/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-Uncond-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 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-25 09:21:36,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-25 09:21:36,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-25 09:21:36,523 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-25 09:21:36,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-25 09:21:36,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-25 09:21:36,579 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-25 09:21:36,579 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-Uncond-NoLbe-Random7777.epf [2021-10-25 09:21:36,613 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-25 09:21:36,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-25 09:21:36,613 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-25 09:21:36,613 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-25 09:21:36,614 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-25 09:21:36,614 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-25 09:21:36,614 INFO L138 SettingsManager]: * Use SBE=true [2021-10-25 09:21:36,615 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-25 09:21:36,615 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-25 09:21:36,615 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-25 09:21:36,618 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-25 09:21:36,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-25 09:21:36,618 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-25 09:21:36,618 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-25 09:21:36,619 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-25 09:21:36,619 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-25 09:21:36,619 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-25 09:21:36,619 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-25 09:21:36,619 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-25 09:21:36,619 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-25 09:21:36,619 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-25 09:21:36,619 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-25 09:21:36,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-25 09:21:36,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-25 09:21:36,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-25 09:21:36,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-25 09:21:36,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-25 09:21:36,620 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-25 09:21:36,620 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-10-25 09:21:36,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-25 09:21:36,621 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-25 09:21:36,621 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-25 09:21:36,621 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-25 09:21:36,621 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-25 09:21:36,621 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-25 09:21:36,621 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-25 09:21:36,622 INFO L138 SettingsManager]: * Random seed used by POR DFS order=7777 [2021-10-25 09:21:36,622 INFO L138 SettingsManager]: * Use conditional POR in concurrent analysis=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-25 09:21:36,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-25 09:21:36,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-25 09:21:36,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-25 09:21:36,821 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-10-25 09:21:36,821 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-10-25 09:21:36,822 INFO L432 ainManager$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 [2021-10-25 09:21:36,822 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier-loop.wvr.bpl' [2021-10-25 09:21:36,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-25 09:21:36,858 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-10-25 09:21:36,859 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-25 09:21:36,859 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-25 09:21:36,859 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-25 09:21:36,869 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 25.10 09:21:36" (1/1) ... [2021-10-25 09:21:36,875 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 25.10 09:21:36" (1/1) ... [2021-10-25 09:21:36,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-25 09:21:36,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-25 09:21:36,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-25 09:21:36,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-25 09:21:36,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 09:21:36" (1/1) ... [2021-10-25 09:21:36,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 09:21:36" (1/1) ... [2021-10-25 09:21:36,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 09:21:36" (1/1) ... [2021-10-25 09:21:36,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 09:21:36" (1/1) ... [2021-10-25 09:21:36,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 09:21:36" (1/1) ... [2021-10-25 09:21:36,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 09:21:36" (1/1) ... [2021-10-25 09:21:36,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 09:21:36" (1/1) ... [2021-10-25 09:21:36,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-25 09:21:36,896 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-25 09:21:36,896 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-25 09:21:36,896 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-25 09:21:36,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 09:21:36" (1/1) ... [2021-10-25 09:21:36,903 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-25 09:21:36,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 09:21:36,921 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) [2021-10-25 09:21:36,932 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 [2021-10-25 09:21:36,966 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-10-25 09:21:36,967 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-25 09:21:36,967 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-25 09:21:36,967 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-10-25 09:21:36,967 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-25 09:21:36,967 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-25 09:21:36,967 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-10-25 09:21:36,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-25 09:21:36,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-25 09:21:36,968 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-10-25 09:21:36,968 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-25 09:21:36,968 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-25 09:21:36,969 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-10-25 09:21:36,969 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-10-25 09:21:36,969 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-10-25 09:21:36,972 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2021-10-25 09:21:36,972 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-10-25 09:21:36,972 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-10-25 09:21:36,972 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2021-10-25 09:21:36,972 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2021-10-25 09:21:36,972 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2021-10-25 09:21:36,973 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-25 09:21:37,261 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-25 09:21:37,262 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-25 09:21:37,264 INFO L202 PluginConnector]: Adding new model barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:21:37 BoogieIcfgContainer [2021-10-25 09:21:37,264 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-25 09:21:37,265 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-25 09:21:37,265 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-25 09:21:37,285 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-25 09:21:37,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 09:21:36" (1/2) ... [2021-10-25 09:21:37,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16efc65c and model type barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:21:37, skipping insertion in model container [2021-10-25 09:21:37,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:21:37" (2/2) ... [2021-10-25 09:21:37,290 INFO L111 eAbstractionObserver]: Analyzing ICFG barrier-loop.wvr.bpl [2021-10-25 09:21:37,304 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-25 09:21:37,304 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-25 09:21:37,304 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-25 09:21:37,304 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-25 09:21:37,399 INFO L148 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2021-10-25 09:21:37,437 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-25 09:21:37,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 09:21:37,440 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) [2021-10-25 09:21:37,441 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 [2021-10-25 09:21:37,463 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread4Thread1of1ForFork3 ======== [2021-10-25 09:21:37,469 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 [2021-10-25 09:21:37,469 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-25 09:21:38,091 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread4Thread1of1ForFork3Err4INUSE_VIOLATION [2021-10-25 09:21:38,092 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread4Thread1of1ForFork3Err6INUSE_VIOLATION [2021-10-25 09:21:38,102 INFO L308 ceAbstractionStarter]: Result for error location thread4Thread1of1ForFork3 was SAFE,SAFE (1/3) [2021-10-25 09:21:38,113 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-25 09:21:38,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 09:21:38,119 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) [2021-10-25 09:21:38,122 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 [2021-10-25 09:21:38,125 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-25 09:21:38,126 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 [2021-10-25 09:21:38,126 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-25 09:21:38,355 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION] === [2021-10-25 09:21:38,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 09:21:38,361 INFO L82 PathProgramCache]: Analyzing trace with hash 2012537680, now seen corresponding path program 1 times [2021-10-25 09:21:38,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 09:21:38,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026896393] [2021-10-25 09:21:38,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 09:21:38,370 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 09:21:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 09:21:38,588 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-10-25 09:21:38,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 09:21:38,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026896393] [2021-10-25 09:21:38,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026896393] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 09:21:38,590 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 09:21:38,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-25 09:21:38,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844603307] [2021-10-25 09:21:38,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-25 09:21:38,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 09:21:38,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-25 09:21:38,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-25 09:21:38,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 09:21:38,609 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 09:21:38,610 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) [2021-10-25 09:21:38,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 09:21:38,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:21:38,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-25 09:21:38,639 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION] === [2021-10-25 09:21:38,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 09:21:38,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1432473908, now seen corresponding path program 2 times [2021-10-25 09:21:38,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 09:21:38,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210650214] [2021-10-25 09:21:38,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 09:21:38,640 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 09:21:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 09:21:38,671 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-25 09:21:38,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 09:21:38,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210650214] [2021-10-25 09:21:38,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210650214] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 09:21:38,672 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 09:21:38,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-25 09:21:38,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473675656] [2021-10-25 09:21:38,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-25 09:21:38,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 09:21:38,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-25 09:21:38,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-25 09:21:38,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 09:21:38,674 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 09:21:38,675 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) [2021-10-25 09:21:38,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:21:38,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 09:21:38,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:21:38,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:21:38,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-25 09:21:38,691 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION] === [2021-10-25 09:21:38,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 09:21:38,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1105218421, now seen corresponding path program 3 times [2021-10-25 09:21:38,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 09:21:38,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314730462] [2021-10-25 09:21:38,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 09:21:38,692 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 09:21:38,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-25 09:21:38,706 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-25 09:21:38,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-25 09:21:38,744 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-25 09:21:38,744 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-25 09:21:38,744 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-10-25 09:21:38,745 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8INUSE_VIOLATION [2021-10-25 09:21:38,745 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9INUSE_VIOLATION [2021-10-25 09:21:38,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-25 09:21:38,750 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN (2/3) [2021-10-25 09:21:38,752 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-25 09:21:38,752 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-25 09:21:38,792 INFO L202 PluginConnector]: Adding new model barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 09:21:38 BasicIcfg [2021-10-25 09:21:38,792 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-25 09:21:38,794 INFO L168 Benchmark]: Toolchain (without parser) took 1935.53 ms. Allocated memory was 198.2 MB in the beginning and 277.9 MB in the end (delta: 79.7 MB). Free memory was 156.6 MB in the beginning and 226.8 MB in the end (delta: -70.2 MB). Peak memory consumption was 10.4 MB. Max. memory is 8.0 GB. [2021-10-25 09:21:38,795 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 198.2 MB. Free memory was 157.8 MB in the beginning and 157.7 MB in the end (delta: 129.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-25 09:21:38,799 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.18 ms. Allocated memory is still 198.2 MB. Free memory was 156.5 MB in the beginning and 154.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-25 09:21:38,801 INFO L168 Benchmark]: Boogie Preprocessor took 13.18 ms. Allocated memory is still 198.2 MB. Free memory was 154.9 MB in the beginning and 153.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-25 09:21:38,801 INFO L168 Benchmark]: RCFGBuilder took 367.67 ms. Allocated memory is still 198.2 MB. Free memory was 153.9 MB in the beginning and 138.6 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-10-25 09:21:38,802 INFO L168 Benchmark]: TraceAbstraction took 1527.11 ms. Allocated memory was 198.2 MB in the beginning and 277.9 MB in the end (delta: 79.7 MB). Free memory was 138.0 MB in the beginning and 226.8 MB in the end (delta: -88.8 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-25 09:21:38,804 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 0.12 ms. Allocated memory is still 198.2 MB. Free memory was 157.8 MB in the beginning and 157.7 MB in the end (delta: 129.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 23.18 ms. Allocated memory is still 198.2 MB. Free memory was 156.5 MB in the beginning and 154.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.18 ms. Allocated memory is still 198.2 MB. Free memory was 154.9 MB in the beginning and 153.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 367.67 ms. Allocated memory is still 198.2 MB. Free memory was 153.9 MB in the beginning and 138.6 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1527.11 ms. Allocated memory was 198.2 MB in the beginning and 277.9 MB in the end (delta: 79.7 MB). Free memory was 138.0 MB in the beginning and 226.8 MB in the end (delta: -88.8 MB). There was no memory consumed. 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: 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: 87, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 79, negative conditional: 0, negative unconditional: 79, 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, Independence queries for same thread: 744 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 324, Number of persistent set computation: 975, Number of trivial persistent sets: 879, Underlying independence 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: 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: 87, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 79, negative conditional: 0, negative unconditional: 79, 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, 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: 5396, positive conditional: 2108, positive unconditional: 3288, negative: 418, negative conditional: 386, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5525, positive: 5396, positive conditional: 0, positive unconditional: 5396, negative: 129, negative conditional: 0, negative unconditional: 129, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2790, positive: 2758, positive conditional: 0, positive unconditional: 2758, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2790, positive: 2750, positive conditional: 0, positive unconditional: 2750, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 40, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 132, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 126, negative conditional: 0, negative unconditional: 126, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5525, positive: 2638, positive conditional: 0, positive unconditional: 2638, negative: 97, negative conditional: 0, negative unconditional: 97, unknown: 2790, unknown conditional: 0, unknown unconditional: 2790] , Statistics on independence cache: Total cache size (in pairs): 2790, Positive cache size: 2758, Positive conditional cache size: 0, Positive unconditional cache size: 2758, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32, Independence queries for same thread: 289 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 178, Number of persistent set computation: 382, Number of trivial persistent sets: 167, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 5814, positive: 5396, positive conditional: 2108, positive unconditional: 3288, negative: 418, negative conditional: 386, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5525, positive: 5396, positive conditional: 0, positive unconditional: 5396, negative: 129, negative conditional: 0, negative unconditional: 129, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2790, positive: 2758, positive conditional: 0, positive unconditional: 2758, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2790, positive: 2750, positive conditional: 0, positive unconditional: 2750, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 40, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 132, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 126, negative conditional: 0, negative unconditional: 126, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5525, positive: 2638, positive conditional: 0, positive unconditional: 2638, negative: 97, negative conditional: 0, negative unconditional: 97, unknown: 2790, unknown conditional: 0, unknown unconditional: 2790] , Statistics on independence cache: Total cache size (in pairs): 2790, Positive cache size: 2758, Positive conditional cache size: 0, Positive unconditional cache size: 2758, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32, 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: 666.8ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 18.0ms, PartialOrderReductionTime: 599.9ms, 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: 636.2ms, OverallIterations: 3, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.8ms, PartialOrderReductionTime: 270.1ms, 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: 9.9ms SsaConstructionTime, 44.4ms SatisfiabilityAnalysisTime, 151.8ms 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! [2021-10-25 09:21:38,850 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Forceful destruction successful, exit code 0 [2021-10-25 09:21:39,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-10-25 09:21:39,257 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...