/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-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/counter-determinism.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-20 11:31:24,527 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 11:31:24,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 11:31:24,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 11:31:24,566 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 11:31:24,569 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 11:31:24,570 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 11:31:24,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 11:31:24,574 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 11:31:24,577 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 11:31:24,577 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 11:31:24,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 11:31:24,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 11:31:24,580 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 11:31:24,581 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 11:31:24,583 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 11:31:24,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 11:31:24,584 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 11:31:24,586 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 11:31:24,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 11:31:24,591 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 11:31:24,592 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 11:31:24,593 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 11:31:24,593 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 11:31:24,598 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-20 11:31:24,604 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 11:31:24,605 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 11:31:24,605 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 11:31:24,606 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-MCRwithoutDepranks-Lazy.epf [2022-02-20 11:31:24,630 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 11:31:24,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 11:31:24,631 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 11:31:24,631 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 11:31:24,632 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 11:31:24,632 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 11:31:24,632 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 11:31:24,632 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 11:31:24,633 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 11:31:24,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 11:31:24,633 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 11:31:24,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 11:31:24,634 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 11:31:24,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 11:31:24,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 11:31:24,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 11:31:24,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 11:31:24,634 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 11:31:24,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 11:31:24,634 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 11:31:24,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 11:31:24,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 11:31:24,635 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 11:31:24,635 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-20 11:31:24,636 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 11:31:24,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 11:31:24,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 11:31:24,636 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-20 11:31:24,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 11:31:24,636 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 11:31:24,636 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 11:31:24,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 11:31:24,637 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 11:31:24,637 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-20 11:31:24,637 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 11:31:24,637 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-02-20 11:31:24,637 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-20 11:31:24,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 11:31:24,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 11:31:24,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 11:31:24,829 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-20 11:31:24,830 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-20 11:31:24,831 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/counter-determinism.wvr.bpl [2022-02-20 11:31:24,831 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/counter-determinism.wvr.bpl' [2022-02-20 11:31:24,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 11:31:24,858 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-20 11:31:24,859 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 11:31:24,859 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 11:31:24,860 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 11:31:24,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 11:31:24" (1/1) ... [2022-02-20 11:31:24,872 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 11:31:24" (1/1) ... [2022-02-20 11:31:24,876 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-20 11:31:24,877 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 11:31:24,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 11:31:24,878 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 11:31:24,879 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 11:31:24,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 11:31:24" (1/1) ... [2022-02-20 11:31:24,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 11:31:24" (1/1) ... [2022-02-20 11:31:24,885 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 11:31:24" (1/1) ... [2022-02-20 11:31:24,886 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 11:31:24" (1/1) ... [2022-02-20 11:31:24,889 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 11:31:24" (1/1) ... [2022-02-20 11:31:24,892 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 11:31:24" (1/1) ... [2022-02-20 11:31:24,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 11:31:24" (1/1) ... [2022-02-20 11:31:24,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 11:31:24,896 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 11:31:24,896 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 11:31:24,896 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 11:31:24,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 11:31:24" (1/1) ... [2022-02-20 11:31:24,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 11:31:24,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 11:31:24,937 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) [2022-02-20 11:31:24,942 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 [2022-02-20 11:31:24,966 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-20 11:31:24,966 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-20 11:31:24,966 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-20 11:31:24,966 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-20 11:31:24,966 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-20 11:31:24,966 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-20 11:31:24,967 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-20 11:31:24,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 11:31:24,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 11:31:24,967 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-20 11:31:24,967 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-20 11:31:24,967 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-20 11:31:24,967 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-02-20 11:31:24,968 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-20 11:31:24,968 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-20 11:31:24,969 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-20 11:31:25,018 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 11:31:25,020 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 11:31:25,158 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 11:31:25,188 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 11:31:25,188 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 11:31:25,191 INFO L202 PluginConnector]: Adding new model counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 11:31:25 BoogieIcfgContainer [2022-02-20 11:31:25,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 11:31:25,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 11:31:25,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 11:31:25,203 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 11:31:25,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 11:31:24" (1/2) ... [2022-02-20 11:31:25,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc640d6 and model type counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 11:31:25, skipping insertion in model container [2022-02-20 11:31:25,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 11:31:25" (2/2) ... [2022-02-20 11:31:25,207 INFO L111 eAbstractionObserver]: Analyzing ICFG counter-determinism.wvr.bpl [2022-02-20 11:31:25,211 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-20 11:31:25,211 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 11:31:25,211 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 11:31:25,211 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-20 11:31:25,270 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-20 11:31:25,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-20 11:31:25,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 11:31:25,354 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) [2022-02-20 11:31:25,387 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 [2022-02-20 11:31:25,396 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 11:31:25,406 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=true, mMcrOverapproximateWrwc=true [2022-02-20 11:31:25,406 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-20 11:31:58,206 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 10285 transitions and produced 9234 states. [2022-02-20 11:31:58,209 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-20 11:31:58,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 11:31:58,213 INFO L85 PathProgramCache]: Analyzing trace with hash 343465227, now seen corresponding path program 1 times [2022-02-20 11:31:58,218 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 11:31:58,219 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678790388] [2022-02-20 11:31:58,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 11:31:58,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 11:32:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 11:35:13,748 INFO L134 CoverageAnalysis]: Checked inductivity of 408362 backedges. 369938 proven. 38214 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-02-20 11:35:13,749 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 11:35:13,749 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678790388] [2022-02-20 11:35:13,750 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678790388] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 11:35:13,750 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725452149] [2022-02-20 11:35:13,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 11:35:13,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 11:35:13,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 11:35:13,752 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) [2022-02-20 11:35:13,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-20 11:35:15,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 11:35:15,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 4837 conjuncts, 632 conjunts are in the unsatisfiable core [2022-02-20 11:35:15,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 11:38:58,972 INFO L134 CoverageAnalysis]: Checked inductivity of 408362 backedges. 24851 proven. 382745 refuted. 0 times theorem prover too weak. 766 trivial. 0 not checked. [2022-02-20 11:38:58,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 11:43:17,975 INFO L134 CoverageAnalysis]: Checked inductivity of 408362 backedges. 362698 proven. 44858 refuted. 0 times theorem prover too weak. 806 trivial. 0 not checked. [2022-02-20 11:43:17,976 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725452149] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 11:43:17,976 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 11:43:17,977 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [754, 632, 592] total 1975 [2022-02-20 11:43:17,978 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633063620] [2022-02-20 11:43:17,979 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 11:43:17,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 1976 states [2022-02-20 11:43:17,995 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 11:43:18,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 1976 interpolants. [2022-02-20 11:43:18,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=738296, Invalid=3164304, Unknown=0, NotChecked=0, Total=3902600 [2022-02-20 11:43:18,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 11:43:18,715 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 11:43:18,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 1976 states, 1976 states have (on average 2.410425101214575) internal successors, (4763), 1975 states have internal predecessors, (4763), 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) [2022-02-20 11:43:18,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-02-20 11:45:32,440 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 [2022-02-20 11:45:32,452 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-20 11:45:32,452 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 [2022-02-20 11:45:32,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-20 11:45:32,848 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,SelfDestructingSolverStorable0 [2022-02-20 11:45:32,848 WARN L594 AbstractCegarLoop]: Verification canceled: while PredicateComparison was comparing new predicate (quantifier-free) to 2250 known predicates. [2022-02-20 11:45:32,851 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-02-20 11:45:32,851 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-02-20 11:45:32,851 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-02-20 11:45:32,851 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-02-20 11:45:32,852 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-02-20 11:45:32,859 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-02-20 11:45:32,861 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-20 11:45:32,861 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 11:45:32,863 INFO L202 PluginConnector]: Adding new model counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 11:45:32 BasicIcfg [2022-02-20 11:45:32,863 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 11:45:32,864 INFO L158 Benchmark]: Toolchain (without parser) took 848005.14ms. Allocated memory was 179.3MB in the beginning and 7.1GB in the end (delta: 7.0GB). Free memory was 140.0MB in the beginning and 4.6GB in the end (delta: -4.5GB). Peak memory consumption was 2.5GB. Max. memory is 8.0GB. [2022-02-20 11:45:32,864 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 179.3MB. Free memory is still 141.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-20 11:45:32,864 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.97ms. Allocated memory is still 179.3MB. Free memory was 139.9MB in the beginning and 138.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-20 11:45:32,865 INFO L158 Benchmark]: Boogie Preprocessor took 17.10ms. Allocated memory is still 179.3MB. Free memory was 138.3MB in the beginning and 137.4MB in the end (delta: 899.6kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-20 11:45:32,865 INFO L158 Benchmark]: RCFGBuilder took 295.14ms. Allocated memory is still 179.3MB. Free memory was 137.3MB in the beginning and 127.4MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-20 11:45:32,865 INFO L158 Benchmark]: TraceAbstraction took 847670.40ms. Allocated memory was 179.3MB in the beginning and 7.1GB in the end (delta: 7.0GB). Free memory was 126.9MB in the beginning and 4.6GB in the end (delta: -4.5GB). Peak memory consumption was 2.4GB. Max. memory is 8.0GB. [2022-02-20 11:45:32,874 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 0.09ms. Allocated memory is still 179.3MB. Free memory is still 141.1MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 17.97ms. Allocated memory is still 179.3MB. Free memory was 139.9MB in the beginning and 138.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.10ms. Allocated memory is still 179.3MB. Free memory was 138.3MB in the beginning and 137.4MB in the end (delta: 899.6kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 295.14ms. Allocated memory is still 179.3MB. Free memory was 137.3MB in the beginning and 127.4MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 847670.40ms. Allocated memory was 179.3MB in the beginning and 7.1GB in the end (delta: 7.0GB). Free memory was 126.9MB in the beginning and 4.6GB in the end (delta: -4.5GB). Peak memory consumption was 2.4GB. 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: 83]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 2250 known predicates. - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 2250 known predicates. - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 2250 known predicates. - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 2250 known predicates. - TimeoutResultAtElement [Line: 76]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 2250 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 56 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 847.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 166.7s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 277, 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: 0.2s SsaConstructionTime, 4.6s SatisfiabilityAnalysisTime, 674.7s InterpolantComputationTime, 3650 NumberOfCodeBlocks, 3650 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5472 ConstructedInterpolants, 0 QuantifiedInterpolants, 51430 SizeOfPredicates, 5 NumberOfNonLiveVariables, 4837 ConjunctsInSsa, 632 ConjunctsInUnsatCore, 3 InterpolantComputations, 0 PerfectInterpolantSequences, 759269/1225086 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