/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-equiv.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8a14012e553caa636f65c1137831746b6d9875cd-8a14012 [2021-08-06 22:21:50,303 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-06 22:21:50,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-06 22:21:50,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-06 22:21:50,422 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe.epf [2021-08-06 22:21:50,458 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-06 22:21:50,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-06 22:21:50,459 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-06 22:21:50,459 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-06 22:21:50,462 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-06 22:21:50,462 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-06 22:21:50,462 INFO L138 SettingsManager]: * Use SBE=true [2021-08-06 22:21:50,463 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-06 22:21:50,463 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-06 22:21:50,463 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-06 22:21:50,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-06 22:21:50,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-06 22:21:50,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-06 22:21:50,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-06 22:21:50,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-06 22:21:50,465 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-06 22:21:50,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-06 22:21:50,465 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-06 22:21:50,465 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-06 22:21:50,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-06 22:21:50,466 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-06 22:21:50,466 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-06 22:21:50,466 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-06 22:21:50,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-06 22:21:50,466 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-06 22:21:50,467 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-06 22:21:50,467 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-06 22:21:50,467 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-06 22:21:50,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-06 22:21:50,467 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-06 22:21:50,467 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-08-06 22:21:50,468 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-06 22:21:50,468 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-08-06 22:21:50,468 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-06 22:21:50,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-06 22:21:50,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-06 22:21:50,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-06 22:21:50,813 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-06 22:21:50,815 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-06 22:21:50,816 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-equiv.wvr.bpl [2021-08-06 22:21:50,816 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-equiv.wvr.bpl' [2021-08-06 22:21:50,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-06 22:21:50,847 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-06 22:21:50,850 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-06 22:21:50,850 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-06 22:21:50,850 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-06 22:21:50,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 10:21:50" (1/1) ... [2021-08-06 22:21:50,868 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 10:21:50" (1/1) ... [2021-08-06 22:21:50,876 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-06 22:21:50,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-06 22:21:50,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-06 22:21:50,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-06 22:21:50,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 10:21:50" (1/1) ... [2021-08-06 22:21:50,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 10:21:50" (1/1) ... [2021-08-06 22:21:50,886 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 10:21:50" (1/1) ... [2021-08-06 22:21:50,886 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 10:21:50" (1/1) ... [2021-08-06 22:21:50,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 10:21:50" (1/1) ... [2021-08-06 22:21:50,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 10:21:50" (1/1) ... [2021-08-06 22:21:50,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 10:21:50" (1/1) ... [2021-08-06 22:21:50,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-06 22:21:50,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-06 22:21:50,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-06 22:21:50,898 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-06 22:21:50,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 10:21:50" (1/1) ... [2021-08-06 22:21:50,905 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-06 22:21:50,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 22:21:50,925 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-06 22:21:50,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-06 22:21:50,969 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-08-06 22:21:50,969 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-08-06 22:21:50,970 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-08-06 22:21:50,970 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-08-06 22:21:50,970 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-08-06 22:21:50,970 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-08-06 22:21:50,970 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-06 22:21:50,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-06 22:21:50,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-06 22:21:50,970 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-08-06 22:21:50,971 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-08-06 22:21:50,971 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-08-06 22:21:50,971 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-08-06 22:21:50,971 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-08-06 22:21:50,971 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-08-06 22:21:50,972 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-06 22:21:51,173 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-06 22:21:51,173 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-08-06 22:21:51,174 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2021-08-06 22:21:51,174 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread3EXIT is neither atomic block end nor error location. [2021-08-06 22:21:51,174 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread4EXIT is neither atomic block end nor error location. [2021-08-06 22:21:51,175 INFO L202 PluginConnector]: Adding new model parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 10:21:51 BoogieIcfgContainer [2021-08-06 22:21:51,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-06 22:21:51,177 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-06 22:21:51,177 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-06 22:21:51,180 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-06 22:21:51,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 10:21:50" (1/2) ... [2021-08-06 22:21:51,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a446d6e and model type parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.08 10:21:51, skipping insertion in model container [2021-08-06 22:21:51,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 10:21:51" (2/2) ... [2021-08-06 22:21:51,182 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-sum-equiv.wvr.bpl [2021-08-06 22:21:51,201 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-06 22:21:51,201 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-06 22:21:51,201 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-06 22:21:51,201 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-06 22:21:51,288 INFO L148 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2021-08-06 22:21:51,326 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-06 22:21:51,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 22:21:51,328 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-08-06 22:21:51,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-08-06 22:21:51,369 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Thread1of1ForFork0 ======== [2021-08-06 22:21:51,373 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-06 22:21:51,374 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-08-06 22:21:51,407 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Thread1of1ForFork0Err0INUSE_VIOLATION [2021-08-06 22:21:51,408 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Thread1of1ForFork0Err1INUSE_VIOLATION [2021-08-06 22:21:51,414 INFO L308 ceAbstractionStarter]: Result for error location thread1Thread1of1ForFork0 was SAFE,SAFE (1/2) [2021-08-06 22:21:51,418 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-06 22:21:51,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 22:21:51,419 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-08-06 22:21:51,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2021-08-06 22:21:51,423 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-06 22:21:51,424 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-06 22:21:51,424 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-06 22:21:51,518 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION] === [2021-08-06 22:21:51,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 22:21:51,524 INFO L82 PathProgramCache]: Analyzing trace with hash 778685471, now seen corresponding path program 1 times [2021-08-06 22:21:51,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 22:21:51,532 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306396664] [2021-08-06 22:21:51,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 22:21:51,533 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 22:21:51,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 22:21:51,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 22:21:51,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 22:21:51,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306396664] [2021-08-06 22:21:51,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306396664] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 22:21:51,779 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 22:21:51,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-06 22:21:51,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724302824] [2021-08-06 22:21:51,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-06 22:21:51,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 22:21:51,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-06 22:21:51,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-06 22:21:51,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-06 22:21:51,800 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-06 22:21:51,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 22:21:51,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-06 22:21:51,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-06 22:21:51,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-06 22:21:51,863 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION] === [2021-08-06 22:21:51,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 22:21:51,864 INFO L82 PathProgramCache]: Analyzing trace with hash 176655939, now seen corresponding path program 1 times [2021-08-06 22:21:51,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 22:21:51,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391348891] [2021-08-06 22:21:51,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 22:21:51,866 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 22:21:51,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 22:21:52,185 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 22:21:52,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 22:21:52,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391348891] [2021-08-06 22:21:52,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391348891] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 22:21:52,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1734391191] [2021-08-06 22:21:52,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 22:21:52,186 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 22:21:52,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 22:21:52,188 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-06 22:21:52,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-06 22:21:52,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 22:21:52,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 21 conjunts are in the unsatisfiable core [2021-08-06 22:21:52,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-06 22:21:52,600 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-08-06 22:21:52,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 16 [2021-08-06 22:21:52,782 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 22:21:52,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1734391191] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 22:21:52,782 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-06 22:21:52,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 13 [2021-08-06 22:21:52,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534756415] [2021-08-06 22:21:52,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-08-06 22:21:52,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 22:21:52,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-06 22:21:52,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-08-06 22:21:52,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-06 22:21:52,786 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-06 22:21:52,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 13 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 22:21:52,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-06 22:21:52,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-06 22:21:52,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-06 22:21:52,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:21:52,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-06 22:21:53,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 22:21:53,165 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION] === [2021-08-06 22:21:53,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 22:21:53,165 INFO L82 PathProgramCache]: Analyzing trace with hash 200345125, now seen corresponding path program 2 times [2021-08-06 22:21:53,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 22:21:53,166 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563275458] [2021-08-06 22:21:53,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 22:21:53,166 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 22:21:53,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 22:21:53,229 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 22:21:53,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 22:21:53,229 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563275458] [2021-08-06 22:21:53,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563275458] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 22:21:53,229 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873299038] [2021-08-06 22:21:53,230 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-06 22:21:53,230 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 22:21:53,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 22:21:53,245 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-06 22:21:53,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-06 22:21:53,316 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-06 22:21:53,316 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-06 22:21:53,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-06 22:21:53,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-06 22:21:53,520 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 22:21:53,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873299038] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 22:21:53,521 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-06 22:21:53,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-08-06 22:21:53,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222204730] [2021-08-06 22:21:53,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-06 22:21:53,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 22:21:53,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-06 22:21:53,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-08-06 22:21:53,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-06 22:21:53,523 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-06 22:21:53,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 22:21:53,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-06 22:21:53,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:21:53,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-06 22:21:53,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-06 22:21:53,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:21:53,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:21:53,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-06 22:21:53,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 22:21:53,807 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION] === [2021-08-06 22:21:53,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 22:21:53,808 INFO L82 PathProgramCache]: Analyzing trace with hash -681683353, now seen corresponding path program 3 times [2021-08-06 22:21:53,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 22:21:53,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111110519] [2021-08-06 22:21:53,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 22:21:53,808 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 22:21:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 22:21:54,217 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 22:21:54,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 22:21:54,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111110519] [2021-08-06 22:21:54,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111110519] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 22:21:54,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570709526] [2021-08-06 22:21:54,217 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-06 22:21:54,218 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 22:21:54,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 22:21:54,218 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-06 22:21:54,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-06 22:21:54,290 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-08-06 22:21:54,291 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-06 22:21:54,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 34 conjunts are in the unsatisfiable core [2021-08-06 22:21:54,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-06 22:21:54,663 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-06 22:21:54,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 28 [2021-08-06 22:21:54,896 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 22:21:54,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570709526] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 22:21:54,896 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-06 22:21:54,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 24 [2021-08-06 22:21:54,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020066723] [2021-08-06 22:21:54,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-08-06 22:21:54,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 22:21:54,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-08-06 22:21:54,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2021-08-06 22:21:54,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-06 22:21:54,899 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-06 22:21:54,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 24 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 22:21:54,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-06 22:21:54,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:21:54,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:21:54,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-06 22:21:55,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-06 22:21:55,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:21:55,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:21:55,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-06 22:21:55,586 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-06 22:21:55,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 22:21:55,769 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION] === [2021-08-06 22:21:55,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 22:21:55,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1003674485, now seen corresponding path program 4 times [2021-08-06 22:21:55,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 22:21:55,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527971398] [2021-08-06 22:21:55,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 22:21:55,771 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 22:21:55,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 22:21:56,301 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 22:21:56,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 22:21:56,301 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527971398] [2021-08-06 22:21:56,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527971398] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 22:21:56,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1353490637] [2021-08-06 22:21:56,302 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-06 22:21:56,302 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 22:21:56,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 22:21:56,303 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-06 22:21:56,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-06 22:21:56,416 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-06 22:21:56,416 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-06 22:21:56,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 45 conjunts are in the unsatisfiable core [2021-08-06 22:21:56,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-06 22:21:57,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2021-08-06 22:21:57,185 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 22:21:57,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1353490637] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 22:21:57,185 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-06 22:21:57,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16] total 31 [2021-08-06 22:21:57,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690601683] [2021-08-06 22:21:57,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-08-06 22:21:57,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 22:21:57,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-08-06 22:21:57,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=804, Unknown=0, NotChecked=0, Total=930 [2021-08-06 22:21:57,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-06 22:21:57,187 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-06 22:21:57,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 31 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 22:21:57,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-06 22:21:57,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:21:57,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:21:57,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-08-06 22:21:57,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-06 22:21:58,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-06 22:21:58,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:21:58,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:21:58,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-06 22:21:58,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-06 22:21:58,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-08-06 22:21:58,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 22:21:58,323 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION] === [2021-08-06 22:21:58,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 22:21:58,324 INFO L82 PathProgramCache]: Analyzing trace with hash 1144191151, now seen corresponding path program 5 times [2021-08-06 22:21:58,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 22:21:58,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79968766] [2021-08-06 22:21:58,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 22:21:58,324 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 22:21:58,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 22:21:59,027 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 22:21:59,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 22:21:59,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79968766] [2021-08-06 22:21:59,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79968766] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 22:21:59,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758578415] [2021-08-06 22:21:59,027 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-06 22:21:59,027 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 22:21:59,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 22:21:59,028 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-06 22:21:59,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-08-06 22:21:59,153 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-08-06 22:21:59,153 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-06 22:21:59,154 WARN L261 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 57 conjunts are in the unsatisfiable core [2021-08-06 22:21:59,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-06 22:22:00,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2021-08-06 22:22:00,185 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 22:22:00,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1758578415] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 22:22:00,186 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-06 22:22:00,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 20] total 39 [2021-08-06 22:22:00,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176525898] [2021-08-06 22:22:00,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-08-06 22:22:00,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 22:22:00,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-08-06 22:22:00,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=1304, Unknown=0, NotChecked=0, Total=1482 [2021-08-06 22:22:00,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-06 22:22:00,188 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-06 22:22:00,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 1.358974358974359) internal successors, (53), 39 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 22:22:00,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-06 22:22:00,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:22:00,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:22:00,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-08-06 22:22:00,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-08-06 22:22:00,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-06 22:22:01,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-06 22:22:01,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:22:01,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:22:01,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-06 22:22:01,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-06 22:22:01,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-06 22:22:01,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-08-06 22:22:01,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 22:22:01,692 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION] === [2021-08-06 22:22:01,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 22:22:01,693 INFO L82 PathProgramCache]: Analyzing trace with hash 783209171, now seen corresponding path program 6 times [2021-08-06 22:22:01,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 22:22:01,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174320239] [2021-08-06 22:22:01,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 22:22:01,693 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 22:22:01,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 22:22:02,564 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 22:22:02,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 22:22:02,564 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174320239] [2021-08-06 22:22:02,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174320239] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 22:22:02,564 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604089059] [2021-08-06 22:22:02,564 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-06 22:22:02,564 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 22:22:02,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 22:22:02,565 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-06 22:22:02,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-06 22:22:02,721 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-08-06 22:22:02,721 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-06 22:22:02,722 WARN L261 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 69 conjunts are in the unsatisfiable core [2021-08-06 22:22:02,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-06 22:22:04,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:22:04,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:22:04,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:22:04,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:22:04,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:22:04,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:22:04,262 INFO L354 Elim1Store]: treesize reduction 162, result has 49.2 percent of original size [2021-08-06 22:22:04,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 6 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 30 case distinctions, treesize of input 59 treesize of output 183 [2021-08-06 22:22:09,478 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 22:22:09,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1604089059] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 22:22:09,478 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-06 22:22:09,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 49 [2021-08-06 22:22:09,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495273933] [2021-08-06 22:22:09,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-08-06 22:22:09,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 22:22:09,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-08-06 22:22:09,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=246, Invalid=2106, Unknown=0, NotChecked=0, Total=2352 [2021-08-06 22:22:09,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-06 22:22:09,480 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-06 22:22:09,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 1.2448979591836735) internal successors, (61), 49 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 22:22:09,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-06 22:22:09,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:22:09,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:22:09,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-08-06 22:22:09,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-08-06 22:22:09,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-08-06 22:22:09,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-06 22:22:11,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-06 22:22:11,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:22:11,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:22:11,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-06 22:22:11,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-06 22:22:11,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-06 22:22:11,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-06 22:22:11,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-08-06 22:22:11,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-08-06 22:22:11,343 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION] === [2021-08-06 22:22:11,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 22:22:11,343 INFO L82 PathProgramCache]: Analyzing trace with hash -555765001, now seen corresponding path program 7 times [2021-08-06 22:22:11,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 22:22:11,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729417551] [2021-08-06 22:22:11,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 22:22:11,344 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 22:22:11,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 22:22:12,382 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 16 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 22:22:12,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 22:22:12,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729417551] [2021-08-06 22:22:12,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729417551] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 22:22:12,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059996653] [2021-08-06 22:22:12,383 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-06 22:22:12,383 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 22:22:12,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 22:22:12,383 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-06 22:22:12,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-08-06 22:22:12,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 22:22:12,589 WARN L261 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 81 conjunts are in the unsatisfiable core [2021-08-06 22:22:12,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-06 22:22:13,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2021-08-06 22:22:14,083 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 22:22:14,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059996653] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 22:22:14,083 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-06 22:22:14,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 28] total 55 [2021-08-06 22:22:14,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902829591] [2021-08-06 22:22:14,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2021-08-06 22:22:14,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 22:22:14,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-08-06 22:22:14,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=318, Invalid=2652, Unknown=0, NotChecked=0, Total=2970 [2021-08-06 22:22:14,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-06 22:22:14,086 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-06 22:22:14,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 1.2545454545454546) internal successors, (69), 55 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 22:22:14,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-06 22:22:14,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:22:14,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:22:14,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-08-06 22:22:14,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-08-06 22:22:14,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-08-06 22:22:14,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-08-06 22:22:14,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-06 22:22:16,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-06 22:22:16,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:22:16,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:22:16,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-06 22:22:16,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-06 22:22:16,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-06 22:22:16,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-06 22:22:16,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-08-06 22:22:16,806 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-08-06 22:22:16,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 22:22:16,980 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION] === [2021-08-06 22:22:16,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 22:22:16,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1409587483, now seen corresponding path program 8 times [2021-08-06 22:22:16,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 22:22:16,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207924320] [2021-08-06 22:22:16,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 22:22:16,981 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 22:22:17,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 22:22:18,261 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 25 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 22:22:18,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 22:22:18,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207924320] [2021-08-06 22:22:18,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207924320] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 22:22:18,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504852165] [2021-08-06 22:22:18,261 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-06 22:22:18,261 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 22:22:18,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 22:22:18,262 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-06 22:22:18,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-08-06 22:22:18,508 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-06 22:22:18,508 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-06 22:22:18,509 WARN L261 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 94 conjunts are in the unsatisfiable core [2021-08-06 22:22:18,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-06 22:22:20,190 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-06 22:22:20,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 7 case distinctions, treesize of input 51 treesize of output 79 [2021-08-06 22:22:20,416 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 22:22:20,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504852165] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 22:22:20,417 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-06 22:22:20,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 33] total 64 [2021-08-06 22:22:20,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636538421] [2021-08-06 22:22:20,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2021-08-06 22:22:20,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 22:22:20,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-08-06 22:22:20,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=562, Invalid=3470, Unknown=0, NotChecked=0, Total=4032 [2021-08-06 22:22:20,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-06 22:22:20,420 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-06 22:22:20,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 1.203125) internal successors, (77), 64 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 22:22:20,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-06 22:22:20,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:22:20,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:22:20,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-08-06 22:22:20,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-08-06 22:22:20,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-08-06 22:22:20,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-08-06 22:22:20,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-08-06 22:22:20,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-06 22:22:23,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-06 22:22:23,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:22:23,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:22:23,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-06 22:22:23,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-06 22:22:23,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-06 22:22:23,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-06 22:22:23,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-08-06 22:22:23,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-08-06 22:22:23,281 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-08-06 22:22:23,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-08-06 22:22:23,461 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION] === [2021-08-06 22:22:23,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 22:22:23,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1365017919, now seen corresponding path program 9 times [2021-08-06 22:22:23,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 22:22:23,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306506306] [2021-08-06 22:22:23,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 22:22:23,462 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 22:22:23,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 22:22:24,887 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 36 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 22:22:24,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 22:22:24,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306506306] [2021-08-06 22:22:24,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306506306] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 22:22:24,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356888507] [2021-08-06 22:22:24,887 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-06 22:22:24,887 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 22:22:24,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 22:22:24,888 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-06 22:22:24,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-08-06 22:22:25,201 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-08-06 22:22:25,202 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-06 22:22:25,203 WARN L261 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 105 conjunts are in the unsatisfiable core [2021-08-06 22:22:25,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-06 22:22:27,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:22:27,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:22:27,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:22:27,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:22:27,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:22:27,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:22:28,277 INFO L354 Elim1Store]: treesize reduction 198, result has 63.8 percent of original size [2021-08-06 22:22:28,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 12 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 54 case distinctions, treesize of input 77 treesize of output 381 [2021-08-06 22:22:49,718 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 22:22:49,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356888507] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 22:22:49,718 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-06 22:22:49,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38] total 73 [2021-08-06 22:22:49,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941670373] [2021-08-06 22:22:49,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2021-08-06 22:22:49,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 22:22:49,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2021-08-06 22:22:49,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=443, Invalid=4813, Unknown=0, NotChecked=0, Total=5256 [2021-08-06 22:22:49,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-06 22:22:49,721 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-06 22:22:49,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 1.1643835616438356) internal successors, (85), 73 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 22:22:49,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-06 22:22:49,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:22:49,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:22:49,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-08-06 22:22:49,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-08-06 22:22:49,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-08-06 22:22:49,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-08-06 22:22:49,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-08-06 22:22:49,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-08-06 22:22:49,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-06 22:22:53,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-06 22:22:53,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:22:53,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:22:53,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-06 22:22:53,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-06 22:22:53,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-06 22:22:53,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-06 22:22:53,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-08-06 22:22:53,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-08-06 22:22:53,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-08-06 22:22:53,268 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-08-06 22:22:53,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-08-06 22:22:53,448 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION] === [2021-08-06 22:22:53,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 22:22:53,448 INFO L82 PathProgramCache]: Analyzing trace with hash 2116450147, now seen corresponding path program 10 times [2021-08-06 22:22:53,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 22:22:53,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432825570] [2021-08-06 22:22:53,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 22:22:53,449 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 22:22:53,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 22:22:55,189 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 49 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 22:22:55,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 22:22:55,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432825570] [2021-08-06 22:22:55,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432825570] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 22:22:55,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312838047] [2021-08-06 22:22:55,190 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-06 22:22:55,190 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 22:22:55,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 22:22:55,191 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-06 22:22:55,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-08-06 22:22:55,575 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-06 22:22:55,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-06 22:22:55,576 WARN L261 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 117 conjunts are in the unsatisfiable core [2021-08-06 22:22:55,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-06 22:22:58,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 27 [2021-08-06 22:22:58,266 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 22:22:58,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312838047] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 22:22:58,266 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-06 22:22:58,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 40] total 79 [2021-08-06 22:22:58,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502015325] [2021-08-06 22:22:58,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2021-08-06 22:22:58,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 22:22:58,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2021-08-06 22:22:58,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=618, Invalid=5544, Unknown=0, NotChecked=0, Total=6162 [2021-08-06 22:22:58,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-06 22:22:58,269 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-06 22:22:58,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 79 states have (on average 1.1772151898734178) internal successors, (93), 79 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 22:22:58,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-06 22:22:58,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:22:58,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:22:58,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-08-06 22:22:58,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-08-06 22:22:58,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-08-06 22:22:58,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-08-06 22:22:58,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-08-06 22:22:58,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-08-06 22:22:58,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-08-06 22:22:58,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-06 22:23:04,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-06 22:23:04,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:23:04,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:23:04,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-06 22:23:04,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-06 22:23:04,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-06 22:23:04,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-06 22:23:04,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-08-06 22:23:04,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-08-06 22:23:04,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-08-06 22:23:04,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-08-06 22:23:04,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-08-06 22:23:04,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-08-06 22:23:04,709 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION] === [2021-08-06 22:23:04,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 22:23:04,710 INFO L82 PathProgramCache]: Analyzing trace with hash -2053017721, now seen corresponding path program 11 times [2021-08-06 22:23:04,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 22:23:04,710 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351150110] [2021-08-06 22:23:04,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 22:23:04,710 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 22:23:04,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 22:23:06,642 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 64 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 22:23:06,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 22:23:06,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351150110] [2021-08-06 22:23:06,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351150110] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 22:23:06,643 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913030173] [2021-08-06 22:23:06,643 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-06 22:23:06,643 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 22:23:06,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 22:23:06,669 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-06 22:23:06,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-08-06 22:23:07,134 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2021-08-06 22:23:07,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-06 22:23:07,135 WARN L261 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 129 conjunts are in the unsatisfiable core [2021-08-06 22:23:07,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-06 22:23:10,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 29 [2021-08-06 22:23:10,405 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 22:23:10,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913030173] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 22:23:10,405 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-06 22:23:10,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 44] total 87 [2021-08-06 22:23:10,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126488329] [2021-08-06 22:23:10,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2021-08-06 22:23:10,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 22:23:10,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2021-08-06 22:23:10,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=742, Invalid=6740, Unknown=0, NotChecked=0, Total=7482 [2021-08-06 22:23:10,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-06 22:23:10,408 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-06 22:23:10,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 87 states have (on average 1.160919540229885) internal successors, (101), 87 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 22:23:10,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-06 22:23:10,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:23:10,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:23:10,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-08-06 22:23:10,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-08-06 22:23:10,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-08-06 22:23:10,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-08-06 22:23:10,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-08-06 22:23:10,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-08-06 22:23:10,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2021-08-06 22:23:10,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-08-06 22:23:10,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-06 22:23:16,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-06 22:23:16,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:23:16,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:23:16,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-06 22:23:16,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-06 22:23:16,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-06 22:23:16,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-06 22:23:16,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-08-06 22:23:16,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-08-06 22:23:16,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-08-06 22:23:16,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-08-06 22:23:16,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-08-06 22:23:16,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-08-06 22:23:16,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-08-06 22:23:16,616 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION] === [2021-08-06 22:23:16,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 22:23:16,617 INFO L82 PathProgramCache]: Analyzing trace with hash 923561387, now seen corresponding path program 12 times [2021-08-06 22:23:16,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 22:23:16,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075038109] [2021-08-06 22:23:16,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 22:23:16,617 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 22:23:16,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 22:23:18,859 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 81 proven. 161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 22:23:18,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 22:23:18,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075038109] [2021-08-06 22:23:18,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075038109] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 22:23:18,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479594056] [2021-08-06 22:23:18,860 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-06 22:23:18,860 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 22:23:18,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 22:23:18,861 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-06 22:23:18,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-08-06 22:23:19,381 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2021-08-06 22:23:19,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-06 22:23:19,383 WARN L261 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 141 conjunts are in the unsatisfiable core [2021-08-06 22:23:19,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-06 22:23:23,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:23:23,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:23:23,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:23:24,545 INFO L354 Elim1Store]: treesize reduction 138, result has 76.1 percent of original size [2021-08-06 22:23:24,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 31 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 60 case distinctions, treesize of input 91 treesize of output 477 [2021-08-06 22:23:29,481 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 22:23:29,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479594056] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 22:23:29,482 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-06 22:23:29,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 97 [2021-08-06 22:23:29,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377418021] [2021-08-06 22:23:29,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2021-08-06 22:23:29,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 22:23:29,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2021-08-06 22:23:29,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=837, Invalid=8475, Unknown=0, NotChecked=0, Total=9312 [2021-08-06 22:23:29,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-06 22:23:29,485 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-06 22:23:29,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 1.1237113402061856) internal successors, (109), 97 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 22:23:29,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-06 22:23:29,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:23:29,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:23:29,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-08-06 22:23:29,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-08-06 22:23:29,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-08-06 22:23:29,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-08-06 22:23:29,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-08-06 22:23:29,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-08-06 22:23:29,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2021-08-06 22:23:29,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-08-06 22:23:29,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2021-08-06 22:23:29,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-06 22:23:33,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-06 22:23:33,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:23:33,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:23:33,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-06 22:23:33,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-06 22:23:33,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-06 22:23:33,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-06 22:23:33,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-08-06 22:23:33,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-08-06 22:23:33,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-08-06 22:23:33,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-08-06 22:23:33,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-08-06 22:23:33,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-08-06 22:23:33,848 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-08-06 22:23:34,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 22:23:34,030 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION] === [2021-08-06 22:23:34,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 22:23:34,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1515818545, now seen corresponding path program 13 times [2021-08-06 22:23:34,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 22:23:34,031 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989636802] [2021-08-06 22:23:34,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 22:23:34,031 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 22:23:34,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 22:23:36,630 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 100 proven. 188 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 22:23:36,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 22:23:36,630 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989636802] [2021-08-06 22:23:36,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989636802] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 22:23:36,630 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226674174] [2021-08-06 22:23:36,631 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-06 22:23:36,631 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 22:23:36,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 22:23:36,632 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-06 22:23:36,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-08-06 22:23:37,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 22:23:37,256 WARN L261 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 153 conjunts are in the unsatisfiable core [2021-08-06 22:23:37,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-06 22:23:41,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 66 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 33 [2021-08-06 22:23:41,866 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 22:23:41,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226674174] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 22:23:41,866 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-06 22:23:41,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 52] total 103 [2021-08-06 22:23:41,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012526115] [2021-08-06 22:23:41,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2021-08-06 22:23:41,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 22:23:41,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2021-08-06 22:23:41,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1026, Invalid=9480, Unknown=0, NotChecked=0, Total=10506 [2021-08-06 22:23:41,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-06 22:23:41,870 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-06 22:23:41,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 103 states have (on average 1.1359223300970873) internal successors, (117), 103 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 22:23:41,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-06 22:23:41,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:23:41,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:23:41,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-08-06 22:23:41,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-08-06 22:23:41,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-08-06 22:23:41,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-08-06 22:23:41,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-08-06 22:23:41,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-08-06 22:23:41,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2021-08-06 22:23:41,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-08-06 22:23:41,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2021-08-06 22:23:41,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-08-06 22:23:41,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-06 22:23:54,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-06 22:23:54,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:23:54,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:23:54,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-06 22:23:54,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-06 22:23:54,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-06 22:23:54,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-06 22:23:54,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-08-06 22:23:54,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-08-06 22:23:54,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-08-06 22:23:54,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-08-06 22:23:54,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-08-06 22:23:54,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-08-06 22:23:54,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-08-06 22:23:54,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-08-06 22:23:55,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 22:23:55,062 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION] === [2021-08-06 22:23:55,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 22:23:55,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1219394547, now seen corresponding path program 14 times [2021-08-06 22:23:55,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 22:23:55,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892197651] [2021-08-06 22:23:55,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 22:23:55,062 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 22:23:55,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 22:23:58,074 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 121 proven. 217 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 22:23:58,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 22:23:58,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892197651] [2021-08-06 22:23:58,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892197651] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 22:23:58,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541552470] [2021-08-06 22:23:58,074 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-06 22:23:58,074 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 22:23:58,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 22:23:58,075 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-06 22:23:58,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-08-06 22:23:58,777 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-06 22:23:58,777 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-06 22:23:58,780 WARN L261 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 166 conjunts are in the unsatisfiable core [2021-08-06 22:23:58,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-06 22:24:03,648 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-06 22:24:03,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 78 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 13 case distinctions, treesize of input 87 treesize of output 139 [2021-08-06 22:24:03,981 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 0 proven. 338 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 22:24:03,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541552470] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 22:24:03,981 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-06 22:24:03,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 57] total 112 [2021-08-06 22:24:03,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641070590] [2021-08-06 22:24:03,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 112 states [2021-08-06 22:24:03,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 22:24:03,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2021-08-06 22:24:03,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1630, Invalid=10802, Unknown=0, NotChecked=0, Total=12432 [2021-08-06 22:24:03,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-06 22:24:03,988 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-06 22:24:03,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 112 states, 112 states have (on average 1.1160714285714286) internal successors, (125), 112 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 22:24:03,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-06 22:24:03,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:24:03,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:24:03,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-08-06 22:24:03,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-08-06 22:24:03,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-08-06 22:24:03,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-08-06 22:24:03,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-08-06 22:24:03,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-08-06 22:24:03,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2021-08-06 22:24:03,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-08-06 22:24:03,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2021-08-06 22:24:03,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2021-08-06 22:24:03,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-08-06 22:24:03,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-06 22:24:12,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-06 22:24:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:24:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:24:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-06 22:24:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-06 22:24:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-06 22:24:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-06 22:24:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-08-06 22:24:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-08-06 22:24:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-08-06 22:24:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-08-06 22:24:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-08-06 22:24:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-08-06 22:24:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-08-06 22:24:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-08-06 22:24:12,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-08-06 22:24:12,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-08-06 22:24:12,951 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION] === [2021-08-06 22:24:12,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 22:24:12,951 INFO L82 PathProgramCache]: Analyzing trace with hash 459508759, now seen corresponding path program 15 times [2021-08-06 22:24:12,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 22:24:12,952 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146128897] [2021-08-06 22:24:12,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 22:24:12,952 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 22:24:12,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 22:24:16,288 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 144 proven. 248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 22:24:16,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 22:24:16,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146128897] [2021-08-06 22:24:16,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146128897] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 22:24:16,289 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471372928] [2021-08-06 22:24:16,289 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-06 22:24:16,289 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 22:24:16,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 22:24:16,290 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-06 22:24:16,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-08-06 22:24:17,125 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2021-08-06 22:24:17,125 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-06 22:24:17,127 WARN L261 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 177 conjunts are in the unsatisfiable core [2021-08-06 22:24:17,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-06 22:24:24,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:24:24,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:24:24,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:24:24,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:24:24,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:24:24,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:24:24,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:24:24,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:24:24,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:24:24,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:24:24,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:24:24,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:24:24,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:24:24,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:24:24,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:24:24,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:24:24,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:24:24,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:24:24,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:24:24,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:24:24,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-06 22:24:28,243 INFO L354 Elim1Store]: treesize reduction 702, result has 60.0 percent of original size [2021-08-06 22:24:28,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 21 select indices, 21 select index equivalence classes, 42 disjoint index pairs (out of 210 index pairs), introduced 21 new quantified variables, introduced 168 case distinctions, treesize of input 125 treesize of output 1095 [2021-08-06 22:25:14,321 WARN L207 SmtUtils]: Spent 5.69 s on a formula simplification. DAG size of input: 1020 DAG size of output: 988 [2021-08-06 22:26:30,773 WARN L207 SmtUtils]: Spent 5.71 s on a formula simplification. DAG size of input: 1020 DAG size of output: 988 [2021-08-06 22:26:39,138 WARN L207 SmtUtils]: Spent 8.30 s on a formula simplification. DAG size of input: 1212 DAG size of output: 1182 [2021-08-06 22:28:28,636 WARN L207 SmtUtils]: Spent 8.27 s on a formula simplification. DAG size of input: 1212 DAG size of output: 1182 [2021-08-06 22:28:39,665 WARN L207 SmtUtils]: Spent 10.99 s on a formula simplification. DAG size of input: 1326 DAG size of output: 1297 [2021-08-06 22:30:16,800 WARN L207 SmtUtils]: Spent 11.07 s on a formula simplification. DAG size of input: 1326 DAG size of output: 1297 [2021-08-06 22:30:27,870 WARN L207 SmtUtils]: Spent 11.03 s on a formula simplification. DAG size of input: 1526 DAG size of output: 1453 [2021-08-06 22:31:56,528 WARN L207 SmtUtils]: Spent 11.05 s on a formula simplification. DAG size of input: 1526 DAG size of output: 1453 [2021-08-06 22:35:22,801 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 22:35:22,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [471372928] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 22:35:22,802 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-06 22:35:22,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 62] total 121 [2021-08-06 22:35:22,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776380530] [2021-08-06 22:35:22,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 121 states [2021-08-06 22:35:22,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 22:35:22,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 121 interpolants. [2021-08-06 22:35:22,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1115, Invalid=13405, Unknown=0, NotChecked=0, Total=14520 [2021-08-06 22:35:22,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-06 22:35:22,804 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-06 22:35:22,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 121 states, 121 states have (on average 1.115702479338843) internal successors, (135), 121 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 22:35:22,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-06 22:35:22,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:35:22,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:35:22,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-08-06 22:35:22,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-08-06 22:35:22,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-08-06 22:35:22,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-08-06 22:35:22,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-08-06 22:35:22,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-08-06 22:35:22,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2021-08-06 22:35:22,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-08-06 22:35:22,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2021-08-06 22:35:22,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2021-08-06 22:35:22,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-08-06 22:35:22,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2021-08-06 22:35:22,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-06 22:35:32,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-06 22:35:32,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:35:32,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 22:35:32,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-06 22:35:32,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-06 22:35:32,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-06 22:35:32,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-06 22:35:32,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-08-06 22:35:32,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-08-06 22:35:32,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-08-06 22:35:32,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-08-06 22:35:32,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-08-06 22:35:32,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-08-06 22:35:32,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-08-06 22:35:32,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-08-06 22:35:32,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-08-06 22:35:32,454 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2021-08-06 22:35:32,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-08-06 22:35:32,635 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION] === [2021-08-06 22:35:32,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 22:35:32,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1123769797, now seen corresponding path program 16 times [2021-08-06 22:35:32,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 22:35:32,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488657439] [2021-08-06 22:35:32,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 22:35:32,636 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 22:35:32,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 22:35:36,619 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 169 proven. 281 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 22:35:36,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 22:35:36,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488657439] [2021-08-06 22:35:36,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488657439] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 22:35:36,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206876435] [2021-08-06 22:35:36,620 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-06 22:35:36,620 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 22:35:36,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 22:35:36,620 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-06 22:35:36,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-08-06 22:35:37,550 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-06 22:35:37,550 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-06 22:35:37,552 WARN L261 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 189 conjunts are in the unsatisfiable core [2021-08-06 22:35:37,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2021-08-06 22:35:37,963 WARN L223 SmtUtils]: Removed 1 from assertion stack [2021-08-06 22:35:37,965 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-08-06 22:35:37,973 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-08-06 22:35:37,976 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-08-06 22:35:37,976 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-08-06 22:35:37,983 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2021-08-06 22:35:38,001 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-08-06 22:35:38,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-08-06 22:35:38,165 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 77 with TraceHistMax 15,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 0ms.. [2021-08-06 22:35:38,165 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-06 22:35:38,166 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION [2021-08-06 22:35:38,167 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was TIMEOUT,TIMEOUT,TIMEOUT (2/2) [2021-08-06 22:35:38,168 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-06 22:35:38,168 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-06 22:35:38,169 INFO L202 PluginConnector]: Adding new model parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.08 10:35:38 BasicIcfg [2021-08-06 22:35:38,169 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-06 22:35:38,169 INFO L168 Benchmark]: Toolchain (without parser) took 827322.63 ms. Allocated memory was 208.7 MB in the beginning and 1.0 GB in the end (delta: 802.2 MB). Free memory was 188.7 MB in the beginning and 724.5 MB in the end (delta: -535.8 MB). Peak memory consumption was 267.1 MB. Max. memory is 8.0 GB. [2021-08-06 22:35:38,169 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.16 ms. Allocated memory is still 208.7 MB. Free memory is still 189.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-06 22:35:38,169 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.72 ms. Allocated memory is still 208.7 MB. Free memory was 188.7 MB in the beginning and 187.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-06 22:35:38,169 INFO L168 Benchmark]: Boogie Preprocessor took 19.33 ms. Allocated memory is still 208.7 MB. Free memory was 187.1 MB in the beginning and 186.3 MB in the end (delta: 835.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-06 22:35:38,169 INFO L168 Benchmark]: RCFGBuilder took 278.16 ms. Allocated memory is still 208.7 MB. Free memory was 186.1 MB in the beginning and 170.3 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-08-06 22:35:38,170 INFO L168 Benchmark]: TraceAbstraction took 826991.83 ms. Allocated memory was 208.7 MB in the beginning and 1.0 GB in the end (delta: 802.2 MB). Free memory was 169.9 MB in the beginning and 724.5 MB in the end (delta: -554.6 MB). Peak memory consumption was 248.2 MB. Max. memory is 8.0 GB. [2021-08-06 22:35:38,170 INFO L339 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 0.16 ms. Allocated memory is still 208.7 MB. Free memory is still 189.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 26.72 ms. Allocated memory is still 208.7 MB. Free memory was 188.7 MB in the beginning and 187.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 19.33 ms. Allocated memory is still 208.7 MB. Free memory was 187.1 MB in the beginning and 186.3 MB in the end (delta: 835.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * RCFGBuilder took 278.16 ms. Allocated memory is still 208.7 MB. Free memory was 186.1 MB in the beginning and 170.3 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 826991.83 ms. Allocated memory was 208.7 MB in the beginning and 1.0 GB in the end (delta: 802.2 MB). Free memory was 169.9 MB in the beginning and 724.5 MB in the end (delta: -554.6 MB). Peak memory consumption was 248.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 31, positive: 25, positive conditional: 25, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 25, positive: 25, positive conditional: 25, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 25, positive: 25, positive conditional: 25, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 25, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 25, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 25, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 25, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 25, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 25, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 25, unknown conditional: 0, unknown unconditional: 25] , Statistics on independence cache: Total cache size (in pairs): 25, Positive cache size: 25, Positive conditional cache size: 0, Positive unconditional cache size: 25, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 6 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 5498, positive: 4323, positive conditional: 4323, positive unconditional: 0, negative: 1175, negative conditional: 1175, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4522, positive: 4323, positive conditional: 4323, positive unconditional: 0, negative: 199, negative conditional: 199, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 4522, positive: 4323, positive conditional: 4323, positive unconditional: 0, negative: 199, negative conditional: 199, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6554, positive: 4323, positive conditional: 4261, positive unconditional: 62, negative: 2231, negative conditional: 2032, negative unconditional: 199, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 6554, positive: 4323, positive conditional: 3409, positive unconditional: 914, negative: 2231, negative conditional: 739, negative unconditional: 1492, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6554, positive: 4323, positive conditional: 3409, positive unconditional: 914, negative: 2231, negative conditional: 739, negative unconditional: 1492, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 360, positive: 134, positive conditional: 99, positive unconditional: 35, negative: 226, negative conditional: 224, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 360, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 327, negative conditional: 0, negative unconditional: 327, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 327, positive: 101, positive conditional: 99, positive unconditional: 2, negative: 226, negative conditional: 224, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 619, positive: 205, positive conditional: 139, positive unconditional: 67, negative: 413, negative conditional: 403, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6554, positive: 4189, positive conditional: 3310, positive unconditional: 879, negative: 2005, negative conditional: 515, negative unconditional: 1490, unknown: 360, unknown conditional: 323, unknown unconditional: 37] , Statistics on independence cache: Total cache size (in pairs): 360, Positive cache size: 134, Positive conditional cache size: 99, Positive unconditional cache size: 35, Negative cache size: 226, Negative conditional cache size: 224, Negative unconditional cache size: 2, Eliminated conditions: 2145, Maximal queried relation: 15, Independence queries for same thread: 976 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 86]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 77 with TraceHistMax 15,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 0ms.. - TimeoutResultAtElement [Line: 78]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 77 with TraceHistMax 15,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 0ms.. - TimeoutResultAtElement [Line: 81]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 77 with TraceHistMax 15,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 0ms.. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thread1Thread1of1ForFork0 with 1 thread instances CFG has 9 procedures, 49 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 90.6ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.7ms, PartialOrderReductionTime: 20.7ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 49 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 826749.1ms, OverallIterations: 17, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.3ms, PartialOrderReductionTime: 61967.1ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 759, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 119.1ms SsaConstructionTime, 604.5ms SatisfiabilityAnalysisTime, 750708.1ms InterpolantComputationTime, 1348 NumberOfCodeBlocks, 1348 NumberOfCodeBlocksAsserted, 88 NumberOfCheckSat, 1317 ConstructedInterpolants, 76 QuantifiedInterpolants, 53021 SizeOfPredicates, 285 NumberOfNonLiveVariables, 2331 ConjunctsInSsa, 1395 ConjunctsInUnsatCore, 31 InterpolantComputations, 1 PerfectInterpolantSequences, 652/4070 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown