/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 INSUFFICIENT_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/pthread-atomic/time_var_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 07:55:42,616 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 07:55:42,676 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 07:55:42,681 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 07:55:42,681 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 07:55:42,716 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 07:55:42,717 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 07:55:42,717 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 07:55:42,718 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 07:55:42,721 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 07:55:42,722 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 07:55:42,722 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 07:55:42,722 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 07:55:42,723 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 07:55:42,723 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 07:55:42,724 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 07:55:42,724 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 07:55:42,724 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 07:55:42,724 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 07:55:42,724 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 07:55:42,725 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 07:55:42,725 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 07:55:42,725 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 07:55:42,726 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 07:55:42,726 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 07:55:42,726 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 07:55:42,727 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 07:55:42,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 07:55:42,727 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 07:55:42,727 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 07:55:42,728 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 07:55:42,728 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 07:55:42,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 07:55:42,729 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 07:55:42,729 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 07:55:42,729 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 07:55:43,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 07:55:43,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 07:55:43,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 07:55:43,063 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 07:55:43,065 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 07:55:43,066 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2023-08-25 07:55:44,305 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 07:55:44,591 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 07:55:44,591 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2023-08-25 07:55:44,609 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbafeddff/4b463ee0b9504cff937d7111deacc2b4/FLAGebd35b755 [2023-08-25 07:55:44,623 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbafeddff/4b463ee0b9504cff937d7111deacc2b4 [2023-08-25 07:55:44,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 07:55:44,626 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 07:55:44,627 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 07:55:44,627 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 07:55:44,629 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 07:55:44,633 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:55:44" (1/1) ... [2023-08-25 07:55:44,634 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4407bfc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:44, skipping insertion in model container [2023-08-25 07:55:44,634 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:55:44" (1/1) ... [2023-08-25 07:55:44,680 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 07:55:45,005 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 07:55:45,022 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 07:55:45,049 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [253] [2023-08-25 07:55:45,051 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [253] [2023-08-25 07:55:45,078 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 07:55:45,118 INFO L206 MainTranslator]: Completed translation [2023-08-25 07:55:45,118 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:45 WrapperNode [2023-08-25 07:55:45,118 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 07:55:45,119 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 07:55:45,120 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 07:55:45,120 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 07:55:45,125 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:45" (1/1) ... [2023-08-25 07:55:45,153 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:45" (1/1) ... [2023-08-25 07:55:45,184 INFO L138 Inliner]: procedures = 169, calls = 36, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 135 [2023-08-25 07:55:45,185 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 07:55:45,186 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 07:55:45,186 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 07:55:45,186 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 07:55:45,194 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:45" (1/1) ... [2023-08-25 07:55:45,194 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:45" (1/1) ... [2023-08-25 07:55:45,207 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:45" (1/1) ... [2023-08-25 07:55:45,208 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:45" (1/1) ... [2023-08-25 07:55:45,213 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:45" (1/1) ... [2023-08-25 07:55:45,215 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:45" (1/1) ... [2023-08-25 07:55:45,216 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:45" (1/1) ... [2023-08-25 07:55:45,217 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:45" (1/1) ... [2023-08-25 07:55:45,219 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 07:55:45,220 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 07:55:45,220 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 07:55:45,220 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 07:55:45,221 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:45" (1/1) ... [2023-08-25 07:55:45,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 07:55:45,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 07:55:45,255 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 07:55:45,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 07:55:45,292 INFO L130 BoogieDeclarations]: Found specification of procedure allocator [2023-08-25 07:55:45,292 INFO L138 BoogieDeclarations]: Found implementation of procedure allocator [2023-08-25 07:55:45,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 07:55:45,293 INFO L130 BoogieDeclarations]: Found specification of procedure de_allocator [2023-08-25 07:55:45,293 INFO L138 BoogieDeclarations]: Found implementation of procedure de_allocator [2023-08-25 07:55:45,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 07:55:45,293 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 07:55:45,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 07:55:45,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 07:55:45,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 07:55:45,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 07:55:45,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 07:55:45,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 07:55:45,295 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 07:55:45,444 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 07:55:45,446 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 07:55:45,720 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 07:55:45,727 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 07:55:45,727 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 07:55:45,729 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:55:45 BoogieIcfgContainer [2023-08-25 07:55:45,729 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 07:55:45,731 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 07:55:45,731 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 07:55:45,733 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 07:55:45,734 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 07:55:44" (1/3) ... [2023-08-25 07:55:45,734 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0c2be2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:55:45, skipping insertion in model container [2023-08-25 07:55:45,734 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:45" (2/3) ... [2023-08-25 07:55:45,735 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0c2be2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:55:45, skipping insertion in model container [2023-08-25 07:55:45,735 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:55:45" (3/3) ... [2023-08-25 07:55:45,736 INFO L112 eAbstractionObserver]: Analyzing ICFG time_var_mutex.i [2023-08-25 07:55:45,748 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 07:55:45,748 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-08-25 07:55:45,748 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 07:55:45,810 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 07:55:45,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 154 places, 154 transitions, 324 flow [2023-08-25 07:55:45,901 INFO L124 PetriNetUnfolderBase]: 7/152 cut-off events. [2023-08-25 07:55:45,902 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 07:55:45,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 152 events. 7/152 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 266 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 97. Up to 3 conditions per place. [2023-08-25 07:55:45,909 INFO L82 GeneralOperation]: Start removeDead. Operand has 154 places, 154 transitions, 324 flow [2023-08-25 07:55:45,913 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 143 places, 143 transitions, 295 flow [2023-08-25 07:55:45,916 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 07:55:45,923 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 143 places, 143 transitions, 295 flow [2023-08-25 07:55:45,926 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 143 places, 143 transitions, 295 flow [2023-08-25 07:55:45,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 143 transitions, 295 flow [2023-08-25 07:55:45,952 INFO L124 PetriNetUnfolderBase]: 7/143 cut-off events. [2023-08-25 07:55:45,952 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 07:55:45,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 143 events. 7/143 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 265 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 97. Up to 3 conditions per place. [2023-08-25 07:55:45,956 INFO L119 LiptonReduction]: Number of co-enabled transitions 4916 [2023-08-25 07:55:49,453 INFO L134 LiptonReduction]: Checked pairs total: 19954 [2023-08-25 07:55:49,453 INFO L136 LiptonReduction]: Total number of compositions: 130 [2023-08-25 07:55:49,464 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 07:55:49,469 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;@331b1a29, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 07:55:49,470 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-08-25 07:55:49,471 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 07:55:49,471 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 07:55:49,471 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 07:55:49,471 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:55:49,472 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 07:55:49,472 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [allocatorErr0ASSERT_VIOLATIONDATA_RACE, allocatorErr3ASSERT_VIOLATIONDATA_RACE, allocatorErr1ASSERT_VIOLATIONDATA_RACE, allocatorErr4ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 07:55:49,476 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:55:49,476 INFO L85 PathProgramCache]: Analyzing trace with hash 575, now seen corresponding path program 1 times [2023-08-25 07:55:49,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:55:49,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926046874] [2023-08-25 07:55:49,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:55:49,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:55:49,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:55:49,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:55:49,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:55:49,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926046874] [2023-08-25 07:55:49,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926046874] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:55:49,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:55:49,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 07:55:49,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661880564] [2023-08-25 07:55:49,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:55:49,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 07:55:49,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:55:49,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 07:55:49,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 07:55:49,597 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 284 [2023-08-25 07:55:49,599 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 53 transitions, 115 flow. Second operand has 2 states, 2 states have (on average 143.5) internal successors, (287), 2 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:49,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:55:49,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 284 [2023-08-25 07:55:49,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:55:49,753 INFO L124 PetriNetUnfolderBase]: 283/701 cut-off events. [2023-08-25 07:55:49,754 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2023-08-25 07:55:49,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1210 conditions, 701 events. 283/701 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 4114 event pairs, 249 based on Foata normal form. 26/580 useless extension candidates. Maximal degree in co-relation 1141. Up to 473 conditions per place. [2023-08-25 07:55:49,762 INFO L140 encePairwiseOnDemand]: 275/284 looper letters, 25 selfloop transitions, 0 changer transitions 0/42 dead transitions. [2023-08-25 07:55:49,762 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 42 transitions, 143 flow [2023-08-25 07:55:49,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 07:55:49,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 07:55:49,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 320 transitions. [2023-08-25 07:55:49,779 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5633802816901409 [2023-08-25 07:55:49,780 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 320 transitions. [2023-08-25 07:55:49,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 320 transitions. [2023-08-25 07:55:49,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:55:49,784 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 320 transitions. [2023-08-25 07:55:49,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 160.0) internal successors, (320), 2 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:49,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 284.0) internal successors, (852), 3 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:49,794 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 284.0) internal successors, (852), 3 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:49,795 INFO L175 Difference]: Start difference. First operand has 55 places, 53 transitions, 115 flow. Second operand 2 states and 320 transitions. [2023-08-25 07:55:49,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 42 transitions, 143 flow [2023-08-25 07:55:49,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 42 transitions, 138 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 07:55:49,801 INFO L231 Difference]: Finished difference. Result has 45 places, 42 transitions, 88 flow [2023-08-25 07:55:49,802 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=88, PETRI_PLACES=45, PETRI_TRANSITIONS=42} [2023-08-25 07:55:49,806 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, -10 predicate places. [2023-08-25 07:55:49,806 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 42 transitions, 88 flow [2023-08-25 07:55:49,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 143.5) internal successors, (287), 2 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:49,806 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:55:49,807 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 07:55:49,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 07:55:49,807 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting allocatorErr3ASSERT_VIOLATIONDATA_RACE === [allocatorErr0ASSERT_VIOLATIONDATA_RACE, allocatorErr3ASSERT_VIOLATIONDATA_RACE, allocatorErr1ASSERT_VIOLATIONDATA_RACE, allocatorErr4ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 07:55:49,808 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:55:49,808 INFO L85 PathProgramCache]: Analyzing trace with hash -352624386, now seen corresponding path program 1 times [2023-08-25 07:55:49,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:55:49,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237897708] [2023-08-25 07:55:49,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:55:49,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:55:49,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:55:49,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:55:49,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:55:49,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237897708] [2023-08-25 07:55:49,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237897708] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:55:49,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:55:49,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 07:55:49,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076213710] [2023-08-25 07:55:49,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:55:49,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:55:49,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:55:49,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:55:49,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:55:49,930 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 284 [2023-08-25 07:55:49,930 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 42 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:49,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:55:49,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 284 [2023-08-25 07:55:49,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:55:50,017 INFO L124 PetriNetUnfolderBase]: 257/640 cut-off events. [2023-08-25 07:55:50,018 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 07:55:50,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1124 conditions, 640 events. 257/640 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3606 event pairs, 111 based on Foata normal form. 0/536 useless extension candidates. Maximal degree in co-relation 1121. Up to 249 conditions per place. [2023-08-25 07:55:50,021 INFO L140 encePairwiseOnDemand]: 281/284 looper letters, 31 selfloop transitions, 2 changer transitions 0/50 dead transitions. [2023-08-25 07:55:50,021 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 50 transitions, 172 flow [2023-08-25 07:55:50,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:55:50,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:55:50,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 448 transitions. [2023-08-25 07:55:50,024 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5258215962441315 [2023-08-25 07:55:50,024 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 448 transitions. [2023-08-25 07:55:50,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 448 transitions. [2023-08-25 07:55:50,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:55:50,024 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 448 transitions. [2023-08-25 07:55:50,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 149.33333333333334) internal successors, (448), 3 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:50,028 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:50,028 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:50,029 INFO L175 Difference]: Start difference. First operand has 45 places, 42 transitions, 88 flow. Second operand 3 states and 448 transitions. [2023-08-25 07:55:50,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 50 transitions, 172 flow [2023-08-25 07:55:50,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 50 transitions, 172 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 07:55:50,030 INFO L231 Difference]: Finished difference. Result has 47 places, 41 transitions, 90 flow [2023-08-25 07:55:50,030 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=47, PETRI_TRANSITIONS=41} [2023-08-25 07:55:50,031 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, -8 predicate places. [2023-08-25 07:55:50,031 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 41 transitions, 90 flow [2023-08-25 07:55:50,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:50,032 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:55:50,032 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:55:50,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 07:55:50,032 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting allocatorErr1ASSERT_VIOLATIONDATA_RACE === [allocatorErr0ASSERT_VIOLATIONDATA_RACE, allocatorErr3ASSERT_VIOLATIONDATA_RACE, allocatorErr1ASSERT_VIOLATIONDATA_RACE, allocatorErr4ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 07:55:50,033 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:55:50,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1953746258, now seen corresponding path program 1 times [2023-08-25 07:55:50,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:55:50,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891870547] [2023-08-25 07:55:50,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:55:50,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:55:50,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:55:50,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:55:50,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:55:50,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891870547] [2023-08-25 07:55:50,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891870547] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:55:50,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:55:50,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 07:55:50,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629277214] [2023-08-25 07:55:50,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:55:50,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:55:50,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:55:50,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:55:50,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:55:50,095 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 284 [2023-08-25 07:55:50,096 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 41 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:50,096 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:55:50,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 284 [2023-08-25 07:55:50,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:55:50,222 INFO L124 PetriNetUnfolderBase]: 413/924 cut-off events. [2023-08-25 07:55:50,222 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-25 07:55:50,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1694 conditions, 924 events. 413/924 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 5121 event pairs, 357 based on Foata normal form. 0/752 useless extension candidates. Maximal degree in co-relation 1690. Up to 669 conditions per place. [2023-08-25 07:55:50,227 INFO L140 encePairwiseOnDemand]: 280/284 looper letters, 38 selfloop transitions, 3 changer transitions 0/54 dead transitions. [2023-08-25 07:55:50,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 54 transitions, 200 flow [2023-08-25 07:55:50,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:55:50,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:55:50,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 438 transitions. [2023-08-25 07:55:50,229 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5140845070422535 [2023-08-25 07:55:50,229 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 438 transitions. [2023-08-25 07:55:50,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 438 transitions. [2023-08-25 07:55:50,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:55:50,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 438 transitions. [2023-08-25 07:55:50,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:50,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:50,233 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:50,234 INFO L175 Difference]: Start difference. First operand has 47 places, 41 transitions, 90 flow. Second operand 3 states and 438 transitions. [2023-08-25 07:55:50,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 54 transitions, 200 flow [2023-08-25 07:55:50,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 54 transitions, 196 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 07:55:50,236 INFO L231 Difference]: Finished difference. Result has 48 places, 43 transitions, 105 flow [2023-08-25 07:55:50,236 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=105, PETRI_PLACES=48, PETRI_TRANSITIONS=43} [2023-08-25 07:55:50,237 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, -7 predicate places. [2023-08-25 07:55:50,237 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 43 transitions, 105 flow [2023-08-25 07:55:50,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:50,238 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:55:50,238 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:55:50,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 07:55:50,238 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting de_allocatorErr0ASSERT_VIOLATIONDATA_RACE === [allocatorErr0ASSERT_VIOLATIONDATA_RACE, allocatorErr3ASSERT_VIOLATIONDATA_RACE, allocatorErr1ASSERT_VIOLATIONDATA_RACE, allocatorErr4ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 07:55:50,239 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:55:50,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1950369271, now seen corresponding path program 1 times [2023-08-25 07:55:50,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:55:50,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427551593] [2023-08-25 07:55:50,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:55:50,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:55:50,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:55:50,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:55:50,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:55:50,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427551593] [2023-08-25 07:55:50,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427551593] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:55:50,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:55:50,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 07:55:50,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417399195] [2023-08-25 07:55:50,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:55:50,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:55:50,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:55:50,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:55:50,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:55:50,287 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 284 [2023-08-25 07:55:50,288 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 43 transitions, 105 flow. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:50,288 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:55:50,288 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 284 [2023-08-25 07:55:50,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:55:50,440 INFO L124 PetriNetUnfolderBase]: 558/1283 cut-off events. [2023-08-25 07:55:50,441 INFO L125 PetriNetUnfolderBase]: For 98/98 co-relation queries the response was YES. [2023-08-25 07:55:50,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2416 conditions, 1283 events. 558/1283 cut-off events. For 98/98 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 8079 event pairs, 186 based on Foata normal form. 0/1065 useless extension candidates. Maximal degree in co-relation 2411. Up to 543 conditions per place. [2023-08-25 07:55:50,447 INFO L140 encePairwiseOnDemand]: 279/284 looper letters, 45 selfloop transitions, 5 changer transitions 0/63 dead transitions. [2023-08-25 07:55:50,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 63 transitions, 253 flow [2023-08-25 07:55:50,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:55:50,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:55:50,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 451 transitions. [2023-08-25 07:55:50,449 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5293427230046949 [2023-08-25 07:55:50,449 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 451 transitions. [2023-08-25 07:55:50,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 451 transitions. [2023-08-25 07:55:50,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:55:50,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 451 transitions. [2023-08-25 07:55:50,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.33333333333334) internal successors, (451), 3 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:50,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:50,452 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:50,452 INFO L175 Difference]: Start difference. First operand has 48 places, 43 transitions, 105 flow. Second operand 3 states and 451 transitions. [2023-08-25 07:55:50,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 63 transitions, 253 flow [2023-08-25 07:55:50,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 63 transitions, 249 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 07:55:50,455 INFO L231 Difference]: Finished difference. Result has 51 places, 45 transitions, 134 flow [2023-08-25 07:55:50,455 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=51, PETRI_TRANSITIONS=45} [2023-08-25 07:55:50,456 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, -4 predicate places. [2023-08-25 07:55:50,456 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 45 transitions, 134 flow [2023-08-25 07:55:50,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:50,456 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:55:50,456 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:55:50,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 07:55:50,457 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting de_allocatorErr0ASSERT_VIOLATIONDATA_RACE === [allocatorErr0ASSERT_VIOLATIONDATA_RACE, allocatorErr3ASSERT_VIOLATIONDATA_RACE, allocatorErr1ASSERT_VIOLATIONDATA_RACE, allocatorErr4ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 07:55:50,457 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:55:50,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1645629178, now seen corresponding path program 1 times [2023-08-25 07:55:50,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:55:50,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960513528] [2023-08-25 07:55:50,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:55:50,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:55:50,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:55:50,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:55:50,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:55:50,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960513528] [2023-08-25 07:55:50,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960513528] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:55:50,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:55:50,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 07:55:50,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069667855] [2023-08-25 07:55:50,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:55:50,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:55:50,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:55:50,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:55:50,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:55:50,613 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 284 [2023-08-25 07:55:50,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 45 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:50,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:55:50,613 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 284 [2023-08-25 07:55:50,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:55:50,703 INFO L124 PetriNetUnfolderBase]: 208/611 cut-off events. [2023-08-25 07:55:50,703 INFO L125 PetriNetUnfolderBase]: For 69/69 co-relation queries the response was YES. [2023-08-25 07:55:50,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1127 conditions, 611 events. 208/611 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3427 event pairs, 54 based on Foata normal form. 18/537 useless extension candidates. Maximal degree in co-relation 1121. Up to 230 conditions per place. [2023-08-25 07:55:50,706 INFO L140 encePairwiseOnDemand]: 279/284 looper letters, 33 selfloop transitions, 5 changer transitions 2/56 dead transitions. [2023-08-25 07:55:50,706 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 56 transitions, 223 flow [2023-08-25 07:55:50,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:55:50,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:55:50,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 429 transitions. [2023-08-25 07:55:50,708 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5035211267605634 [2023-08-25 07:55:50,708 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 429 transitions. [2023-08-25 07:55:50,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 429 transitions. [2023-08-25 07:55:50,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:55:50,709 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 429 transitions. [2023-08-25 07:55:50,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:50,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:50,712 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:50,712 INFO L175 Difference]: Start difference. First operand has 51 places, 45 transitions, 134 flow. Second operand 3 states and 429 transitions. [2023-08-25 07:55:50,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 56 transitions, 223 flow [2023-08-25 07:55:50,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 56 transitions, 207 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-08-25 07:55:50,715 INFO L231 Difference]: Finished difference. Result has 48 places, 41 transitions, 111 flow [2023-08-25 07:55:50,715 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=111, PETRI_PLACES=48, PETRI_TRANSITIONS=41} [2023-08-25 07:55:50,715 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, -7 predicate places. [2023-08-25 07:55:50,716 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 41 transitions, 111 flow [2023-08-25 07:55:50,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:50,716 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:55:50,716 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:55:50,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 07:55:50,716 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting allocatorErr3ASSERT_VIOLATIONDATA_RACE === [allocatorErr0ASSERT_VIOLATIONDATA_RACE, allocatorErr3ASSERT_VIOLATIONDATA_RACE, allocatorErr1ASSERT_VIOLATIONDATA_RACE, allocatorErr4ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 07:55:50,717 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:55:50,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1464270325, now seen corresponding path program 1 times [2023-08-25 07:55:50,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:55:50,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287095713] [2023-08-25 07:55:50,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:55:50,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:55:50,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:55:50,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:55:50,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:55:50,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287095713] [2023-08-25 07:55:50,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287095713] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:55:50,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:55:50,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 07:55:50,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277969592] [2023-08-25 07:55:50,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:55:50,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:55:50,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:55:50,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:55:50,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:55:50,764 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 284 [2023-08-25 07:55:50,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 41 transitions, 111 flow. Second operand has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:50,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:55:50,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 284 [2023-08-25 07:55:50,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:55:50,883 INFO L124 PetriNetUnfolderBase]: 485/978 cut-off events. [2023-08-25 07:55:50,883 INFO L125 PetriNetUnfolderBase]: For 152/152 co-relation queries the response was YES. [2023-08-25 07:55:50,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2102 conditions, 978 events. 485/978 cut-off events. For 152/152 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 4883 event pairs, 361 based on Foata normal form. 0/808 useless extension candidates. Maximal degree in co-relation 2096. Up to 765 conditions per place. [2023-08-25 07:55:50,888 INFO L140 encePairwiseOnDemand]: 278/284 looper letters, 43 selfloop transitions, 5 changer transitions 0/56 dead transitions. [2023-08-25 07:55:50,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 56 transitions, 245 flow [2023-08-25 07:55:50,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:55:50,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:55:50,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 435 transitions. [2023-08-25 07:55:50,890 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5105633802816901 [2023-08-25 07:55:50,890 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 435 transitions. [2023-08-25 07:55:50,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 435 transitions. [2023-08-25 07:55:50,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:55:50,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 435 transitions. [2023-08-25 07:55:50,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:50,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:50,895 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:50,895 INFO L175 Difference]: Start difference. First operand has 48 places, 41 transitions, 111 flow. Second operand 3 states and 435 transitions. [2023-08-25 07:55:50,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 56 transitions, 245 flow [2023-08-25 07:55:50,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 56 transitions, 238 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 07:55:50,898 INFO L231 Difference]: Finished difference. Result has 51 places, 45 transitions, 144 flow [2023-08-25 07:55:50,899 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=144, PETRI_PLACES=51, PETRI_TRANSITIONS=45} [2023-08-25 07:55:50,899 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, -4 predicate places. [2023-08-25 07:55:50,899 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 45 transitions, 144 flow [2023-08-25 07:55:50,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:50,900 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:55:50,900 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:55:50,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 07:55:50,900 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting de_allocatorErr1ASSERT_VIOLATIONDATA_RACE === [allocatorErr0ASSERT_VIOLATIONDATA_RACE, allocatorErr3ASSERT_VIOLATIONDATA_RACE, allocatorErr1ASSERT_VIOLATIONDATA_RACE, allocatorErr4ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 07:55:50,900 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:55:50,901 INFO L85 PathProgramCache]: Analyzing trace with hash 787605303, now seen corresponding path program 1 times [2023-08-25 07:55:50,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:55:50,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127516373] [2023-08-25 07:55:50,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:55:50,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:55:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:55:50,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:55:50,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:55:50,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127516373] [2023-08-25 07:55:50,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127516373] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:55:50,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:55:50,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 07:55:50,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036434956] [2023-08-25 07:55:50,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:55:50,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:55:50,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:55:50,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:55:50,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:55:50,928 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 284 [2023-08-25 07:55:50,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 45 transitions, 144 flow. Second operand has 3 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:50,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:55:50,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 284 [2023-08-25 07:55:50,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:55:51,053 INFO L124 PetriNetUnfolderBase]: 502/1011 cut-off events. [2023-08-25 07:55:51,053 INFO L125 PetriNetUnfolderBase]: For 307/323 co-relation queries the response was YES. [2023-08-25 07:55:51,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2391 conditions, 1011 events. 502/1011 cut-off events. For 307/323 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 5107 event pairs, 337 based on Foata normal form. 0/871 useless extension candidates. Maximal degree in co-relation 2384. Up to 781 conditions per place. [2023-08-25 07:55:51,058 INFO L140 encePairwiseOnDemand]: 278/284 looper letters, 47 selfloop transitions, 8 changer transitions 0/63 dead transitions. [2023-08-25 07:55:51,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 63 transitions, 317 flow [2023-08-25 07:55:51,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:55:51,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:55:51,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 435 transitions. [2023-08-25 07:55:51,060 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5105633802816901 [2023-08-25 07:55:51,060 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 435 transitions. [2023-08-25 07:55:51,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 435 transitions. [2023-08-25 07:55:51,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:55:51,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 435 transitions. [2023-08-25 07:55:51,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:51,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:51,063 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:51,063 INFO L175 Difference]: Start difference. First operand has 51 places, 45 transitions, 144 flow. Second operand 3 states and 435 transitions. [2023-08-25 07:55:51,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 63 transitions, 317 flow [2023-08-25 07:55:51,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 63 transitions, 299 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 07:55:51,066 INFO L231 Difference]: Finished difference. Result has 53 places, 51 transitions, 202 flow [2023-08-25 07:55:51,066 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=53, PETRI_TRANSITIONS=51} [2023-08-25 07:55:51,067 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, -2 predicate places. [2023-08-25 07:55:51,067 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 51 transitions, 202 flow [2023-08-25 07:55:51,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:51,067 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:55:51,067 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:55:51,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 07:55:51,068 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting allocatorErr4ASSERT_VIOLATIONDATA_RACE === [allocatorErr0ASSERT_VIOLATIONDATA_RACE, allocatorErr3ASSERT_VIOLATIONDATA_RACE, allocatorErr1ASSERT_VIOLATIONDATA_RACE, allocatorErr4ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 07:55:51,068 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:55:51,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1585476330, now seen corresponding path program 1 times [2023-08-25 07:55:51,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:55:51,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104419535] [2023-08-25 07:55:51,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:55:51,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:55:51,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:55:51,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:55:51,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:55:51,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104419535] [2023-08-25 07:55:51,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104419535] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:55:51,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:55:51,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 07:55:51,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551066387] [2023-08-25 07:55:51,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:55:51,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:55:51,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:55:51,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:55:51,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:55:51,096 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 284 [2023-08-25 07:55:51,096 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 51 transitions, 202 flow. Second operand has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:51,096 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:55:51,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 284 [2023-08-25 07:55:51,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:55:51,221 INFO L124 PetriNetUnfolderBase]: 491/1032 cut-off events. [2023-08-25 07:55:51,221 INFO L125 PetriNetUnfolderBase]: For 584/616 co-relation queries the response was YES. [2023-08-25 07:55:51,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2710 conditions, 1032 events. 491/1032 cut-off events. For 584/616 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 5456 event pairs, 184 based on Foata normal form. 0/952 useless extension candidates. Maximal degree in co-relation 2702. Up to 603 conditions per place. [2023-08-25 07:55:51,227 INFO L140 encePairwiseOnDemand]: 276/284 looper letters, 63 selfloop transitions, 10 changer transitions 0/81 dead transitions. [2023-08-25 07:55:51,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 81 transitions, 457 flow [2023-08-25 07:55:51,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:55:51,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:55:51,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 455 transitions. [2023-08-25 07:55:51,228 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.534037558685446 [2023-08-25 07:55:51,229 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 455 transitions. [2023-08-25 07:55:51,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 455 transitions. [2023-08-25 07:55:51,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:55:51,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 455 transitions. [2023-08-25 07:55:51,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:51,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:51,231 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:51,232 INFO L175 Difference]: Start difference. First operand has 53 places, 51 transitions, 202 flow. Second operand 3 states and 455 transitions. [2023-08-25 07:55:51,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 81 transitions, 457 flow [2023-08-25 07:55:51,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 81 transitions, 435 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 07:55:51,235 INFO L231 Difference]: Finished difference. Result has 55 places, 57 transitions, 270 flow [2023-08-25 07:55:51,235 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=270, PETRI_PLACES=55, PETRI_TRANSITIONS=57} [2023-08-25 07:55:51,235 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 0 predicate places. [2023-08-25 07:55:51,235 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 57 transitions, 270 flow [2023-08-25 07:55:51,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:51,236 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:55:51,236 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:55:51,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 07:55:51,236 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting allocatorErr5ASSERT_VIOLATIONASSERT === [allocatorErr0ASSERT_VIOLATIONDATA_RACE, allocatorErr3ASSERT_VIOLATIONDATA_RACE, allocatorErr1ASSERT_VIOLATIONDATA_RACE, allocatorErr4ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 07:55:51,237 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:55:51,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1905125451, now seen corresponding path program 1 times [2023-08-25 07:55:51,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:55:51,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321300477] [2023-08-25 07:55:51,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:55:51,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:55:51,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:55:51,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:55:51,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:55:51,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321300477] [2023-08-25 07:55:51,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321300477] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:55:51,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:55:51,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 07:55:51,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157099197] [2023-08-25 07:55:51,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:55:51,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:55:51,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:55:51,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:55:51,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:55:51,292 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 284 [2023-08-25 07:55:51,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 57 transitions, 270 flow. Second operand has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:51,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:55:51,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 284 [2023-08-25 07:55:51,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:55:51,438 INFO L124 PetriNetUnfolderBase]: 573/1308 cut-off events. [2023-08-25 07:55:51,438 INFO L125 PetriNetUnfolderBase]: For 2057/2157 co-relation queries the response was YES. [2023-08-25 07:55:51,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3913 conditions, 1308 events. 573/1308 cut-off events. For 2057/2157 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 8133 event pairs, 214 based on Foata normal form. 24/1168 useless extension candidates. Maximal degree in co-relation 3904. Up to 600 conditions per place. [2023-08-25 07:55:51,445 INFO L140 encePairwiseOnDemand]: 279/284 looper letters, 64 selfloop transitions, 3 changer transitions 2/86 dead transitions. [2023-08-25 07:55:51,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 86 transitions, 581 flow [2023-08-25 07:55:51,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:55:51,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:55:51,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 453 transitions. [2023-08-25 07:55:51,447 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5316901408450704 [2023-08-25 07:55:51,448 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 453 transitions. [2023-08-25 07:55:51,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 453 transitions. [2023-08-25 07:55:51,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:55:51,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 453 transitions. [2023-08-25 07:55:51,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:51,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:51,450 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:51,451 INFO L175 Difference]: Start difference. First operand has 55 places, 57 transitions, 270 flow. Second operand 3 states and 453 transitions. [2023-08-25 07:55:51,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 86 transitions, 581 flow [2023-08-25 07:55:51,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 86 transitions, 545 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 07:55:51,456 INFO L231 Difference]: Finished difference. Result has 57 places, 59 transitions, 274 flow [2023-08-25 07:55:51,456 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=57, PETRI_TRANSITIONS=59} [2023-08-25 07:55:51,457 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 2 predicate places. [2023-08-25 07:55:51,457 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 59 transitions, 274 flow [2023-08-25 07:55:51,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:51,458 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:55:51,458 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:55:51,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 07:55:51,458 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting de_allocatorErr3ASSERT_VIOLATIONASSERT === [allocatorErr0ASSERT_VIOLATIONDATA_RACE, allocatorErr3ASSERT_VIOLATIONDATA_RACE, allocatorErr1ASSERT_VIOLATIONDATA_RACE, allocatorErr4ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 07:55:51,458 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:55:51,458 INFO L85 PathProgramCache]: Analyzing trace with hash 143722574, now seen corresponding path program 1 times [2023-08-25 07:55:51,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:55:51,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057059475] [2023-08-25 07:55:51,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:55:51,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:55:51,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:55:51,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:55:51,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:55:51,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057059475] [2023-08-25 07:55:51,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057059475] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:55:51,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:55:51,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 07:55:51,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962600144] [2023-08-25 07:55:51,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:55:51,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:55:51,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:55:51,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:55:51,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:55:51,503 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 284 [2023-08-25 07:55:51,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 59 transitions, 274 flow. Second operand has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:51,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:55:51,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 284 [2023-08-25 07:55:51,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:55:51,620 INFO L124 PetriNetUnfolderBase]: 477/1136 cut-off events. [2023-08-25 07:55:51,620 INFO L125 PetriNetUnfolderBase]: For 1545/1645 co-relation queries the response was YES. [2023-08-25 07:55:51,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3470 conditions, 1136 events. 477/1136 cut-off events. For 1545/1645 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 7033 event pairs, 176 based on Foata normal form. 78/1132 useless extension candidates. Maximal degree in co-relation 3460. Up to 461 conditions per place. [2023-08-25 07:55:51,626 INFO L140 encePairwiseOnDemand]: 278/284 looper letters, 57 selfloop transitions, 3 changer transitions 7/83 dead transitions. [2023-08-25 07:55:51,626 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 83 transitions, 549 flow [2023-08-25 07:55:51,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:55:51,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:55:51,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 451 transitions. [2023-08-25 07:55:51,628 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5293427230046949 [2023-08-25 07:55:51,628 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 451 transitions. [2023-08-25 07:55:51,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 451 transitions. [2023-08-25 07:55:51,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:55:51,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 451 transitions. [2023-08-25 07:55:51,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.33333333333334) internal successors, (451), 3 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:51,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:51,631 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:51,631 INFO L175 Difference]: Start difference. First operand has 57 places, 59 transitions, 274 flow. Second operand 3 states and 451 transitions. [2023-08-25 07:55:51,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 83 transitions, 549 flow [2023-08-25 07:55:51,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 83 transitions, 545 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 07:55:51,634 INFO L231 Difference]: Finished difference. Result has 58 places, 56 transitions, 269 flow [2023-08-25 07:55:51,634 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=269, PETRI_PLACES=58, PETRI_TRANSITIONS=56} [2023-08-25 07:55:51,635 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 3 predicate places. [2023-08-25 07:55:51,635 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 56 transitions, 269 flow [2023-08-25 07:55:51,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:51,635 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:55:51,635 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:55:51,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 07:55:51,636 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting allocatorErr3ASSERT_VIOLATIONDATA_RACE === [allocatorErr0ASSERT_VIOLATIONDATA_RACE, allocatorErr3ASSERT_VIOLATIONDATA_RACE, allocatorErr1ASSERT_VIOLATIONDATA_RACE, allocatorErr4ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 07:55:51,636 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:55:51,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1316219062, now seen corresponding path program 1 times [2023-08-25 07:55:51,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:55:51,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750074080] [2023-08-25 07:55:51,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:55:51,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:55:51,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:55:51,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:55:51,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:55:51,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750074080] [2023-08-25 07:55:51,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750074080] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:55:51,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:55:51,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 07:55:51,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573643424] [2023-08-25 07:55:51,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:55:51,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:55:51,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:55:51,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:55:51,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:55:51,675 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 284 [2023-08-25 07:55:51,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 56 transitions, 269 flow. Second operand has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:51,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:55:51,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 284 [2023-08-25 07:55:51,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:55:51,712 INFO L124 PetriNetUnfolderBase]: 67/172 cut-off events. [2023-08-25 07:55:51,712 INFO L125 PetriNetUnfolderBase]: For 131/137 co-relation queries the response was YES. [2023-08-25 07:55:51,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 496 conditions, 172 events. 67/172 cut-off events. For 131/137 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 556 event pairs, 32 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 485. Up to 117 conditions per place. [2023-08-25 07:55:51,713 INFO L140 encePairwiseOnDemand]: 282/284 looper letters, 0 selfloop transitions, 0 changer transitions 29/29 dead transitions. [2023-08-25 07:55:51,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 29 transitions, 156 flow [2023-08-25 07:55:51,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:55:51,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:55:51,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 439 transitions. [2023-08-25 07:55:51,715 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5152582159624414 [2023-08-25 07:55:51,715 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 439 transitions. [2023-08-25 07:55:51,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 439 transitions. [2023-08-25 07:55:51,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:55:51,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 439 transitions. [2023-08-25 07:55:51,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:51,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:51,718 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:51,718 INFO L175 Difference]: Start difference. First operand has 58 places, 56 transitions, 269 flow. Second operand 3 states and 439 transitions. [2023-08-25 07:55:51,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 29 transitions, 156 flow [2023-08-25 07:55:51,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 29 transitions, 127 flow, removed 6 selfloop flow, removed 11 redundant places. [2023-08-25 07:55:51,719 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2023-08-25 07:55:51,719 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2023-08-25 07:55:51,719 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, -20 predicate places. [2023-08-25 07:55:51,719 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2023-08-25 07:55:51,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:51,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location allocatorErr0ASSERT_VIOLATIONDATA_RACE (25 of 26 remaining) [2023-08-25 07:55:51,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location allocatorErr3ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2023-08-25 07:55:51,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location allocatorErr1ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2023-08-25 07:55:51,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location allocatorErr4ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2023-08-25 07:55:51,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location allocatorErr5ASSERT_VIOLATIONASSERT (21 of 26 remaining) [2023-08-25 07:55:51,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location allocatorErr2ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2023-08-25 07:55:51,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location de_allocatorErr0ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2023-08-25 07:55:51,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location de_allocatorErr1ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2023-08-25 07:55:51,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location de_allocatorErr2ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2023-08-25 07:55:51,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location de_allocatorErr3ASSERT_VIOLATIONASSERT (16 of 26 remaining) [2023-08-25 07:55:51,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 26 remaining) [2023-08-25 07:55:51,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2023-08-25 07:55:51,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2023-08-25 07:55:51,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2023-08-25 07:55:51,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 26 remaining) [2023-08-25 07:55:51,724 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 26 remaining) [2023-08-25 07:55:51,724 INFO L805 garLoopResultBuilder]: Registering result SAFE for location allocatorErr0ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2023-08-25 07:55:51,724 INFO L805 garLoopResultBuilder]: Registering result SAFE for location allocatorErr3ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2023-08-25 07:55:51,724 INFO L805 garLoopResultBuilder]: Registering result SAFE for location allocatorErr1ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2023-08-25 07:55:51,724 INFO L805 garLoopResultBuilder]: Registering result SAFE for location allocatorErr4ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2023-08-25 07:55:51,724 INFO L805 garLoopResultBuilder]: Registering result SAFE for location allocatorErr5ASSERT_VIOLATIONASSERT (5 of 26 remaining) [2023-08-25 07:55:51,724 INFO L805 garLoopResultBuilder]: Registering result SAFE for location allocatorErr2ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2023-08-25 07:55:51,724 INFO L805 garLoopResultBuilder]: Registering result SAFE for location de_allocatorErr0ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2023-08-25 07:55:51,724 INFO L805 garLoopResultBuilder]: Registering result SAFE for location de_allocatorErr1ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2023-08-25 07:55:51,725 INFO L805 garLoopResultBuilder]: Registering result SAFE for location de_allocatorErr2ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2023-08-25 07:55:51,725 INFO L805 garLoopResultBuilder]: Registering result SAFE for location de_allocatorErr3ASSERT_VIOLATIONASSERT (0 of 26 remaining) [2023-08-25 07:55:51,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 07:55:51,725 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:55:51,729 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 07:55:51,729 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 07:55:51,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 07:55:51 BasicIcfg [2023-08-25 07:55:51,732 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 07:55:51,732 INFO L158 Benchmark]: Toolchain (without parser) took 7106.56ms. Allocated memory was 369.1MB in the beginning and 457.2MB in the end (delta: 88.1MB). Free memory was 343.8MB in the beginning and 274.1MB in the end (delta: 69.8MB). Peak memory consumption was 158.3MB. Max. memory is 16.0GB. [2023-08-25 07:55:51,733 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 369.1MB. Free memory is still 345.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 07:55:51,733 INFO L158 Benchmark]: CACSL2BoogieTranslator took 491.90ms. Allocated memory is still 369.1MB. Free memory was 343.8MB in the beginning and 323.8MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 07:55:51,733 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.61ms. Allocated memory is still 369.1MB. Free memory was 323.8MB in the beginning and 321.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 07:55:51,733 INFO L158 Benchmark]: Boogie Preprocessor took 33.83ms. Allocated memory is still 369.1MB. Free memory was 321.4MB in the beginning and 319.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 07:55:51,733 INFO L158 Benchmark]: RCFGBuilder took 509.30ms. Allocated memory is still 369.1MB. Free memory was 319.8MB in the beginning and 302.4MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-25 07:55:51,734 INFO L158 Benchmark]: TraceAbstraction took 6001.04ms. Allocated memory was 369.1MB in the beginning and 457.2MB in the end (delta: 88.1MB). Free memory was 301.9MB in the beginning and 274.1MB in the end (delta: 27.8MB). Peak memory consumption was 116.4MB. Max. memory is 16.0GB. [2023-08-25 07:55:51,735 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 369.1MB. Free memory is still 345.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 491.90ms. Allocated memory is still 369.1MB. Free memory was 343.8MB in the beginning and 323.8MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 65.61ms. Allocated memory is still 369.1MB. Free memory was 323.8MB in the beginning and 321.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 33.83ms. Allocated memory is still 369.1MB. Free memory was 321.4MB in the beginning and 319.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 509.30ms. Allocated memory is still 369.1MB. Free memory was 319.8MB in the beginning and 302.4MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 6001.04ms. Allocated memory was 369.1MB in the beginning and 457.2MB in the end (delta: 88.1MB). Free memory was 301.9MB in the beginning and 274.1MB in the end (delta: 27.8MB). Peak memory consumption was 116.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 253]: Unsoundness Warning unspecified type, defaulting to int C: short [253] - GenericResultAtLocation [Line: 253]: Unsoundness Warning unspecified type, defaulting to int C: short [253] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.5s, 143 PlacesBefore, 55 PlacesAfterwards, 143 TransitionsBefore, 53 TransitionsAfterwards, 4916 CoEnabledTransitionPairs, 7 FixpointIterations, 48 TrivialSequentialCompositions, 65 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 11 ConcurrentYvCompositions, 2 ChoiceCompositions, 130 TotalNumberOfCompositions, 19954 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8615, independent: 8069, independent conditional: 0, independent unconditional: 8069, dependent: 546, dependent conditional: 0, dependent unconditional: 546, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2855, independent: 2773, independent conditional: 0, independent unconditional: 2773, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8615, independent: 5296, independent conditional: 0, independent unconditional: 5296, dependent: 464, dependent conditional: 0, dependent unconditional: 464, unknown: 2855, unknown conditional: 0, unknown unconditional: 2855] , Statistics on independence cache: Total cache size (in pairs): 470, Positive cache size: 424, Positive conditional cache size: 0, Positive unconditional cache size: 424, Negative cache size: 46, Negative conditional cache size: 0, Negative unconditional cache size: 46, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 695]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 701]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 16]: assertion always holds For all program executions holds that assertion always holds 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 - PositiveResult [Line: 708]: there are no data races For all program executions holds that there are no data races 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: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 16]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 717]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 717]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 722]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 723]: 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 5 procedures, 219 locations, 26 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.9s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 153 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 153 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 593 IncrementalHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 31 mSDtfsCounter, 593 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=9, InterpolantAutomatonStates: 32, 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, 0.4s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 171 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 07:55:51,750 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...