java -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/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/SkatingStrawberry.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b7bd044-m [2019-01-18 17:28:42,403 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-18 17:28:42,407 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-18 17:28:42,424 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-18 17:28:42,425 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-18 17:28:42,426 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-18 17:28:42,428 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-18 17:28:42,430 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-18 17:28:42,432 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-18 17:28:42,433 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-18 17:28:42,434 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2019-01-18 17:28:42,480 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 [2019-01-18 17:28:42,505 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-18 17:28:42,505 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-18 17:28:42,509 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-01-18 17:28:42,509 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-01-18 17:28:42,509 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-01-18 17:28:42,510 INFO L133 SettingsManager]: * User list type=DISABLED [2019-01-18 17:28:42,510 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-01-18 17:28:42,510 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-01-18 17:28:42,510 INFO L133 SettingsManager]: * Explicit value domain=true [2019-01-18 17:28:42,510 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-01-18 17:28:42,511 INFO L133 SettingsManager]: * Octagon Domain=false [2019-01-18 17:28:42,511 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2019-01-18 17:28:42,511 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-01-18 17:28:42,511 INFO L133 SettingsManager]: * Interval Domain=false [2019-01-18 17:28:42,513 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-18 17:28:42,513 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-18 17:28:42,514 INFO L133 SettingsManager]: * Use SBE=true [2019-01-18 17:28:42,514 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-18 17:28:42,514 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-18 17:28:42,514 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-18 17:28:42,514 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-18 17:28:42,515 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-18 17:28:42,515 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-18 17:28:42,515 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-18 17:28:42,515 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-18 17:28:42,515 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-18 17:28:42,515 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-18 17:28:42,516 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-18 17:28:42,516 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-18 17:28:42,516 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-18 17:28:42,516 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-18 17:28:42,516 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-18 17:28:42,516 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-18 17:28:42,518 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-18 17:28:42,519 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-18 17:28:42,519 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-01-18 17:28:42,519 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-18 17:28:42,519 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-18 17:28:42,519 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-01-18 17:28:42,519 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-01-18 17:28:42,570 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-18 17:28:42,583 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-18 17:28:42,586 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-18 17:28:42,588 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-01-18 17:28:42,588 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-01-18 17:28:42,589 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/SkatingStrawberry.bpl [2019-01-18 17:28:42,589 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/SkatingStrawberry.bpl' [2019-01-18 17:28:42,626 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-18 17:28:42,628 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-01-18 17:28:42,628 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-18 17:28:42,629 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-18 17:28:42,629 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-18 17:28:42,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:28:42" (1/1) ... [2019-01-18 17:28:42,655 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:28:42" (1/1) ... [2019-01-18 17:28:42,662 WARN L165 Inliner]: Program contained no entry procedure! [2019-01-18 17:28:42,662 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-01-18 17:28:42,662 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-01-18 17:28:42,665 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-18 17:28:42,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-18 17:28:42,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-18 17:28:42,667 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-18 17:28:42,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:28:42" (1/1) ... [2019-01-18 17:28:42,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:28:42" (1/1) ... [2019-01-18 17:28:42,680 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:28:42" (1/1) ... [2019-01-18 17:28:42,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:28:42" (1/1) ... [2019-01-18 17:28:42,688 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:28:42" (1/1) ... [2019-01-18 17:28:42,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:28:42" (1/1) ... [2019-01-18 17:28:42,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:28:42" (1/1) ... [2019-01-18 17:28:42,696 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-18 17:28:42,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-18 17:28:42,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-18 17:28:42,696 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-18 17:28:42,697 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:28:42" (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 [2019-01-18 17:28:42,765 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-01-18 17:28:42,765 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-01-18 17:28:42,765 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-01-18 17:28:42,952 INFO L278 CfgBuilder]: Using library mode [2019-01-18 17:28:42,953 INFO L286 CfgBuilder]: Removed 1 assue(true) statements. [2019-01-18 17:28:42,954 INFO L202 PluginConnector]: Adding new model SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 05:28:42 BoogieIcfgContainer [2019-01-18 17:28:42,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-18 17:28:42,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-18 17:28:42,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-18 17:28:42,959 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-18 17:28:42,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:28:42" (1/2) ... [2019-01-18 17:28:42,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@610dc764 and model type SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 05:28:42, skipping insertion in model container [2019-01-18 17:28:42,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 05:28:42" (2/2) ... [2019-01-18 17:28:42,963 INFO L112 eAbstractionObserver]: Analyzing ICFG SkatingStrawberry.bpl [2019-01-18 17:28:42,973 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-18 17:28:42,981 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-18 17:28:42,999 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-18 17:28:43,040 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-18 17:28:43,040 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-18 17:28:43,040 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-18 17:28:43,040 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-18 17:28:43,040 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-18 17:28:43,041 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-18 17:28:43,041 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-18 17:28:43,041 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-18 17:28:43,058 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-01-18 17:28:43,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-01-18 17:28:43,074 INFO L394 BasicCegarLoop]: Found error trace [2019-01-18 17:28:43,075 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-01-18 17:28:43,078 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-18 17:28:43,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-18 17:28:43,088 INFO L82 PathProgramCache]: Analyzing trace with hash 30048, now seen corresponding path program 1 times [2019-01-18 17:28:43,090 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-18 17:28:43,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-18 17:28:43,140 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-18 17:28:43,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-18 17:28:43,140 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-18 17:28:43,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-18 17:28:43,431 WARN L181 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 10 [2019-01-18 17:28:43,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-18 17:28:43,467 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-18 17:28:43,467 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-18 17:28:43,467 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-01-18 17:28:43,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-18 17:28:43,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-18 17:28:43,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-18 17:28:43,489 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2019-01-18 17:28:43,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-18 17:28:43,562 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2019-01-18 17:28:43,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-18 17:28:43,563 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-01-18 17:28:43,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-18 17:28:43,574 INFO L225 Difference]: With dead ends: 15 [2019-01-18 17:28:43,574 INFO L226 Difference]: Without dead ends: 5 [2019-01-18 17:28:43,578 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-18 17:28:43,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2019-01-18 17:28:43,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-01-18 17:28:43,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-01-18 17:28:43,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2019-01-18 17:28:43,613 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2019-01-18 17:28:43,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-18 17:28:43,613 INFO L480 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2019-01-18 17:28:43,613 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-18 17:28:43,614 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2019-01-18 17:28:43,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-18 17:28:43,614 INFO L394 BasicCegarLoop]: Found error trace [2019-01-18 17:28:43,614 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-18 17:28:43,615 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-18 17:28:43,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-18 17:28:43,615 INFO L82 PathProgramCache]: Analyzing trace with hash 927622, now seen corresponding path program 1 times [2019-01-18 17:28:43,616 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-18 17:28:43,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-18 17:28:43,617 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-18 17:28:43,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-18 17:28:43,617 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-18 17:28:43,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-18 17:28:43,880 WARN L181 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 18 [2019-01-18 17:28:43,899 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-18 17:28:43,900 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-18 17:28:43,900 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-18 17:28:43,901 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 5 with the following transitions: [2019-01-18 17:28:43,902 INFO L207 CegarAbsIntRunner]: [0], [4], [8], [9] [2019-01-18 17:28:43,949 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-01-18 17:28:43,950 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2019-01-18 17:28:44,008 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-01-18 17:28:44,009 INFO L272 AbstractInterpreter]: Visited 4 different actions 4 times. Never merged. Never widened. Performed 22 root evaluator evaluations with a maximum evaluation depth of 3. Performed 22 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2019-01-18 17:28:44,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-18 17:28:44,016 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-01-18 17:28:44,016 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-18 17:28:44,016 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 [2019-01-18 17:28:44,035 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-18 17:28:44,035 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-18 17:28:44,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-18 17:28:44,069 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-18 17:28:44,140 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2019-01-18 17:28:44,187 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:44,210 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:44,213 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2019-01-18 17:28:44,215 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-18 17:28:44,345 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:28:44,417 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:28:44,417 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:16 [2019-01-18 17:28:44,761 WARN L181 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2019-01-18 17:28:44,775 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:44,782 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:44,792 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:44,867 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 34 treesize of output 58 [2019-01-18 17:28:44,886 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:44,888 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:44,907 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 70 [2019-01-18 17:28:44,912 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-18 17:28:45,134 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:45,137 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:45,142 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:45,145 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:45,150 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:45,152 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:45,156 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:45,206 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 90 [2019-01-18 17:28:45,208 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-01-18 17:28:45,339 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2019-01-18 17:28:45,348 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:45,350 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:45,352 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:45,370 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 57 [2019-01-18 17:28:45,386 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:45,387 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:45,389 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 66 [2019-01-18 17:28:45,391 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-01-18 17:28:45,659 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:45,684 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:45,710 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:45,735 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:45,745 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:45,747 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:45,753 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:45,753 INFO L303 Elim1Store]: Index analysis took 131 ms [2019-01-18 17:28:45,755 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 86 [2019-01-18 17:28:45,757 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-01-18 17:28:45,814 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2019-01-18 17:28:45,900 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2019-01-18 17:28:45,900 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:42, output treesize:145 [2019-01-18 17:28:46,023 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-18 17:28:46,023 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-18 17:28:46,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-18 17:28:46,158 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-18 17:28:46,159 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2019-01-18 17:28:46,159 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-18 17:28:46,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-18 17:28:46,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-18 17:28:46,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2019-01-18 17:28:46,161 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 6 states. [2019-01-18 17:28:50,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-18 17:28:50,258 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-01-18 17:28:50,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-18 17:28:50,259 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2019-01-18 17:28:50,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-18 17:28:50,259 INFO L225 Difference]: With dead ends: 8 [2019-01-18 17:28:50,259 INFO L226 Difference]: Without dead ends: 6 [2019-01-18 17:28:50,261 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2019-01-18 17:28:50,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2019-01-18 17:28:50,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2019-01-18 17:28:50,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-01-18 17:28:50,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2019-01-18 17:28:50,264 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2019-01-18 17:28:50,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-18 17:28:50,264 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2019-01-18 17:28:50,264 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-18 17:28:50,265 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2019-01-18 17:28:50,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-18 17:28:50,265 INFO L394 BasicCegarLoop]: Found error trace [2019-01-18 17:28:50,265 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2019-01-18 17:28:50,266 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-18 17:28:50,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-18 17:28:50,266 INFO L82 PathProgramCache]: Analyzing trace with hash 28752416, now seen corresponding path program 2 times [2019-01-18 17:28:50,266 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-18 17:28:50,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-18 17:28:50,267 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-18 17:28:50,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-18 17:28:50,268 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-18 17:28:50,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-18 17:28:50,586 WARN L181 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 23 [2019-01-18 17:28:50,625 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-18 17:28:50,626 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-18 17:28:50,626 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-18 17:28:50,626 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-18 17:28:50,626 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-18 17:28:50,626 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-18 17:28:50,627 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 [2019-01-18 17:28:50,638 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-18 17:28:50,638 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-18 17:28:50,653 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-01-18 17:28:50,653 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-18 17:28:50,656 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-18 17:28:50,667 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2019-01-18 17:28:50,671 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:50,701 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:50,702 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2019-01-18 17:28:50,703 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-18 17:28:50,712 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:28:50,718 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:28:50,719 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:16 [2019-01-18 17:28:50,778 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:50,789 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:50,799 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:50,841 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 53 [2019-01-18 17:28:50,853 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:50,854 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:50,856 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:50,857 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 66 [2019-01-18 17:28:50,858 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-18 17:28:50,966 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:50,968 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:50,969 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:50,971 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 42 [2019-01-18 17:28:50,972 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-01-18 17:28:51,053 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2019-01-18 17:28:51,062 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:51,064 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:51,070 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:51,091 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 30 treesize of output 54 [2019-01-18 17:28:51,101 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:51,104 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:51,106 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:51,122 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 70 [2019-01-18 17:28:51,124 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-01-18 17:28:51,185 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:51,187 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:51,189 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:51,199 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 46 [2019-01-18 17:28:51,200 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-01-18 17:28:51,239 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2019-01-18 17:28:51,314 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2019-01-18 17:28:51,314 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:45, output treesize:157 [2019-01-18 17:28:51,643 WARN L181 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2019-01-18 17:28:51,653 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:51,655 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:51,662 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:51,671 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 72 [2019-01-18 17:28:51,699 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:51,701 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:51,703 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:51,709 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:51,726 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 100 [2019-01-18 17:28:51,727 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-18 17:28:51,802 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:28:51,810 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:51,812 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:51,814 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:51,816 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2019-01-18 17:28:51,824 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:51,827 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:51,830 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:51,832 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:51,834 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 93 [2019-01-18 17:28:51,834 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-18 17:28:51,873 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:28:52,265 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:52,267 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:52,270 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:52,271 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:52,273 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:52,275 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:52,284 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:52,290 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 122 [2019-01-18 17:28:52,300 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:52,316 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:52,319 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:52,321 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:52,341 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 167 [2019-01-18 17:28:52,343 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-01-18 17:28:52,406 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:28:52,411 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:52,413 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:52,418 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:52,425 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:52,427 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:52,428 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:52,429 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:52,432 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 125 [2019-01-18 17:28:52,446 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:52,448 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:52,468 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:52,491 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:28:52,493 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 164 [2019-01-18 17:28:52,494 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-01-18 17:28:52,710 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:28:52,885 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 5 dim-0 vars, and 3 xjuncts. [2019-01-18 17:28:52,885 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:125, output treesize:178 [2019-01-18 17:28:53,244 WARN L181 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 53 [2019-01-18 17:28:53,339 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-18 17:28:53,340 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-18 17:28:53,445 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-01-18 17:28:53,463 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-18 17:28:53,464 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 3] total 9 [2019-01-18 17:28:53,464 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-18 17:28:53,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-18 17:28:53,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-18 17:28:53,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2019-01-18 17:28:53,465 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 8 states. [2019-01-18 17:28:58,293 WARN L181 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2019-01-18 17:29:02,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-18 17:29:02,528 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2019-01-18 17:29:02,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-18 17:29:02,529 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 5 [2019-01-18 17:29:02,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-18 17:29:02,529 INFO L225 Difference]: With dead ends: 10 [2019-01-18 17:29:02,529 INFO L226 Difference]: Without dead ends: 8 [2019-01-18 17:29:02,530 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2019-01-18 17:29:02,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-01-18 17:29:02,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-01-18 17:29:02,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-01-18 17:29:02,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-01-18 17:29:02,535 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2019-01-18 17:29:02,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-18 17:29:02,535 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-01-18 17:29:02,535 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-18 17:29:02,535 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-01-18 17:29:02,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-01-18 17:29:02,536 INFO L394 BasicCegarLoop]: Found error trace [2019-01-18 17:29:02,536 INFO L402 BasicCegarLoop]: trace histogram [4, 1, 1, 1] [2019-01-18 17:29:02,536 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-18 17:29:02,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-18 17:29:02,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1861144288, now seen corresponding path program 3 times [2019-01-18 17:29:02,537 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-18 17:29:02,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-18 17:29:02,538 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-18 17:29:02,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-18 17:29:02,538 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-18 17:29:02,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-18 17:29:03,051 WARN L181 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 36 [2019-01-18 17:29:03,169 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-18 17:29:03,170 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-18 17:29:03,170 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-18 17:29:03,171 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-18 17:29:03,171 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-18 17:29:03,171 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-18 17:29:03,171 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 [2019-01-18 17:29:03,190 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-18 17:29:03,190 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-18 17:29:03,315 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-18 17:29:03,315 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-18 17:29:03,318 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-18 17:29:03,325 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2019-01-18 17:29:03,332 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:03,334 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:03,334 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2019-01-18 17:29:03,335 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-18 17:29:03,345 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:29:03,353 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:29:03,353 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:16 [2019-01-18 17:29:03,408 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:03,410 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:03,411 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 33 treesize of output 50 [2019-01-18 17:29:03,417 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:03,418 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:03,419 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 50 [2019-01-18 17:29:03,419 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-18 17:29:03,450 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:29:03,492 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:03,514 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:03,535 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:03,537 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 56 [2019-01-18 17:29:03,549 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:03,551 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:03,553 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:03,554 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 69 [2019-01-18 17:29:03,555 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-18 17:29:03,795 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:29:03,827 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2019-01-18 17:29:03,827 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:47, output treesize:80 [2019-01-18 17:29:04,054 WARN L181 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2019-01-18 17:29:04,058 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:04,059 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:04,060 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:04,062 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 89 [2019-01-18 17:29:04,067 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:04,068 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:04,070 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:04,072 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:04,073 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 69 [2019-01-18 17:29:04,074 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-18 17:29:04,108 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:29:04,243 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:04,245 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:04,265 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:04,282 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:04,284 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:04,287 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:04,288 INFO L683 Elim1Store]: detected equality via solver [2019-01-18 17:29:04,289 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:04,289 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:04,291 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 148 [2019-01-18 17:29:04,312 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:04,314 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:04,316 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:04,317 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:04,320 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:04,321 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 136 [2019-01-18 17:29:04,322 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-18 17:29:04,395 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:29:04,448 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2019-01-18 17:29:04,448 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:157, output treesize:129 [2019-01-18 17:29:05,237 WARN L181 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-01-18 17:29:05,247 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:05,250 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:05,252 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:05,254 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:05,257 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:05,259 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:05,260 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 161 [2019-01-18 17:29:05,269 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:05,270 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:05,271 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:05,273 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:05,276 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:05,278 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 159 [2019-01-18 17:29:05,279 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-18 17:29:05,353 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:29:06,156 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:06,161 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:06,179 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:06,186 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:06,189 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:06,190 INFO L683 Elim1Store]: detected equality via solver [2019-01-18 17:29:06,193 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:06,196 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:06,211 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:06,213 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:06,216 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:06,219 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:06,227 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:06,227 INFO L303 Elim1Store]: Index analysis took 101 ms [2019-01-18 17:29:06,228 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 270 [2019-01-18 17:29:06,243 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:06,250 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:06,253 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:06,258 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:06,259 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:06,260 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 17 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 192 [2019-01-18 17:29:06,262 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-18 17:29:06,422 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:29:06,608 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2019-01-18 17:29:06,608 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:225, output treesize:177 [2019-01-18 17:29:07,354 WARN L181 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2019-01-18 17:29:10,928 WARN L181 SmtUtils]: Spent 3.57 s on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-01-18 17:29:10,939 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:10,943 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:10,949 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:10,953 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:10,959 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:10,962 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:10,966 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:10,970 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:10,975 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:10,977 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:10,978 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 296 [2019-01-18 17:29:10,986 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:10,988 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:10,989 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:10,990 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:10,992 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:10,994 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:10,996 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 212 [2019-01-18 17:29:10,997 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-18 17:29:11,354 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:29:12,826 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:12,851 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:12,854 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:12,865 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:12,917 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:12,929 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:12,973 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:12,998 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:13,014 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:13,038 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:13,050 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:13,066 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:13,081 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:13,090 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:13,102 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:13,109 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:13,109 INFO L303 Elim1Store]: Index analysis took 327 ms [2019-01-18 17:29:13,110 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 394 [2019-01-18 17:29:13,146 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:13,152 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:13,161 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:13,166 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:13,168 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:13,181 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:13,182 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 23 disjoint index pairs (out of 15 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 319 [2019-01-18 17:29:13,183 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-18 17:29:13,535 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:29:13,882 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2019-01-18 17:29:13,883 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:317, output treesize:249 [2019-01-18 17:29:20,184 WARN L181 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2019-01-18 17:29:20,203 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-18 17:29:20,203 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-18 17:29:21,509 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-01-18 17:29:21,528 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-18 17:29:21,528 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 4] total 14 [2019-01-18 17:29:21,528 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-18 17:29:21,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-01-18 17:29:21,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-01-18 17:29:21,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=136, Unknown=1, NotChecked=0, Total=210 [2019-01-18 17:29:21,533 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 12 states. [2019-01-18 17:29:43,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-18 17:29:43,879 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2019-01-18 17:29:43,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-01-18 17:29:43,880 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 7 [2019-01-18 17:29:43,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-18 17:29:43,881 INFO L225 Difference]: With dead ends: 15 [2019-01-18 17:29:43,881 INFO L226 Difference]: Without dead ends: 12 [2019-01-18 17:29:43,882 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=73, Invalid=136, Unknown=1, NotChecked=0, Total=210 [2019-01-18 17:29:43,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-01-18 17:29:43,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-01-18 17:29:43,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-01-18 17:29:43,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-01-18 17:29:43,887 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 7 [2019-01-18 17:29:43,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-18 17:29:43,887 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-01-18 17:29:43,888 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-01-18 17:29:43,888 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-01-18 17:29:43,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-01-18 17:29:43,888 INFO L394 BasicCegarLoop]: Found error trace [2019-01-18 17:29:43,888 INFO L402 BasicCegarLoop]: trace histogram [8, 1, 1, 1] [2019-01-18 17:29:43,888 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-18 17:29:43,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-18 17:29:43,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1542166432, now seen corresponding path program 4 times [2019-01-18 17:29:43,889 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-18 17:29:43,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-18 17:29:43,890 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-18 17:29:43,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-18 17:29:43,890 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-18 17:29:44,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-18 17:29:44,449 WARN L181 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 15 [2019-01-18 17:29:44,760 WARN L181 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 10 [2019-01-18 17:29:44,898 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-01-18 17:29:44,898 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-18 17:29:44,898 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-18 17:29:44,899 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-18 17:29:44,899 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-18 17:29:44,899 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-18 17:29:44,899 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 [2019-01-18 17:29:44,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-18 17:29:44,909 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-18 17:29:46,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-18 17:29:46,950 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-18 17:29:46,953 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2019-01-18 17:29:47,000 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:47,017 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:47,018 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2019-01-18 17:29:47,019 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-18 17:29:47,070 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:29:47,074 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:29:47,075 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:16 [2019-01-18 17:29:47,143 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:47,144 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:47,145 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 33 treesize of output 50 [2019-01-18 17:29:47,149 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:47,150 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:47,151 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 50 [2019-01-18 17:29:47,152 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-18 17:29:47,170 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:29:47,173 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:47,175 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:47,176 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:47,177 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 56 [2019-01-18 17:29:47,180 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:47,181 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:47,182 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:47,183 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 69 [2019-01-18 17:29:47,184 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-18 17:29:47,205 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:29:47,235 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2019-01-18 17:29:47,235 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:47, output treesize:80 [2019-01-18 17:29:47,435 WARN L181 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2019-01-18 17:29:47,438 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:47,438 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:47,439 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:47,440 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 89 [2019-01-18 17:29:47,445 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:47,446 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:47,447 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:47,448 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:47,450 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 69 [2019-01-18 17:29:47,450 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-18 17:29:47,487 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:29:47,552 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:47,554 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:47,556 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:47,557 INFO L683 Elim1Store]: detected equality via solver [2019-01-18 17:29:47,561 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:47,562 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:47,563 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:47,566 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:47,567 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 130 [2019-01-18 17:29:47,594 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:47,596 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:47,600 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:47,601 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:47,602 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 126 [2019-01-18 17:29:47,603 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-18 17:29:47,667 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:29:47,726 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2019-01-18 17:29:47,726 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:157, output treesize:129 [2019-01-18 17:29:48,913 WARN L181 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2019-01-18 17:29:48,919 INFO L683 Elim1Store]: detected equality via solver [2019-01-18 17:29:48,924 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:48,926 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:48,934 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:48,945 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:48,954 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:48,972 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:48,977 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:48,987 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:48,987 INFO L683 Elim1Store]: detected equality via solver [2019-01-18 17:29:48,991 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:48,994 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:49,002 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:49,004 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:49,005 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 259 [2019-01-18 17:29:49,011 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:49,012 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:49,014 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:49,016 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:49,020 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:49,021 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 17 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 178 [2019-01-18 17:29:49,022 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-18 17:29:49,166 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:29:49,651 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:49,653 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:49,656 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:49,657 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:49,658 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:49,659 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:49,660 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 171 [2019-01-18 17:29:49,681 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:49,682 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:49,683 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:49,684 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:49,687 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:49,688 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 127 [2019-01-18 17:29:49,689 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-18 17:29:49,755 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:29:49,873 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2019-01-18 17:29:49,874 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:229, output treesize:173 [2019-01-18 17:29:50,395 WARN L181 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2019-01-18 17:29:52,931 WARN L181 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-01-18 17:29:52,938 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:52,940 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:52,945 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:52,948 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:52,950 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:52,952 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:52,954 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:52,956 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:52,958 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:52,960 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:52,961 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 298 [2019-01-18 17:29:52,973 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:52,975 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:52,977 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:52,979 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:52,982 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:52,984 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:52,985 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 214 [2019-01-18 17:29:52,986 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-18 17:29:53,100 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:29:54,323 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:54,329 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:54,362 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:54,367 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:54,379 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:54,417 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:54,428 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:54,434 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:54,462 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:54,470 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:54,493 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:54,512 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:54,520 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:54,525 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:54,532 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:54,544 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:54,544 INFO L303 Elim1Store]: Index analysis took 252 ms [2019-01-18 17:29:54,545 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 378 [2019-01-18 17:29:54,561 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:54,563 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:54,568 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:54,574 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:54,576 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:54,577 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:29:54,579 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 23 disjoint index pairs (out of 15 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 287 [2019-01-18 17:29:54,580 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-18 17:29:54,832 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:29:55,164 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2019-01-18 17:29:55,165 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:313, output treesize:235 [2019-01-18 17:30:01,258 WARN L181 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 64 [2019-01-18 17:30:07,283 WARN L181 SmtUtils]: Spent 6.02 s on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2019-01-18 17:30:07,300 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:07,309 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:07,314 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:07,325 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:07,341 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:07,348 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:07,361 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:07,377 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:07,388 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:07,398 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:07,405 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:07,413 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:07,419 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:07,424 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:07,429 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:07,429 INFO L303 Elim1Store]: Index analysis took 144 ms [2019-01-18 17:30:07,430 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 191 treesize of output 491 [2019-01-18 17:30:07,443 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:07,446 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:07,448 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:07,450 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:07,453 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:07,455 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:07,457 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:07,459 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 22 disjoint index pairs (out of 15 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 367 [2019-01-18 17:30:07,459 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-18 17:30:07,647 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:30:11,718 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:11,737 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:11,751 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:11,772 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:11,800 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:11,852 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:11,902 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:11,944 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:11,966 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:12,033 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:12,101 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:12,177 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:12,212 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:12,250 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:12,320 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:12,341 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:12,383 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:12,428 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:12,451 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:12,470 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:12,481 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:12,507 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:12,508 INFO L303 Elim1Store]: Index analysis took 966 ms [2019-01-18 17:30:12,509 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 189 treesize of output 585 [2019-01-18 17:30:12,558 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:12,560 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:12,566 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:12,570 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:12,575 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:12,578 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:12,581 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:12,583 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 30 disjoint index pairs (out of 21 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 450 [2019-01-18 17:30:12,585 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-18 17:30:13,652 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:30:14,253 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2019-01-18 17:30:14,254 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:423, output treesize:319 [2019-01-18 17:30:27,765 WARN L181 SmtUtils]: Spent 2.06 s on a formula simplification that was a NOOP. DAG size: 72 [2019-01-18 17:30:43,501 WARN L181 SmtUtils]: Spent 15.73 s on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-01-18 17:30:43,799 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:43,855 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:44,061 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:44,131 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:44,184 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:44,363 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:44,457 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:44,598 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:44,665 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:44,780 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:44,822 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:44,882 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:45,033 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:45,308 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:45,362 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:45,409 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:45,675 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:45,835 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:45,928 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:46,008 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:46,027 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:46,126 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:46,283 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:46,301 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:46,764 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:46,836 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:46,925 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:47,046 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:47,198 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:47,199 INFO L303 Elim1Store]: Index analysis took 3697 ms [2019-01-18 17:30:47,200 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 29 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 876 [2019-01-18 17:30:47,307 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:47,315 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:47,318 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:47,374 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:47,377 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:47,381 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:47,389 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:47,393 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:30:47,394 INFO L303 Elim1Store]: Index analysis took 189 ms [2019-01-18 17:30:47,395 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 38 disjoint index pairs (out of 28 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 194 treesize of output 713 [2019-01-18 17:30:47,396 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-18 17:30:50,196 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:31:02,290 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:02,308 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:02,314 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:02,327 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:02,345 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:02,350 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:02,355 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:02,363 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:02,369 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:02,372 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:02,381 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:02,383 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:02,386 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:02,388 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:02,389 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:02,390 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:02,391 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:02,404 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:02,416 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:02,423 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:02,427 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:02,427 INFO L303 Elim1Store]: Index analysis took 150 ms [2019-01-18 17:31:02,428 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 244 treesize of output 746 [2019-01-18 17:31:02,436 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:02,438 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:02,439 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:02,441 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:02,445 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:02,447 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:02,448 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:02,451 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:02,452 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 29 disjoint index pairs (out of 21 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 169 treesize of output 574 [2019-01-18 17:31:02,454 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-18 17:31:02,761 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:31:04,718 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2019-01-18 17:31:04,719 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:547, output treesize:445 [2019-01-18 17:31:32,548 WARN L181 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 81 [2019-01-18 17:31:51,893 WARN L181 SmtUtils]: Spent 19.34 s on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-01-18 17:31:52,836 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:52,917 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:53,151 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:53,212 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:53,313 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:53,402 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:53,554 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:53,742 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:53,841 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:53,939 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:54,020 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:54,078 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:54,180 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:54,306 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:54,354 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:54,444 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:54,471 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:54,552 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:54,755 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:54,879 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:55,010 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:55,056 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:55,578 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:55,663 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:55,878 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:55,955 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:56,060 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:56,252 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:56,253 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:56,312 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:56,390 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:56,644 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:56,646 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:56,792 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:56,954 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:57,056 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:57,262 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:57,262 INFO L303 Elim1Store]: Index analysis took 5366 ms [2019-01-18 17:31:57,264 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 37 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 319 treesize of output 1173 [2019-01-18 17:31:57,426 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:57,430 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:57,433 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:57,435 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:57,440 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:57,441 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:57,444 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:57,446 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:57,449 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:31:57,450 INFO L303 Elim1Store]: Index analysis took 182 ms [2019-01-18 17:31:57,452 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 46 disjoint index pairs (out of 36 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 267 treesize of output 1238 [2019-01-18 17:31:57,454 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-18 17:32:02,676 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:32:39,533 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,676 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,688 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,698 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,708 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,715 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,720 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,736 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,740 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,756 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,781 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,795 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,798 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,800 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,800 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,802 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,814 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,819 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,826 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,833 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,834 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,835 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,836 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,846 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,847 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,853 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,854 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,856 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,856 INFO L303 Elim1Store]: Index analysis took 345 ms [2019-01-18 17:32:39,858 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 311 treesize of output 1091 [2019-01-18 17:32:39,903 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,922 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,924 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,930 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,932 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,933 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,938 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,940 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,943 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:32:39,945 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 37 disjoint index pairs (out of 28 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 224 treesize of output 863 [2019-01-18 17:32:39,946 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-18 17:32:40,570 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:32:44,180 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2019-01-18 17:32:44,181 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:689, output treesize:557 [2019-01-18 17:32:46,188 WARN L838 $PredicateComparison]: unable to prove that (or (exists ((v_subst_4 Int)) (let ((.cse4 (mod (+ v_subst_4 1) 256))) (let ((.cse9 (mod (+ .cse4 1) 256))) (let ((.cse2 (mod (+ .cse9 1) 256))) (let ((.cse8 (mod (+ .cse2 1) 256))) (let ((.cse7 (mod (+ .cse8 1) 256))) (let ((.cse3 (select c_main_a .cse9)) (.cse5 (select c_main_a (+ v_subst_4 (- 1)))) (.cse0 (mod (+ .cse7 1) 256)) (.cse6 (select c_main_a .cse8)) (.cse1 (select c_main_a .cse7))) (and (= (select c_main_a .cse0) .cse1) (= (select c_main_a .cse2) .cse3) (= (select c_main_a .cse4) .cse3) (= 1000 .cse3) (= 0 (select c_main_a v_subst_4)) (= 1000 .cse5) (= c_main_x .cse0) (= .cse6 1000) (= (select c_main_a c_main_y) .cse1) (= (select c_main_a (mod v_subst_4 256)) .cse5) (= c_main_y (mod (+ .cse0 1) 256)) (= .cse6 .cse1))))))))) (exists ((v_subst_5 Int)) (let ((.cse17 (mod (+ v_subst_5 1) 256))) (let ((.cse16 (mod (+ .cse17 1) 256))) (let ((.cse20 (mod (+ .cse16 1) 256))) (let ((.cse18 (mod (+ .cse20 1) 256))) (let ((.cse19 (mod (+ .cse18 1) 256))) (let ((.cse12 (select c_main_a v_subst_5)) (.cse14 (mod (+ .cse19 1) 256)) (.cse11 (select c_main_a .cse20)) (.cse15 (select c_main_a .cse19)) (.cse10 (select c_main_a .cse18)) (.cse13 (select c_main_a .cse17))) (and (= 1000 .cse10) (= .cse11 .cse10) (= .cse12 .cse13) (= .cse12 (select c_main_a (+ v_subst_5 (- 1)))) (= (mod (+ .cse14 1) 256) c_main_y) (= c_main_x .cse14) (= .cse15 (select c_main_a c_main_x)) (= .cse11 (select c_main_a .cse16)) (= .cse15 (select c_main_a c_main_y)) (= .cse15 .cse10) (= v_subst_5 (mod v_subst_5 256)) (= .cse13 1000)))))))))) is different from false [2019-01-18 17:33:24,488 WARN L181 SmtUtils]: Spent 38.29 s on a formula simplification. DAG size of input: 112 DAG size of output: 100 [2019-01-18 17:33:24,692 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:24,823 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:24,865 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:25,042 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:25,258 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:25,403 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:25,520 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:25,839 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:25,997 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:26,154 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:26,234 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:26,322 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:26,433 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:26,488 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:26,609 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:26,661 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:26,915 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:27,002 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:27,189 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:27,307 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:27,527 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:27,759 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:27,918 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:28,157 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:28,356 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:28,433 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:28,507 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:28,663 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:28,778 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:29,131 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:29,533 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:29,901 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:30,068 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:32,324 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= (+ v_subst_4 (- 1)) (mod (+ (mod (+ (mod (+ (mod (+ (mod (+ (mod (+ (mod (+ v_subst_4 1) 256) 1) 256) 1) 256) 1) 256) 1) 256) 1) 256) 1) 256)) [2019-01-18 17:33:32,325 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:32,405 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:32,604 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:33,133 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:33,278 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:33,281 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:33,624 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:33,751 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:34,336 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:34,482 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:34,553 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:34,739 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:34,804 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:34,805 INFO L303 Elim1Store]: Index analysis took 10315 ms [2019-01-18 17:33:34,806 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 46 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 1732 [2019-01-18 17:33:34,855 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:34,861 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:34,863 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:34,938 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:35,098 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:35,101 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:35,105 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:35,108 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:35,116 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:35,201 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:33:35,202 INFO L303 Elim1Store]: Index analysis took 389 ms [2019-01-18 17:33:35,205 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 57 disjoint index pairs (out of 45 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 318 treesize of output 1417 [2019-01-18 17:33:35,207 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-18 17:33:54,471 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:34:47,381 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,385 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,421 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,434 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,435 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,452 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,455 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,483 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,485 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,486 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,487 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,489 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,491 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,493 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,494 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,519 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,526 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,528 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,529 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,531 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,549 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,550 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,551 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,552 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,554 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,586 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,592 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,593 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,595 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,597 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,598 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,600 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,640 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,646 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,649 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,664 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,664 INFO L303 Elim1Store]: Index analysis took 331 ms [2019-01-18 17:34:47,666 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 394 treesize of output 1540 [2019-01-18 17:34:47,695 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,698 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,700 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,703 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,705 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,709 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,711 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,717 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,720 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,724 INFO L701 Elim1Store]: detected not equals via solver [2019-01-18 17:34:47,726 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 46 disjoint index pairs (out of 36 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 295 treesize of output 1248 [2019-01-18 17:34:47,727 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-18 17:34:49,054 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-18 17:34:58,036 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2019-01-18 17:34:58,036 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:841, output treesize:653 [2019-01-18 17:35:27,109 WARN L181 SmtUtils]: Spent 2.12 s on a formula simplification that was a NOOP. DAG size: 96 [2019-01-18 17:35:27,132 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 16 refuted. 12 times theorem prover too weak. 0 trivial. 8 not checked. [2019-01-18 17:35:27,132 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-18 17:35:34,906 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-01-18 17:35:34,926 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-18 17:35:34,926 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 4] total 19 [2019-01-18 17:35:34,926 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-18 17:35:34,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-01-18 17:35:34,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-01-18 17:35:34,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=202, Unknown=31, NotChecked=34, Total=380 [2019-01-18 17:35:34,927 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 16 states. [2019-01-18 17:37:43,064 WARN L181 SmtUtils]: Spent 7.80 s on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2019-01-18 17:38:00,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-18 17:38:00,281 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-01-18 17:38:00,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-01-18 17:38:00,293 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 11 [2019-01-18 17:38:00,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-18 17:38:00,293 INFO L225 Difference]: With dead ends: 13 [2019-01-18 17:38:00,293 INFO L226 Difference]: Without dead ends: 0 [2019-01-18 17:38:00,294 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 11 SemanticMatches, 19 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 125.5s TimeCoverageRelationStatistics Valid=122, Invalid=216, Unknown=46, NotChecked=36, Total=420 [2019-01-18 17:38:00,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-18 17:38:00,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-18 17:38:00,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-18 17:38:00,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-18 17:38:00,294 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-01-18 17:38:00,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-18 17:38:00,294 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-18 17:38:00,295 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-01-18 17:38:00,295 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-18 17:38:00,295 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-18 17:38:00,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-18 17:38:21,606 WARN L181 SmtUtils]: Spent 21.27 s on a formula simplification. DAG size of input: 374 DAG size of output: 35 [2019-01-18 17:38:21,609 INFO L448 ceAbstractionStarter]: For program point mainENTRY(lines 9 30) no Hoare annotation was computed. [2019-01-18 17:38:21,609 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2019-01-18 17:38:21,609 INFO L448 ceAbstractionStarter]: For program point L27-1(lines 9 30) no Hoare annotation was computed. [2019-01-18 17:38:21,609 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 9 30) no Hoare annotation was computed. [2019-01-18 17:38:21,609 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONASSERT(line 28) no Hoare annotation was computed. [2019-01-18 17:38:21,610 INFO L444 ceAbstractionStarter]: At program point L18-1(lines 18 29) the Hoare annotation is: (let ((.cse0 (select main_a main_x)) (.cse1 (select main_a main_y))) (or (and (= .cse0 1000) (= .cse1 0) (= main_y (+ main_x 1))) (and (= .cse0 .cse1) (not (= 0 .cse1))) (exists ((main_yold Int)) (let ((.cse2 (select main_a main_yold)) (.cse3 (select main_a (+ main_yold (- 1))))) (and (= (mod main_yold 256) main_x) (= 0 .cse2) (= main_y (mod (+ main_yold 1) 256)) (= (select main_a main_y) .cse2) (= (select main_a main_x) .cse3) (= 1000 .cse3)))))) [2019-01-18 17:38:21,620 INFO L202 PluginConnector]: Adding new model SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 05:38:21 BoogieIcfgContainer [2019-01-18 17:38:21,621 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-18 17:38:21,621 INFO L168 Benchmark]: Toolchain (without parser) took 578994.77 ms. Allocated memory was 141.6 MB in the beginning and 327.7 MB in the end (delta: 186.1 MB). Free memory was 107.8 MB in the beginning and 288.3 MB in the end (delta: -180.6 MB). Peak memory consumption was 225.3 MB. Max. memory is 7.1 GB. [2019-01-18 17:38:21,622 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.18 ms. Allocated memory is still 141.6 MB. Free memory is still 108.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-01-18 17:38:21,622 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.08 ms. Allocated memory is still 141.6 MB. Free memory was 107.4 MB in the beginning and 105.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-01-18 17:38:21,623 INFO L168 Benchmark]: Boogie Preprocessor took 29.66 ms. Allocated memory is still 141.6 MB. Free memory was 105.7 MB in the beginning and 104.8 MB in the end (delta: 910.1 kB). Peak memory consumption was 910.1 kB. Max. memory is 7.1 GB. [2019-01-18 17:38:21,623 INFO L168 Benchmark]: RCFGBuilder took 258.00 ms. Allocated memory is still 141.6 MB. Free memory was 104.8 MB in the beginning and 95.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-01-18 17:38:21,623 INFO L168 Benchmark]: TraceAbstraction took 578665.72 ms. Allocated memory was 141.6 MB in the beginning and 327.7 MB in the end (delta: 186.1 MB). Free memory was 95.5 MB in the beginning and 288.3 MB in the end (delta: -192.9 MB). Peak memory consumption was 213.0 MB. Max. memory is 7.1 GB. [2019-01-18 17:38:21,627 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.18 ms. Allocated memory is still 141.6 MB. Free memory is still 108.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 37.08 ms. Allocated memory is still 141.6 MB. Free memory was 107.4 MB in the beginning and 105.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.66 ms. Allocated memory is still 141.6 MB. Free memory was 105.7 MB in the beginning and 104.8 MB in the end (delta: 910.1 kB). Peak memory consumption was 910.1 kB. Max. memory is 7.1 GB. * RCFGBuilder took 258.00 ms. Allocated memory is still 141.6 MB. Free memory was 104.8 MB in the beginning and 95.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 578665.72 ms. Allocated memory was 141.6 MB in the beginning and 327.7 MB in the end (delta: 186.1 MB). Free memory was 95.5 MB in the beginning and 288.3 MB in the end (delta: -192.9 MB). Peak memory consumption was 213.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 28]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (((a[x] == 1000 && a[y] == 0) && y == x + 1) || (a[x] == a[y] && !(0 == a[y]))) || (exists main_yold : int :: ((((main_yold % 256 == x && 0 == a[main_yold]) && y == (main_yold + 1) % 256) && a[y] == a[main_yold]) && a[x] == a[main_yold + -1]) && 1000 == a[main_yold + -1]) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. SAFE Result, 578.5s OverallTime, 5 OverallIterations, 8 TraceHistogramMax, 180.9s AutomataDifference, 0.0s DeadEndRemovalTime, 21.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 15 SDtfs, 3 SDslu, 3 SDs, 0 SdLazy, 85 SolverSat, 9 SolverUnsat, 69 SolverUnknown, 0 SolverNotchecked, 141.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 8 SyntacticMatches, 15 SemanticMatches, 49 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 136.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 10 NumberOfFragments, 73 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 3453 FormulaSimplificationTreeSizeReductionInter, 21.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 373.2s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 71 ConstructedInterpolants, 18 QuantifiedInterpolants, 58064 SizeOfPredicates, 38 NumberOfNonLiveVariables, 167 ConjunctsInSsa, 151 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 32/150 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...