/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 --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -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_03-priv_inv.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 07:35:23,633 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 07:35:23,714 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 [2023-08-26 07:35:23,720 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 07:35:23,720 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 07:35:23,757 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 07:35:23,757 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 07:35:23,762 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 07:35:23,763 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 07:35:23,766 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 07:35:23,766 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 07:35:23,767 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 07:35:23,767 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 07:35:23,768 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 07:35:23,768 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 07:35:23,768 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 07:35:23,769 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 07:35:23,769 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 07:35:23,769 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 07:35:23,769 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 07:35:23,769 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 07:35:23,770 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 07:35:23,770 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 07:35:23,771 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 07:35:23,771 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 07:35:23,771 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 07:35:23,771 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 07:35:23,771 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 07:35:23,772 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 07:35:23,772 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 07:35:23,773 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 07:35:23,773 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 07:35:23,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 07:35:23,773 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 07:35:23,774 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 07:35:23,774 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 07:35:24,099 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 07:35:24,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 07:35:24,119 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 07:35:24,119 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 07:35:24,120 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 07:35:24,121 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_03-priv_inv.i [2023-08-26 07:35:25,311 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 07:35:25,560 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 07:35:25,561 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_03-priv_inv.i [2023-08-26 07:35:25,572 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f61bf36e6/88bdcc6b66704e1b9e825d28773cbe2a/FLAG840cdd24d [2023-08-26 07:35:25,582 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f61bf36e6/88bdcc6b66704e1b9e825d28773cbe2a [2023-08-26 07:35:25,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 07:35:25,585 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 07:35:25,586 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 07:35:25,586 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 07:35:25,588 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 07:35:25,589 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 07:35:25" (1/1) ... [2023-08-26 07:35:25,590 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42b3c14a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:35:25, skipping insertion in model container [2023-08-26 07:35:25,590 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 07:35:25" (1/1) ... [2023-08-26 07:35:25,631 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 07:35:25,948 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 07:35:25,961 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 07:35:25,989 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-26 07:35:25,990 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-26 07:35:26,018 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 07:35:26,057 INFO L206 MainTranslator]: Completed translation [2023-08-26 07:35:26,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:35:26 WrapperNode [2023-08-26 07:35:26,058 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 07:35:26,059 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 07:35:26,060 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 07:35:26,060 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 07:35:26,066 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:35:26" (1/1) ... [2023-08-26 07:35:26,093 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:35:26" (1/1) ... [2023-08-26 07:35:26,119 INFO L138 Inliner]: procedures = 165, calls = 34, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 83 [2023-08-26 07:35:26,120 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 07:35:26,120 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 07:35:26,120 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 07:35:26,121 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 07:35:26,129 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:35:26" (1/1) ... [2023-08-26 07:35:26,129 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:35:26" (1/1) ... [2023-08-26 07:35:26,136 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:35:26" (1/1) ... [2023-08-26 07:35:26,136 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:35:26" (1/1) ... [2023-08-26 07:35:26,148 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:35:26" (1/1) ... [2023-08-26 07:35:26,150 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:35:26" (1/1) ... [2023-08-26 07:35:26,151 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:35:26" (1/1) ... [2023-08-26 07:35:26,152 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:35:26" (1/1) ... [2023-08-26 07:35:26,154 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 07:35:26,155 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 07:35:26,155 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 07:35:26,155 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 07:35:26,156 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:35:26" (1/1) ... [2023-08-26 07:35:26,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 07:35:26,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:35:26,198 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) [2023-08-26 07:35:26,216 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 [2023-08-26 07:35:26,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 07:35:26,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 07:35:26,235 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 07:35:26,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 07:35:26,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 07:35:26,236 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-26 07:35:26,236 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-26 07:35:26,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 07:35:26,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 07:35:26,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 07:35:26,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 07:35:26,238 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 07:35:26,368 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 07:35:26,369 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 07:35:26,520 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 07:35:26,527 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 07:35:26,527 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 07:35:26,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 07:35:26 BoogieIcfgContainer [2023-08-26 07:35:26,529 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 07:35:26,530 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 07:35:26,531 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 07:35:26,533 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 07:35:26,533 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 07:35:25" (1/3) ... [2023-08-26 07:35:26,534 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77698801 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 07:35:26, skipping insertion in model container [2023-08-26 07:35:26,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:35:26" (2/3) ... [2023-08-26 07:35:26,534 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77698801 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 07:35:26, skipping insertion in model container [2023-08-26 07:35:26,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 07:35:26" (3/3) ... [2023-08-26 07:35:26,535 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_03-priv_inv.i [2023-08-26 07:35:26,548 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 07:35:26,549 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-08-26 07:35:26,549 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 07:35:26,655 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-26 07:35:26,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 113 places, 112 transitions, 232 flow [2023-08-26 07:35:26,732 INFO L124 PetriNetUnfolderBase]: 3/111 cut-off events. [2023-08-26 07:35:26,732 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 07:35:26,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 111 events. 3/111 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 71 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2023-08-26 07:35:26,736 INFO L82 GeneralOperation]: Start removeDead. Operand has 113 places, 112 transitions, 232 flow [2023-08-26 07:35:26,740 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 104 transitions, 211 flow [2023-08-26 07:35:26,746 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 07:35:26,760 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 104 transitions, 211 flow [2023-08-26 07:35:26,766 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 104 transitions, 211 flow [2023-08-26 07:35:26,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 104 transitions, 211 flow [2023-08-26 07:35:26,803 INFO L124 PetriNetUnfolderBase]: 3/104 cut-off events. [2023-08-26 07:35:26,803 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:35:26,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 104 events. 3/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 71 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2023-08-26 07:35:26,805 INFO L119 LiptonReduction]: Number of co-enabled transitions 1216 [2023-08-26 07:35:30,403 INFO L134 LiptonReduction]: Checked pairs total: 7062 [2023-08-26 07:35:30,404 INFO L136 LiptonReduction]: Total number of compositions: 93 [2023-08-26 07:35:30,414 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 07:35:30,419 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;@5c360da5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 07:35:30,420 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-08-26 07:35:30,420 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 07:35:30,420 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-26 07:35:30,421 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:35:30,421 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:35:30,421 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 07:35:30,421 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-26 07:35:30,424 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:35:30,424 INFO L85 PathProgramCache]: Analyzing trace with hash 377, now seen corresponding path program 1 times [2023-08-26 07:35:30,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:35:30,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800629797] [2023-08-26 07:35:30,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:35:30,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:35:30,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:35:30,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:35:30,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:35:30,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800629797] [2023-08-26 07:35:30,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800629797] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:35:30,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:35:30,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 07:35:30,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854787644] [2023-08-26 07:35:30,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:35:30,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 07:35:30,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:35:30,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 07:35:30,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 07:35:30,535 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 205 [2023-08-26 07:35:30,537 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 32 transitions, 67 flow. Second operand has 2 states, 2 states have (on average 108.5) internal successors, (217), 2 states have internal predecessors, (217), 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) [2023-08-26 07:35:30,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:35:30,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 205 [2023-08-26 07:35:30,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:35:30,592 INFO L124 PetriNetUnfolderBase]: 46/148 cut-off events. [2023-08-26 07:35:30,592 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:35:30,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 148 events. 46/148 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 621 event pairs, 36 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 241. Up to 98 conditions per place. [2023-08-26 07:35:30,594 INFO L140 encePairwiseOnDemand]: 202/205 looper letters, 16 selfloop transitions, 0 changer transitions 0/29 dead transitions. [2023-08-26 07:35:30,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 29 transitions, 93 flow [2023-08-26 07:35:30,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 07:35:30,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 07:35:30,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 235 transitions. [2023-08-26 07:35:30,608 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.573170731707317 [2023-08-26 07:35:30,608 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 235 transitions. [2023-08-26 07:35:30,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 235 transitions. [2023-08-26 07:35:30,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:35:30,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 235 transitions. [2023-08-26 07:35:30,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 117.5) internal successors, (235), 2 states have internal predecessors, (235), 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) [2023-08-26 07:35:30,622 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 205.0) internal successors, (615), 3 states have internal predecessors, (615), 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) [2023-08-26 07:35:30,623 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 205.0) internal successors, (615), 3 states have internal predecessors, (615), 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) [2023-08-26 07:35:30,624 INFO L175 Difference]: Start difference. First operand has 35 places, 32 transitions, 67 flow. Second operand 2 states and 235 transitions. [2023-08-26 07:35:30,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 29 transitions, 93 flow [2023-08-26 07:35:30,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 29 transitions, 92 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 07:35:30,628 INFO L231 Difference]: Finished difference. Result has 32 places, 29 transitions, 60 flow [2023-08-26 07:35:30,630 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=60, PETRI_PLACES=32, PETRI_TRANSITIONS=29} [2023-08-26 07:35:30,634 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -3 predicate places. [2023-08-26 07:35:30,634 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 29 transitions, 60 flow [2023-08-26 07:35:30,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 108.5) internal successors, (217), 2 states have internal predecessors, (217), 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) [2023-08-26 07:35:30,635 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:35:30,635 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-26 07:35:30,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 07:35:30,636 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-26 07:35:30,636 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:35:30,636 INFO L85 PathProgramCache]: Analyzing trace with hash 357849172, now seen corresponding path program 1 times [2023-08-26 07:35:30,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:35:30,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031536137] [2023-08-26 07:35:30,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:35:30,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:35:30,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:35:30,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:35:30,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:35:30,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031536137] [2023-08-26 07:35:30,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031536137] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:35:30,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:35:30,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 07:35:30,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550341401] [2023-08-26 07:35:30,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:35:30,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:35:30,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:35:30,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:35:30,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:35:30,730 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 205 [2023-08-26 07:35:30,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 29 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 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) [2023-08-26 07:35:30,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:35:30,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 205 [2023-08-26 07:35:30,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:35:30,817 INFO L124 PetriNetUnfolderBase]: 126/327 cut-off events. [2023-08-26 07:35:30,817 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:35:30,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 607 conditions, 327 events. 126/327 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1565 event pairs, 40 based on Foata normal form. 0/249 useless extension candidates. Maximal degree in co-relation 604. Up to 147 conditions per place. [2023-08-26 07:35:30,820 INFO L140 encePairwiseOnDemand]: 195/205 looper letters, 36 selfloop transitions, 8 changer transitions 0/49 dead transitions. [2023-08-26 07:35:30,820 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 49 transitions, 188 flow [2023-08-26 07:35:30,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:35:30,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:35:30,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 316 transitions. [2023-08-26 07:35:30,823 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5138211382113821 [2023-08-26 07:35:30,823 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 316 transitions. [2023-08-26 07:35:30,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 316 transitions. [2023-08-26 07:35:30,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:35:30,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 316 transitions. [2023-08-26 07:35:30,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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) [2023-08-26 07:35:30,826 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 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) [2023-08-26 07:35:30,826 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 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) [2023-08-26 07:35:30,826 INFO L175 Difference]: Start difference. First operand has 32 places, 29 transitions, 60 flow. Second operand 3 states and 316 transitions. [2023-08-26 07:35:30,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 49 transitions, 188 flow [2023-08-26 07:35:30,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 49 transitions, 188 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 07:35:30,828 INFO L231 Difference]: Finished difference. Result has 36 places, 36 transitions, 124 flow [2023-08-26 07:35:30,828 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=36, PETRI_TRANSITIONS=36} [2023-08-26 07:35:30,829 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2023-08-26 07:35:30,829 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 36 transitions, 124 flow [2023-08-26 07:35:30,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 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) [2023-08-26 07:35:30,829 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:35:30,830 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-26 07:35:30,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 07:35:30,830 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-26 07:35:30,830 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:35:30,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1790461239, now seen corresponding path program 1 times [2023-08-26 07:35:30,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:35:30,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464113085] [2023-08-26 07:35:30,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:35:30,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:35:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:35:30,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:35:30,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:35:30,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464113085] [2023-08-26 07:35:30,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464113085] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:35:30,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:35:30,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 07:35:30,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327443520] [2023-08-26 07:35:30,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:35:30,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:35:30,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:35:30,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:35:30,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:35:30,903 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 205 [2023-08-26 07:35:30,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 36 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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) [2023-08-26 07:35:30,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:35:30,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 205 [2023-08-26 07:35:30,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:35:30,979 INFO L124 PetriNetUnfolderBase]: 129/341 cut-off events. [2023-08-26 07:35:30,979 INFO L125 PetriNetUnfolderBase]: For 151/158 co-relation queries the response was YES. [2023-08-26 07:35:30,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 801 conditions, 341 events. 129/341 cut-off events. For 151/158 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1669 event pairs, 70 based on Foata normal form. 2/277 useless extension candidates. Maximal degree in co-relation 796. Up to 246 conditions per place. [2023-08-26 07:35:30,984 INFO L140 encePairwiseOnDemand]: 199/205 looper letters, 36 selfloop transitions, 8 changer transitions 0/49 dead transitions. [2023-08-26 07:35:30,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 49 transitions, 262 flow [2023-08-26 07:35:30,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:35:30,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:35:30,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2023-08-26 07:35:30,986 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4813008130081301 [2023-08-26 07:35:30,986 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 296 transitions. [2023-08-26 07:35:30,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 296 transitions. [2023-08-26 07:35:30,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:35:30,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 296 transitions. [2023-08-26 07:35:30,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 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) [2023-08-26 07:35:30,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 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) [2023-08-26 07:35:30,991 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 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) [2023-08-26 07:35:30,991 INFO L175 Difference]: Start difference. First operand has 36 places, 36 transitions, 124 flow. Second operand 3 states and 296 transitions. [2023-08-26 07:35:30,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 49 transitions, 262 flow [2023-08-26 07:35:30,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 49 transitions, 238 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 07:35:30,996 INFO L231 Difference]: Finished difference. Result has 38 places, 42 transitions, 176 flow [2023-08-26 07:35:30,996 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=38, PETRI_TRANSITIONS=42} [2023-08-26 07:35:30,997 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 3 predicate places. [2023-08-26 07:35:30,997 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 42 transitions, 176 flow [2023-08-26 07:35:30,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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) [2023-08-26 07:35:30,998 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:35:30,998 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:35:30,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 07:35:30,999 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-26 07:35:30,999 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:35:30,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1643883172, now seen corresponding path program 1 times [2023-08-26 07:35:30,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:35:31,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591029972] [2023-08-26 07:35:31,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:35:31,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:35:31,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:35:31,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:35:31,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:35:31,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591029972] [2023-08-26 07:35:31,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591029972] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:35:31,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:35:31,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 07:35:31,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080495741] [2023-08-26 07:35:31,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:35:31,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:35:31,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:35:31,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:35:31,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:35:31,111 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 205 [2023-08-26 07:35:31,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 42 transitions, 176 flow. Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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) [2023-08-26 07:35:31,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:35:31,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 205 [2023-08-26 07:35:31,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:35:31,142 INFO L124 PetriNetUnfolderBase]: 29/124 cut-off events. [2023-08-26 07:35:31,143 INFO L125 PetriNetUnfolderBase]: For 69/69 co-relation queries the response was YES. [2023-08-26 07:35:31,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 124 events. 29/124 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 460 event pairs, 4 based on Foata normal form. 10/122 useless extension candidates. Maximal degree in co-relation 302. Up to 74 conditions per place. [2023-08-26 07:35:31,143 INFO L140 encePairwiseOnDemand]: 200/205 looper letters, 21 selfloop transitions, 5 changer transitions 0/39 dead transitions. [2023-08-26 07:35:31,143 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 39 transitions, 204 flow [2023-08-26 07:35:31,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:35:31,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:35:31,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 312 transitions. [2023-08-26 07:35:31,145 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5073170731707317 [2023-08-26 07:35:31,145 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 312 transitions. [2023-08-26 07:35:31,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 312 transitions. [2023-08-26 07:35:31,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:35:31,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 312 transitions. [2023-08-26 07:35:31,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2023-08-26 07:35:31,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 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) [2023-08-26 07:35:31,148 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 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) [2023-08-26 07:35:31,148 INFO L175 Difference]: Start difference. First operand has 38 places, 42 transitions, 176 flow. Second operand 3 states and 312 transitions. [2023-08-26 07:35:31,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 39 transitions, 204 flow [2023-08-26 07:35:31,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 39 transitions, 184 flow, removed 5 selfloop flow, removed 2 redundant places. [2023-08-26 07:35:31,150 INFO L231 Difference]: Finished difference. Result has 37 places, 36 transitions, 130 flow [2023-08-26 07:35:31,150 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=37, PETRI_TRANSITIONS=36} [2023-08-26 07:35:31,151 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 2 predicate places. [2023-08-26 07:35:31,151 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 36 transitions, 130 flow [2023-08-26 07:35:31,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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) [2023-08-26 07:35:31,152 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:35:31,152 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:35:31,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 07:35:31,152 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-26 07:35:31,152 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:35:31,153 INFO L85 PathProgramCache]: Analyzing trace with hash -431609275, now seen corresponding path program 1 times [2023-08-26 07:35:31,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:35:31,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269687557] [2023-08-26 07:35:31,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:35:31,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:35:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:35:31,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:35:31,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:35:31,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269687557] [2023-08-26 07:35:31,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269687557] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:35:31,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:35:31,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 07:35:31,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768280053] [2023-08-26 07:35:31,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:35:31,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:35:31,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:35:31,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:35:31,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:35:31,206 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 205 [2023-08-26 07:35:31,206 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 36 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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) [2023-08-26 07:35:31,206 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:35:31,206 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 205 [2023-08-26 07:35:31,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:35:31,253 INFO L124 PetriNetUnfolderBase]: 55/196 cut-off events. [2023-08-26 07:35:31,253 INFO L125 PetriNetUnfolderBase]: For 52/53 co-relation queries the response was YES. [2023-08-26 07:35:31,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 473 conditions, 196 events. 55/196 cut-off events. For 52/53 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 899 event pairs, 14 based on Foata normal form. 0/178 useless extension candidates. Maximal degree in co-relation 467. Up to 103 conditions per place. [2023-08-26 07:35:31,255 INFO L140 encePairwiseOnDemand]: 200/205 looper letters, 32 selfloop transitions, 4 changer transitions 0/46 dead transitions. [2023-08-26 07:35:31,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 46 transitions, 242 flow [2023-08-26 07:35:31,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:35:31,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:35:31,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 322 transitions. [2023-08-26 07:35:31,262 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5235772357723577 [2023-08-26 07:35:31,262 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 322 transitions. [2023-08-26 07:35:31,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 322 transitions. [2023-08-26 07:35:31,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:35:31,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 322 transitions. [2023-08-26 07:35:31,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 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) [2023-08-26 07:35:31,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 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) [2023-08-26 07:35:31,265 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 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) [2023-08-26 07:35:31,266 INFO L175 Difference]: Start difference. First operand has 37 places, 36 transitions, 130 flow. Second operand 3 states and 322 transitions. [2023-08-26 07:35:31,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 46 transitions, 242 flow [2023-08-26 07:35:31,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 46 transitions, 237 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 07:35:31,271 INFO L231 Difference]: Finished difference. Result has 40 places, 39 transitions, 155 flow [2023-08-26 07:35:31,271 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=155, PETRI_PLACES=40, PETRI_TRANSITIONS=39} [2023-08-26 07:35:31,274 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 5 predicate places. [2023-08-26 07:35:31,274 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 39 transitions, 155 flow [2023-08-26 07:35:31,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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) [2023-08-26 07:35:31,274 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:35:31,274 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:35:31,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 07:35:31,275 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-26 07:35:31,275 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:35:31,276 INFO L85 PathProgramCache]: Analyzing trace with hash -396041387, now seen corresponding path program 1 times [2023-08-26 07:35:31,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:35:31,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68931725] [2023-08-26 07:35:31,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:35:31,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:35:31,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:35:31,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:35:31,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:35:31,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68931725] [2023-08-26 07:35:31,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68931725] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:35:31,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:35:31,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 07:35:31,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664268541] [2023-08-26 07:35:31,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:35:31,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:35:31,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:35:31,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:35:31,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:35:31,325 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 205 [2023-08-26 07:35:31,325 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 39 transitions, 155 flow. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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) [2023-08-26 07:35:31,325 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:35:31,326 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 205 [2023-08-26 07:35:31,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:35:31,351 INFO L124 PetriNetUnfolderBase]: 0/36 cut-off events. [2023-08-26 07:35:31,351 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-26 07:35:31,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 36 events. 0/36 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 0. Up to 20 conditions per place. [2023-08-26 07:35:31,351 INFO L140 encePairwiseOnDemand]: 201/205 looper letters, 10 selfloop transitions, 3 changer transitions 3/20 dead transitions. [2023-08-26 07:35:31,352 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 20 transitions, 108 flow [2023-08-26 07:35:31,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:35:31,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:35:31,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 310 transitions. [2023-08-26 07:35:31,353 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5040650406504065 [2023-08-26 07:35:31,353 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 310 transitions. [2023-08-26 07:35:31,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 310 transitions. [2023-08-26 07:35:31,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:35:31,354 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 310 transitions. [2023-08-26 07:35:31,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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) [2023-08-26 07:35:31,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 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) [2023-08-26 07:35:31,357 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 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) [2023-08-26 07:35:31,357 INFO L175 Difference]: Start difference. First operand has 40 places, 39 transitions, 155 flow. Second operand 3 states and 310 transitions. [2023-08-26 07:35:31,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 20 transitions, 108 flow [2023-08-26 07:35:31,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 20 transitions, 90 flow, removed 3 selfloop flow, removed 6 redundant places. [2023-08-26 07:35:31,358 INFO L231 Difference]: Finished difference. Result has 28 places, 17 transitions, 55 flow [2023-08-26 07:35:31,359 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=55, PETRI_PLACES=28, PETRI_TRANSITIONS=17} [2023-08-26 07:35:31,359 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -7 predicate places. [2023-08-26 07:35:31,359 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 17 transitions, 55 flow [2023-08-26 07:35:31,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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) [2023-08-26 07:35:31,360 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:35:31,360 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:35:31,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 07:35:31,360 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-26 07:35:31,361 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:35:31,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1061676138, now seen corresponding path program 1 times [2023-08-26 07:35:31,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:35:31,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44933531] [2023-08-26 07:35:31,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:35:31,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:35:31,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:35:31,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:35:31,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:35:31,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44933531] [2023-08-26 07:35:31,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44933531] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:35:31,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:35:31,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 07:35:31,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466822204] [2023-08-26 07:35:31,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:35:31,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:35:31,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:35:31,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:35:31,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:35:31,394 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 205 [2023-08-26 07:35:31,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 17 transitions, 55 flow. Second operand has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 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) [2023-08-26 07:35:31,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:35:31,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 205 [2023-08-26 07:35:31,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:35:31,412 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2023-08-26 07:35:31,413 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 07:35:31,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 25 events. 0/25 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 18 event pairs, 0 based on Foata normal form. 2/27 useless extension candidates. Maximal degree in co-relation 0. Up to 21 conditions per place. [2023-08-26 07:35:31,413 INFO L140 encePairwiseOnDemand]: 203/205 looper letters, 0 selfloop transitions, 0 changer transitions 16/16 dead transitions. [2023-08-26 07:35:31,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 16 transitions, 81 flow [2023-08-26 07:35:31,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:35:31,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:35:31,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 276 transitions. [2023-08-26 07:35:31,414 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44878048780487806 [2023-08-26 07:35:31,414 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 276 transitions. [2023-08-26 07:35:31,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 276 transitions. [2023-08-26 07:35:31,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:35:31,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 276 transitions. [2023-08-26 07:35:31,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 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) [2023-08-26 07:35:31,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 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) [2023-08-26 07:35:31,417 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 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) [2023-08-26 07:35:31,417 INFO L175 Difference]: Start difference. First operand has 28 places, 17 transitions, 55 flow. Second operand 3 states and 276 transitions. [2023-08-26 07:35:31,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 16 transitions, 81 flow [2023-08-26 07:35:31,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 16 transitions, 65 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-08-26 07:35:31,418 INFO L231 Difference]: Finished difference. Result has 23 places, 0 transitions, 0 flow [2023-08-26 07:35:31,418 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=23, PETRI_TRANSITIONS=0} [2023-08-26 07:35:31,419 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -12 predicate places. [2023-08-26 07:35:31,419 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 0 transitions, 0 flow [2023-08-26 07:35:31,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 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) [2023-08-26 07:35:31,421 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2023-08-26 07:35:31,421 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (10 of 12 remaining) [2023-08-26 07:35:31,422 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2023-08-26 07:35:31,422 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2023-08-26 07:35:31,422 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONASSERT (7 of 12 remaining) [2023-08-26 07:35:31,422 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2023-08-26 07:35:31,422 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2023-08-26 07:35:31,422 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2023-08-26 07:35:31,423 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2023-08-26 07:35:31,423 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2023-08-26 07:35:31,423 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2023-08-26 07:35:31,423 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2023-08-26 07:35:31,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 07:35:31,423 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:35:31,427 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 07:35:31,427 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 07:35:31,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 07:35:31 BasicIcfg [2023-08-26 07:35:31,430 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 07:35:31,431 INFO L158 Benchmark]: Toolchain (without parser) took 5845.74ms. Allocated memory was 383.8MB in the beginning and 507.5MB in the end (delta: 123.7MB). Free memory was 358.7MB in the beginning and 350.3MB in the end (delta: 8.5MB). Peak memory consumption was 132.6MB. Max. memory is 16.0GB. [2023-08-26 07:35:31,431 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 383.8MB. Free memory is still 359.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 07:35:31,431 INFO L158 Benchmark]: CACSL2BoogieTranslator took 472.42ms. Allocated memory is still 383.8MB. Free memory was 358.7MB in the beginning and 339.0MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-26 07:35:31,432 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.69ms. Allocated memory is still 383.8MB. Free memory was 339.0MB in the beginning and 336.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 07:35:31,432 INFO L158 Benchmark]: Boogie Preprocessor took 33.89ms. Allocated memory is still 383.8MB. Free memory was 336.9MB in the beginning and 335.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 07:35:31,432 INFO L158 Benchmark]: RCFGBuilder took 373.89ms. Allocated memory is still 383.8MB. Free memory was 335.2MB in the beginning and 320.5MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-26 07:35:31,432 INFO L158 Benchmark]: TraceAbstraction took 4899.90ms. Allocated memory was 383.8MB in the beginning and 507.5MB in the end (delta: 123.7MB). Free memory was 319.6MB in the beginning and 350.3MB in the end (delta: -30.7MB). Peak memory consumption was 94.9MB. Max. memory is 16.0GB. [2023-08-26 07:35:31,434 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 383.8MB. Free memory is still 359.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 472.42ms. Allocated memory is still 383.8MB. Free memory was 358.7MB in the beginning and 339.0MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 60.69ms. Allocated memory is still 383.8MB. Free memory was 339.0MB in the beginning and 336.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 33.89ms. Allocated memory is still 383.8MB. Free memory was 336.9MB in the beginning and 335.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 373.89ms. Allocated memory is still 383.8MB. Free memory was 335.2MB in the beginning and 320.5MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 4899.90ms. Allocated memory was 383.8MB in the beginning and 507.5MB in the end (delta: 123.7MB). Free memory was 319.6MB in the beginning and 350.3MB in the end (delta: -30.7MB). Peak memory consumption was 94.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.6s, 105 PlacesBefore, 35 PlacesAfterwards, 104 TransitionsBefore, 32 TransitionsAfterwards, 1216 CoEnabledTransitionPairs, 8 FixpointIterations, 63 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 2 ConcurrentYvCompositions, 2 ChoiceCompositions, 93 TotalNumberOfCompositions, 7062 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2260, independent: 1827, independent conditional: 0, independent unconditional: 1827, dependent: 433, dependent conditional: 0, dependent unconditional: 433, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 657, independent: 610, independent conditional: 0, independent unconditional: 610, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2260, independent: 1217, independent conditional: 0, independent unconditional: 1217, dependent: 386, dependent conditional: 0, dependent unconditional: 386, unknown: 657, unknown conditional: 0, unknown unconditional: 657] , Statistics on independence cache: Total cache size (in pairs): 124, Positive cache size: 100, Positive conditional cache size: 0, Positive unconditional cache size: 100, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 704]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 704]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races 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: 708]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 709]: there are no data races For all program executions holds that there are no data races 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: 694]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 699]: 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, 130 locations, 12 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: 4.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 214 IncrementalHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 21 mSDtfsCounter, 214 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=176occurred in iteration=3, InterpolantAutomatonStates: 20, 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, 0.3s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 76 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-26 07:35:31,454 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...