/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-MCRwithDepranks-Lazy-NoForkJoinOpt.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/prod-cons-eq.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-02 04:23:28,740 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-02 04:23:28,750 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-02 04:23:28,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-02 04:23:28,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-02 04:23:28,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-02 04:23:28,808 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-02 04:23:28,809 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-02 04:23:28,810 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-02 04:23:28,810 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-02 04:23:28,812 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-02 04:23:28,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-02 04:23:28,815 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-02 04:23:28,816 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-02 04:23:28,817 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-02 04:23:28,817 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-02 04:23:28,820 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-02 04:23:28,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-02 04:23:28,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-02 04:23:28,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-02 04:23:28,829 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-MCRwithDepranks-Lazy-NoForkJoinOpt.epf [2022-03-02 04:23:28,846 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-02 04:23:28,846 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-02 04:23:28,846 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-02 04:23:28,846 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-02 04:23:28,847 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-02 04:23:28,847 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-02 04:23:28,847 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-02 04:23:28,848 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-02 04:23:28,848 INFO L138 SettingsManager]: * Use SBE=true [2022-03-02 04:23:28,848 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-02 04:23:28,849 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-02 04:23:28,849 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-02 04:23:28,849 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-02 04:23:28,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-02 04:23:28,849 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-02 04:23:28,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-02 04:23:28,849 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-02 04:23:28,849 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-02 04:23:28,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-02 04:23:28,850 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-02 04:23:28,850 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-02 04:23:28,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-02 04:23:28,850 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-02 04:23:28,850 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-02 04:23:28,850 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-02 04:23:28,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 04:23:28,851 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-02 04:23:28,851 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-02 04:23:28,851 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-02 04:23:28,851 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-02 04:23:28,851 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-02 04:23:28,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-02 04:23:28,851 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-02 04:23:28,851 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-02 04:23:28,852 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-02 04:23:28,852 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-02 04:23:28,852 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-02 04:23:28,852 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-02 04:23:29,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-02 04:23:29,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-02 04:23:29,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-02 04:23:29,080 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-02 04:23:29,081 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-02 04:23:29,082 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/prod-cons-eq.wvr.bpl [2022-03-02 04:23:29,082 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/prod-cons-eq.wvr.bpl' [2022-03-02 04:23:29,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-02 04:23:29,105 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-02 04:23:29,105 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-02 04:23:29,106 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-02 04:23:29,106 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-02 04:23:29,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 04:23:29" (1/1) ... [2022-03-02 04:23:29,123 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 04:23:29" (1/1) ... [2022-03-02 04:23:29,129 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-02 04:23:29,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-02 04:23:29,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-02 04:23:29,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-02 04:23:29,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-02 04:23:29,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 04:23:29" (1/1) ... [2022-03-02 04:23:29,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 04:23:29" (1/1) ... [2022-03-02 04:23:29,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 04:23:29" (1/1) ... [2022-03-02 04:23:29,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 04:23:29" (1/1) ... [2022-03-02 04:23:29,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 04:23:29" (1/1) ... [2022-03-02 04:23:29,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 04:23:29" (1/1) ... [2022-03-02 04:23:29,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 04:23:29" (1/1) ... [2022-03-02 04:23:29,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-02 04:23:29,148 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-02 04:23:29,148 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-02 04:23:29,148 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-02 04:23:29,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 04:23:29" (1/1) ... [2022-03-02 04:23:29,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 04:23:29,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 04:23:29,181 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) [2022-03-02 04:23:29,200 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 [2022-03-02 04:23:29,216 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-02 04:23:29,217 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-02 04:23:29,217 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-02 04:23:29,217 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-02 04:23:29,217 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-02 04:23:29,217 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-02 04:23:29,217 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-02 04:23:29,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-02 04:23:29,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-02 04:23:29,218 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-02 04:23:29,218 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-02 04:23:29,218 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-02 04:23:29,219 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-02 04:23:29,263 INFO L234 CfgBuilder]: Building ICFG [2022-03-02 04:23:29,264 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-02 04:23:29,401 INFO L275 CfgBuilder]: Performing block encoding [2022-03-02 04:23:29,415 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-02 04:23:29,415 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-02 04:23:29,417 INFO L202 PluginConnector]: Adding new model prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 04:23:29 BoogieIcfgContainer [2022-03-02 04:23:29,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-02 04:23:29,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-02 04:23:29,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-02 04:23:29,427 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-02 04:23:29,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 04:23:29" (1/2) ... [2022-03-02 04:23:29,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@516b362d and model type prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.03 04:23:29, skipping insertion in model container [2022-03-02 04:23:29,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 04:23:29" (2/2) ... [2022-03-02 04:23:29,435 INFO L111 eAbstractionObserver]: Analyzing ICFG prod-cons-eq.wvr.bpl [2022-03-02 04:23:29,439 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-02 04:23:29,440 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-02 04:23:29,440 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-02 04:23:29,440 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-02 04:23:29,513 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-02 04:23:29,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-02 04:23:29,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 04:23:29,569 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) [2022-03-02 04:23:29,570 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 [2022-03-02 04:23:29,593 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-02 04:23:29,600 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, 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, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=true [2022-03-02 04:23:29,600 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-02 04:23:29,720 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1002 transitions and produced 648 states. [2022-03-02 04:23:29,722 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 04:23:29,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 04:23:29,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1377187797, now seen corresponding path program 1 times [2022-03-02 04:23:29,734 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 04:23:29,734 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329384555] [2022-03-02 04:23:29,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 04:23:29,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 04:23:29,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 04:23:29,992 INFO L134 CoverageAnalysis]: Checked inductivity of 740 backedges. 247 proven. 0 refuted. 0 times theorem prover too weak. 493 trivial. 0 not checked. [2022-03-02 04:23:29,993 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 04:23:29,993 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329384555] [2022-03-02 04:23:29,994 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329384555] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-02 04:23:29,994 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-02 04:23:29,994 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-02 04:23:29,995 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833819169] [2022-03-02 04:23:29,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-02 04:23:30,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-02 04:23:30,001 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 04:23:30,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-02 04:23:30,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-02 04:23:30,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:23:30,026 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 04:23:30,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2022-03-02 04:23:30,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:23:30,139 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 764 transitions and produced 502 states. [2022-03-02 04:23:30,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 04:23:30,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-02 04:23:30,140 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 04:23:30,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 04:23:30,143 INFO L85 PathProgramCache]: Analyzing trace with hash 246046183, now seen corresponding path program 2 times [2022-03-02 04:23:30,143 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 04:23:30,144 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101491524] [2022-03-02 04:23:30,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 04:23:30,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 04:23:30,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 04:23:30,543 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 0 proven. 263 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2022-03-02 04:23:30,544 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 04:23:30,544 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101491524] [2022-03-02 04:23:30,545 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101491524] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 04:23:30,545 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645411044] [2022-03-02 04:23:30,545 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-02 04:23:30,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 04:23:30,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 04:23:30,547 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 04:23:30,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-02 04:23:30,624 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-02 04:23:30,625 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 04:23:30,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 21 conjunts are in the unsatisfiable core [2022-03-02 04:23:30,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 04:23:31,152 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 432 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-03-02 04:23:31,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 04:23:31,587 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 432 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-03-02 04:23:31,587 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1645411044] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 04:23:31,588 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 04:23:31,588 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 14] total 38 [2022-03-02 04:23:31,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166007212] [2022-03-02 04:23:31,590 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 04:23:31,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-03-02 04:23:31,591 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 04:23:31,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-03-02 04:23:31,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=332, Invalid=1150, Unknown=0, NotChecked=0, Total=1482 [2022-03-02 04:23:31,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:23:31,594 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 04:23:31,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 4.538461538461538) internal successors, (177), 38 states have internal predecessors, (177), 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) [2022-03-02 04:23:31,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 04:23:31,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:23:33,757 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1053 transitions and produced 694 states. [2022-03-02 04:23:33,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 04:23:33,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-03-02 04:23:33,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-02 04:23:33,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-03-02 04:23:33,964 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 04:23:33,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 04:23:33,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1724145486, now seen corresponding path program 3 times [2022-03-02 04:23:33,965 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 04:23:33,965 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325661352] [2022-03-02 04:23:33,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 04:23:33,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 04:23:34,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 04:23:34,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1305 backedges. 0 proven. 502 refuted. 0 times theorem prover too weak. 803 trivial. 0 not checked. [2022-03-02 04:23:34,223 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 04:23:34,223 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325661352] [2022-03-02 04:23:34,224 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325661352] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 04:23:34,225 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403750192] [2022-03-02 04:23:34,225 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-02 04:23:34,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 04:23:34,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 04:23:34,227 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) [2022-03-02 04:23:34,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-02 04:23:34,384 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2022-03-02 04:23:34,384 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 04:23:34,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 26 conjunts are in the unsatisfiable core [2022-03-02 04:23:34,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 04:23:35,106 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-02 04:23:35,107 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 28 treesize of output 100 [2022-03-02 04:23:35,277 INFO L134 CoverageAnalysis]: Checked inductivity of 1305 backedges. 0 proven. 468 refuted. 0 times theorem prover too weak. 837 trivial. 0 not checked. [2022-03-02 04:23:35,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 04:23:35,560 INFO L353 Elim1Store]: treesize reduction 5, result has 72.2 percent of original size [2022-03-02 04:23:35,564 INFO L387 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 18 treesize of output 17 [2022-03-02 04:23:36,013 INFO L353 Elim1Store]: treesize reduction 25, result has 93.1 percent of original size [2022-03-02 04:23:36,014 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 18 new quantified variables, introduced 45 case distinctions, treesize of input 23 treesize of output 371 [2022-03-02 04:23:52,848 INFO L134 CoverageAnalysis]: Checked inductivity of 1305 backedges. 18 proven. 450 refuted. 0 times theorem prover too weak. 837 trivial. 0 not checked. [2022-03-02 04:23:52,848 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403750192] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 04:23:52,849 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 04:23:52,849 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 15] total 27 [2022-03-02 04:23:52,849 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302983557] [2022-03-02 04:23:52,849 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 04:23:52,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-02 04:23:52,850 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 04:23:52,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-02 04:23:52,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-03-02 04:23:52,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:23:52,851 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 04:23:52,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.7142857142857144) internal successors, (104), 27 states have internal predecessors, (104), 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) [2022-03-02 04:23:52,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 04:23:52,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-03-02 04:23:52,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:23:53,759 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1041 transitions and produced 721 states. [2022-03-02 04:23:53,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 04:23:53,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-03-02 04:23:53,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-02 04:23:53,787 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-02 04:23:53,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 04:23:53,961 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 04:23:53,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 04:23:53,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1853733775, now seen corresponding path program 4 times [2022-03-02 04:23:53,962 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 04:23:53,962 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442398109] [2022-03-02 04:23:53,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 04:23:53,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 04:23:54,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 04:23:54,305 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 0 proven. 589 refuted. 0 times theorem prover too weak. 737 trivial. 0 not checked. [2022-03-02 04:23:54,305 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 04:23:54,305 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442398109] [2022-03-02 04:23:54,305 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442398109] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 04:23:54,306 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885735694] [2022-03-02 04:23:54,306 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-02 04:23:54,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 04:23:54,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 04:23:54,307 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) [2022-03-02 04:23:54,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-02 04:23:54,395 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-02 04:23:54,396 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 04:23:54,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 40 conjunts are in the unsatisfiable core [2022-03-02 04:23:54,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 04:23:55,056 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 1042 proven. 197 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-03-02 04:23:55,057 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 04:23:55,427 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 1042 proven. 197 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-03-02 04:23:55,427 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885735694] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 04:23:55,427 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 04:23:55,427 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 22, 22] total 47 [2022-03-02 04:23:55,428 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240456011] [2022-03-02 04:23:55,428 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 04:23:55,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-03-02 04:23:55,429 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 04:23:55,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-03-02 04:23:55,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=475, Invalid=1781, Unknown=0, NotChecked=0, Total=2256 [2022-03-02 04:23:55,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:23:55,431 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 04:23:55,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 4.979166666666667) internal successors, (239), 47 states have internal predecessors, (239), 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) [2022-03-02 04:23:55,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 04:23:55,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-03-02 04:23:55,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-03-02 04:23:55,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:23:58,737 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1415 transitions and produced 903 states. [2022-03-02 04:23:58,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 04:23:58,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-03-02 04:23:58,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-02 04:23:58,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-03-02 04:23:58,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-02 04:23:58,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 04:23:58,965 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 04:23:58,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 04:23:58,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1806342716, now seen corresponding path program 5 times [2022-03-02 04:23:58,966 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 04:23:58,966 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101945450] [2022-03-02 04:23:58,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 04:23:58,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 04:23:59,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 04:23:59,291 INFO L134 CoverageAnalysis]: Checked inductivity of 2511 backedges. 0 proven. 924 refuted. 0 times theorem prover too weak. 1587 trivial. 0 not checked. [2022-03-02 04:23:59,292 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 04:23:59,292 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101945450] [2022-03-02 04:23:59,294 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101945450] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 04:23:59,294 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124659566] [2022-03-02 04:23:59,294 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-02 04:23:59,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 04:23:59,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 04:23:59,300 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) [2022-03-02 04:23:59,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-02 04:23:59,466 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2022-03-02 04:23:59,467 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 04:23:59,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 56 conjunts are in the unsatisfiable core [2022-03-02 04:23:59,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 04:24:00,533 INFO L134 CoverageAnalysis]: Checked inductivity of 2511 backedges. 1898 proven. 501 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-03-02 04:24:00,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 04:24:00,993 INFO L134 CoverageAnalysis]: Checked inductivity of 2511 backedges. 1898 proven. 501 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-03-02 04:24:00,994 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124659566] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 04:24:00,994 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 04:24:00,994 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 30, 30] total 57 [2022-03-02 04:24:00,994 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182065772] [2022-03-02 04:24:00,994 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 04:24:00,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-03-02 04:24:00,995 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 04:24:00,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-03-02 04:24:00,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=747, Invalid=2559, Unknown=0, NotChecked=0, Total=3306 [2022-03-02 04:24:00,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:24:00,997 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 04:24:00,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 5.086206896551724) internal successors, (295), 57 states have internal predecessors, (295), 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) [2022-03-02 04:24:00,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 04:24:00,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-03-02 04:24:00,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-03-02 04:24:00,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 99 states. [2022-03-02 04:24:00,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:24:05,110 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1716 transitions and produced 1084 states. [2022-03-02 04:24:05,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 04:24:05,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-03-02 04:24:05,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-02 04:24:05,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-03-02 04:24:05,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-03-02 04:24:05,130 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-02 04:24:05,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 04:24:05,311 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 04:24:05,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 04:24:05,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1014833529, now seen corresponding path program 6 times [2022-03-02 04:24:05,312 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 04:24:05,312 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753138630] [2022-03-02 04:24:05,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 04:24:05,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 04:24:05,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 04:24:05,700 INFO L134 CoverageAnalysis]: Checked inductivity of 4084 backedges. 0 proven. 1323 refuted. 0 times theorem prover too weak. 2761 trivial. 0 not checked. [2022-03-02 04:24:05,700 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 04:24:05,701 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753138630] [2022-03-02 04:24:05,701 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753138630] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 04:24:05,701 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857958652] [2022-03-02 04:24:05,701 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-02 04:24:05,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 04:24:05,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 04:24:05,708 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) [2022-03-02 04:24:05,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-02 04:24:06,048 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 39 check-sat command(s) [2022-03-02 04:24:06,048 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 04:24:06,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 38 conjunts are in the unsatisfiable core [2022-03-02 04:24:06,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 04:24:07,062 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-02 04:24:07,063 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 15 new quantified variables, introduced 28 case distinctions, treesize of input 40 treesize of output 253 [2022-03-02 04:24:08,106 INFO L134 CoverageAnalysis]: Checked inductivity of 4084 backedges. 0 proven. 1263 refuted. 0 times theorem prover too weak. 2821 trivial. 0 not checked. [2022-03-02 04:24:08,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 04:24:08,510 INFO L353 Elim1Store]: treesize reduction 5, result has 79.2 percent of original size [2022-03-02 04:24:08,510 INFO L387 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 24 treesize of output 23 [2022-03-02 04:24:10,301 INFO L353 Elim1Store]: treesize reduction 40, result has 95.8 percent of original size [2022-03-02 04:24:10,301 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 30 new quantified variables, introduced 120 case distinctions, treesize of input 35 treesize of output 980 Received shutdown request... [2022-03-02 04:37:07,538 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-03-02 04:37:07,540 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-02 04:37:07,563 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 [2022-03-02 04:37:07,563 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-02 04:37:07,565 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 [2022-03-02 04:37:07,567 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-02 04:37:07,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 04:37:07,754 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 266 with TraceHistMax 39,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 23ms.. [2022-03-02 04:37:07,755 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-02 04:37:07,755 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-02 04:37:07,755 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-02 04:37:07,760 INFO L732 BasicCegarLoop]: Path program histogram: [6] [2022-03-02 04:37:07,762 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-02 04:37:07,762 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-02 04:37:07,764 INFO L202 PluginConnector]: Adding new model prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.03 04:37:07 BasicIcfg [2022-03-02 04:37:07,764 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-02 04:37:07,765 INFO L158 Benchmark]: Toolchain (without parser) took 818659.82ms. Allocated memory was 198.2MB in the beginning and 858.8MB in the end (delta: 660.6MB). Free memory was 162.2MB in the beginning and 430.4MB in the end (delta: -268.1MB). Peak memory consumption was 545.6MB. Max. memory is 8.0GB. [2022-03-02 04:37:07,765 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 198.2MB. Free memory is still 163.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-02 04:37:07,765 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.99ms. Allocated memory is still 198.2MB. Free memory was 162.2MB in the beginning and 160.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-02 04:37:07,765 INFO L158 Benchmark]: Boogie Preprocessor took 15.97ms. Allocated memory is still 198.2MB. Free memory was 160.7MB in the beginning and 159.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-02 04:37:07,766 INFO L158 Benchmark]: RCFGBuilder took 269.43ms. Allocated memory is still 198.2MB. Free memory was 159.6MB in the beginning and 149.8MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-02 04:37:07,766 INFO L158 Benchmark]: TraceAbstraction took 818345.43ms. Allocated memory was 198.2MB in the beginning and 858.8MB in the end (delta: 660.6MB). Free memory was 149.2MB in the beginning and 430.4MB in the end (delta: -281.2MB). Peak memory consumption was 533.1MB. Max. memory is 8.0GB. [2022-03-02 04:37:07,767 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 0.11ms. Allocated memory is still 198.2MB. Free memory is still 163.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.99ms. Allocated memory is still 198.2MB. Free memory was 162.2MB in the beginning and 160.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.97ms. Allocated memory is still 198.2MB. Free memory was 160.7MB in the beginning and 159.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 269.43ms. Allocated memory is still 198.2MB. Free memory was 159.6MB in the beginning and 149.8MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 818345.43ms. Allocated memory was 198.2MB in the beginning and 858.8MB in the end (delta: 660.6MB). Free memory was 149.2MB in the beginning and 430.4MB in the end (delta: -281.2MB). Peak memory consumption was 533.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.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] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.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] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.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.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: 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] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 266 with TraceHistMax 39,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 23ms.. - TimeoutResultAtElement [Line: 63]: 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 266 with TraceHistMax 39,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 23ms.. - TimeoutResultAtElement [Line: 64]: 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 266 with TraceHistMax 39,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 23ms.. - TimeoutResultAtElement [Line: 63]: 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 266 with TraceHistMax 39,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 23ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 47 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 818.2s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 10.7s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 323, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 23.2s InterpolantComputationTime, 1373 NumberOfCodeBlocks, 1365 NumberOfCodeBlocksAsserted, 62 NumberOfCheckSat, 1990 ConstructedInterpolants, 16 QuantifiedInterpolants, 15052 SizeOfPredicates, 7 NumberOfNonLiveVariables, 1480 ConjunctsInSsa, 143 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 13009/17603 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