/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-19 04:01:19,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-19 04:01:19,855 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-19 04:01:19,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-19 04:01:19,911 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-19 04:01:19,912 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-19 04:01:19,913 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-19 04:01:19,915 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-19 04:01:19,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-19 04:01:19,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-19 04:01:19,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-19 04:01:19,922 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-19 04:01:19,923 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-19 04:01:19,924 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-19 04:01:19,925 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-19 04:01:19,926 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-19 04:01:19,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-19 04:01:19,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-19 04:01:19,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-19 04:01:19,937 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-19 04:01:19,938 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.epf [2022-02-19 04:01:19,963 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-19 04:01:19,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-19 04:01:19,963 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-19 04:01:19,963 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-19 04:01:19,964 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-19 04:01:19,964 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-19 04:01:19,964 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-19 04:01:19,964 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-19 04:01:19,965 INFO L138 SettingsManager]: * Use SBE=true [2022-02-19 04:01:19,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-19 04:01:19,965 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-19 04:01:19,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-19 04:01:19,965 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-19 04:01:19,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-19 04:01:19,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-19 04:01:19,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-19 04:01:19,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-19 04:01:19,966 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-19 04:01:19,966 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-19 04:01:19,966 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-19 04:01:19,966 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-19 04:01:19,966 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-19 04:01:19,966 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-19 04:01:19,966 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-19 04:01:19,966 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-19 04:01:19,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 04:01:19,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-19 04:01:19,967 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-19 04:01:19,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-19 04:01:19,967 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-19 04:01:19,967 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-19 04:01:19,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-19 04:01:19,967 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-19 04:01:19,967 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-19 04:01:19,967 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-19 04:01:19,967 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-02-19 04:01:19,968 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-02-19 04:01:19,968 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-19 04:01:20,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-19 04:01:20,183 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-19 04:01:20,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-19 04:01:20,186 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-19 04:01:20,187 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-19 04:01:20,188 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier.wvr.bpl [2022-02-19 04:01:20,188 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier.wvr.bpl' [2022-02-19 04:01:20,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-19 04:01:20,218 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-19 04:01:20,218 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-19 04:01:20,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-19 04:01:20,219 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-19 04:01:20,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:01:20" (1/1) ... [2022-02-19 04:01:20,234 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:01:20" (1/1) ... [2022-02-19 04:01:20,239 INFO L137 Inliner]: procedures = 7, calls = 6, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-19 04:01:20,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-19 04:01:20,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-19 04:01:20,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-19 04:01:20,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-19 04:01:20,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:01:20" (1/1) ... [2022-02-19 04:01:20,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:01:20" (1/1) ... [2022-02-19 04:01:20,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:01:20" (1/1) ... [2022-02-19 04:01:20,250 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:01:20" (1/1) ... [2022-02-19 04:01:20,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:01:20" (1/1) ... [2022-02-19 04:01:20,257 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:01:20" (1/1) ... [2022-02-19 04:01:20,258 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:01:20" (1/1) ... [2022-02-19 04:01:20,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-19 04:01:20,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-19 04:01:20,264 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-19 04:01:20,264 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-19 04:01:20,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:01:20" (1/1) ... [2022-02-19 04:01:20,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 04:01:20,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 04:01:20,289 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-19 04:01:20,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-19 04:01:20,320 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-19 04:01:20,320 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-19 04:01:20,320 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-19 04:01:20,320 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-19 04:01:20,320 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-19 04:01:20,320 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-19 04:01:20,320 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-19 04:01:20,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-19 04:01:20,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-19 04:01:20,321 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-19 04:01:20,321 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-19 04:01:20,321 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-19 04:01:20,322 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-02-19 04:01:20,322 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-19 04:01:20,324 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-19 04:01:20,324 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2022-02-19 04:01:20,324 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-02-19 04:01:20,324 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-02-19 04:01:20,324 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2022-02-19 04:01:20,324 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-02-19 04:01:20,324 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-02-19 04:01:20,325 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-19 04:01:20,366 INFO L234 CfgBuilder]: Building ICFG [2022-02-19 04:01:20,367 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-19 04:01:20,487 INFO L275 CfgBuilder]: Performing block encoding [2022-02-19 04:01:20,505 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-19 04:01:20,505 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-19 04:01:20,506 INFO L202 PluginConnector]: Adding new model barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 04:01:20 BoogieIcfgContainer [2022-02-19 04:01:20,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-19 04:01:20,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-19 04:01:20,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-19 04:01:20,515 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-19 04:01:20,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:01:20" (1/2) ... [2022-02-19 04:01:20,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@472bb73c and model type barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 04:01:20, skipping insertion in model container [2022-02-19 04:01:20,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 04:01:20" (2/2) ... [2022-02-19 04:01:20,518 INFO L111 eAbstractionObserver]: Analyzing ICFG barrier.wvr.bpl [2022-02-19 04:01:20,521 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-19 04:01:20,521 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-19 04:01:20,521 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-19 04:01:20,521 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-19 04:01:20,624 INFO L148 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-02-19 04:01:20,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-19 04:01:20,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 04:01:20,662 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-19 04:01:20,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-19 04:01:20,689 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread4Thread1of1ForFork4 ======== [2022-02-19 04:01:20,693 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-02-19 04:01:20,694 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-19 04:01:21,127 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread4Thread1of1ForFork4Err5INUSE_VIOLATION (1 of 2 remaining) [2022-02-19 04:01:21,128 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread4Thread1of1ForFork4Err6INUSE_VIOLATION (0 of 2 remaining) [2022-02-19 04:01:21,142 INFO L732 BasicCegarLoop]: Path program histogram: [] [2022-02-19 04:01:21,143 INFO L309 ceAbstractionStarter]: Result for error location thread4Thread1of1ForFork4 was SAFE,SAFE (1/3) [2022-02-19 04:01:21,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-19 04:01:21,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 04:01:21,159 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) [2022-02-19 04:01:21,161 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 [2022-02-19 04:01:21,166 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-02-19 04:01:21,167 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-02-19 04:01:21,167 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-19 04:01:21,277 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION] === [2022-02-19 04:01:21,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 04:01:21,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1399006681, now seen corresponding path program 1 times [2022-02-19 04:01:21,287 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 04:01:21,287 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939123054] [2022-02-19 04:01:21,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 04:01:21,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 04:01:21,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 04:01:21,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 04:01:21,443 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 04:01:21,443 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939123054] [2022-02-19 04:01:21,444 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939123054] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 04:01:21,444 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 04:01:21,444 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-19 04:01:21,445 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104531295] [2022-02-19 04:01:21,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 04:01:21,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-19 04:01:21,451 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 04:01:21,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-19 04:01:21,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-19 04:01:21,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 04:01:21,492 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 04:01:21,493 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) [2022-02-19 04:01:21,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 04:01:21,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 04:01:21,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-19 04:01:21,559 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION] === [2022-02-19 04:01:21,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 04:01:21,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1456679001, now seen corresponding path program 2 times [2022-02-19 04:01:21,560 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 04:01:21,560 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306878636] [2022-02-19 04:01:21,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 04:01:21,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 04:01:21,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 04:01:21,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 04:01:21,621 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 04:01:21,621 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306878636] [2022-02-19 04:01:21,622 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306878636] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 04:01:21,622 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 04:01:21,622 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-19 04:01:21,622 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850150957] [2022-02-19 04:01:21,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 04:01:21,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-19 04:01:21,623 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 04:01:21,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-19 04:01:21,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-19 04:01:21,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 04:01:21,624 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 04:01:21,624 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) [2022-02-19 04:01:21,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 04:01:21,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 04:01:21,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 04:01:21,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 04:01:21,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-19 04:01:21,669 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION] === [2022-02-19 04:01:21,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 04:01:21,669 INFO L85 PathProgramCache]: Analyzing trace with hash 86658343, now seen corresponding path program 3 times [2022-02-19 04:01:21,669 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 04:01:21,669 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551795319] [2022-02-19 04:01:21,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 04:01:21,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 04:01:21,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 04:01:22,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 04:01:22,152 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 04:01:22,152 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551795319] [2022-02-19 04:01:22,152 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551795319] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 04:01:22,153 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 04:01:22,153 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-19 04:01:22,153 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710949278] [2022-02-19 04:01:22,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 04:01:22,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-19 04:01:22,153 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 04:01:22,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-19 04:01:22,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2022-02-19 04:01:22,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 04:01:22,155 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 04:01:22,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 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) [2022-02-19 04:01:22,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 04:01:22,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 04:01:22,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 04:01:23,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 04:01:23,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 04:01:23,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-19 04:01:23,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-19 04:01:23,041 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION] === [2022-02-19 04:01:23,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 04:01:23,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1512495129, now seen corresponding path program 4 times [2022-02-19 04:01:23,042 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 04:01:23,042 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976346195] [2022-02-19 04:01:23,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 04:01:23,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 04:01:23,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 04:01:23,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 04:01:23,072 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 04:01:23,072 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976346195] [2022-02-19 04:01:23,072 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976346195] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 04:01:23,073 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 04:01:23,073 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-19 04:01:23,073 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892935342] [2022-02-19 04:01:23,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 04:01:23,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-19 04:01:23,074 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 04:01:23,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-19 04:01:23,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-19 04:01:23,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 04:01:23,074 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 04:01:23,075 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) [2022-02-19 04:01:23,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 04:01:23,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 04:01:23,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-19 04:01:23,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 04:01:23,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 04:01:23,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 04:01:23,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-19 04:01:23,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 04:01:23,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-19 04:01:23,792 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION] === [2022-02-19 04:01:23,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 04:01:23,792 INFO L85 PathProgramCache]: Analyzing trace with hash 218164199, now seen corresponding path program 5 times [2022-02-19 04:01:23,792 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 04:01:23,793 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911664174] [2022-02-19 04:01:23,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 04:01:23,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 04:01:23,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 04:01:23,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 04:01:23,809 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 04:01:23,809 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911664174] [2022-02-19 04:01:23,809 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911664174] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 04:01:23,809 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 04:01:23,809 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-19 04:01:23,809 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228605787] [2022-02-19 04:01:23,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 04:01:23,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-19 04:01:23,810 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 04:01:23,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-19 04:01:23,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-19 04:01:23,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 04:01:23,810 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 04:01:23,810 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) [2022-02-19 04:01:23,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 04:01:23,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 04:01:23,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-02-19 04:01:23,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 04:01:23,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 04:01:23,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 04:01:23,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 04:01:23,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-19 04:01:23,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 04:01:23,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 04:01:23,936 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-02-19 04:01:23,936 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 3 remaining) [2022-02-19 04:01:23,936 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8INUSE_VIOLATION (0 of 3 remaining) [2022-02-19 04:01:23,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-19 04:01:23,938 INFO L732 BasicCegarLoop]: Path program histogram: [5] [2022-02-19 04:01:23,938 INFO L309 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE,SAFE (2/3) [2022-02-19 04:01:23,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-19 04:01:23,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 04:01:23,995 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-19 04:01:23,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2022-02-19 04:01:23,998 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Thread1of1ForFork2 ======== [2022-02-19 04:01:23,998 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-02-19 04:01:23,998 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-19 04:01:24,098 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Thread1of1ForFork2Err3INUSE_VIOLATION (1 of 2 remaining) [2022-02-19 04:01:24,099 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Thread1of1ForFork2Err4INUSE_VIOLATION (0 of 2 remaining) [2022-02-19 04:01:24,100 INFO L732 BasicCegarLoop]: Path program histogram: [] [2022-02-19 04:01:24,100 INFO L309 ceAbstractionStarter]: Result for error location thread1Thread1of1ForFork2 was SAFE,SAFE (3/3) [2022-02-19 04:01:24,100 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-19 04:01:24,101 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-19 04:01:24,103 INFO L202 PluginConnector]: Adding new model barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 04:01:24 BasicIcfg [2022-02-19 04:01:24,103 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-19 04:01:24,103 INFO L158 Benchmark]: Toolchain (without parser) took 3885.80ms. Allocated memory was 226.5MB in the beginning and 272.6MB in the end (delta: 46.1MB). Free memory was 189.4MB in the beginning and 179.7MB in the end (delta: 9.7MB). Peak memory consumption was 56.8MB. Max. memory is 8.0GB. [2022-02-19 04:01:24,104 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.13ms. Allocated memory is still 226.5MB. Free memory is still 190.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-19 04:01:24,104 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.07ms. Allocated memory is still 226.5MB. Free memory was 189.3MB in the beginning and 187.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-19 04:01:24,104 INFO L158 Benchmark]: Boogie Preprocessor took 21.34ms. Allocated memory is still 226.5MB. Free memory was 187.8MB in the beginning and 186.8MB in the end (delta: 954.4kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-19 04:01:24,104 INFO L158 Benchmark]: RCFGBuilder took 243.01ms. Allocated memory is still 226.5MB. Free memory was 186.7MB in the beginning and 177.0MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-02-19 04:01:24,104 INFO L158 Benchmark]: TraceAbstraction took 3595.38ms. Allocated memory was 226.5MB in the beginning and 272.6MB in the end (delta: 46.1MB). Free memory was 176.5MB in the beginning and 179.7MB in the end (delta: -3.2MB). Peak memory consumption was 44.2MB. Max. memory is 8.0GB. [2022-02-19 04:01:24,105 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 0.13ms. Allocated memory is still 226.5MB. Free memory is still 190.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.07ms. Allocated memory is still 226.5MB. Free memory was 189.3MB in the beginning and 187.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.34ms. Allocated memory is still 226.5MB. Free memory was 187.8MB in the beginning and 186.8MB in the end (delta: 954.4kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 243.01ms. Allocated memory is still 226.5MB. Free memory was 186.7MB in the beginning and 177.0MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 3595.38ms. Allocated memory was 226.5MB in the beginning and 272.6MB in the end (delta: 46.1MB). Free memory was 176.5MB in the beginning and 179.7MB in the end (delta: -3.2MB). Peak memory consumption was 44.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 4155, positive: 4077, positive conditional: 915, positive unconditional: 3162, negative: 78, negative conditional: 48, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4128, positive: 4077, positive conditional: 915, positive unconditional: 3162, negative: 51, negative conditional: 21, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 4128, positive: 4077, positive conditional: 915, positive unconditional: 3162, negative: 51, negative conditional: 21, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4128, positive: 4077, positive conditional: 0, positive unconditional: 4077, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4128, positive: 4077, positive conditional: 0, positive unconditional: 4077, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4128, positive: 4077, positive conditional: 0, positive unconditional: 4077, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3192, positive: 3162, positive conditional: 0, positive unconditional: 3162, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3192, positive: 3142, positive conditional: 0, positive unconditional: 3142, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 50, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 166, positive: 63, positive conditional: 0, positive unconditional: 63, negative: 104, negative conditional: 0, negative unconditional: 104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4128, positive: 915, positive conditional: 0, positive unconditional: 915, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 3192, unknown conditional: 0, unknown unconditional: 3192] , Statistics on independence cache: Total cache size (in pairs): 3192, Positive cache size: 3162, Positive conditional cache size: 0, Positive unconditional cache size: 3162, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 27 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.3s, Number of persistent set computation: 272, Number of trivial persistent sets: 261, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3192, positive: 3162, positive conditional: 0, positive unconditional: 3162, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 4155, positive: 4077, positive conditional: 915, positive unconditional: 3162, negative: 78, negative conditional: 48, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4128, positive: 4077, positive conditional: 915, positive unconditional: 3162, negative: 51, negative conditional: 21, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 4128, positive: 4077, positive conditional: 915, positive unconditional: 3162, negative: 51, negative conditional: 21, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4128, positive: 4077, positive conditional: 0, positive unconditional: 4077, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4128, positive: 4077, positive conditional: 0, positive unconditional: 4077, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4128, positive: 4077, positive conditional: 0, positive unconditional: 4077, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3192, positive: 3162, positive conditional: 0, positive unconditional: 3162, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3192, positive: 3142, positive conditional: 0, positive unconditional: 3142, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 50, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 166, positive: 63, positive conditional: 0, positive unconditional: 63, negative: 104, negative conditional: 0, negative unconditional: 104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4128, positive: 915, positive conditional: 0, positive unconditional: 915, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 3192, unknown conditional: 0, unknown unconditional: 3192] , Statistics on independence cache: Total cache size (in pairs): 3192, Positive cache size: 3162, Positive conditional cache size: 0, Positive unconditional cache size: 3162, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 27 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 14694, positive: 13817, positive conditional: 9931, positive unconditional: 3886, negative: 877, negative conditional: 841, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13912, positive: 13817, positive conditional: 9931, positive unconditional: 3886, negative: 95, negative conditional: 59, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 13912, positive: 13817, positive conditional: 9931, positive unconditional: 3886, negative: 95, negative conditional: 59, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14008, positive: 13817, positive conditional: 6473, positive unconditional: 7344, negative: 191, negative conditional: 96, negative unconditional: 95, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 14008, positive: 13817, positive conditional: 1169, positive unconditional: 12648, negative: 191, negative conditional: 55, negative unconditional: 136, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 14008, positive: 13817, positive conditional: 1169, positive unconditional: 12648, negative: 191, negative conditional: 55, negative unconditional: 136, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3924, positive: 3886, positive conditional: 0, positive unconditional: 3886, negative: 38, negative conditional: 2, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3924, positive: 3865, positive conditional: 0, positive unconditional: 3865, negative: 59, negative conditional: 0, negative unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 59, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 38, negative conditional: 2, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 97, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 76, negative conditional: 2, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 14008, positive: 9931, positive conditional: 1169, positive unconditional: 8762, negative: 153, negative conditional: 53, negative unconditional: 100, unknown: 3924, unknown conditional: 2, unknown unconditional: 3922] , Statistics on independence cache: Total cache size (in pairs): 3924, Positive cache size: 3886, Positive conditional cache size: 0, Positive unconditional cache size: 3886, Negative cache size: 38, Negative conditional cache size: 2, Negative unconditional cache size: 36, Eliminated conditions: 5345, Maximal queried relation: 4, Independence queries for same thread: 782 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.3s, Number of persistent set computation: 2996, Number of trivial persistent sets: 2941, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3922, positive: 3886, positive conditional: 0, positive unconditional: 3886, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 14694, positive: 13817, positive conditional: 9931, positive unconditional: 3886, negative: 877, negative conditional: 841, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13912, positive: 13817, positive conditional: 9931, positive unconditional: 3886, negative: 95, negative conditional: 59, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 13912, positive: 13817, positive conditional: 9931, positive unconditional: 3886, negative: 95, negative conditional: 59, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14008, positive: 13817, positive conditional: 6473, positive unconditional: 7344, negative: 191, negative conditional: 96, negative unconditional: 95, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 14008, positive: 13817, positive conditional: 1169, positive unconditional: 12648, negative: 191, negative conditional: 55, negative unconditional: 136, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 14008, positive: 13817, positive conditional: 1169, positive unconditional: 12648, negative: 191, negative conditional: 55, negative unconditional: 136, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3924, positive: 3886, positive conditional: 0, positive unconditional: 3886, negative: 38, negative conditional: 2, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3924, positive: 3865, positive conditional: 0, positive unconditional: 3865, negative: 59, negative conditional: 0, negative unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 59, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 38, negative conditional: 2, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 97, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 76, negative conditional: 2, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 14008, positive: 9931, positive conditional: 1169, positive unconditional: 8762, negative: 153, negative conditional: 53, negative unconditional: 100, unknown: 3924, unknown conditional: 2, unknown unconditional: 3922] , Statistics on independence cache: Total cache size (in pairs): 3924, Positive cache size: 3886, Positive conditional cache size: 0, Positive unconditional cache size: 3886, Negative cache size: 38, Negative conditional cache size: 2, Negative unconditional cache size: 36, Eliminated conditions: 5345, Maximal queried relation: 4, Independence queries for same thread: 782 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3669, positive: 3607, positive conditional: 696, positive unconditional: 2911, negative: 62, negative conditional: 32, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3651, positive: 3607, positive conditional: 696, positive unconditional: 2911, negative: 44, negative conditional: 14, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3651, positive: 3607, positive conditional: 696, positive unconditional: 2911, negative: 44, negative conditional: 14, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3651, positive: 3607, positive conditional: 0, positive unconditional: 3607, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3651, positive: 3607, positive conditional: 0, positive unconditional: 3607, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3651, positive: 3607, positive conditional: 0, positive unconditional: 3607, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2941, positive: 2911, positive conditional: 0, positive unconditional: 2911, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2941, positive: 2891, positive conditional: 0, positive unconditional: 2891, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 50, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 71, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3651, positive: 696, positive conditional: 0, positive unconditional: 696, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 2941, unknown conditional: 0, unknown unconditional: 2941] , Statistics on independence cache: Total cache size (in pairs): 2941, Positive cache size: 2911, Positive conditional cache size: 0, Positive unconditional cache size: 2911, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 18 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 180, Number of trivial persistent sets: 172, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2941, positive: 2911, positive conditional: 0, positive unconditional: 2911, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3669, positive: 3607, positive conditional: 696, positive unconditional: 2911, negative: 62, negative conditional: 32, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3651, positive: 3607, positive conditional: 696, positive unconditional: 2911, negative: 44, negative conditional: 14, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3651, positive: 3607, positive conditional: 696, positive unconditional: 2911, negative: 44, negative conditional: 14, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3651, positive: 3607, positive conditional: 0, positive unconditional: 3607, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3651, positive: 3607, positive conditional: 0, positive unconditional: 3607, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3651, positive: 3607, positive conditional: 0, positive unconditional: 3607, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2941, positive: 2911, positive conditional: 0, positive unconditional: 2911, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2941, positive: 2891, positive conditional: 0, positive unconditional: 2891, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 50, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 71, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3651, positive: 696, positive conditional: 0, positive unconditional: 696, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 2941, unknown conditional: 0, unknown unconditional: 2941] , Statistics on independence cache: Total cache size (in pairs): 2941, Positive cache size: 2911, Positive conditional cache size: 0, Positive unconditional cache size: 2911, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 18 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 95]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thread4Thread1of1ForFork4 with 1 thread instances CFG has 13 procedures, 112 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.4s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s 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, 0.0s 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, 112 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 1.9s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 235 NumberOfCodeBlocks, 235 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 230 ConstructedInterpolants, 0 QuantifiedInterpolants, 932 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thread1Thread1of1ForFork2 with 1 thread instances CFG has 13 procedures, 112 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s 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, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-02-19 04:01:24,132 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Forceful destruction successful, exit code 0 [2022-02-19 04:01:24,346 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 [2022-02-19 04:01:24,546 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 [2022-02-19 04:01:24,745 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...