/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 03:56:43,394 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 03:56:43,476 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-VariableLbe.epf [2023-08-25 03:56:43,481 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 03:56:43,481 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 03:56:43,512 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 03:56:43,513 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 03:56:43,513 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 03:56:43,514 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 03:56:43,517 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 03:56:43,517 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 03:56:43,518 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 03:56:43,518 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 03:56:43,519 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 03:56:43,519 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 03:56:43,519 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 03:56:43,519 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 03:56:43,520 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 03:56:43,520 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 03:56:43,520 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 03:56:43,520 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 03:56:43,521 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 03:56:43,521 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 03:56:43,522 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 03:56:43,522 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 03:56:43,522 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 03:56:43,522 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 03:56:43,522 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:56:43,523 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 03:56:43,523 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 03:56:43,524 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 03:56:43,524 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 03:56:43,524 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 03:56:43,524 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 03:56:43,524 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 03:56:43,525 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 03:56:43,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 03:56:43,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 03:56:43,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 03:56:43,875 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 03:56:43,875 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 03:56:43,876 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2023-08-25 03:56:45,186 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 03:56:45,470 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 03:56:45,470 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2023-08-25 03:56:45,496 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a477c79a/382817748b9b48b88b38f859ba43a6d9/FLAGa2cea68eb [2023-08-25 03:56:45,513 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a477c79a/382817748b9b48b88b38f859ba43a6d9 [2023-08-25 03:56:45,517 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 03:56:45,519 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 03:56:45,521 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 03:56:45,521 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 03:56:45,523 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 03:56:45,525 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:56:45" (1/1) ... [2023-08-25 03:56:45,525 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2510554a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:45, skipping insertion in model container [2023-08-25 03:56:45,526 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:56:45" (1/1) ... [2023-08-25 03:56:45,579 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 03:56:45,882 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:56:45,896 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 03:56:45,923 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [231] [2023-08-25 03:56:45,925 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-25 03:56:45,939 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:56:45,973 INFO L206 MainTranslator]: Completed translation [2023-08-25 03:56:45,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:45 WrapperNode [2023-08-25 03:56:45,974 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 03:56:45,975 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 03:56:45,975 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 03:56:45,975 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 03:56:45,980 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:45" (1/1) ... [2023-08-25 03:56:45,994 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:45" (1/1) ... [2023-08-25 03:56:46,023 INFO L138 Inliner]: procedures = 162, calls = 41, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 86 [2023-08-25 03:56:46,023 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 03:56:46,024 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 03:56:46,024 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 03:56:46,024 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 03:56:46,031 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:45" (1/1) ... [2023-08-25 03:56:46,031 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:45" (1/1) ... [2023-08-25 03:56:46,034 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:45" (1/1) ... [2023-08-25 03:56:46,034 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:45" (1/1) ... [2023-08-25 03:56:46,040 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:45" (1/1) ... [2023-08-25 03:56:46,041 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:45" (1/1) ... [2023-08-25 03:56:46,043 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:45" (1/1) ... [2023-08-25 03:56:46,044 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:45" (1/1) ... [2023-08-25 03:56:46,046 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 03:56:46,047 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 03:56:46,047 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 03:56:46,047 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 03:56:46,048 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:45" (1/1) ... [2023-08-25 03:56:46,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:56:46,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:56:46,094 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) [2023-08-25 03:56:46,103 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 [2023-08-25 03:56:46,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 03:56:46,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 03:56:46,128 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 03:56:46,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 03:56:46,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 03:56:46,129 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 03:56:46,129 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 03:56:46,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 03:56:46,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 03:56:46,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 03:56:46,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 03:56:46,130 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 03:56:46,238 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 03:56:46,239 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 03:56:46,479 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 03:56:46,486 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 03:56:46,486 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 03:56:46,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:56:46 BoogieIcfgContainer [2023-08-25 03:56:46,488 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 03:56:46,489 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 03:56:46,490 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 03:56:46,492 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 03:56:46,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 03:56:45" (1/3) ... [2023-08-25 03:56:46,493 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7999a9cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:56:46, skipping insertion in model container [2023-08-25 03:56:46,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:45" (2/3) ... [2023-08-25 03:56:46,493 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7999a9cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:56:46, skipping insertion in model container [2023-08-25 03:56:46,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:56:46" (3/3) ... [2023-08-25 03:56:46,495 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2023-08-25 03:56:46,510 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 03:56:46,510 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-08-25 03:56:46,510 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 03:56:46,563 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-25 03:56:46,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 122 transitions, 252 flow [2023-08-25 03:56:46,664 INFO L124 PetriNetUnfolderBase]: 4/121 cut-off events. [2023-08-25 03:56:46,664 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 03:56:46,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 121 events. 4/121 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 108 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 78. Up to 2 conditions per place. [2023-08-25 03:56:46,672 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 122 transitions, 252 flow [2023-08-25 03:56:46,676 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 114 places, 114 transitions, 231 flow [2023-08-25 03:56:46,678 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 03:56:46,685 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 114 transitions, 231 flow [2023-08-25 03:56:46,688 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 114 places, 114 transitions, 231 flow [2023-08-25 03:56:46,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 114 places, 114 transitions, 231 flow [2023-08-25 03:56:46,712 INFO L124 PetriNetUnfolderBase]: 4/114 cut-off events. [2023-08-25 03:56:46,713 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:56:46,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 114 events. 4/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 108 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 78. Up to 2 conditions per place. [2023-08-25 03:56:46,715 INFO L119 LiptonReduction]: Number of co-enabled transitions 2754 [2023-08-25 03:56:49,675 INFO L134 LiptonReduction]: Checked pairs total: 12297 [2023-08-25 03:56:49,676 INFO L136 LiptonReduction]: Total number of compositions: 97 [2023-08-25 03:56:49,687 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 03:56:49,693 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=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@401b891, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 03:56:49,693 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-08-25 03:56:49,696 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 03:56:49,696 INFO L124 PetriNetUnfolderBase]: 1/11 cut-off events. [2023-08-25 03:56:49,696 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:56:49,697 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:56:49,697 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 03:56:49,698 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-08-25 03:56:49,702 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:56:49,702 INFO L85 PathProgramCache]: Analyzing trace with hash -610533326, now seen corresponding path program 1 times [2023-08-25 03:56:49,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:56:49,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252452615] [2023-08-25 03:56:49,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:56:49,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:56:49,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:56:49,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:56:49,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:56:49,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252452615] [2023-08-25 03:56:49,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252452615] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:56:49,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:56:49,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:56:49,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072339472] [2023-08-25 03:56:49,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:56:49,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:56:49,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:56:49,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:56:49,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:56:49,927 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 219 [2023-08-25 03:56:49,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 46 transitions, 95 flow. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 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) [2023-08-25 03:56:49,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:56:49,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 219 [2023-08-25 03:56:49,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:56:50,139 INFO L124 PetriNetUnfolderBase]: 296/742 cut-off events. [2023-08-25 03:56:50,140 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:56:50,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1393 conditions, 742 events. 296/742 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4082 event pairs, 36 based on Foata normal form. 0/590 useless extension candidates. Maximal degree in co-relation 1384. Up to 346 conditions per place. [2023-08-25 03:56:50,146 INFO L140 encePairwiseOnDemand]: 207/219 looper letters, 51 selfloop transitions, 6 changer transitions 0/63 dead transitions. [2023-08-25 03:56:50,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 63 transitions, 243 flow [2023-08-25 03:56:50,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:56:50,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:56:50,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 371 transitions. [2023-08-25 03:56:50,159 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5646879756468798 [2023-08-25 03:56:50,160 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 371 transitions. [2023-08-25 03:56:50,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 371 transitions. [2023-08-25 03:56:50,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:56:50,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 371 transitions. [2023-08-25 03:56:50,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 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) [2023-08-25 03:56:50,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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) [2023-08-25 03:56:50,172 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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) [2023-08-25 03:56:50,173 INFO L175 Difference]: Start difference. First operand has 46 places, 46 transitions, 95 flow. Second operand 3 states and 371 transitions. [2023-08-25 03:56:50,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 63 transitions, 243 flow [2023-08-25 03:56:50,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 63 transitions, 242 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 03:56:50,177 INFO L231 Difference]: Finished difference. Result has 45 places, 43 transitions, 126 flow [2023-08-25 03:56:50,179 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=45, PETRI_TRANSITIONS=43} [2023-08-25 03:56:50,182 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2023-08-25 03:56:50,182 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 43 transitions, 126 flow [2023-08-25 03:56:50,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 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) [2023-08-25 03:56:50,182 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:56:50,182 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:56:50,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 03:56:50,183 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-08-25 03:56:50,183 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:56:50,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1746663513, now seen corresponding path program 1 times [2023-08-25 03:56:50,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:56:50,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126976603] [2023-08-25 03:56:50,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:56:50,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:56:50,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:56:50,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:56:50,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:56:50,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126976603] [2023-08-25 03:56:50,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126976603] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:56:50,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:56:50,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 03:56:50,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635724438] [2023-08-25 03:56:50,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:56:50,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:56:50,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:56:50,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:56:50,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:56:50,367 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 219 [2023-08-25 03:56:50,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 43 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 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) [2023-08-25 03:56:50,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:56:50,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 219 [2023-08-25 03:56:50,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:56:50,457 INFO L124 PetriNetUnfolderBase]: 188/566 cut-off events. [2023-08-25 03:56:50,457 INFO L125 PetriNetUnfolderBase]: For 99/101 co-relation queries the response was YES. [2023-08-25 03:56:50,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1147 conditions, 566 events. 188/566 cut-off events. For 99/101 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3135 event pairs, 112 based on Foata normal form. 2/523 useless extension candidates. Maximal degree in co-relation 1137. Up to 293 conditions per place. [2023-08-25 03:56:50,462 INFO L140 encePairwiseOnDemand]: 214/219 looper letters, 39 selfloop transitions, 3 changer transitions 0/56 dead transitions. [2023-08-25 03:56:50,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 56 transitions, 246 flow [2023-08-25 03:56:50,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:56:50,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:56:50,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2023-08-25 03:56:50,468 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.558599695585997 [2023-08-25 03:56:50,468 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 367 transitions. [2023-08-25 03:56:50,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions. [2023-08-25 03:56:50,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:56:50,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions. [2023-08-25 03:56:50,471 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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) [2023-08-25 03:56:50,473 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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) [2023-08-25 03:56:50,474 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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) [2023-08-25 03:56:50,474 INFO L175 Difference]: Start difference. First operand has 45 places, 43 transitions, 126 flow. Second operand 3 states and 367 transitions. [2023-08-25 03:56:50,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 56 transitions, 246 flow [2023-08-25 03:56:50,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 56 transitions, 230 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 03:56:50,479 INFO L231 Difference]: Finished difference. Result has 46 places, 43 transitions, 127 flow [2023-08-25 03:56:50,479 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=127, PETRI_PLACES=46, PETRI_TRANSITIONS=43} [2023-08-25 03:56:50,480 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 0 predicate places. [2023-08-25 03:56:50,480 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 43 transitions, 127 flow [2023-08-25 03:56:50,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 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) [2023-08-25 03:56:50,481 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:56:50,481 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:56:50,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 03:56:50,482 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-08-25 03:56:50,484 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:56:50,485 INFO L85 PathProgramCache]: Analyzing trace with hash 111551685, now seen corresponding path program 1 times [2023-08-25 03:56:50,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:56:50,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166244265] [2023-08-25 03:56:50,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:56:50,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:56:50,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:56:50,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:56:50,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:56:50,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166244265] [2023-08-25 03:56:50,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166244265] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:56:50,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:56:50,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:56:50,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621456660] [2023-08-25 03:56:50,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:56:50,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:56:50,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:56:50,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:56:50,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:56:50,567 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 219 [2023-08-25 03:56:50,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 43 transitions, 127 flow. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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) [2023-08-25 03:56:50,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:56:50,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 219 [2023-08-25 03:56:50,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:56:50,693 INFO L124 PetriNetUnfolderBase]: 263/674 cut-off events. [2023-08-25 03:56:50,694 INFO L125 PetriNetUnfolderBase]: For 170/175 co-relation queries the response was YES. [2023-08-25 03:56:50,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1486 conditions, 674 events. 263/674 cut-off events. For 170/175 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3606 event pairs, 184 based on Foata normal form. 0/580 useless extension candidates. Maximal degree in co-relation 1474. Up to 548 conditions per place. [2023-08-25 03:56:50,698 INFO L140 encePairwiseOnDemand]: 214/219 looper letters, 51 selfloop transitions, 6 changer transitions 0/63 dead transitions. [2023-08-25 03:56:50,698 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 63 transitions, 299 flow [2023-08-25 03:56:50,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:56:50,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:56:50,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 352 transitions. [2023-08-25 03:56:50,700 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5357686453576864 [2023-08-25 03:56:50,700 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 352 transitions. [2023-08-25 03:56:50,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 352 transitions. [2023-08-25 03:56:50,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:56:50,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 352 transitions. [2023-08-25 03:56:50,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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) [2023-08-25 03:56:50,703 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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) [2023-08-25 03:56:50,703 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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) [2023-08-25 03:56:50,703 INFO L175 Difference]: Start difference. First operand has 46 places, 43 transitions, 127 flow. Second operand 3 states and 352 transitions. [2023-08-25 03:56:50,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 63 transitions, 299 flow [2023-08-25 03:56:50,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 63 transitions, 293 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 03:56:50,708 INFO L231 Difference]: Finished difference. Result has 47 places, 47 transitions, 163 flow [2023-08-25 03:56:50,708 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=163, PETRI_PLACES=47, PETRI_TRANSITIONS=47} [2023-08-25 03:56:50,709 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 1 predicate places. [2023-08-25 03:56:50,709 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 47 transitions, 163 flow [2023-08-25 03:56:50,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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) [2023-08-25 03:56:50,709 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:56:50,710 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:56:50,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 03:56:50,710 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-08-25 03:56:50,710 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:56:50,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1442005321, now seen corresponding path program 1 times [2023-08-25 03:56:50,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:56:50,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256492453] [2023-08-25 03:56:50,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:56:50,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:56:50,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:56:50,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:56:50,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:56:50,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256492453] [2023-08-25 03:56:50,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256492453] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:56:50,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:56:50,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 03:56:50,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912949860] [2023-08-25 03:56:50,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:56:50,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:56:50,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:56:50,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:56:50,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:56:50,783 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 219 [2023-08-25 03:56:50,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 47 transitions, 163 flow. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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) [2023-08-25 03:56:50,799 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:56:50,800 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 219 [2023-08-25 03:56:50,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:56:50,941 INFO L124 PetriNetUnfolderBase]: 341/811 cut-off events. [2023-08-25 03:56:50,941 INFO L125 PetriNetUnfolderBase]: For 253/261 co-relation queries the response was YES. [2023-08-25 03:56:50,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1902 conditions, 811 events. 341/811 cut-off events. For 253/261 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4360 event pairs, 151 based on Foata normal form. 8/777 useless extension candidates. Maximal degree in co-relation 1890. Up to 593 conditions per place. [2023-08-25 03:56:50,945 INFO L140 encePairwiseOnDemand]: 209/219 looper letters, 58 selfloop transitions, 10 changer transitions 0/76 dead transitions. [2023-08-25 03:56:50,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 76 transitions, 382 flow [2023-08-25 03:56:50,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:56:50,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:56:50,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 337 transitions. [2023-08-25 03:56:50,947 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.512937595129376 [2023-08-25 03:56:50,947 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 337 transitions. [2023-08-25 03:56:50,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 337 transitions. [2023-08-25 03:56:50,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:56:50,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 337 transitions. [2023-08-25 03:56:50,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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) [2023-08-25 03:56:50,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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) [2023-08-25 03:56:50,950 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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) [2023-08-25 03:56:50,950 INFO L175 Difference]: Start difference. First operand has 47 places, 47 transitions, 163 flow. Second operand 3 states and 337 transitions. [2023-08-25 03:56:50,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 76 transitions, 382 flow [2023-08-25 03:56:50,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 76 transitions, 371 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-25 03:56:50,954 INFO L231 Difference]: Finished difference. Result has 49 places, 53 transitions, 205 flow [2023-08-25 03:56:50,954 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=205, PETRI_PLACES=49, PETRI_TRANSITIONS=53} [2023-08-25 03:56:50,954 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 3 predicate places. [2023-08-25 03:56:50,955 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 53 transitions, 205 flow [2023-08-25 03:56:50,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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) [2023-08-25 03:56:50,955 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:56:50,955 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:56:50,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 03:56:50,955 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-08-25 03:56:50,956 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:56:50,956 INFO L85 PathProgramCache]: Analyzing trace with hash 905694013, now seen corresponding path program 1 times [2023-08-25 03:56:50,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:56:50,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660335082] [2023-08-25 03:56:50,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:56:50,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:56:50,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:56:50,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:56:50,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:56:50,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660335082] [2023-08-25 03:56:50,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660335082] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:56:50,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:56:50,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:56:50,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259737326] [2023-08-25 03:56:50,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:56:50,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:56:50,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:56:50,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:56:50,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:56:50,986 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 219 [2023-08-25 03:56:50,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 53 transitions, 205 flow. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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) [2023-08-25 03:56:50,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:56:50,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 219 [2023-08-25 03:56:50,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:56:51,104 INFO L124 PetriNetUnfolderBase]: 291/734 cut-off events. [2023-08-25 03:56:51,104 INFO L125 PetriNetUnfolderBase]: For 253/264 co-relation queries the response was YES. [2023-08-25 03:56:51,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1933 conditions, 734 events. 291/734 cut-off events. For 253/264 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4099 event pairs, 182 based on Foata normal form. 2/654 useless extension candidates. Maximal degree in co-relation 1920. Up to 595 conditions per place. [2023-08-25 03:56:51,109 INFO L140 encePairwiseOnDemand]: 214/219 looper letters, 55 selfloop transitions, 6 changer transitions 0/71 dead transitions. [2023-08-25 03:56:51,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 71 transitions, 391 flow [2023-08-25 03:56:51,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:56:51,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:56:51,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 350 transitions. [2023-08-25 03:56:51,111 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.532724505327245 [2023-08-25 03:56:51,111 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 350 transitions. [2023-08-25 03:56:51,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 350 transitions. [2023-08-25 03:56:51,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:56:51,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 350 transitions. [2023-08-25 03:56:51,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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) [2023-08-25 03:56:51,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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) [2023-08-25 03:56:51,114 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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) [2023-08-25 03:56:51,115 INFO L175 Difference]: Start difference. First operand has 49 places, 53 transitions, 205 flow. Second operand 3 states and 350 transitions. [2023-08-25 03:56:51,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 71 transitions, 391 flow [2023-08-25 03:56:51,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 71 transitions, 379 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 03:56:51,118 INFO L231 Difference]: Finished difference. Result has 51 places, 57 transitions, 241 flow [2023-08-25 03:56:51,118 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=241, PETRI_PLACES=51, PETRI_TRANSITIONS=57} [2023-08-25 03:56:51,119 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 5 predicate places. [2023-08-25 03:56:51,119 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 57 transitions, 241 flow [2023-08-25 03:56:51,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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) [2023-08-25 03:56:51,119 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:56:51,120 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:56:51,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 03:56:51,120 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-08-25 03:56:51,120 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:56:51,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1700122472, now seen corresponding path program 1 times [2023-08-25 03:56:51,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:56:51,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235153431] [2023-08-25 03:56:51,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:56:51,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:56:51,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:56:51,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:56:51,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:56:51,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235153431] [2023-08-25 03:56:51,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235153431] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:56:51,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:56:51,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 03:56:51,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532467953] [2023-08-25 03:56:51,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:56:51,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 03:56:51,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:56:51,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 03:56:51,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 03:56:51,260 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 219 [2023-08-25 03:56:51,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 57 transitions, 241 flow. Second operand has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 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) [2023-08-25 03:56:51,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:56:51,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 219 [2023-08-25 03:56:51,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:56:51,363 INFO L124 PetriNetUnfolderBase]: 164/458 cut-off events. [2023-08-25 03:56:51,363 INFO L125 PetriNetUnfolderBase]: For 221/221 co-relation queries the response was YES. [2023-08-25 03:56:51,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1254 conditions, 458 events. 164/458 cut-off events. For 221/221 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2146 event pairs, 39 based on Foata normal form. 41/463 useless extension candidates. Maximal degree in co-relation 1240. Up to 230 conditions per place. [2023-08-25 03:56:51,365 INFO L140 encePairwiseOnDemand]: 208/219 looper letters, 52 selfloop transitions, 16 changer transitions 2/72 dead transitions. [2023-08-25 03:56:51,365 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 72 transitions, 431 flow [2023-08-25 03:56:51,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 03:56:51,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 03:56:51,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 404 transitions. [2023-08-25 03:56:51,367 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4611872146118721 [2023-08-25 03:56:51,367 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 404 transitions. [2023-08-25 03:56:51,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 404 transitions. [2023-08-25 03:56:51,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:56:51,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 404 transitions. [2023-08-25 03:56:51,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 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) [2023-08-25 03:56:51,370 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 219.0) internal successors, (1095), 5 states have internal predecessors, (1095), 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) [2023-08-25 03:56:51,372 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 219.0) internal successors, (1095), 5 states have internal predecessors, (1095), 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) [2023-08-25 03:56:51,372 INFO L175 Difference]: Start difference. First operand has 51 places, 57 transitions, 241 flow. Second operand 4 states and 404 transitions. [2023-08-25 03:56:51,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 72 transitions, 431 flow [2023-08-25 03:56:51,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 72 transitions, 379 flow, removed 12 selfloop flow, removed 5 redundant places. [2023-08-25 03:56:51,377 INFO L231 Difference]: Finished difference. Result has 46 places, 50 transitions, 232 flow [2023-08-25 03:56:51,377 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=232, PETRI_PLACES=46, PETRI_TRANSITIONS=50} [2023-08-25 03:56:51,379 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 0 predicate places. [2023-08-25 03:56:51,379 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 50 transitions, 232 flow [2023-08-25 03:56:51,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 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) [2023-08-25 03:56:51,380 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:56:51,380 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:56:51,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 03:56:51,380 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-08-25 03:56:51,381 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:56:51,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1914273768, now seen corresponding path program 2 times [2023-08-25 03:56:51,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:56:51,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305953644] [2023-08-25 03:56:51,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:56:51,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:56:51,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:56:51,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:56:51,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:56:51,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305953644] [2023-08-25 03:56:51,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305953644] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:56:51,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:56:51,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 03:56:51,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118185394] [2023-08-25 03:56:51,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:56:51,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 03:56:51,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:56:51,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 03:56:51,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-25 03:56:51,502 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 219 [2023-08-25 03:56:51,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 50 transitions, 232 flow. Second operand has 5 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 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) [2023-08-25 03:56:51,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:56:51,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 219 [2023-08-25 03:56:51,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:56:51,601 INFO L124 PetriNetUnfolderBase]: 120/365 cut-off events. [2023-08-25 03:56:51,601 INFO L125 PetriNetUnfolderBase]: For 169/169 co-relation queries the response was YES. [2023-08-25 03:56:51,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1087 conditions, 365 events. 120/365 cut-off events. For 169/169 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1574 event pairs, 38 based on Foata normal form. 2/367 useless extension candidates. Maximal degree in co-relation 1073. Up to 198 conditions per place. [2023-08-25 03:56:51,603 INFO L140 encePairwiseOnDemand]: 212/219 looper letters, 60 selfloop transitions, 10 changer transitions 0/72 dead transitions. [2023-08-25 03:56:51,603 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 72 transitions, 459 flow [2023-08-25 03:56:51,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 03:56:51,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 03:56:51,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 400 transitions. [2023-08-25 03:56:51,605 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45662100456621 [2023-08-25 03:56:51,605 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 400 transitions. [2023-08-25 03:56:51,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 400 transitions. [2023-08-25 03:56:51,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:56:51,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 400 transitions. [2023-08-25 03:56:51,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 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) [2023-08-25 03:56:51,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 219.0) internal successors, (1095), 5 states have internal predecessors, (1095), 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) [2023-08-25 03:56:51,608 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 219.0) internal successors, (1095), 5 states have internal predecessors, (1095), 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) [2023-08-25 03:56:51,608 INFO L175 Difference]: Start difference. First operand has 46 places, 50 transitions, 232 flow. Second operand 4 states and 400 transitions. [2023-08-25 03:56:51,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 72 transitions, 459 flow [2023-08-25 03:56:51,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 72 transitions, 458 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 03:56:51,610 INFO L231 Difference]: Finished difference. Result has 47 places, 50 transitions, 266 flow [2023-08-25 03:56:51,610 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=266, PETRI_PLACES=47, PETRI_TRANSITIONS=50} [2023-08-25 03:56:51,611 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 1 predicate places. [2023-08-25 03:56:51,611 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 50 transitions, 266 flow [2023-08-25 03:56:51,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 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) [2023-08-25 03:56:51,611 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:56:51,611 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:56:51,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 03:56:51,612 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-08-25 03:56:51,612 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:56:51,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1385122813, now seen corresponding path program 1 times [2023-08-25 03:56:51,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:56:51,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363377079] [2023-08-25 03:56:51,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:56:51,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:56:51,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:56:51,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:56:51,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:56:51,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363377079] [2023-08-25 03:56:51,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363377079] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:56:51,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:56:51,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:56:51,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393918507] [2023-08-25 03:56:51,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:56:51,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:56:51,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:56:51,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:56:51,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:56:51,700 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 219 [2023-08-25 03:56:51,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 50 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 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) [2023-08-25 03:56:51,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:56:51,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 219 [2023-08-25 03:56:51,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:56:51,757 INFO L124 PetriNetUnfolderBase]: 57/242 cut-off events. [2023-08-25 03:56:51,757 INFO L125 PetriNetUnfolderBase]: For 256/263 co-relation queries the response was YES. [2023-08-25 03:56:51,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 830 conditions, 242 events. 57/242 cut-off events. For 256/263 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 986 event pairs, 20 based on Foata normal form. 37/277 useless extension candidates. Maximal degree in co-relation 814. Up to 137 conditions per place. [2023-08-25 03:56:51,758 INFO L140 encePairwiseOnDemand]: 217/219 looper letters, 16 selfloop transitions, 0 changer transitions 37/60 dead transitions. [2023-08-25 03:56:51,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 60 transitions, 398 flow [2023-08-25 03:56:51,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:56:51,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:56:51,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 340 transitions. [2023-08-25 03:56:51,760 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.517503805175038 [2023-08-25 03:56:51,760 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 340 transitions. [2023-08-25 03:56:51,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 340 transitions. [2023-08-25 03:56:51,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:56:51,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 340 transitions. [2023-08-25 03:56:51,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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) [2023-08-25 03:56:51,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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) [2023-08-25 03:56:51,762 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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) [2023-08-25 03:56:51,762 INFO L175 Difference]: Start difference. First operand has 47 places, 50 transitions, 266 flow. Second operand 3 states and 340 transitions. [2023-08-25 03:56:51,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 60 transitions, 398 flow [2023-08-25 03:56:51,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 60 transitions, 397 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 03:56:51,765 INFO L231 Difference]: Finished difference. Result has 47 places, 23 transitions, 104 flow [2023-08-25 03:56:51,765 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=263, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=47, PETRI_TRANSITIONS=23} [2023-08-25 03:56:51,765 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 1 predicate places. [2023-08-25 03:56:51,765 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 23 transitions, 104 flow [2023-08-25 03:56:51,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 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) [2023-08-25 03:56:51,766 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:56:51,766 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:56:51,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 03:56:51,766 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-08-25 03:56:51,766 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:56:51,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1900372322, now seen corresponding path program 1 times [2023-08-25 03:56:51,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:56:51,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505781044] [2023-08-25 03:56:51,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:56:51,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:56:51,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:56:51,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:56:51,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:56:51,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505781044] [2023-08-25 03:56:51,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505781044] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:56:51,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:56:51,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:56:51,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738844949] [2023-08-25 03:56:51,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:56:51,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:56:51,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:56:51,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:56:51,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:56:51,952 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 219 [2023-08-25 03:56:51,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 23 transitions, 104 flow. Second operand has 6 states, 6 states have (on average 83.16666666666667) internal successors, (499), 6 states have internal predecessors, (499), 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) [2023-08-25 03:56:51,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:56:51,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 219 [2023-08-25 03:56:51,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:56:51,989 INFO L124 PetriNetUnfolderBase]: 8/42 cut-off events. [2023-08-25 03:56:51,990 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2023-08-25 03:56:51,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 42 events. 8/42 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 14/56 useless extension candidates. Maximal degree in co-relation 134. Up to 33 conditions per place. [2023-08-25 03:56:51,990 INFO L140 encePairwiseOnDemand]: 216/219 looper letters, 0 selfloop transitions, 0 changer transitions 26/26 dead transitions. [2023-08-25 03:56:51,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 26 transitions, 176 flow [2023-08-25 03:56:51,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 03:56:51,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 03:56:51,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 345 transitions. [2023-08-25 03:56:51,992 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3938356164383562 [2023-08-25 03:56:51,992 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 345 transitions. [2023-08-25 03:56:51,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 345 transitions. [2023-08-25 03:56:51,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:56:51,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 345 transitions. [2023-08-25 03:56:51,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 86.25) internal successors, (345), 4 states have internal predecessors, (345), 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) [2023-08-25 03:56:51,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 219.0) internal successors, (1095), 5 states have internal predecessors, (1095), 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) [2023-08-25 03:56:51,995 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 219.0) internal successors, (1095), 5 states have internal predecessors, (1095), 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) [2023-08-25 03:56:51,995 INFO L175 Difference]: Start difference. First operand has 47 places, 23 transitions, 104 flow. Second operand 4 states and 345 transitions. [2023-08-25 03:56:51,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 26 transitions, 176 flow [2023-08-25 03:56:51,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 26 transitions, 143 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-25 03:56:51,996 INFO L231 Difference]: Finished difference. Result has 30 places, 0 transitions, 0 flow [2023-08-25 03:56:51,996 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=30, PETRI_TRANSITIONS=0} [2023-08-25 03:56:51,997 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -16 predicate places. [2023-08-25 03:56:51,997 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 0 transitions, 0 flow [2023-08-25 03:56:51,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.16666666666667) internal successors, (499), 6 states have internal predecessors, (499), 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) [2023-08-25 03:56:52,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 10 remaining) [2023-08-25 03:56:52,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (8 of 10 remaining) [2023-08-25 03:56:52,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2023-08-25 03:56:52,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONASSERT (6 of 10 remaining) [2023-08-25 03:56:52,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2023-08-25 03:56:52,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2023-08-25 03:56:52,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2023-08-25 03:56:52,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2023-08-25 03:56:52,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2023-08-25 03:56:52,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2023-08-25 03:56:52,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 03:56:52,002 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:56:52,006 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 03:56:52,006 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 03:56:52,008 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 03:56:52 BasicIcfg [2023-08-25 03:56:52,008 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 03:56:52,009 INFO L158 Benchmark]: Toolchain (without parser) took 6490.15ms. Allocated memory was 348.1MB in the beginning and 423.6MB in the end (delta: 75.5MB). Free memory was 322.8MB in the beginning and 360.9MB in the end (delta: -38.1MB). Peak memory consumption was 38.2MB. Max. memory is 16.0GB. [2023-08-25 03:56:52,009 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 348.1MB. Free memory was 325.6MB in the beginning and 325.4MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 03:56:52,009 INFO L158 Benchmark]: CACSL2BoogieTranslator took 453.15ms. Allocated memory is still 348.1MB. Free memory was 322.8MB in the beginning and 303.2MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 03:56:52,009 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.92ms. Allocated memory is still 348.1MB. Free memory was 303.2MB in the beginning and 301.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 03:56:52,010 INFO L158 Benchmark]: Boogie Preprocessor took 22.46ms. Allocated memory is still 348.1MB. Free memory was 301.1MB in the beginning and 299.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 03:56:52,010 INFO L158 Benchmark]: RCFGBuilder took 440.78ms. Allocated memory is still 348.1MB. Free memory was 299.0MB in the beginning and 283.0MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-25 03:56:52,010 INFO L158 Benchmark]: TraceAbstraction took 5518.81ms. Allocated memory was 348.1MB in the beginning and 423.6MB in the end (delta: 75.5MB). Free memory was 282.2MB in the beginning and 360.9MB in the end (delta: -78.7MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 03:56:52,011 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 348.1MB. Free memory was 325.6MB in the beginning and 325.4MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 453.15ms. Allocated memory is still 348.1MB. Free memory was 322.8MB in the beginning and 303.2MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 48.92ms. Allocated memory is still 348.1MB. Free memory was 303.2MB in the beginning and 301.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 22.46ms. Allocated memory is still 348.1MB. Free memory was 301.1MB in the beginning and 299.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 440.78ms. Allocated memory is still 348.1MB. Free memory was 299.0MB in the beginning and 283.0MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 5518.81ms. Allocated memory was 348.1MB in the beginning and 423.6MB in the end (delta: 75.5MB). Free memory was 282.2MB in the beginning and 360.9MB in the end (delta: -78.7MB). There was no memory consumed. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 231]: Unsoundness Warning unspecified type, defaulting to int C: short [231] - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 114 PlacesBefore, 46 PlacesAfterwards, 114 TransitionsBefore, 46 TransitionsAfterwards, 2754 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 57 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 97 TotalNumberOfCompositions, 12297 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3586, independent: 3120, independent conditional: 0, independent unconditional: 3120, dependent: 466, dependent conditional: 0, dependent unconditional: 466, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1468, independent: 1396, independent conditional: 0, independent unconditional: 1396, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3586, independent: 1724, independent conditional: 0, independent unconditional: 1724, dependent: 394, dependent conditional: 0, dependent unconditional: 394, unknown: 1468, unknown conditional: 0, unknown unconditional: 1468] , Statistics on independence cache: Total cache size (in pairs): 188, Positive cache size: 145, Positive conditional cache size: 0, Positive unconditional cache size: 145, Negative cache size: 43, Negative conditional cache size: 0, Negative unconditional cache size: 43, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 703]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 708]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 689]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 692]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 148 locations, 10 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: 5.4s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 184 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 184 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 582 IncrementalHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 20 mSDtfsCounter, 582 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=266occurred in iteration=7, InterpolantAutomatonStates: 30, 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, 0.8s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 402 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 03:56:52,027 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...