFO L273 TraceCheckUtils]: 16: Hoare triple {37582#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37582#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:31,988 INFO L273 TraceCheckUtils]: 17: Hoare triple {37582#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37589#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:31,988 INFO L273 TraceCheckUtils]: 18: Hoare triple {37589#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37589#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:31,989 INFO L273 TraceCheckUtils]: 19: Hoare triple {37589#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37596#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:31,990 INFO L273 TraceCheckUtils]: 20: Hoare triple {37596#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37596#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:31,991 INFO L273 TraceCheckUtils]: 21: Hoare triple {37596#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37603#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:31,991 INFO L273 TraceCheckUtils]: 22: Hoare triple {37603#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37603#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:31,992 INFO L273 TraceCheckUtils]: 23: Hoare triple {37603#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37610#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:31,993 INFO L273 TraceCheckUtils]: 24: Hoare triple {37610#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37610#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:31,993 INFO L273 TraceCheckUtils]: 25: Hoare triple {37610#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37617#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:31,994 INFO L273 TraceCheckUtils]: 26: Hoare triple {37617#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37617#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:31,995 INFO L273 TraceCheckUtils]: 27: Hoare triple {37617#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37624#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:31,995 INFO L273 TraceCheckUtils]: 28: Hoare triple {37624#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37624#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:31,996 INFO L273 TraceCheckUtils]: 29: Hoare triple {37624#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37631#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:31,997 INFO L273 TraceCheckUtils]: 30: Hoare triple {37631#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37631#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:31,997 INFO L273 TraceCheckUtils]: 31: Hoare triple {37631#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37638#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:31,998 INFO L273 TraceCheckUtils]: 32: Hoare triple {37638#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37638#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:31,999 INFO L273 TraceCheckUtils]: 33: Hoare triple {37638#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37645#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,000 INFO L273 TraceCheckUtils]: 34: Hoare triple {37645#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37645#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,000 INFO L273 TraceCheckUtils]: 35: Hoare triple {37645#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37652#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,001 INFO L273 TraceCheckUtils]: 36: Hoare triple {37652#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37652#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,002 INFO L273 TraceCheckUtils]: 37: Hoare triple {37652#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37659#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,002 INFO L273 TraceCheckUtils]: 38: Hoare triple {37659#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37659#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,003 INFO L273 TraceCheckUtils]: 39: Hoare triple {37659#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37666#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 13:07:32,004 INFO L273 TraceCheckUtils]: 40: Hoare triple {37666#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {37666#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2019-02-27 13:07:32,004 INFO L273 TraceCheckUtils]: 41: Hoare triple {37666#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {37673#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,005 INFO L273 TraceCheckUtils]: 42: Hoare triple {37673#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37673#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,006 INFO L273 TraceCheckUtils]: 43: Hoare triple {37673#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37680#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,007 INFO L273 TraceCheckUtils]: 44: Hoare triple {37680#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37680#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,007 INFO L273 TraceCheckUtils]: 45: Hoare triple {37680#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37687#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,008 INFO L273 TraceCheckUtils]: 46: Hoare triple {37687#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37687#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,009 INFO L273 TraceCheckUtils]: 47: Hoare triple {37687#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37694#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,010 INFO L273 TraceCheckUtils]: 48: Hoare triple {37694#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37694#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,010 INFO L273 TraceCheckUtils]: 49: Hoare triple {37694#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37701#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,011 INFO L273 TraceCheckUtils]: 50: Hoare triple {37701#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37701#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,012 INFO L273 TraceCheckUtils]: 51: Hoare triple {37701#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37708#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,012 INFO L273 TraceCheckUtils]: 52: Hoare triple {37708#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37708#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,013 INFO L273 TraceCheckUtils]: 53: Hoare triple {37708#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37715#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,014 INFO L273 TraceCheckUtils]: 54: Hoare triple {37715#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37715#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,015 INFO L273 TraceCheckUtils]: 55: Hoare triple {37715#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37722#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,015 INFO L273 TraceCheckUtils]: 56: Hoare triple {37722#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37722#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,016 INFO L273 TraceCheckUtils]: 57: Hoare triple {37722#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37729#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,017 INFO L273 TraceCheckUtils]: 58: Hoare triple {37729#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37729#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,017 INFO L273 TraceCheckUtils]: 59: Hoare triple {37729#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37736#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,018 INFO L273 TraceCheckUtils]: 60: Hoare triple {37736#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37736#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,019 INFO L273 TraceCheckUtils]: 61: Hoare triple {37736#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37743#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,019 INFO L273 TraceCheckUtils]: 62: Hoare triple {37743#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37743#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,020 INFO L273 TraceCheckUtils]: 63: Hoare triple {37743#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37750#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,021 INFO L273 TraceCheckUtils]: 64: Hoare triple {37750#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37750#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,022 INFO L273 TraceCheckUtils]: 65: Hoare triple {37750#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37757#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,022 INFO L273 TraceCheckUtils]: 66: Hoare triple {37757#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37757#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,023 INFO L273 TraceCheckUtils]: 67: Hoare triple {37757#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37764#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,024 INFO L273 TraceCheckUtils]: 68: Hoare triple {37764#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37764#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,025 INFO L273 TraceCheckUtils]: 69: Hoare triple {37764#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37771#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 13:07:32,025 INFO L273 TraceCheckUtils]: 70: Hoare triple {37771#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {37771#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2019-02-27 13:07:32,026 INFO L273 TraceCheckUtils]: 71: Hoare triple {37771#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {37778#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,027 INFO L273 TraceCheckUtils]: 72: Hoare triple {37778#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37778#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,028 INFO L273 TraceCheckUtils]: 73: Hoare triple {37778#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37785#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,028 INFO L273 TraceCheckUtils]: 74: Hoare triple {37785#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37785#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,029 INFO L273 TraceCheckUtils]: 75: Hoare triple {37785#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37792#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,030 INFO L273 TraceCheckUtils]: 76: Hoare triple {37792#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37792#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,031 INFO L273 TraceCheckUtils]: 77: Hoare triple {37792#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37799#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,031 INFO L273 TraceCheckUtils]: 78: Hoare triple {37799#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37799#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,032 INFO L273 TraceCheckUtils]: 79: Hoare triple {37799#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37806#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,033 INFO L273 TraceCheckUtils]: 80: Hoare triple {37806#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37806#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,033 INFO L273 TraceCheckUtils]: 81: Hoare triple {37806#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37813#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-02-27 13:07:32,034 INFO L273 TraceCheckUtils]: 82: Hoare triple {37813#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {37813#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2019-02-27 13:07:32,035 INFO L273 TraceCheckUtils]: 83: Hoare triple {37813#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {37820#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,035 INFO L273 TraceCheckUtils]: 84: Hoare triple {37820#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37820#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,036 INFO L273 TraceCheckUtils]: 85: Hoare triple {37820#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37827#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,037 INFO L273 TraceCheckUtils]: 86: Hoare triple {37827#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37827#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,037 INFO L273 TraceCheckUtils]: 87: Hoare triple {37827#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37834#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,038 INFO L273 TraceCheckUtils]: 88: Hoare triple {37834#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37834#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,039 INFO L273 TraceCheckUtils]: 89: Hoare triple {37834#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37841#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,039 INFO L273 TraceCheckUtils]: 90: Hoare triple {37841#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37841#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,040 INFO L273 TraceCheckUtils]: 91: Hoare triple {37841#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37848#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,041 INFO L273 TraceCheckUtils]: 92: Hoare triple {37848#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37848#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,042 INFO L273 TraceCheckUtils]: 93: Hoare triple {37848#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37855#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,042 INFO L273 TraceCheckUtils]: 94: Hoare triple {37855#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37855#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,043 INFO L273 TraceCheckUtils]: 95: Hoare triple {37855#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37862#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,044 INFO L273 TraceCheckUtils]: 96: Hoare triple {37862#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37862#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,044 INFO L273 TraceCheckUtils]: 97: Hoare triple {37862#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37869#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,045 INFO L273 TraceCheckUtils]: 98: Hoare triple {37869#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37869#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,046 INFO L273 TraceCheckUtils]: 99: Hoare triple {37869#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37876#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,047 INFO L273 TraceCheckUtils]: 100: Hoare triple {37876#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37876#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,047 INFO L273 TraceCheckUtils]: 101: Hoare triple {37876#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37883#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,048 INFO L273 TraceCheckUtils]: 102: Hoare triple {37883#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37883#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,049 INFO L273 TraceCheckUtils]: 103: Hoare triple {37883#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37890#(and (= main_i 208) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,049 INFO L273 TraceCheckUtils]: 104: Hoare triple {37890#(and (= main_i 208) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37890#(and (= main_i 208) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,050 INFO L273 TraceCheckUtils]: 105: Hoare triple {37890#(and (= main_i 208) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37897#(and (= main_i 212) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,051 INFO L273 TraceCheckUtils]: 106: Hoare triple {37897#(and (= main_i 212) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37901#(and (= main_i 212) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-27 13:07:32,052 INFO L273 TraceCheckUtils]: 107: Hoare triple {37901#(and (= main_i 212) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37525#(and (<= main_i 216) (<= 54 main_n))} is VALID [2019-02-27 13:07:32,053 INFO L273 TraceCheckUtils]: 108: Hoare triple {37525#(and (<= main_i 216) (<= 54 main_n))} assume !(i <= n * 4); {37469#false} is VALID [2019-02-27 13:07:32,079 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 2862 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:07:32,080 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-27 13:07:40,288 INFO L273 TraceCheckUtils]: 108: Hoare triple {37908#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {37469#false} is VALID [2019-02-27 13:07:40,289 INFO L273 TraceCheckUtils]: 107: Hoare triple {37912#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {37908#(<= main_i (* 4 main_n))} is VALID [2019-02-27 13:07:40,290 INFO L273 TraceCheckUtils]: 106: Hoare triple {37916#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {37912#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:07:40,290 INFO L273 TraceCheckUtils]: 105: Hoare triple {37920#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {37916#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2019-02-27 13:07:40,291 INFO L273 TraceCheckUtils]: 104: Hoare triple {37920#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {37920#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:07:40,291 INFO L273 TraceCheckUtils]: 103: Hoare triple {37927#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {37920#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2019-02-27 13:07:40,292 INFO L273 TraceCheckUtils]: 102: Hoare triple {37927#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {37927#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:07:40,292 INFO L273 TraceCheckUtils]: 101: Hoare triple {37934#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {37927#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2019-02-27 13:07:40,293 INFO L273 TraceCheckUtils]: 100: Hoare triple {37934#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {37934#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:07:40,294 INFO L273 TraceCheckUtils]: 99: Hoare triple {37941#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {37934#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2019-02-27 13:07:40,294 INFO L273 TraceCheckUtils]: 98: Hoare triple {37941#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {37941#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:07:40,296 INFO L273 TraceCheckUtils]: 97: Hoare triple {37948#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {37941#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2019-02-27 13:07:40,296 INFO L273 TraceCheckUtils]: 96: Hoare triple {37948#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {37948#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:07:40,297 INFO L273 TraceCheckUtils]: 95: Hoare triple {37955#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {37948#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2019-02-27 13:07:40,298 INFO L273 TraceCheckUtils]: 94: Hoare triple {37955#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {37955#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:07:40,299 INFO L273 TraceCheckUtils]: 93: Hoare triple {37962#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {37955#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2019-02-27 13:07:40,300 INFO L273 TraceCheckUtils]: 92: Hoare triple {37962#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {37962#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:07:40,301 INFO L273 TraceCheckUtils]: 91: Hoare triple {37969#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {37962#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2019-02-27 13:07:40,301 INFO L273 TraceCheckUtils]: 90: Hoare triple {37969#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {37969#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:07:40,303 INFO L273 TraceCheckUtils]: 89: Hoare triple {37976#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {37969#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2019-02-27 13:07:40,303 INFO L273 TraceCheckUtils]: 88: Hoare triple {37976#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {37976#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:07:40,304 INFO L273 TraceCheckUtils]: 87: Hoare triple {37983#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {37976#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2019-02-27 13:07:40,305 INFO L273 TraceCheckUtils]: 86: Hoare triple {37983#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {37983#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:07:40,306 INFO L273 TraceCheckUtils]: 85: Hoare triple {37990#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {37983#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2019-02-27 13:07:40,307 INFO L273 TraceCheckUtils]: 84: Hoare triple {37990#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {37990#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:07:40,308 INFO L273 TraceCheckUtils]: 83: Hoare triple {37997#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {37990#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2019-02-27 13:07:40,308 INFO L273 TraceCheckUtils]: 82: Hoare triple {37997#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {37997#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:07:40,310 INFO L273 TraceCheckUtils]: 81: Hoare triple {38004#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {37997#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2019-02-27 13:07:40,310 INFO L273 TraceCheckUtils]: 80: Hoare triple {38004#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {38004#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:07:40,311 INFO L273 TraceCheckUtils]: 79: Hoare triple {38011#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {38004#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2019-02-27 13:07:40,312 INFO L273 TraceCheckUtils]: 78: Hoare triple {38011#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {38011#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:07:40,313 INFO L273 TraceCheckUtils]: 77: Hoare triple {38018#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {38011#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2019-02-27 13:07:40,314 INFO L273 TraceCheckUtils]: 76: Hoare triple {38018#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {38018#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:07:40,315 INFO L273 TraceCheckUtils]: 75: Hoare triple {38025#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {38018#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2019-02-27 13:07:40,315 INFO L273 TraceCheckUtils]: 74: Hoare triple {38025#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {38025#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:07:40,316 INFO L273 TraceCheckUtils]: 73: Hoare triple {38032#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {38025#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2019-02-27 13:07:40,317 INFO L273 TraceCheckUtils]: 72: Hoare triple {38032#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {38032#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:07:40,318 INFO L273 TraceCheckUtils]: 71: Hoare triple {38039#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {38032#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2019-02-27 13:07:40,319 INFO L273 TraceCheckUtils]: 70: Hoare triple {38039#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {38039#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:07:40,320 INFO L273 TraceCheckUtils]: 69: Hoare triple {38046#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {38039#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2019-02-27 13:07:40,320 INFO L273 TraceCheckUtils]: 68: Hoare triple {38046#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {38046#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:07:40,321 INFO L273 TraceCheckUtils]: 67: Hoare triple {38053#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {38046#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2019-02-27 13:07:40,322 INFO L273 TraceCheckUtils]: 66: Hoare triple {38053#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {38053#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:07:40,323 INFO L273 TraceCheckUtils]: 65: Hoare triple {38060#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {38053#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2019-02-27 13:07:40,324 INFO L273 TraceCheckUtils]: 64: Hoare triple {38060#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {38060#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:07:40,325 INFO L273 TraceCheckUtils]: 63: Hoare triple {38067#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {38060#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2019-02-27 13:07:40,325 INFO L273 TraceCheckUtils]: 62: Hoare triple {38067#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {38067#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:07:40,326 INFO L273 TraceCheckUtils]: 61: Hoare triple {38074#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {38067#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2019-02-27 13:07:40,327 INFO L273 TraceCheckUtils]: 60: Hoare triple {38074#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {38074#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:07:40,328 INFO L273 TraceCheckUtils]: 59: Hoare triple {38081#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {38074#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2019-02-27 13:07:40,329 INFO L273 TraceCheckUtils]: 58: Hoare triple {38081#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {38081#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:07:40,330 INFO L273 TraceCheckUtils]: 57: Hoare triple {38088#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {38081#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2019-02-27 13:07:40,330 INFO L273 TraceCheckUtils]: 56: Hoare triple {38088#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {38088#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:07:40,332 INFO L273 TraceCheckUtils]: 55: Hoare triple {38095#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {38088#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2019-02-27 13:07:40,332 INFO L273 TraceCheckUtils]: 54: Hoare triple {38095#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {38095#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:07:40,333 INFO L273 TraceCheckUtils]: 53: Hoare triple {38102#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {38095#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2019-02-27 13:07:40,334 INFO L273 TraceCheckUtils]: 52: Hoare triple {38102#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {38102#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:07:40,335 INFO L273 TraceCheckUtils]: 51: Hoare triple {38109#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {38102#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2019-02-27 13:07:40,335 INFO L273 TraceCheckUtils]: 50: Hoare triple {38109#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {38109#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:07:40,337 INFO L273 TraceCheckUtils]: 49: Hoare triple {38116#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {38109#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2019-02-27 13:07:40,337 INFO L273 TraceCheckUtils]: 48: Hoare triple {38116#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {38116#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:07:40,338 INFO L273 TraceCheckUtils]: 47: Hoare triple {38123#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {38116#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2019-02-27 13:07:40,339 INFO L273 TraceCheckUtils]: 46: Hoare triple {38123#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {38123#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:07:40,340 INFO L273 TraceCheckUtils]: 45: Hoare triple {38130#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {38123#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2019-02-27 13:07:40,340 INFO L273 TraceCheckUtils]: 44: Hoare triple {38130#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {38130#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:07:40,342 INFO L273 TraceCheckUtils]: 43: Hoare triple {38137#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {38130#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2019-02-27 13:07:40,342 INFO L273 TraceCheckUtils]: 42: Hoare triple {38137#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {38137#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:07:40,343 INFO L273 TraceCheckUtils]: 41: Hoare triple {38144#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {38137#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2019-02-27 13:07:40,344 INFO L273 TraceCheckUtils]: 40: Hoare triple {38144#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {38144#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:07:40,345 INFO L273 TraceCheckUtils]: 39: Hoare triple {38151#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {38144#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2019-02-27 13:07:40,346 INFO L273 TraceCheckUtils]: 38: Hoare triple {38151#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {38151#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:07:40,347 INFO L273 TraceCheckUtils]: 37: Hoare triple {38158#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {38151#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2019-02-27 13:07:40,347 INFO L273 TraceCheckUtils]: 36: Hoare triple {38158#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {38158#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:07:40,348 INFO L273 TraceCheckUtils]: 35: Hoare triple {38165#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {38158#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2019-02-27 13:07:40,349 INFO L273 TraceCheckUtils]: 34: Hoare triple {38165#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {38165#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:07:40,350 INFO L273 TraceCheckUtils]: 33: Hoare triple {38172#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {38165#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2019-02-27 13:07:40,351 INFO L273 TraceCheckUtils]: 32: Hoare triple {38172#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {38172#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-02-27 13:07:40,352 INFO L273 TraceCheckUtils]: 31: Hoare triple {38179#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {38172#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2019-02-27 13:07:40,352 INFO L273 TraceCheckUtils]: 30: Hoare triple {38179#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {38179#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-02-27 13:07:40,353 INFO L273 TraceCheckUtils]: 29: Hoare triple {38186#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {38179#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2019-02-27 13:07:40,354 INFO L273 TraceCheckUtils]: 28: Hoare triple {38186#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {38186#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-02-27 13:07:40,355 INFO L273 TraceCheckUtils]: 27: Hoare triple {38193#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {38186#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2019-02-27 13:07:40,356 INFO L273 TraceCheckUtils]: 26: Hoare triple {38193#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {38193#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-02-27 13:07:40,357 INFO L273 TraceCheckUtils]: 25: Hoare triple {38200#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {38193#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2019-02-27 13:07:40,357 INFO L273 TraceCheckUtils]: 24: Hoare triple {38200#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {38200#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-02-27 13:07:40,358 INFO L273 TraceCheckUtils]: 23: Hoare triple {38207#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {38200#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2019-02-27 13:07:40,359 INFO L273 TraceCheckUtils]: 22: Hoare triple {38207#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume i <= n * 4; {38207#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-02-27 13:07:40,360 INFO L273 TraceCheckUtils]: 21: Hoare triple {38214#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {38207#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2019-02-27 13:07:40,361 INFO L273 TraceCheckUtils]: 20: Hoare triple {38214#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume i <= n * 4; {38214#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-02-27 13:07:40,362 INFO L273 TraceCheckUtils]: 19: Hoare triple {38221#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume a[i] != 23;i := i + 4; {38214#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2019-02-27 13:07:40,362 INFO L273 TraceCheckUtils]: 18: Hoare triple {38221#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume i <= n * 4; {38221#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-02-27 13:07:40,363 INFO L273 TraceCheckUtils]: 17: Hoare triple {38228#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume a[i] != 23;i := i + 4; {38221#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2019-02-27 13:07:40,364 INFO L273 TraceCheckUtils]: 16: Hoare triple {38228#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume i <= n * 4; {38228#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-02-27 13:07:40,365 INFO L273 TraceCheckUtils]: 15: Hoare triple {38235#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume a[i] != 23;i := i + 4; {38228#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2019-02-27 13:07:40,366 INFO L273 TraceCheckUtils]: 14: Hoare triple {38235#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume i <= n * 4; {38235#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2019-02-27 13:07:40,367 INFO L273 TraceCheckUtils]: 13: Hoare triple {38242#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume a[i] != 23;i := i + 4; {38235#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2019-02-27 13:07:40,367 INFO L273 TraceCheckUtils]: 12: Hoare triple {38242#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume i <= n * 4; {38242#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2019-02-27 13:07:40,368 INFO L273 TraceCheckUtils]: 11: Hoare triple {38249#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} assume a[i] != 23;i := i + 4; {38242#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2019-02-27 13:07:40,369 INFO L273 TraceCheckUtils]: 10: Hoare triple {38249#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} assume i <= n * 4; {38249#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} is VALID [2019-02-27 13:07:40,370 INFO L273 TraceCheckUtils]: 9: Hoare triple {38256#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} assume a[i] != 23;i := i + 4; {38249#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} is VALID [2019-02-27 13:07:40,371 INFO L273 TraceCheckUtils]: 8: Hoare triple {38256#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} assume i <= n * 4; {38256#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} is VALID [2019-02-27 13:07:40,372 INFO L273 TraceCheckUtils]: 7: Hoare triple {38263#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} assume a[i] != 23;i := i + 4; {38256#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} is VALID [2019-02-27 13:07:40,372 INFO L273 TraceCheckUtils]: 6: Hoare triple {38263#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} assume i <= n * 4; {38263#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} is VALID [2019-02-27 13:07:40,373 INFO L273 TraceCheckUtils]: 5: Hoare triple {38270#(or (< (+ main_i 207) (* 4 main_n)) (< (* 4 main_n) (+ main_i 204)) (= (select main_a (+ main_i 204)) 23))} assume a[i] != 23;i := i + 4; {38263#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} is VALID [2019-02-27 13:07:40,374 INFO L273 TraceCheckUtils]: 4: Hoare triple {38270#(or (< (+ main_i 207) (* 4 main_n)) (< (* 4 main_n) (+ main_i 204)) (= (select main_a (+ main_i 204)) 23))} assume i <= n * 4; {38270#(or (< (+ main_i 207) (* 4 main_n)) (< (* 4 main_n) (+ main_i 204)) (= (select main_a (+ main_i 204)) 23))} is VALID [2019-02-27 13:07:40,375 INFO L273 TraceCheckUtils]: 3: Hoare triple {38277#(or (= (select main_a (+ main_i 208)) 23) (< (+ main_i 211) (* 4 main_n)) (< (* 4 main_n) (+ main_i 208)))} assume a[i] != 23;i := i + 4; {38270#(or (< (+ main_i 207) (* 4 main_n)) (< (* 4 main_n) (+ main_i 204)) (= (select main_a (+ main_i 204)) 23))} is VALID [2019-02-27 13:07:40,376 INFO L273 TraceCheckUtils]: 2: Hoare triple {38277#(or (= (select main_a (+ main_i 208)) 23) (< (+ main_i 211) (* 4 main_n)) (< (* 4 main_n) (+ main_i 208)))} assume i <= n * 4; {38277#(or (= (select main_a (+ main_i 208)) 23) (< (+ main_i 211) (* 4 main_n)) (< (* 4 main_n) (+ main_i 208)))} is VALID [2019-02-27 13:07:40,377 INFO L273 TraceCheckUtils]: 1: Hoare triple {38284#(or (< (* 4 main_n) (+ main_i 212)) (= 23 (select main_a (+ main_i 212))) (< (+ main_i 215) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {38277#(or (= (select main_a (+ main_i 208)) 23) (< (+ main_i 211) (* 4 main_n)) (< (* 4 main_n) (+ main_i 208)))} is VALID [2019-02-27 13:07:40,378 INFO L273 TraceCheckUtils]: 0: Hoare triple {37468#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {38284#(or (< (* 4 main_n) (+ main_i 212)) (= 23 (select main_a (+ main_i 212))) (< (+ main_i 215) (* 4 main_n)))} is VALID [2019-02-27 13:07:40,432 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 2862 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-27 13:07:40,450 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-27 13:07:40,451 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56, 56] total 167 [2019-02-27 13:07:40,451 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-27 13:07:40,451 INFO L78 Accepts]: Start accepts. Automaton has 113 states. Word has length 109 [2019-02-27 13:07:40,451 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-27 13:07:40,451 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 113 states. [2019-02-27 13:07:40,772 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 217 edges. 217 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-27 13:07:40,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 113 states [2019-02-27 13:07:40,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2019-02-27 13:07:40,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3424, Invalid=24968, Unknown=0, NotChecked=0, Total=28392 [2019-02-27 13:07:40,774 INFO L87 Difference]: Start difference. First operand 110 states and 110 transitions. Second operand 113 states.