/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistent-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-5.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8a14012e553caa636f65c1137831746b6d9875cd-8a14012 [2021-08-07 17:55:18,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-07 17:55:18,454 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-07 17:55:18,496 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-07 17:55:18,557 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistent-NoLbe-Lockstep.epf [2021-08-07 17:55:18,584 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-07 17:55:18,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-07 17:55:18,585 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-07 17:55:18,585 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-07 17:55:18,586 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-07 17:55:18,586 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-07 17:55:18,587 INFO L138 SettingsManager]: * Use SBE=true [2021-08-07 17:55:18,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-07 17:55:18,587 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-07 17:55:18,587 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-07 17:55:18,587 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-07 17:55:18,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-07 17:55:18,587 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-07 17:55:18,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-07 17:55:18,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-07 17:55:18,588 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-07 17:55:18,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-07 17:55:18,588 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-07 17:55:18,588 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-07 17:55:18,588 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-07 17:55:18,589 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-07 17:55:18,589 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-07 17:55:18,589 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-07 17:55:18,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-07 17:55:18,589 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-07 17:55:18,589 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-07 17:55:18,590 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-07 17:55:18,590 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-07 17:55:18,590 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-08-07 17:55:18,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-07 17:55:18,590 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-07 17:55:18,590 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-08-07 17:55:18,590 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-07 17:55:18,591 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES [2021-08-07 17:55:18,591 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-07 17:55:18,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-07 17:55:18,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-07 17:55:18,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-07 17:55:18,908 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-07 17:55:18,909 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-07 17:55:18,910 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-5.wvr.bpl [2021-08-07 17:55:18,910 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-5.wvr.bpl' [2021-08-07 17:55:18,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-07 17:55:18,945 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-07 17:55:18,946 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-07 17:55:18,946 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-07 17:55:18,946 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-07 17:55:18,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "unroll-cond-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 05:55:18" (1/1) ... [2021-08-07 17:55:18,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "unroll-cond-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 05:55:18" (1/1) ... [2021-08-07 17:55:18,969 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-07 17:55:18,970 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-07 17:55:18,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-07 17:55:18,971 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-07 17:55:18,976 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "unroll-cond-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 05:55:18" (1/1) ... [2021-08-07 17:55:18,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "unroll-cond-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 05:55:18" (1/1) ... [2021-08-07 17:55:18,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "unroll-cond-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 05:55:18" (1/1) ... [2021-08-07 17:55:18,978 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "unroll-cond-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 05:55:18" (1/1) ... [2021-08-07 17:55:18,980 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "unroll-cond-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 05:55:18" (1/1) ... [2021-08-07 17:55:18,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "unroll-cond-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 05:55:18" (1/1) ... [2021-08-07 17:55:18,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "unroll-cond-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 05:55:18" (1/1) ... [2021-08-07 17:55:18,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-07 17:55:18,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-07 17:55:18,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-07 17:55:18,985 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-07 17:55:18,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "unroll-cond-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 05:55:18" (1/1) ... [2021-08-07 17:55:18,998 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-07 17:55:19,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 17:55:19,025 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-07 17:55:19,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-07 17:55:19,060 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-08-07 17:55:19,060 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-08-07 17:55:19,061 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-08-07 17:55:19,061 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-08-07 17:55:19,061 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-08-07 17:55:19,061 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-08-07 17:55:19,061 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-07 17:55:19,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-07 17:55:19,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-07 17:55:19,062 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-07 17:55:19,395 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-07 17:55:19,395 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-08-07 17:55:19,396 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-08-07 17:55:19,398 INFO L202 PluginConnector]: Adding new model unroll-cond-5.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.08 05:55:19 BoogieIcfgContainer [2021-08-07 17:55:19,398 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-07 17:55:19,400 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-07 17:55:19,400 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-07 17:55:19,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-07 17:55:19,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-cond-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 05:55:18" (1/2) ... [2021-08-07 17:55:19,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e3bab8b and model type unroll-cond-5.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.08 05:55:19, skipping insertion in model container [2021-08-07 17:55:19,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-cond-5.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.08 05:55:19" (2/2) ... [2021-08-07 17:55:19,404 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-cond-5.wvr.bpl [2021-08-07 17:55:19,408 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-07 17:55:19,409 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-07 17:55:19,409 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-07 17:55:19,409 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-07 17:55:19,438 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-08-07 17:55:19,482 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-07 17:55:19,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 17:55:19,484 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-08-07 17:55:19,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-08-07 17:55:19,512 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-07 17:55:19,518 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-07 17:55:19,518 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-07 17:55:19,563 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 17:55:19,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 17:55:19,567 INFO L82 PathProgramCache]: Analyzing trace with hash -2034124958, now seen corresponding path program 1 times [2021-08-07 17:55:19,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 17:55:19,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576009133] [2021-08-07 17:55:19,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 17:55:19,575 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 17:55:19,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 17:55:19,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 17:55:19,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 17:55:19,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576009133] [2021-08-07 17:55:19,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576009133] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-07 17:55:19,744 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-07 17:55:19,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-07 17:55:19,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724288774] [2021-08-07 17:55:19,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-07 17:55:19,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 17:55:19,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-07 17:55:19,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-07 17:55:19,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 17:55:19,762 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 17:55:19,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 17:55:19,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 17:55:19,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 17:55:19,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-07 17:55:19,827 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 17:55:19,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 17:55:19,830 INFO L82 PathProgramCache]: Analyzing trace with hash 279621813, now seen corresponding path program 1 times [2021-08-07 17:55:19,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 17:55:19,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010335625] [2021-08-07 17:55:19,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 17:55:19,831 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 17:55:19,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 17:55:24,169 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 17:55:24,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 17:55:24,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010335625] [2021-08-07 17:55:24,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010335625] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 17:55:24,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899348366] [2021-08-07 17:55:24,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 17:55:24,170 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 17:55:24,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 17:55:24,179 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) [2021-08-07 17:55:24,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-07 17:55:24,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 17:55:24,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-07 17:55:24,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2021-08-07 18:07:07,345 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 [2021-08-07 18:07:07,346 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-08-07 18:07:07,346 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-08-07 18:07:07,756 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-08-07 18:07:07,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-07 18:07:07,956 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 [2021-08-07 18:07:07,957 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 12 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-37-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. [2021-08-07 18:07:07,959 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-07 18:07:07,959 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-07 18:07:07,975 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-07 18:07:07,976 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-07 18:07:07,978 INFO L202 PluginConnector]: Adding new model unroll-cond-5.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.08 06:07:07 BasicIcfg [2021-08-07 18:07:07,978 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-07 18:07:07,979 INFO L168 Benchmark]: Toolchain (without parser) took 709033.02 ms. Allocated memory was 200.3 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 180.4 MB in the beginning and 7.3 GB in the end (delta: -7.1 GB). Peak memory consumption was 4.1 GB. Max. memory is 8.0 GB. [2021-08-07 18:07:07,979 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 200.3 MB. Free memory was 181.6 MB in the beginning and 181.5 MB in the end (delta: 84.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-07 18:07:07,982 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.16 ms. Allocated memory is still 200.3 MB. Free memory was 180.3 MB in the beginning and 178.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-07 18:07:07,984 INFO L168 Benchmark]: Boogie Preprocessor took 13.74 ms. Allocated memory is still 200.3 MB. Free memory was 178.8 MB in the beginning and 177.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-07 18:07:07,985 INFO L168 Benchmark]: RCFGBuilder took 413.21 ms. Allocated memory is still 200.3 MB. Free memory was 177.7 MB in the beginning and 154.7 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2021-08-07 18:07:07,985 INFO L168 Benchmark]: TraceAbstraction took 708578.20 ms. Allocated memory was 200.3 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 154.3 MB in the beginning and 7.3 GB in the end (delta: -7.2 GB). Peak memory consumption was 4.1 GB. Max. memory is 8.0 GB. [2021-08-07 18:07:07,986 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 0.14 ms. Allocated memory is still 200.3 MB. Free memory was 181.6 MB in the beginning and 181.5 MB in the end (delta: 84.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 23.16 ms. Allocated memory is still 200.3 MB. Free memory was 180.3 MB in the beginning and 178.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.74 ms. Allocated memory is still 200.3 MB. Free memory was 178.8 MB in the beginning and 177.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 413.21 ms. Allocated memory is still 200.3 MB. Free memory was 177.7 MB in the beginning and 154.7 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 708578.20 ms. Allocated memory was 200.3 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 154.3 MB in the beginning and 7.3 GB in the end (delta: -7.2 GB). Peak memory consumption was 4.1 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 82, positive: 71, positive conditional: 25, positive unconditional: 46, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 71, positive: 71, positive conditional: 25, positive unconditional: 46, 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: 71, positive: 71, positive conditional: 25, positive unconditional: 46, 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: 71, positive: 71, positive conditional: 16, positive unconditional: 55, 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: 71, positive: 71, positive conditional: 8, positive unconditional: 63, 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: 71, positive: 71, positive conditional: 8, positive unconditional: 63, 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: 46, positive: 46, positive conditional: 0, positive unconditional: 46, 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: 46, positive: 46, positive conditional: 0, positive unconditional: 46, 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: 71, positive: 25, positive conditional: 8, positive unconditional: 17, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 46, unknown conditional: 0, unknown unconditional: 46] , Statistics on independence cache: Total cache size (in pairs): 46, Positive cache size: 46, Positive conditional cache size: 0, Positive unconditional cache size: 46, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 8, Maximal queried relation: 0, Independence queries for same thread: 11 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 16, Number of persistent set computation: 10, Number of trivial persistent sets: 6, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 46, positive: 46, positive conditional: 0, positive unconditional: 46, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 82, positive: 71, positive conditional: 25, positive unconditional: 46, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 71, positive: 71, positive conditional: 25, positive unconditional: 46, 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: 71, positive: 71, positive conditional: 25, positive unconditional: 46, 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: 71, positive: 71, positive conditional: 16, positive unconditional: 55, 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: 71, positive: 71, positive conditional: 8, positive unconditional: 63, 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: 71, positive: 71, positive conditional: 8, positive unconditional: 63, 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: 46, positive: 46, positive conditional: 0, positive unconditional: 46, 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: 46, positive: 46, positive conditional: 0, positive unconditional: 46, 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: 71, positive: 25, positive conditional: 8, positive unconditional: 17, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 46, unknown conditional: 0, unknown unconditional: 46] , Statistics on independence cache: Total cache size (in pairs): 46, Positive cache size: 46, Positive conditional cache size: 0, Positive unconditional cache size: 46, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 8, Maximal queried relation: 0, Independence queries for same thread: 11 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 69]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 12 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-37-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - 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 12 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-37-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - 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 12 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-37-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 22 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 708490.6ms, OverallIterations: 2, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.2ms, PartialOrderReductionTime: 96.3ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 3.1ms SsaConstructionTime, 31.1ms SatisfiabilityAnalysisTime, 91.3ms InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 41 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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