/usr/lib/jvm/java-1.11.0-openjdk-amd64/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-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.datarace-free-lbe-02cf818-m [2023-11-17 15:32:01,209 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 15:32:01,275 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2023-11-17 15:32:01,296 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 15:32:01,297 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 15:32:01,298 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 15:32:01,298 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 15:32:01,298 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 15:32:01,299 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 15:32:01,299 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 15:32:01,299 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 15:32:01,300 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 15:32:01,300 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 15:32:01,300 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 15:32:01,301 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 15:32:01,301 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 15:32:01,301 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 15:32:01,301 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 15:32:01,302 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 15:32:01,302 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 15:32:01,302 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 15:32:01,308 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 15:32:01,309 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 15:32:01,309 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-17 15:32:01,309 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 15:32:01,309 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 15:32:01,309 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 15:32:01,310 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 15:32:01,310 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 15:32:01,310 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 15:32:01,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 15:32:01,310 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-17 15:32:01,311 INFO L153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-17 15:32:01,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 15:32:01,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 15:32:01,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 15:32:01,522 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 15:32:01,522 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 15:32:01,523 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_true.i [2023-11-17 15:32:02,668 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 15:32:02,898 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 15:32:02,899 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_true.i [2023-11-17 15:32:02,913 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bccba6c0d/6c141736856c4a189d5c54de29a656f3/FLAGde871c0df [2023-11-17 15:32:02,928 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bccba6c0d/6c141736856c4a189d5c54de29a656f3 [2023-11-17 15:32:02,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 15:32:02,932 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-17 15:32:02,932 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 15:32:02,932 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 15:32:02,936 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 15:32:02,937 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:32:02" (1/1) ... [2023-11-17 15:32:02,938 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37677f2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:02, skipping insertion in model container [2023-11-17 15:32:02,938 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:32:02" (1/1) ... [2023-11-17 15:32:02,974 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 15:32:03,116 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_true.i[1088,1101] [2023-11-17 15:32:03,256 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 15:32:03,269 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 15:32:03,283 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_true.i[1088,1101] [2023-11-17 15:32:03,311 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 15:32:03,353 INFO L206 MainTranslator]: Completed translation [2023-11-17 15:32:03,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:03 WrapperNode [2023-11-17 15:32:03,355 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 15:32:03,356 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 15:32:03,356 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 15:32:03,356 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 15:32:03,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:03" (1/1) ... [2023-11-17 15:32:03,399 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:03" (1/1) ... [2023-11-17 15:32:03,421 INFO L138 Inliner]: procedures = 164, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 50 [2023-11-17 15:32:03,421 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 15:32:03,422 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 15:32:03,422 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 15:32:03,422 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 15:32:03,430 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:03" (1/1) ... [2023-11-17 15:32:03,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:03" (1/1) ... [2023-11-17 15:32:03,440 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:03" (1/1) ... [2023-11-17 15:32:03,441 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:03" (1/1) ... [2023-11-17 15:32:03,451 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:03" (1/1) ... [2023-11-17 15:32:03,459 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:03" (1/1) ... [2023-11-17 15:32:03,460 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:03" (1/1) ... [2023-11-17 15:32:03,461 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:03" (1/1) ... [2023-11-17 15:32:03,463 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 15:32:03,464 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 15:32:03,464 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 15:32:03,464 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 15:32:03,465 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:03" (1/1) ... [2023-11-17 15:32:03,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 15:32:03,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 15:32:03,497 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) [2023-11-17 15:32:03,520 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 [2023-11-17 15:32:03,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 15:32:03,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 15:32:03,528 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-17 15:32:03,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 15:32:03,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 15:32:03,529 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-17 15:32:03,529 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-17 15:32:03,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 15:32:03,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 15:32:03,529 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-17 15:32:03,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 15:32:03,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 15:32:03,531 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-17 15:32:03,677 INFO L239 CfgBuilder]: Building ICFG [2023-11-17 15:32:03,678 INFO L265 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 15:32:03,795 INFO L280 CfgBuilder]: Performing block encoding [2023-11-17 15:32:03,820 INFO L302 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 15:32:03,821 INFO L307 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-17 15:32:03,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:32:03 BoogieIcfgContainer [2023-11-17 15:32:03,822 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 15:32:03,824 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 15:32:03,824 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 15:32:03,827 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 15:32:03,827 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:32:02" (1/3) ... [2023-11-17 15:32:03,828 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b6fe96f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:32:03, skipping insertion in model container [2023-11-17 15:32:03,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:03" (2/3) ... [2023-11-17 15:32:03,828 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b6fe96f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:32:03, skipping insertion in model container [2023-11-17 15:32:03,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:32:03" (3/3) ... [2023-11-17 15:32:03,829 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_true.i [2023-11-17 15:32:03,844 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 15:32:03,845 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-17 15:32:03,845 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 15:32:03,882 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-17 15:32:03,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 73 transitions, 153 flow [2023-11-17 15:32:03,950 INFO L124 PetriNetUnfolderBase]: 3/72 cut-off events. [2023-11-17 15:32:03,950 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-17 15:32:03,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 72 events. 3/72 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 52 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2023-11-17 15:32:03,954 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 73 transitions, 153 flow [2023-11-17 15:32:03,957 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 64 transitions, 131 flow [2023-11-17 15:32:03,960 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-17 15:32:03,972 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 64 transitions, 131 flow [2023-11-17 15:32:03,975 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 64 transitions, 131 flow [2023-11-17 15:32:03,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 64 transitions, 131 flow [2023-11-17 15:32:04,006 INFO L124 PetriNetUnfolderBase]: 3/64 cut-off events. [2023-11-17 15:32:04,006 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 15:32:04,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 64 events. 3/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 52 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2023-11-17 15:32:04,008 INFO L119 LiptonReduction]: Number of co-enabled transitions 544 [2023-11-17 15:32:05,939 INFO L134 LiptonReduction]: Checked pairs total: 954 [2023-11-17 15:32:05,940 INFO L136 LiptonReduction]: Total number of compositions: 72 [2023-11-17 15:32:05,971 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-17 15:32:05,979 INFO L357 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@b980e43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 15:32:05,980 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-17 15:32:05,983 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-17 15:32:05,983 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-11-17 15:32:05,983 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 15:32:05,983 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:32:05,984 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-17 15:32:05,984 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-17 15:32:05,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:32:05,989 INFO L85 PathProgramCache]: Analyzing trace with hash 296, now seen corresponding path program 1 times [2023-11-17 15:32:05,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:32:05,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800186612] [2023-11-17 15:32:05,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:32:05,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:32:06,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:32:06,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 15:32:06,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:32:06,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800186612] [2023-11-17 15:32:06,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800186612] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:32:06,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:32:06,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-17 15:32:06,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852769269] [2023-11-17 15:32:06,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:32:06,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-17 15:32:06,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:32:06,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-17 15:32:06,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-17 15:32:06,160 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 145 [2023-11-17 15:32:06,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 13 transitions, 29 flow. Second operand has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 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) [2023-11-17 15:32:06,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:32:06,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 145 [2023-11-17 15:32:06,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:32:06,205 INFO L124 PetriNetUnfolderBase]: 20/46 cut-off events. [2023-11-17 15:32:06,205 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 15:32:06,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 46 events. 20/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 105 event pairs, 16 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 84. Up to 43 conditions per place. [2023-11-17 15:32:06,207 INFO L140 encePairwiseOnDemand]: 143/145 looper letters, 9 selfloop transitions, 0 changer transitions 1/11 dead transitions. [2023-11-17 15:32:06,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 11 transitions, 45 flow [2023-11-17 15:32:06,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 15:32:06,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-17 15:32:06,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 138 transitions. [2023-11-17 15:32:06,221 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47586206896551725 [2023-11-17 15:32:06,221 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 138 transitions. [2023-11-17 15:32:06,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 138 transitions. [2023-11-17 15:32:06,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:32:06,226 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 138 transitions. [2023-11-17 15:32:06,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 69.0) internal successors, (138), 2 states have internal predecessors, (138), 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) [2023-11-17 15:32:06,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 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) [2023-11-17 15:32:06,236 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 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) [2023-11-17 15:32:06,238 INFO L175 Difference]: Start difference. First operand has 15 places, 13 transitions, 29 flow. Second operand 2 states and 138 transitions. [2023-11-17 15:32:06,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 11 transitions, 45 flow [2023-11-17 15:32:06,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 11 transitions, 44 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 15:32:06,242 INFO L231 Difference]: Finished difference. Result has 14 places, 10 transitions, 22 flow [2023-11-17 15:32:06,244 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=22, PETRI_PLACES=14, PETRI_TRANSITIONS=10} [2023-11-17 15:32:06,247 INFO L281 CegarLoopForPetriNet]: 15 programPoint places, -1 predicate places. [2023-11-17 15:32:06,247 INFO L495 AbstractCegarLoop]: Abstraction has has 14 places, 10 transitions, 22 flow [2023-11-17 15:32:06,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 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) [2023-11-17 15:32:06,249 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:32:06,249 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-17 15:32:06,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 15:32:06,249 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-17 15:32:06,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:32:06,250 INFO L85 PathProgramCache]: Analyzing trace with hash 9041154, now seen corresponding path program 1 times [2023-11-17 15:32:06,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:32:06,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654176429] [2023-11-17 15:32:06,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:32:06,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:32:06,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:32:06,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 15:32:06,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:32:06,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654176429] [2023-11-17 15:32:06,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654176429] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:32:06,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:32:06,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-17 15:32:06,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655882112] [2023-11-17 15:32:06,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:32:06,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 15:32:06,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:32:06,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 15:32:06,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 15:32:06,423 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 145 [2023-11-17 15:32:06,423 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 10 transitions, 22 flow. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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) [2023-11-17 15:32:06,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:32:06,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 145 [2023-11-17 15:32:06,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:32:06,453 INFO L124 PetriNetUnfolderBase]: 11/31 cut-off events. [2023-11-17 15:32:06,454 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 15:32:06,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 31 events. 11/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 57 event pairs, 6 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 64. Up to 26 conditions per place. [2023-11-17 15:32:06,455 INFO L140 encePairwiseOnDemand]: 140/145 looper letters, 6 selfloop transitions, 3 changer transitions 4/13 dead transitions. [2023-11-17 15:32:06,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 13 transitions, 54 flow [2023-11-17 15:32:06,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 15:32:06,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 15:32:06,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 185 transitions. [2023-11-17 15:32:06,461 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42528735632183906 [2023-11-17 15:32:06,461 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 185 transitions. [2023-11-17 15:32:06,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 185 transitions. [2023-11-17 15:32:06,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:32:06,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 185 transitions. [2023-11-17 15:32:06,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 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) [2023-11-17 15:32:06,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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) [2023-11-17 15:32:06,465 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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) [2023-11-17 15:32:06,465 INFO L175 Difference]: Start difference. First operand has 14 places, 10 transitions, 22 flow. Second operand 3 states and 185 transitions. [2023-11-17 15:32:06,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 13 transitions, 54 flow [2023-11-17 15:32:06,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 13 transitions, 54 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-17 15:32:06,466 INFO L231 Difference]: Finished difference. Result has 16 places, 8 transitions, 29 flow [2023-11-17 15:32:06,466 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=22, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=29, PETRI_PLACES=16, PETRI_TRANSITIONS=8} [2023-11-17 15:32:06,467 INFO L281 CegarLoopForPetriNet]: 15 programPoint places, 1 predicate places. [2023-11-17 15:32:06,467 INFO L495 AbstractCegarLoop]: Abstraction has has 16 places, 8 transitions, 29 flow [2023-11-17 15:32:06,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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) [2023-11-17 15:32:06,468 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:32:06,468 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-17 15:32:06,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-17 15:32:06,468 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-17 15:32:06,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:32:06,469 INFO L85 PathProgramCache]: Analyzing trace with hash 98615150, now seen corresponding path program 1 times [2023-11-17 15:32:06,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:32:06,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925345794] [2023-11-17 15:32:06,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:32:06,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:32:06,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:32:06,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 15:32:06,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:32:06,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925345794] [2023-11-17 15:32:06,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925345794] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:32:06,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:32:06,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-17 15:32:06,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085502550] [2023-11-17 15:32:06,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:32:06,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 15:32:06,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:32:06,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 15:32:06,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 15:32:06,592 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 145 [2023-11-17 15:32:06,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 8 transitions, 29 flow. Second operand has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 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) [2023-11-17 15:32:06,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:32:06,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 145 [2023-11-17 15:32:06,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:32:06,626 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2023-11-17 15:32:06,626 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 15:32:06,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 8 events. 0/8 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 4/12 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2023-11-17 15:32:06,627 INFO L140 encePairwiseOnDemand]: 139/145 looper letters, 0 selfloop transitions, 0 changer transitions 7/7 dead transitions. [2023-11-17 15:32:06,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 7 transitions, 39 flow [2023-11-17 15:32:06,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 15:32:06,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-17 15:32:06,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 265 transitions. [2023-11-17 15:32:06,629 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36551724137931035 [2023-11-17 15:32:06,629 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 265 transitions. [2023-11-17 15:32:06,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 265 transitions. [2023-11-17 15:32:06,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:32:06,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 265 transitions. [2023-11-17 15:32:06,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 53.0) internal successors, (265), 5 states have internal predecessors, (265), 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) [2023-11-17 15:32:06,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 145.0) internal successors, (870), 6 states have internal predecessors, (870), 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) [2023-11-17 15:32:06,634 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 145.0) internal successors, (870), 6 states have internal predecessors, (870), 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) [2023-11-17 15:32:06,634 INFO L175 Difference]: Start difference. First operand has 16 places, 8 transitions, 29 flow. Second operand 5 states and 265 transitions. [2023-11-17 15:32:06,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 7 transitions, 39 flow [2023-11-17 15:32:06,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 7 transitions, 30 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-17 15:32:06,634 INFO L231 Difference]: Finished difference. Result has 15 places, 0 transitions, 0 flow [2023-11-17 15:32:06,634 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=16, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=15, PETRI_TRANSITIONS=0} [2023-11-17 15:32:06,635 INFO L281 CegarLoopForPetriNet]: 15 programPoint places, 0 predicate places. [2023-11-17 15:32:06,635 INFO L495 AbstractCegarLoop]: Abstraction has has 15 places, 0 transitions, 0 flow [2023-11-17 15:32:06,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 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) [2023-11-17 15:32:06,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-11-17 15:32:06,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2023-11-17 15:32:06,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-11-17 15:32:06,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-17 15:32:06,639 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-17 15:32:06,641 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-17 15:32:06,641 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-17 15:32:06,645 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 03:32:06 BasicIcfg [2023-11-17 15:32:06,645 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-17 15:32:06,650 INFO L158 Benchmark]: Toolchain (without parser) took 3714.09ms. Allocated memory is still 316.7MB. Free memory was 264.6MB in the beginning and 110.0MB in the end (delta: 154.7MB). Peak memory consumption was 155.6MB. Max. memory is 8.0GB. [2023-11-17 15:32:06,650 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 188.7MB. Free memory is still 139.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 15:32:06,651 INFO L158 Benchmark]: CACSL2BoogieTranslator took 422.98ms. Allocated memory is still 316.7MB. Free memory was 264.1MB in the beginning and 245.1MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-11-17 15:32:06,651 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.26ms. Allocated memory is still 316.7MB. Free memory was 245.1MB in the beginning and 243.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-17 15:32:06,651 INFO L158 Benchmark]: Boogie Preprocessor took 41.55ms. Allocated memory is still 316.7MB. Free memory was 243.1MB in the beginning and 241.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-11-17 15:32:06,652 INFO L158 Benchmark]: RCFGBuilder took 358.42ms. Allocated memory is still 316.7MB. Free memory was 241.6MB in the beginning and 227.9MB in the end (delta: 13.7MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-11-17 15:32:06,654 INFO L158 Benchmark]: TraceAbstraction took 2821.05ms. Allocated memory is still 316.7MB. Free memory was 227.4MB in the beginning and 110.0MB in the end (delta: 117.4MB). Peak memory consumption was 117.9MB. Max. memory is 8.0GB. [2023-11-17 15:32:06,660 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 188.7MB. Free memory is still 139.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 422.98ms. Allocated memory is still 316.7MB. Free memory was 264.1MB in the beginning and 245.1MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 65.26ms. Allocated memory is still 316.7MB. Free memory was 245.1MB in the beginning and 243.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 41.55ms. Allocated memory is still 316.7MB. Free memory was 243.1MB in the beginning and 241.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 358.42ms. Allocated memory is still 316.7MB. Free memory was 241.6MB in the beginning and 227.9MB in the end (delta: 13.7MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2821.05ms. Allocated memory is still 316.7MB. Free memory was 227.4MB in the beginning and 110.0MB in the end (delta: 117.4MB). Peak memory consumption was 117.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 65 PlacesBefore, 15 PlacesAfterwards, 64 TransitionsBefore, 13 TransitionsAfterwards, 544 CoEnabledTransitionPairs, 6 FixpointIterations, 31 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 72 TotalNumberOfCompositions, 954 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 727, independent: 645, independent conditional: 0, independent unconditional: 645, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 443, independent: 423, independent conditional: 0, independent unconditional: 423, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 443, independent: 408, independent conditional: 0, independent unconditional: 408, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 35, independent: 15, independent conditional: 0, independent unconditional: 15, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 97, independent: 31, independent conditional: 0, independent unconditional: 31, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 727, independent: 222, independent conditional: 0, independent unconditional: 222, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 443, unknown conditional: 0, unknown unconditional: 443] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 88 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 3 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 10, 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, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-17 15:32:06,679 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...