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_array_oct.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/SkatingStrawberry.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-1de736e-m [2019-02-15 11:17:35,418 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-02-15 11:17:35,420 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-02-15 11:17:35,434 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-02-15 11:17:35,436 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-02-15 11:17:35,439 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-02-15 11:17:35,440 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-02-15 11:17:35,444 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-02-15 11:17:35,447 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-02-15 11:17:35,453 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-02-15 11:17:35,454 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2019-02-15 11:17:35,499 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_array_oct.epf [2019-02-15 11:17:35,524 INFO L110 SettingsManager]: Loading preferences was successful [2019-02-15 11:17:35,524 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-02-15 11:17:35,525 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-02-15 11:17:35,525 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-02-15 11:17:35,526 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-02-15 11:17:35,526 INFO L133 SettingsManager]: * User list type=DISABLED [2019-02-15 11:17:35,526 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-02-15 11:17:35,526 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-02-15 11:17:35,526 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-02-15 11:17:35,527 INFO L133 SettingsManager]: * Underlying domain=OctagonDomain [2019-02-15 11:17:35,527 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2019-02-15 11:17:35,528 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-02-15 11:17:35,528 INFO L133 SettingsManager]: * Interval Domain=false [2019-02-15 11:17:35,529 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-02-15 11:17:35,529 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-02-15 11:17:35,529 INFO L133 SettingsManager]: * Use SBE=true [2019-02-15 11:17:35,529 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-02-15 11:17:35,531 INFO L133 SettingsManager]: * sizeof long=4 [2019-02-15 11:17:35,531 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-02-15 11:17:35,532 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-02-15 11:17:35,532 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-02-15 11:17:35,532 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-02-15 11:17:35,532 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-02-15 11:17:35,532 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-02-15 11:17:35,533 INFO L133 SettingsManager]: * sizeof long double=12 [2019-02-15 11:17:35,533 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-02-15 11:17:35,533 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-02-15 11:17:35,534 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-02-15 11:17:35,534 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-02-15 11:17:35,534 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-02-15 11:17:35,534 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-02-15 11:17:35,535 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-02-15 11:17:35,535 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-02-15 11:17:35,535 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-02-15 11:17:35,535 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-02-15 11:17:35,535 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-02-15 11:17:35,536 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-02-15 11:17:35,537 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-02-15 11:17:35,537 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-02-15 11:17:35,590 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-02-15 11:17:35,605 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-02-15 11:17:35,609 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-02-15 11:17:35,611 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-02-15 11:17:35,612 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-02-15 11:17:35,613 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/SkatingStrawberry.bpl [2019-02-15 11:17:35,613 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/SkatingStrawberry.bpl' [2019-02-15 11:17:35,657 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-02-15 11:17:35,659 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-02-15 11:17:35,660 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-02-15 11:17:35,660 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-02-15 11:17:35,660 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-02-15 11:17:35,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.02 11:17:35" (1/1) ... [2019-02-15 11:17:35,690 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.02 11:17:35" (1/1) ... [2019-02-15 11:17:35,696 WARN L165 Inliner]: Program contained no entry procedure! [2019-02-15 11:17:35,697 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-02-15 11:17:35,697 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-02-15 11:17:35,699 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-02-15 11:17:35,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-02-15 11:17:35,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-02-15 11:17:35,701 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-02-15 11:17:35,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.02 11:17:35" (1/1) ... [2019-02-15 11:17:35,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.02 11:17:35" (1/1) ... [2019-02-15 11:17:35,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.02 11:17:35" (1/1) ... [2019-02-15 11:17:35,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.02 11:17:35" (1/1) ... [2019-02-15 11:17:35,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.02 11:17:35" (1/1) ... [2019-02-15 11:17:35,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.02 11:17:35" (1/1) ... [2019-02-15 11:17:35,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.02 11:17:35" (1/1) ... [2019-02-15 11:17:35,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-02-15 11:17:35,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-02-15 11:17:35,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-02-15 11:17:35,731 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-02-15 11:17:35,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.02 11:17:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-02-15 11:17:35,799 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-02-15 11:17:35,799 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-02-15 11:17:35,799 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-02-15 11:17:35,950 INFO L278 CfgBuilder]: Using library mode [2019-02-15 11:17:35,951 INFO L286 CfgBuilder]: Removed 1 assue(true) statements. [2019-02-15 11:17:35,952 INFO L202 PluginConnector]: Adding new model SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 11:17:35 BoogieIcfgContainer [2019-02-15 11:17:35,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-02-15 11:17:35,953 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-02-15 11:17:35,953 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-02-15 11:17:35,957 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-02-15 11:17:35,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.02 11:17:35" (1/2) ... [2019-02-15 11:17:35,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d051572 and model type SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 11:17:35, skipping insertion in model container [2019-02-15 11:17:35,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 11:17:35" (2/2) ... [2019-02-15 11:17:35,960 INFO L112 eAbstractionObserver]: Analyzing ICFG SkatingStrawberry.bpl [2019-02-15 11:17:35,971 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-02-15 11:17:35,979 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-02-15 11:17:35,996 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-02-15 11:17:36,035 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-02-15 11:17:36,037 INFO L383 AbstractCegarLoop]: Hoare is true [2019-02-15 11:17:36,037 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-02-15 11:17:36,037 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-02-15 11:17:36,037 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-02-15 11:17:36,037 INFO L387 AbstractCegarLoop]: Difference is false [2019-02-15 11:17:36,037 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-02-15 11:17:36,038 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-02-15 11:17:36,054 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-02-15 11:17:36,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-02-15 11:17:36,071 INFO L394 BasicCegarLoop]: Found error trace [2019-02-15 11:17:36,072 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-02-15 11:17:36,074 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-15 11:17:36,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-15 11:17:36,082 INFO L82 PathProgramCache]: Analyzing trace with hash 30048, now seen corresponding path program 1 times [2019-02-15 11:17:36,084 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-15 11:17:36,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-15 11:17:36,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-15 11:17:36,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-15 11:17:36,130 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-15 11:17:36,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-15 11:17:36,389 WARN L181 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 10 [2019-02-15 11:17:36,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-15 11:17:36,474 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-02-15 11:17:36,475 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-02-15 11:17:36,475 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-02-15 11:17:36,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-02-15 11:17:36,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-02-15 11:17:36,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-02-15 11:17:36,493 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2019-02-15 11:17:36,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-15 11:17:36,566 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2019-02-15 11:17:36,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-02-15 11:17:36,568 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-02-15 11:17:36,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-15 11:17:36,579 INFO L225 Difference]: With dead ends: 15 [2019-02-15 11:17:36,579 INFO L226 Difference]: Without dead ends: 5 [2019-02-15 11:17:36,583 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 [2019-02-15 11:17:36,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2019-02-15 11:17:36,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-02-15 11:17:36,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-02-15 11:17:36,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2019-02-15 11:17:36,616 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2019-02-15 11:17:36,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-15 11:17:36,617 INFO L480 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2019-02-15 11:17:36,617 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-02-15 11:17:36,617 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2019-02-15 11:17:36,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-02-15 11:17:36,618 INFO L394 BasicCegarLoop]: Found error trace [2019-02-15 11:17:36,618 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-02-15 11:17:36,619 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-15 11:17:36,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-15 11:17:36,619 INFO L82 PathProgramCache]: Analyzing trace with hash 927622, now seen corresponding path program 1 times [2019-02-15 11:17:36,619 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-15 11:17:36,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-15 11:17:36,621 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-15 11:17:36,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-15 11:17:36,621 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-15 11:17:36,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-15 11:17:37,004 WARN L181 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 18 [2019-02-15 11:17:37,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-15 11:17:37,027 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-15 11:17:37,028 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-15 11:17:37,029 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 5 with the following transitions: [2019-02-15 11:17:37,032 INFO L207 CegarAbsIntRunner]: [0], [4], [8], [9] [2019-02-15 11:17:37,093 INFO L148 AbstractInterpreter]: Using domain ArrayDomain [2019-02-15 11:17:37,106 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2019-02-15 11:17:37,734 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-02-15 11:17:37,736 INFO L272 AbstractInterpreter]: Visited 4 different actions 9 times. Merged at 3 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2019-02-15 11:17:37,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-15 11:17:37,745 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-02-15 11:17:37,745 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-15 11:17:37,745 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-15 11:17:37,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-15 11:17:37,760 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-15 11:17:37,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-15 11:17:37,789 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-15 11:17:37,932 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 [2019-02-15 11:17:37,948 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:37,955 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:37,956 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 [2019-02-15 11:17:37,957 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 11:17:38,031 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:17:38,115 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:17:38,116 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:16 [2019-02-15 11:17:38,267 WARN L181 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2019-02-15 11:17:38,383 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:38,392 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:38,394 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:38,508 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 [2019-02-15 11:17:38,540 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:38,566 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:38,601 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 [2019-02-15 11:17:38,602 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 11:17:38,770 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:38,772 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:38,777 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:38,779 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:38,783 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:38,784 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:38,805 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:38,841 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 [2019-02-15 11:17:38,844 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-02-15 11:17:38,935 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2019-02-15 11:17:38,939 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:38,942 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:38,944 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:38,971 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 57 [2019-02-15 11:17:38,995 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:38,999 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:39,000 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 [2019-02-15 11:17:39,001 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-02-15 11:17:39,165 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:39,168 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:39,169 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:39,173 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:39,183 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:39,184 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:39,185 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:39,187 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 [2019-02-15 11:17:39,189 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-02-15 11:17:39,292 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2019-02-15 11:17:39,614 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. [2019-02-15 11:17:39,615 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:42, output treesize:145 [2019-02-15 11:17:39,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-15 11:17:39,740 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-15 11:17:39,841 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-15 11:17:39,864 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-15 11:17:39,864 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2019-02-15 11:17:39,864 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-15 11:17:39,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-02-15 11:17:39,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-02-15 11:17:39,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2019-02-15 11:17:39,866 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 6 states. [2019-02-15 11:17:43,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-15 11:17:43,955 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-02-15 11:17:43,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-02-15 11:17:43,955 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2019-02-15 11:17:43,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-15 11:17:43,956 INFO L225 Difference]: With dead ends: 8 [2019-02-15 11:17:43,956 INFO L226 Difference]: Without dead ends: 6 [2019-02-15 11:17:43,957 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2019-02-15 11:17:43,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2019-02-15 11:17:43,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2019-02-15 11:17:43,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-02-15 11:17:43,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2019-02-15 11:17:43,960 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2019-02-15 11:17:43,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-15 11:17:43,961 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2019-02-15 11:17:43,961 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-02-15 11:17:43,961 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2019-02-15 11:17:43,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-02-15 11:17:43,961 INFO L394 BasicCegarLoop]: Found error trace [2019-02-15 11:17:43,962 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2019-02-15 11:17:43,962 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-15 11:17:43,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-15 11:17:43,963 INFO L82 PathProgramCache]: Analyzing trace with hash 28752416, now seen corresponding path program 2 times [2019-02-15 11:17:43,963 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-15 11:17:43,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-15 11:17:43,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-15 11:17:43,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-15 11:17:43,964 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-15 11:17:43,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-15 11:17:44,305 WARN L181 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 23 [2019-02-15 11:17:44,315 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-15 11:17:44,315 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-15 11:17:44,316 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-15 11:17:44,316 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-15 11:17:44,316 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-15 11:17:44,317 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-15 11:17:44,317 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-15 11:17:44,327 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-15 11:17:44,327 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-15 11:17:44,338 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-02-15 11:17:44,339 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-15 11:17:44,340 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-15 11:17:44,347 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 [2019-02-15 11:17:44,360 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:44,362 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:44,363 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 [2019-02-15 11:17:44,364 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 11:17:44,395 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:17:44,409 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:17:44,409 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:16 [2019-02-15 11:17:44,496 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:44,514 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:44,530 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:44,544 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 [2019-02-15 11:17:44,550 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:44,552 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:44,554 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:44,556 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 [2019-02-15 11:17:44,557 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 11:17:44,714 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:44,715 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:44,718 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:44,719 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 [2019-02-15 11:17:44,720 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-02-15 11:17:44,798 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2019-02-15 11:17:44,806 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:44,808 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:44,815 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:44,855 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 [2019-02-15 11:17:44,875 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:44,878 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:44,880 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:44,903 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 [2019-02-15 11:17:44,904 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-02-15 11:17:44,969 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:44,972 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:44,974 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:44,984 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 [2019-02-15 11:17:44,985 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-02-15 11:17:45,130 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2019-02-15 11:17:45,209 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. [2019-02-15 11:17:45,210 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:45, output treesize:157 [2019-02-15 11:17:45,423 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:45,425 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:45,429 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:45,438 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 [2019-02-15 11:17:45,490 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:45,492 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:45,493 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:45,498 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:45,516 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 [2019-02-15 11:17:45,517 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 11:17:45,577 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:17:45,581 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:45,583 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:45,584 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:45,586 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 [2019-02-15 11:17:45,591 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:45,593 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:45,594 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:45,598 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:45,600 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 [2019-02-15 11:17:45,601 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-02-15 11:17:45,638 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:17:45,831 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:45,833 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:45,837 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:45,839 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:45,840 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:45,841 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:45,848 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:45,853 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 [2019-02-15 11:17:45,868 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:45,887 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:45,889 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:45,892 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:45,909 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 [2019-02-15 11:17:45,911 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-02-15 11:17:45,965 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:17:45,972 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:45,974 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:45,976 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:45,978 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:45,980 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:45,982 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:45,991 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:45,993 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 [2019-02-15 11:17:46,003 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:46,004 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:46,026 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:46,048 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:46,049 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 [2019-02-15 11:17:46,051 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-02-15 11:17:46,245 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:17:46,349 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. [2019-02-15 11:17:46,350 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:125, output treesize:178 [2019-02-15 11:17:46,563 WARN L181 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 53 [2019-02-15 11:17:46,570 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-15 11:17:46,571 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-15 11:17:46,669 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-02-15 11:17:46,688 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-15 11:17:46,689 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 3] total 9 [2019-02-15 11:17:46,689 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-15 11:17:46,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-02-15 11:17:46,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-02-15 11:17:46,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2019-02-15 11:17:46,690 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 8 states. [2019-02-15 11:17:53,244 WARN L181 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2019-02-15 11:17:57,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-15 11:17:57,405 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2019-02-15 11:17:57,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-02-15 11:17:57,408 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 5 [2019-02-15 11:17:57,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-15 11:17:57,408 INFO L225 Difference]: With dead ends: 10 [2019-02-15 11:17:57,409 INFO L226 Difference]: Without dead ends: 8 [2019-02-15 11:17:57,409 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2019-02-15 11:17:57,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-02-15 11:17:57,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-02-15 11:17:57,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-02-15 11:17:57,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-02-15 11:17:57,413 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2019-02-15 11:17:57,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-15 11:17:57,413 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-02-15 11:17:57,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-02-15 11:17:57,413 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-02-15 11:17:57,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-02-15 11:17:57,414 INFO L394 BasicCegarLoop]: Found error trace [2019-02-15 11:17:57,414 INFO L402 BasicCegarLoop]: trace histogram [4, 1, 1, 1] [2019-02-15 11:17:57,414 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-15 11:17:57,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-15 11:17:57,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1861144288, now seen corresponding path program 3 times [2019-02-15 11:17:57,414 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-15 11:17:57,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-15 11:17:57,415 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-15 11:17:57,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-15 11:17:57,416 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-15 11:17:57,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-15 11:17:58,143 WARN L181 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 36 [2019-02-15 11:17:58,301 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-15 11:17:58,301 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-15 11:17:58,301 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-15 11:17:58,302 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-15 11:17:58,302 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-15 11:17:58,302 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-15 11:17:58,302 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-15 11:17:58,319 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-15 11:17:58,319 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-15 11:17:58,443 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-15 11:17:58,443 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-15 11:17:58,445 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-15 11:17:58,448 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 [2019-02-15 11:17:58,450 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:58,452 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:58,453 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 [2019-02-15 11:17:58,454 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 11:17:58,469 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:17:58,477 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:17:58,477 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:16 [2019-02-15 11:17:58,542 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:58,543 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:58,545 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 [2019-02-15 11:17:58,549 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:58,550 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:58,551 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 [2019-02-15 11:17:58,552 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 11:17:58,610 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:17:58,615 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:58,620 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:58,622 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:58,623 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 [2019-02-15 11:17:58,627 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:58,630 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:58,631 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:58,632 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 [2019-02-15 11:17:58,632 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-02-15 11:17:58,652 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:17:58,686 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. [2019-02-15 11:17:58,687 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:47, output treesize:80 [2019-02-15 11:17:58,947 WARN L181 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2019-02-15 11:17:58,951 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:58,952 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:58,954 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:58,955 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 [2019-02-15 11:17:58,962 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:58,963 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:58,965 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:58,973 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:58,974 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 [2019-02-15 11:17:58,974 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 11:17:59,047 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:17:59,187 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:59,188 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:59,209 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:59,224 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:59,226 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:59,227 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:59,228 INFO L683 Elim1Store]: detected equality via solver [2019-02-15 11:17:59,229 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:59,230 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:59,232 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 [2019-02-15 11:17:59,238 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:59,239 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:59,241 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:59,242 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:59,244 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:59,246 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 [2019-02-15 11:17:59,247 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-02-15 11:17:59,316 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:17:59,368 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. [2019-02-15 11:17:59,368 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:157, output treesize:129 [2019-02-15 11:17:59,877 WARN L181 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-02-15 11:17:59,882 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:59,884 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:59,887 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:59,889 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:59,889 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:59,890 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:59,891 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 [2019-02-15 11:17:59,896 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:59,897 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:59,898 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:59,900 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:59,901 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:17:59,903 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 [2019-02-15 11:17:59,904 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 11:17:59,969 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:18:00,243 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:00,253 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:00,256 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:00,258 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:00,259 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:00,259 INFO L683 Elim1Store]: detected equality via solver [2019-02-15 11:18:00,261 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:00,262 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:00,265 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:00,281 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:00,293 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:00,294 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:00,297 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:00,298 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 [2019-02-15 11:18:00,307 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:00,308 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:00,309 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:00,310 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:00,313 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:00,314 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 [2019-02-15 11:18:00,316 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-02-15 11:18:00,474 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:18:00,597 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. [2019-02-15 11:18:00,597 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:225, output treesize:177 [2019-02-15 11:18:01,795 WARN L181 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2019-02-15 11:18:04,055 WARN L181 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-02-15 11:18:04,063 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:04,073 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:04,083 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:04,088 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:04,091 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:04,097 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:04,102 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:04,104 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:04,107 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:04,113 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:04,114 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 [2019-02-15 11:18:04,123 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:04,125 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:04,126 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:04,128 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:04,131 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:04,133 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:04,134 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 [2019-02-15 11:18:04,136 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 11:18:04,233 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:18:05,267 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:05,289 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:05,313 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:05,322 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:05,338 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:05,356 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:05,364 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:05,383 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:05,400 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:05,403 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:05,427 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:05,459 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:05,471 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:05,489 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:05,501 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:05,518 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:05,519 INFO L303 Elim1Store]: Index analysis took 305 ms [2019-02-15 11:18:05,520 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 [2019-02-15 11:18:05,557 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:05,559 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:05,564 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:05,566 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:05,568 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:05,573 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:05,574 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 [2019-02-15 11:18:05,575 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-02-15 11:18:05,791 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:18:06,019 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. [2019-02-15 11:18:06,019 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:317, output treesize:249 [2019-02-15 11:18:10,281 WARN L181 SmtUtils]: Spent 512.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2019-02-15 11:18:10,299 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-15 11:18:10,299 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-15 11:18:12,677 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-02-15 11:18:12,696 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-15 11:18:12,697 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 4] total 14 [2019-02-15 11:18:12,697 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-15 11:18:12,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-02-15 11:18:12,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-02-15 11:18:12,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2019-02-15 11:18:12,698 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 12 states. [2019-02-15 11:18:33,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-15 11:18:33,283 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2019-02-15 11:18:33,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-02-15 11:18:33,283 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 7 [2019-02-15 11:18:33,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-15 11:18:33,284 INFO L225 Difference]: With dead ends: 15 [2019-02-15 11:18:33,284 INFO L226 Difference]: Without dead ends: 12 [2019-02-15 11:18:33,285 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2019-02-15 11:18:33,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-02-15 11:18:33,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-02-15 11:18:33,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-02-15 11:18:33,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-02-15 11:18:33,290 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 7 [2019-02-15 11:18:33,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-15 11:18:33,291 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-02-15 11:18:33,291 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-02-15 11:18:33,291 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-02-15 11:18:33,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-02-15 11:18:33,291 INFO L394 BasicCegarLoop]: Found error trace [2019-02-15 11:18:33,292 INFO L402 BasicCegarLoop]: trace histogram [8, 1, 1, 1] [2019-02-15 11:18:33,292 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-15 11:18:33,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-15 11:18:33,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1542166432, now seen corresponding path program 4 times [2019-02-15 11:18:33,292 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-15 11:18:33,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-15 11:18:33,293 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-15 11:18:33,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-15 11:18:33,293 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-15 11:18:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-15 11:18:33,843 WARN L181 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 15 [2019-02-15 11:18:34,040 WARN L181 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 30 [2019-02-15 11:18:34,266 WARN L181 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 10 [2019-02-15 11:18:34,484 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-02-15 11:18:34,484 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-15 11:18:34,485 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-15 11:18:34,485 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-15 11:18:34,485 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-15 11:18:34,485 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-15 11:18:34,485 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-02-15 11:18:34,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-15 11:18:34,495 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-15 11:18:36,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-15 11:18:36,562 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-15 11:18:36,565 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 [2019-02-15 11:18:36,571 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:36,574 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:36,575 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 [2019-02-15 11:18:36,575 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 11:18:36,590 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:18:36,597 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:18:36,598 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:16 [2019-02-15 11:18:36,641 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:36,643 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:36,644 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 [2019-02-15 11:18:36,648 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:36,649 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:36,649 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 [2019-02-15 11:18:36,650 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 11:18:36,668 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:18:36,672 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:36,673 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:36,674 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:36,676 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 [2019-02-15 11:18:36,682 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:36,683 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:36,684 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:36,685 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 [2019-02-15 11:18:36,685 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-02-15 11:18:36,707 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:18:36,741 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. [2019-02-15 11:18:36,742 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:47, output treesize:80 [2019-02-15 11:18:36,940 WARN L181 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2019-02-15 11:18:36,944 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:36,944 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:36,945 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:36,946 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 [2019-02-15 11:18:36,951 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:36,952 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:36,953 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:36,955 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:36,956 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 [2019-02-15 11:18:36,957 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 11:18:36,996 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:18:37,075 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:37,078 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:37,080 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:37,080 INFO L683 Elim1Store]: detected equality via solver [2019-02-15 11:18:37,081 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:37,082 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:37,085 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:37,087 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:37,089 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 [2019-02-15 11:18:37,095 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:37,096 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:37,098 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:37,100 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:37,102 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 [2019-02-15 11:18:37,103 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-02-15 11:18:37,156 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:18:37,221 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. [2019-02-15 11:18:37,221 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:157, output treesize:129 [2019-02-15 11:18:38,704 WARN L181 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2019-02-15 11:18:38,717 INFO L683 Elim1Store]: detected equality via solver [2019-02-15 11:18:38,727 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:38,736 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:38,743 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:38,747 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:38,755 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:38,762 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:38,768 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:38,775 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:38,777 INFO L683 Elim1Store]: detected equality via solver [2019-02-15 11:18:38,797 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:38,813 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:38,823 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:38,834 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:38,835 INFO L303 Elim1Store]: Index analysis took 129 ms [2019-02-15 11:18:38,836 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 [2019-02-15 11:18:38,843 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:38,848 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:38,851 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:38,853 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:38,860 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:38,861 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 [2019-02-15 11:18:38,862 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 11:18:39,043 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:18:39,438 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:39,440 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:39,441 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:39,442 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:39,443 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:39,445 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:39,446 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 [2019-02-15 11:18:39,467 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:39,468 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:39,469 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:39,471 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:39,473 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:39,474 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 [2019-02-15 11:18:39,475 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-02-15 11:18:39,540 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:18:39,676 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. [2019-02-15 11:18:39,676 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:229, output treesize:173 [2019-02-15 11:18:40,366 WARN L181 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2019-02-15 11:18:43,753 WARN L181 SmtUtils]: Spent 3.38 s on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-02-15 11:18:43,760 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:43,762 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:43,763 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:43,765 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:43,767 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:43,768 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:43,770 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:43,771 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:43,772 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:43,774 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:43,776 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 [2019-02-15 11:18:43,786 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:43,787 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:43,789 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:43,790 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:43,797 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:43,798 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:43,800 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 [2019-02-15 11:18:43,801 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 11:18:43,912 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:18:45,023 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:45,032 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:45,037 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:45,048 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:45,061 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:45,077 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:45,083 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:45,094 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:45,102 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:45,116 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:45,123 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:45,128 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:45,163 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:45,180 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:45,192 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:45,210 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:45,210 INFO L303 Elim1Store]: Index analysis took 310 ms [2019-02-15 11:18:45,211 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 [2019-02-15 11:18:45,223 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:45,224 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:45,226 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:45,230 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:45,231 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:45,233 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:45,235 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 [2019-02-15 11:18:45,236 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-02-15 11:18:45,624 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:18:46,186 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. [2019-02-15 11:18:46,187 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:313, output treesize:235 [2019-02-15 11:18:52,297 WARN L181 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 64 [2019-02-15 11:18:58,592 WARN L181 SmtUtils]: Spent 6.29 s on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2019-02-15 11:18:58,611 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:58,617 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:58,628 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:58,642 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:58,653 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:58,661 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:58,671 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:58,682 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:58,690 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:58,697 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:58,716 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:58,719 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:58,725 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:58,733 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:58,744 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:58,744 INFO L303 Elim1Store]: Index analysis took 150 ms [2019-02-15 11:18:58,746 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 [2019-02-15 11:18:58,759 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:58,762 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:58,765 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:58,767 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:58,768 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:58,770 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:58,772 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:18:58,774 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 [2019-02-15 11:18:58,776 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 11:18:58,983 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:19:03,352 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:03,432 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:03,448 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:03,502 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:03,636 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:03,722 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:03,789 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:03,802 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:03,883 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:03,954 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:04,002 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:04,079 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:04,353 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:04,371 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:04,405 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:04,431 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:04,464 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:04,577 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:04,605 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:04,636 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:04,643 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:04,668 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:04,669 INFO L303 Elim1Store]: Index analysis took 1412 ms [2019-02-15 11:19:04,670 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 [2019-02-15 11:19:04,696 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:04,767 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:04,776 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:04,851 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:04,865 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:04,873 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:04,880 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:04,880 INFO L303 Elim1Store]: Index analysis took 207 ms [2019-02-15 11:19:04,882 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 [2019-02-15 11:19:04,884 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-02-15 11:19:05,727 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:19:06,419 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. [2019-02-15 11:19:06,419 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:423, output treesize:319 [2019-02-15 11:19:23,337 WARN L181 SmtUtils]: Spent 2.06 s on a formula simplification that was a NOOP. DAG size: 72 [2019-02-15 11:19:42,922 WARN L181 SmtUtils]: Spent 19.58 s on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-02-15 11:19:43,107 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:43,210 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:43,225 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:43,315 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:43,413 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:43,447 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:43,506 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:43,573 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:43,679 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:43,721 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:43,778 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:43,895 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:44,067 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:44,128 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:44,311 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:44,430 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:44,507 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:44,523 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:44,597 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:44,651 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:44,692 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:44,710 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:44,725 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:44,773 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:44,842 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:44,907 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:44,976 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:45,081 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:45,138 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:45,139 INFO L303 Elim1Store]: Index analysis took 2215 ms [2019-02-15 11:19:45,140 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 [2019-02-15 11:19:45,160 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:45,184 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:45,186 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:45,188 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:45,192 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:45,197 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:45,199 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:45,202 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:19:45,205 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 [2019-02-15 11:19:45,207 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 11:19:47,166 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:20:08,370 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:08,373 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:08,376 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:08,390 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:08,396 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:08,399 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:08,410 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:08,422 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:08,424 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:08,429 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:08,435 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:08,444 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:08,445 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:08,447 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:08,449 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:08,450 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:08,452 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:08,463 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:08,486 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:08,487 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:08,489 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:08,489 INFO L303 Elim1Store]: Index analysis took 133 ms [2019-02-15 11:20:08,491 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 [2019-02-15 11:20:08,505 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:08,508 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:08,510 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:08,512 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:08,515 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:08,517 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:08,520 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:08,524 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:08,525 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 [2019-02-15 11:20:08,526 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-02-15 11:20:09,311 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:20:12,976 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. [2019-02-15 11:20:12,977 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:547, output treesize:445 [2019-02-15 11:20:39,317 WARN L181 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 81 [2019-02-15 11:20:56,101 WARN L181 SmtUtils]: Spent 16.78 s on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-02-15 11:20:56,222 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:56,329 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:56,697 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:56,742 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:56,808 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:56,912 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:57,026 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:57,237 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:57,317 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:57,409 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:57,478 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:57,593 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:57,649 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:57,745 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:57,911 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:58,160 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:58,514 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:58,614 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:58,769 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:58,771 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:58,835 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:58,836 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:58,838 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:58,869 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:59,057 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:59,096 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:59,166 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:59,282 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:59,437 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:59,575 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:59,664 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:59,729 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:59,731 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:59,795 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:20:59,972 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:00,031 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:00,247 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:00,247 INFO L303 Elim1Store]: Index analysis took 4144 ms [2019-02-15 11:21:00,249 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 [2019-02-15 11:21:00,380 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:00,386 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:00,394 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:00,398 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:00,431 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:00,434 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:00,436 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:00,439 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:00,440 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:00,441 INFO L303 Elim1Store]: Index analysis took 188 ms [2019-02-15 11:21:00,443 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 [2019-02-15 11:21:00,444 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 11:21:05,170 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:21:35,946 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:35,957 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:35,961 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:35,969 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:35,976 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:35,987 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:35,995 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:36,002 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:36,004 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:36,008 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:36,022 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:36,025 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:36,041 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:36,042 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:36,043 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:36,045 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:36,053 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:36,054 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:36,060 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:36,067 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:36,068 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:36,088 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:36,089 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:36,101 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:36,111 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:36,112 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:36,113 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:36,115 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:36,115 INFO L303 Elim1Store]: Index analysis took 203 ms [2019-02-15 11:21:36,117 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 [2019-02-15 11:21:36,140 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:36,143 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:36,147 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:36,150 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:36,152 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:36,156 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:36,159 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:36,164 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:36,167 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:21:36,173 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 [2019-02-15 11:21:36,174 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-02-15 11:21:37,055 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:21:41,476 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. [2019-02-15 11:21:41,476 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:689, output treesize:557 [2019-02-15 11:22:08,989 WARN L181 SmtUtils]: Spent 2.06 s on a formula simplification that was a NOOP. DAG size: 89 [2019-02-15 11:22:41,280 WARN L181 SmtUtils]: Spent 32.28 s on a formula simplification. DAG size of input: 112 DAG size of output: 100 [2019-02-15 11:22:41,327 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:41,561 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:41,709 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:41,951 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:42,068 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:42,415 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:42,585 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:42,739 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:42,871 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:42,986 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:43,225 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:43,306 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:43,352 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:43,517 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:43,697 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:44,084 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:44,181 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:44,240 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:44,400 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:44,516 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:44,712 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:44,853 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:44,983 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:45,145 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:45,343 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:45,420 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:45,576 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:45,642 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:45,888 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:46,007 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:46,137 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:46,363 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:46,447 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:46,448 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:46,541 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:46,715 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:46,794 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:46,929 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:46,930 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:47,035 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:47,922 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:48,031 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:48,190 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:48,887 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:49,046 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:49,196 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:49,197 INFO L303 Elim1Store]: Index analysis took 7914 ms [2019-02-15 11:22:49,198 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 [2019-02-15 11:22:49,424 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:49,429 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:49,432 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:49,450 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:49,467 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:49,469 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:49,472 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:49,477 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:49,687 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:49,695 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:22:49,695 INFO L303 Elim1Store]: Index analysis took 491 ms [2019-02-15 11:22:49,697 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 [2019-02-15 11:22:49,699 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 11:22:59,384 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:23:33,086 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:33,187 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:33,198 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:33,224 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:33,237 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:33,521 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:33,536 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:33,554 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:33,591 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:33,620 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:33,621 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:33,674 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:33,697 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:33,698 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:33,715 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:33,730 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:33,749 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:33,781 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:33,794 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:33,795 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:33,804 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:33,807 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:33,808 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:33,809 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:33,873 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:33,883 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:33,888 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:33,889 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:33,890 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:33,892 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:33,894 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:33,896 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:33,951 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:33,965 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:34,012 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:34,023 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:34,024 INFO L303 Elim1Store]: Index analysis took 967 ms [2019-02-15 11:23:34,025 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 [2019-02-15 11:23:34,101 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:34,105 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:34,111 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:34,112 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:34,114 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:34,119 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:34,121 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:34,124 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:34,127 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:34,130 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 11:23:34,131 INFO L303 Elim1Store]: Index analysis took 102 ms [2019-02-15 11:23:34,133 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 [2019-02-15 11:23:34,136 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-02-15 11:23:35,356 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 11:23:43,758 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. [2019-02-15 11:23:43,758 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:841, output treesize:653 [2019-02-15 11:24:27,663 WARN L181 SmtUtils]: Spent 4.07 s on a formula simplification that was a NOOP. DAG size: 96 [2019-02-15 11:24:27,672 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 16 refuted. 20 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-15 11:24:27,673 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-15 11:24:34,034 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-02-15 11:24:34,054 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-15 11:24:34,054 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 4] total 19 [2019-02-15 11:24:34,054 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-15 11:24:34,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-02-15 11:24:34,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-02-15 11:24:34,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=212, Unknown=46, NotChecked=0, Total=380 [2019-02-15 11:24:34,056 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 16 states. [2019-02-15 11:25:58,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-15 11:25:58,540 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-02-15 11:25:58,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-02-15 11:25:58,547 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 11 [2019-02-15 11:25:58,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-15 11:25:58,548 INFO L225 Difference]: With dead ends: 13 [2019-02-15 11:25:58,548 INFO L226 Difference]: Without dead ends: 0 [2019-02-15 11:25:58,548 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 11 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 128.7s TimeCoverageRelationStatistics Valid=122, Invalid=212, Unknown=46, NotChecked=0, Total=380 [2019-02-15 11:25:58,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-02-15 11:25:58,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-02-15 11:25:58,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-02-15 11:25:58,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-02-15 11:25:58,549 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-02-15 11:25:58,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-15 11:25:58,549 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-02-15 11:25:58,549 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-02-15 11:25:58,549 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-02-15 11:25:58,549 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-15 11:25:58,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-02-15 11:26:25,489 WARN L181 SmtUtils]: Spent 26.90 s on a formula simplification. DAG size of input: 374 DAG size of output: 35 [2019-02-15 11:26:25,492 INFO L448 ceAbstractionStarter]: For program point mainENTRY(lines 9 30) no Hoare annotation was computed. [2019-02-15 11:26:25,492 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2019-02-15 11:26:25,492 INFO L448 ceAbstractionStarter]: For program point L27-1(lines 9 30) no Hoare annotation was computed. [2019-02-15 11:26:25,492 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 9 30) no Hoare annotation was computed. [2019-02-15 11:26:25,493 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)))))) [2019-02-15 11:26:25,493 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONASSERT(line 28) no Hoare annotation was computed. [2019-02-15 11:26:25,504 INFO L202 PluginConnector]: Adding new model SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 11:26:25 BoogieIcfgContainer [2019-02-15 11:26:25,504 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-02-15 11:26:25,505 INFO L168 Benchmark]: Toolchain (without parser) took 529846.77 ms. Allocated memory was 140.5 MB in the beginning and 292.0 MB in the end (delta: 151.5 MB). Free memory was 108.0 MB in the beginning and 224.8 MB in the end (delta: -116.8 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. [2019-02-15 11:26:25,505 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory is still 109.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-02-15 11:26:25,506 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.33 ms. Allocated memory is still 140.5 MB. Free memory was 107.8 MB in the beginning and 106.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-02-15 11:26:25,506 INFO L168 Benchmark]: Boogie Preprocessor took 29.57 ms. Allocated memory is still 140.5 MB. Free memory was 106.0 MB in the beginning and 104.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-02-15 11:26:25,506 INFO L168 Benchmark]: RCFGBuilder took 221.98 ms. Allocated memory is still 140.5 MB. Free memory was 104.9 MB in the beginning and 95.9 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-02-15 11:26:25,507 INFO L168 Benchmark]: TraceAbstraction took 529551.14 ms. Allocated memory was 140.5 MB in the beginning and 292.0 MB in the end (delta: 151.5 MB). Free memory was 95.7 MB in the beginning and 224.8 MB in the end (delta: -129.2 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2019-02-15 11:26:25,509 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 0.24 ms. Allocated memory is still 140.5 MB. Free memory is still 109.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 40.33 ms. Allocated memory is still 140.5 MB. Free memory was 107.8 MB in the beginning and 106.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.57 ms. Allocated memory is still 140.5 MB. Free memory was 106.0 MB in the beginning and 104.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 221.98 ms. Allocated memory is still 140.5 MB. Free memory was 104.9 MB in the beginning and 95.9 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 529551.14 ms. Allocated memory was 140.5 MB in the beginning and 292.0 MB in the end (delta: 151.5 MB). Free memory was 95.7 MB in the beginning and 224.8 MB in the end (delta: -129.2 MB). Peak memory consumption was 22.4 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, 529.4s OverallTime, 5 OverallIterations, 8 TraceHistogramMax, 119.9s AutomataDifference, 0.0s DeadEndRemovalTime, 26.9s HoareAnnotationTime, HoareTripleCheckerStatistics: 15 SDtfs, 3 SDslu, 3 SDs, 0 SdLazy, 82 SolverSat, 9 SolverUnsat, 58 SolverUnknown, 0 SolverNotchecked, 118.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 8 SyntacticMatches, 15 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 139.6s 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, 0.7s 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, 26.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 378.9s 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...