/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-NewStatesSleepPersistentFixedOrder-NoLbe-Random7777.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier-loop.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-23 09:24:28,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-23 09:24:28,169 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-23 09:24:28,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-23 09:24:28,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-23 09:24:28,261 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-23 09:24:28,262 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-23 09:24:28,262 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-NewStatesSleepPersistentFixedOrder-NoLbe-Random7777.epf [2021-08-23 09:24:28,296 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-23 09:24:28,296 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-23 09:24:28,297 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-23 09:24:28,297 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-23 09:24:28,299 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-23 09:24:28,299 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-23 09:24:28,300 INFO L138 SettingsManager]: * Use SBE=true [2021-08-23 09:24:28,300 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-23 09:24:28,300 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-23 09:24:28,300 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-23 09:24:28,301 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-23 09:24:28,301 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-23 09:24:28,301 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-23 09:24:28,301 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-23 09:24:28,301 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-23 09:24:28,302 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-23 09:24:28,302 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-23 09:24:28,302 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-23 09:24:28,302 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-23 09:24:28,302 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-23 09:24:28,302 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-23 09:24:28,302 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-23 09:24:28,303 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-23 09:24:28,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-23 09:24:28,303 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-23 09:24:28,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-23 09:24:28,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-23 09:24:28,303 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-23 09:24:28,303 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-08-23 09:24:28,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-23 09:24:28,304 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-23 09:24:28,304 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-08-23 09:24:28,304 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-23 09:24:28,304 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-08-23 09:24:28,304 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-08-23 09:24:28,304 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-23 09:24:28,305 INFO L138 SettingsManager]: * Random seed used by POR DFS order=7777 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-23 09:24:28,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-23 09:24:28,611 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-23 09:24:28,613 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-23 09:24:28,615 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-23 09:24:28,616 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-23 09:24:28,616 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier-loop.wvr.bpl [2021-08-23 09:24:28,617 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier-loop.wvr.bpl' [2021-08-23 09:24:28,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-23 09:24:28,653 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-23 09:24:28,654 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-23 09:24:28,654 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-23 09:24:28,654 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-23 09:24:28,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.08 09:24:28" (1/1) ... [2021-08-23 09:24:28,670 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.08 09:24:28" (1/1) ... [2021-08-23 09:24:28,676 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-23 09:24:28,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-23 09:24:28,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-23 09:24:28,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-23 09:24:28,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.08 09:24:28" (1/1) ... [2021-08-23 09:24:28,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.08 09:24:28" (1/1) ... [2021-08-23 09:24:28,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.08 09:24:28" (1/1) ... [2021-08-23 09:24:28,684 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.08 09:24:28" (1/1) ... [2021-08-23 09:24:28,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.08 09:24:28" (1/1) ... [2021-08-23 09:24:28,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.08 09:24:28" (1/1) ... [2021-08-23 09:24:28,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.08 09:24:28" (1/1) ... [2021-08-23 09:24:28,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-23 09:24:28,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-23 09:24:28,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-23 09:24:28,692 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-23 09:24:28,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.08 09:24:28" (1/1) ... [2021-08-23 09:24:28,699 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-23 09:24:28,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-23 09:24:28,718 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) [2021-08-23 09:24:28,722 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 [2021-08-23 09:24:28,753 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-08-23 09:24:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-08-23 09:24:28,754 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-08-23 09:24:28,754 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-08-23 09:24:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-08-23 09:24:28,754 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-08-23 09:24:28,755 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-23 09:24:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-23 09:24:28,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-23 09:24:28,756 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-08-23 09:24:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-08-23 09:24:28,756 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-08-23 09:24:28,756 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-08-23 09:24:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-08-23 09:24:28,757 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-08-23 09:24:28,757 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2021-08-23 09:24:28,759 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-08-23 09:24:28,759 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-08-23 09:24:28,760 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2021-08-23 09:24:28,760 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2021-08-23 09:24:28,760 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2021-08-23 09:24:28,761 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-23 09:24:28,993 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-23 09:24:28,993 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-08-23 09:24:28,995 INFO L202 PluginConnector]: Adding new model barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 09:24:28 BoogieIcfgContainer [2021-08-23 09:24:28,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-23 09:24:28,997 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-23 09:24:28,997 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-23 09:24:28,999 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-23 09:24:28,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.08 09:24:28" (1/2) ... [2021-08-23 09:24:29,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@141799c9 and model type barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.08 09:24:29, skipping insertion in model container [2021-08-23 09:24:29,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 09:24:28" (2/2) ... [2021-08-23 09:24:29,001 INFO L111 eAbstractionObserver]: Analyzing ICFG barrier-loop.wvr.bpl [2021-08-23 09:24:29,005 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-23 09:24:29,005 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-23 09:24:29,005 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-23 09:24:29,005 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-23 09:24:29,137 INFO L148 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2021-08-23 09:24:29,173 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-23 09:24:29,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-23 09:24:29,175 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) [2021-08-23 09:24:29,180 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 [2021-08-23 09:24:29,211 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread4Thread1of1ForFork3 ======== [2021-08-23 09:24:29,217 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 [2021-08-23 09:24:29,217 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-08-23 09:24:29,854 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread4Thread1of1ForFork3Err4INUSE_VIOLATION [2021-08-23 09:24:29,854 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread4Thread1of1ForFork3Err6INUSE_VIOLATION [2021-08-23 09:24:29,864 INFO L308 ceAbstractionStarter]: Result for error location thread4Thread1of1ForFork3 was SAFE,SAFE (1/3) [2021-08-23 09:24:29,876 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-23 09:24:29,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-23 09:24:29,880 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-08-23 09:24:29,889 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-23 09:24:29,890 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 [2021-08-23 09:24:29,890 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-23 09:24:29,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2021-08-23 09:24:30,101 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION] === [2021-08-23 09:24:30,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-23 09:24:30,106 INFO L82 PathProgramCache]: Analyzing trace with hash 2012537680, now seen corresponding path program 1 times [2021-08-23 09:24:30,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-23 09:24:30,113 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833936081] [2021-08-23 09:24:30,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-23 09:24:30,113 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-23 09:24:30,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-23 09:24:30,283 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-08-23 09:24:30,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-23 09:24:30,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833936081] [2021-08-23 09:24:30,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833936081] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-23 09:24:30,286 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-23 09:24:30,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-23 09:24:30,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7179907] [2021-08-23 09:24:30,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-23 09:24:30,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-23 09:24:30,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-23 09:24:30,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-23 09:24:30,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-23 09:24:30,307 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-23 09:24:30,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2021-08-23 09:24:30,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-23 09:24:30,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-23 09:24:30,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-23 09:24:30,341 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION] === [2021-08-23 09:24:30,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-23 09:24:30,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1432473908, now seen corresponding path program 2 times [2021-08-23 09:24:30,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-23 09:24:30,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213974559] [2021-08-23 09:24:30,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-23 09:24:30,349 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-23 09:24:30,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-23 09:24:30,407 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-23 09:24:30,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-23 09:24:30,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213974559] [2021-08-23 09:24:30,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213974559] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-23 09:24:30,408 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-23 09:24:30,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-23 09:24:30,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796840896] [2021-08-23 09:24:30,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-23 09:24:30,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-23 09:24:30,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-23 09:24:30,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-23 09:24:30,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-23 09:24:30,411 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-23 09:24:30,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2021-08-23 09:24:30,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-23 09:24:30,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-23 09:24:30,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-23 09:24:30,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-23 09:24:30,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-23 09:24:30,437 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION] === [2021-08-23 09:24:30,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-23 09:24:30,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1105218421, now seen corresponding path program 3 times [2021-08-23 09:24:30,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-23 09:24:30,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046810458] [2021-08-23 09:24:30,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-23 09:24:30,439 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-23 09:24:30,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-23 09:24:30,472 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-23 09:24:30,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-23 09:24:30,532 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-23 09:24:30,532 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-23 09:24:30,533 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-08-23 09:24:30,533 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8INUSE_VIOLATION [2021-08-23 09:24:30,533 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9INUSE_VIOLATION [2021-08-23 09:24:30,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-23 09:24:30,552 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN (2/3) [2021-08-23 09:24:30,555 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-23 09:24:30,555 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-23 09:24:30,589 INFO L202 PluginConnector]: Adding new model barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.08 09:24:30 BasicIcfg [2021-08-23 09:24:30,590 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-23 09:24:30,591 INFO L168 Benchmark]: Toolchain (without parser) took 1937.26 ms. Allocated memory was 179.3 MB in the beginning and 223.3 MB in the end (delta: 44.0 MB). Free memory was 160.0 MB in the beginning and 198.1 MB in the end (delta: -38.1 MB). Peak memory consumption was 99.9 MB. Max. memory is 8.0 GB. [2021-08-23 09:24:30,591 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 179.3 MB. Free memory is still 161.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-23 09:24:30,592 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.39 ms. Allocated memory is still 179.3 MB. Free memory was 159.8 MB in the beginning and 158.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-23 09:24:30,592 INFO L168 Benchmark]: Boogie Preprocessor took 13.96 ms. Allocated memory is still 179.3 MB. Free memory was 158.3 MB in the beginning and 157.4 MB in the end (delta: 940.8 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-23 09:24:30,593 INFO L168 Benchmark]: RCFGBuilder took 303.52 ms. Allocated memory is still 179.3 MB. Free memory was 157.3 MB in the beginning and 141.4 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-08-23 09:24:30,593 INFO L168 Benchmark]: TraceAbstraction took 1592.96 ms. Allocated memory was 179.3 MB in the beginning and 223.3 MB in the end (delta: 44.0 MB). Free memory was 141.0 MB in the beginning and 198.1 MB in the end (delta: -57.1 MB). Peak memory consumption was 81.1 MB. Max. memory is 8.0 GB. [2021-08-23 09:24:30,595 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 0.13 ms. Allocated memory is still 179.3 MB. Free memory is still 161.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 22.39 ms. Allocated memory is still 179.3 MB. Free memory was 159.8 MB in the beginning and 158.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.96 ms. Allocated memory is still 179.3 MB. Free memory was 158.3 MB in the beginning and 157.4 MB in the end (delta: 940.8 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 303.52 ms. Allocated memory is still 179.3 MB. Free memory was 157.3 MB in the beginning and 141.4 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1592.96 ms. Allocated memory was 179.3 MB in the beginning and 223.3 MB in the end (delta: 44.0 MB). Free memory was 141.0 MB in the beginning and 198.1 MB in the end (delta: -57.1 MB). Peak memory consumption was 81.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 15733, positive: 14716, positive conditional: 11193, positive unconditional: 3523, negative: 1017, negative conditional: 978, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14989, positive: 14716, positive conditional: 11193, positive unconditional: 3523, negative: 273, negative conditional: 234, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 14989, positive: 14716, positive conditional: 11193, positive unconditional: 3523, negative: 273, negative conditional: 234, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14989, positive: 14716, positive conditional: 0, positive unconditional: 14716, negative: 273, negative conditional: 0, negative unconditional: 273, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 14989, positive: 14716, positive conditional: 0, positive unconditional: 14716, negative: 273, negative conditional: 0, negative unconditional: 273, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 14989, positive: 14716, positive conditional: 0, positive unconditional: 14716, negative: 273, negative conditional: 0, negative unconditional: 273, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2940, positive: 2901, positive conditional: 0, positive unconditional: 2901, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2940, positive: 2891, positive conditional: 0, positive unconditional: 2891, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 49, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 116, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 102, negative conditional: 0, negative unconditional: 102, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 14989, positive: 11815, positive conditional: 0, positive unconditional: 11815, negative: 234, negative conditional: 0, negative unconditional: 234, unknown: 2940, unknown conditional: 0, unknown unconditional: 2940] , Statistics on independence cache: Total cache size (in pairs): 2940, Positive cache size: 2901, Positive conditional cache size: 0, Positive unconditional cache size: 2901, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 744 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 350, Number of persistent set computation: 975, Number of trivial persistent sets: 879, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3562, positive: 3523, positive conditional: 0, positive unconditional: 3523, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 15733, positive: 14716, positive conditional: 11193, positive unconditional: 3523, negative: 1017, negative conditional: 978, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14989, positive: 14716, positive conditional: 11193, positive unconditional: 3523, negative: 273, negative conditional: 234, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 14989, positive: 14716, positive conditional: 11193, positive unconditional: 3523, negative: 273, negative conditional: 234, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14989, positive: 14716, positive conditional: 0, positive unconditional: 14716, negative: 273, negative conditional: 0, negative unconditional: 273, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 14989, positive: 14716, positive conditional: 0, positive unconditional: 14716, negative: 273, negative conditional: 0, negative unconditional: 273, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 14989, positive: 14716, positive conditional: 0, positive unconditional: 14716, negative: 273, negative conditional: 0, negative unconditional: 273, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2940, positive: 2901, positive conditional: 0, positive unconditional: 2901, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2940, positive: 2891, positive conditional: 0, positive unconditional: 2891, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 49, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 116, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 102, negative conditional: 0, negative unconditional: 102, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 14989, positive: 11815, positive conditional: 0, positive unconditional: 11815, negative: 234, negative conditional: 0, negative unconditional: 234, unknown: 2940, unknown conditional: 0, unknown unconditional: 2940] , Statistics on independence cache: Total cache size (in pairs): 2940, Positive cache size: 2901, Positive conditional cache size: 0, Positive unconditional cache size: 2901, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 744 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 5814, positive: 5397, positive conditional: 2109, positive unconditional: 3288, negative: 417, negative conditional: 385, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5525, positive: 5397, positive conditional: 2109, positive unconditional: 3288, negative: 128, negative conditional: 96, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 5525, positive: 5397, positive conditional: 2109, positive unconditional: 3288, negative: 128, negative conditional: 96, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5544, positive: 5397, positive conditional: 251, positive unconditional: 5146, negative: 147, negative conditional: 19, negative unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5544, positive: 5397, positive conditional: 36, positive unconditional: 5361, negative: 147, negative conditional: 3, negative unconditional: 144, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5544, positive: 5397, positive conditional: 36, positive unconditional: 5361, negative: 147, negative conditional: 3, negative unconditional: 144, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2793, positive: 2759, positive conditional: 1, positive unconditional: 2758, negative: 34, negative conditional: 2, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2793, positive: 2750, positive conditional: 0, positive unconditional: 2750, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 43, positive: 9, positive conditional: 1, positive unconditional: 8, negative: 34, negative conditional: 2, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 107, positive: 6, positive conditional: 1, positive unconditional: 5, negative: 101, negative conditional: 3, negative unconditional: 98, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5544, positive: 2638, positive conditional: 35, positive unconditional: 2603, negative: 113, negative conditional: 1, negative unconditional: 112, unknown: 2793, unknown conditional: 3, unknown unconditional: 2790] , Statistics on independence cache: Total cache size (in pairs): 2793, Positive cache size: 2759, Positive conditional cache size: 1, Positive unconditional cache size: 2758, Negative cache size: 34, Negative conditional cache size: 2, Negative unconditional cache size: 32, Eliminated conditions: 231, Maximal queried relation: 2, Independence queries for same thread: 289 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 161, Number of persistent set computation: 382, Number of trivial persistent sets: 167, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3320, positive: 3288, positive conditional: 0, positive unconditional: 3288, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 5814, positive: 5397, positive conditional: 2109, positive unconditional: 3288, negative: 417, negative conditional: 385, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5525, positive: 5397, positive conditional: 2109, positive unconditional: 3288, negative: 128, negative conditional: 96, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 5525, positive: 5397, positive conditional: 2109, positive unconditional: 3288, negative: 128, negative conditional: 96, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5544, positive: 5397, positive conditional: 251, positive unconditional: 5146, negative: 147, negative conditional: 19, negative unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5544, positive: 5397, positive conditional: 36, positive unconditional: 5361, negative: 147, negative conditional: 3, negative unconditional: 144, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5544, positive: 5397, positive conditional: 36, positive unconditional: 5361, negative: 147, negative conditional: 3, negative unconditional: 144, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2793, positive: 2759, positive conditional: 1, positive unconditional: 2758, negative: 34, negative conditional: 2, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2793, positive: 2750, positive conditional: 0, positive unconditional: 2750, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 43, positive: 9, positive conditional: 1, positive unconditional: 8, negative: 34, negative conditional: 2, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 107, positive: 6, positive conditional: 1, positive unconditional: 5, negative: 101, negative conditional: 3, negative unconditional: 98, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5544, positive: 2638, positive conditional: 35, positive unconditional: 2603, negative: 113, negative conditional: 1, negative unconditional: 112, unknown: 2793, unknown conditional: 3, unknown unconditional: 2790] , Statistics on independence cache: Total cache size (in pairs): 2793, Positive cache size: 2759, Positive conditional cache size: 1, Positive unconditional cache size: 2758, Negative cache size: 34, Negative conditional cache size: 2, Negative unconditional cache size: 32, Eliminated conditions: 231, Maximal queried relation: 2, Independence queries for same thread: 289 - 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 - CounterExampleResult [Line: 121]: assertion can be violated assertion can be violated We found a FailurePath: [L115] 0 assume x_0 == x_8 && y_1 == y_9; VAL [x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L116] FORK 0 fork 1 thread1(); VAL [x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L60] 1 f1_2 := false; [L61] 1 f2_3 := false; VAL [f1_2=false, f2_3=false, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L117] FORK 0 fork 4, 4, 4, 4 thread4(); VAL [f1_2=false, f2_3=false, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L103] 2 f1_10 := false; [L104] 2 f2_11 := false; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L106] FORK 2 fork 5, 5, 5, 5, 5 thread5(); VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L107] FORK 2 fork 6, 6, 6, 6, 6, 6 thread6(); VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L108] JOIN 3 join 5, 5, 5, 5, 5; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L109] JOIN 4 join 6, 6, 6, 6, 6, 6; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L63] FORK 1 fork 2, 2 thread2(); VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L64] FORK 1 fork 3, 3, 3 thread3(); VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L30] 5 temp_4 := x_0; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=-1, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L45] 6 temp_6 := y_1; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=-1, temp_6=-1, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L46] 6 y_1 := temp_6 + 1; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=-1, temp_6=-1, x_0=-1, x_8=-1, y_1=0, y_9=-1] [L47] 6 f2_3 := true; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=true, temp_4=-1, temp_6=-1, x_0=-1, x_8=-1, y_1=0, y_9=-1] [L31] 5 x_0 := temp_4 + 1; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=true, temp_4=-1, temp_6=-1, x_0=0, x_8=-1, y_1=0, y_9=-1] [L32] 5 f1_2 := true; VAL [f1_10=false, f1_2=true, f2_11=false, f2_3=true, temp_4=-1, temp_6=-1, x_0=0, x_8=-1, y_1=0, y_9=-1] [L48] 6 assume f1_2; VAL [f1_10=false, f1_2=true, f2_11=false, f2_3=true, temp_4=-1, temp_6=-1, x_0=0, x_8=-1, y_1=0, y_9=-1] [L33] 5 assume f2_3; VAL [f1_10=false, f1_2=true, f2_11=false, f2_3=true, temp_4=-1, temp_6=-1, x_0=0, x_8=-1, y_1=0, y_9=-1] [L34] 5 temp_5 := y_1; VAL [f1_10=false, f1_2=true, f2_11=false, f2_3=true, temp_4=-1, temp_5=0, temp_6=-1, x_0=0, x_8=-1, y_1=0, y_9=-1] [L35] 5 y_1 := temp_5 + 1; VAL [f1_10=false, f1_2=true, f2_11=false, f2_3=true, temp_4=-1, temp_5=0, temp_6=-1, x_0=0, x_8=-1, y_1=1, y_9=-1] [L36] 5 f1_2 := false; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=true, temp_4=-1, temp_5=0, temp_6=-1, x_0=0, x_8=-1, y_1=1, y_9=-1] [L49] 6 temp_7 := x_0; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=true, temp_4=-1, temp_5=0, temp_6=-1, temp_7=0, x_0=0, x_8=-1, y_1=1, y_9=-1] [L50] 6 x_0 := temp_7 + 1; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=true, temp_4=-1, temp_5=0, temp_6=-1, temp_7=0, x_0=1, x_8=-1, y_1=1, y_9=-1] [L51] 6 f2_3 := false; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=-1, temp_5=0, temp_6=-1, temp_7=0, x_0=1, x_8=-1, y_1=1, y_9=-1] [L52] 6 assume !f1_2; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=-1, temp_5=0, temp_6=-1, temp_7=0, x_0=1, x_8=-1, y_1=1, y_9=-1] [L37] 5 assume !f2_3; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=-1, temp_5=0, temp_6=-1, temp_7=0, x_0=1, x_8=-1, y_1=1, y_9=-1] [L65] JOIN 5 join 2, 2; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=-1, temp_5=0, temp_6=-1, temp_7=0, x_0=1, x_8=-1, y_1=1, y_9=-1] [L66] JOIN 6 join 3, 3, 3; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=-1, temp_5=0, temp_6=-1, temp_7=0, x_0=1, x_8=-1, y_1=1, y_9=-1] [L118] JOIN 1 join 1; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=-1, temp_5=0, temp_6=-1, temp_7=0, x_0=1, x_8=-1, y_1=1, y_9=-1] [L119] JOIN 2 join 4, 4, 4, 4; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=-1, temp_5=0, temp_6=-1, temp_7=0, x_0=1, x_8=-1, y_1=1, y_9=-1] [L120] 0 assume !(x_0 == x_8 && y_1 == y_9); VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=-1, temp_5=0, temp_6=-1, temp_7=0, x_0=1, x_8=-1, y_1=1, y_9=-1] [L121] 0 assert false; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=-1, temp_5=0, temp_6=-1, temp_7=0, x_0=1, x_8=-1, y_1=1, y_9=-1] - UnprovableResult [Line: 116]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thread4Thread1of1ForFork3 with 1 thread instances CFG has 13 procedures, 120 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 693.2ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.6ms, PartialOrderReductionTime: 620.1ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 13 procedures, 120 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 676.1ms, OverallIterations: 3, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.5ms, PartialOrderReductionTime: 265.7ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 6, 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: 11.1ms SsaConstructionTime, 71.4ms SatisfiabilityAnalysisTime, 122.3ms InterpolantComputationTime, 149 NumberOfCodeBlocks, 149 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 123 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 48/48 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 proved your program to be incorrect! [2021-08-23 09:24:30,631 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Ended with exit code 0 [2021-08-23 09:24:30,836 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2021-08-23 09:24:31,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...