/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/goblint-regression/28-race_reach_46-escape_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 18:15:27,911 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 18:15:28,003 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 18:15:28,013 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 18:15:28,014 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 18:15:28,047 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 18:15:28,048 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 18:15:28,050 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 18:15:28,051 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 18:15:28,051 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 18:15:28,051 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 18:15:28,052 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 18:15:28,052 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 18:15:28,052 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 18:15:28,052 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 18:15:28,053 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 18:15:28,053 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 18:15:28,057 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 18:15:28,057 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 18:15:28,057 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 18:15:28,057 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 18:15:28,061 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 18:15:28,061 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 18:15:28,062 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 18:15:28,062 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 18:15:28,062 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 18:15:28,062 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 18:15:28,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 18:15:28,063 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 18:15:28,063 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 18:15:28,063 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 18:15:28,063 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 18:15:28,064 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 18:15:28,064 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 18:15:28,064 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 18:15:28,064 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 18:15:28,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 18:15:28,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 18:15:28,385 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 18:15:28,386 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 18:15:28,388 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 18:15:28,390 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2023-08-25 18:15:29,686 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 18:15:29,929 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 18:15:29,930 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2023-08-25 18:15:29,943 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b41d16d60/c47f8c85c6c44c569fda54db68f46e0d/FLAGe9b65846b [2023-08-25 18:15:29,954 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b41d16d60/c47f8c85c6c44c569fda54db68f46e0d [2023-08-25 18:15:29,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 18:15:29,958 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 18:15:29,959 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 18:15:29,959 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 18:15:29,961 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 18:15:29,962 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 06:15:29" (1/1) ... [2023-08-25 18:15:29,963 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e5fd22a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:15:29, skipping insertion in model container [2023-08-25 18:15:29,963 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 06:15:29" (1/1) ... [2023-08-25 18:15:30,009 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 18:15:30,351 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 18:15:30,365 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 18:15:30,394 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 18:15:30,395 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 18:15:30,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 18:15:30,472 INFO L206 MainTranslator]: Completed translation [2023-08-25 18:15:30,473 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:15:30 WrapperNode [2023-08-25 18:15:30,473 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 18:15:30,474 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 18:15:30,474 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 18:15:30,474 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 18:15:30,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:15:30" (1/1) ... [2023-08-25 18:15:30,509 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:15:30" (1/1) ... [2023-08-25 18:15:30,529 INFO L138 Inliner]: procedures = 170, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 84 [2023-08-25 18:15:30,529 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 18:15:30,530 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 18:15:30,530 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 18:15:30,530 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 18:15:30,538 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:15:30" (1/1) ... [2023-08-25 18:15:30,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:15:30" (1/1) ... [2023-08-25 18:15:30,544 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:15:30" (1/1) ... [2023-08-25 18:15:30,544 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:15:30" (1/1) ... [2023-08-25 18:15:30,566 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:15:30" (1/1) ... [2023-08-25 18:15:30,569 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:15:30" (1/1) ... [2023-08-25 18:15:30,571 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:15:30" (1/1) ... [2023-08-25 18:15:30,572 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:15:30" (1/1) ... [2023-08-25 18:15:30,582 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 18:15:30,583 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 18:15:30,583 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 18:15:30,584 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 18:15:30,584 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:15:30" (1/1) ... [2023-08-25 18:15:30,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 18:15:30,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 18:15:30,617 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 18:15:30,630 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 18:15:30,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 18:15:30,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 18:15:30,653 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 18:15:30,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 18:15:30,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 18:15:30,654 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 18:15:30,654 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 18:15:30,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 18:15:30,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 18:15:30,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 18:15:30,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 18:15:30,657 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 18:15:30,766 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 18:15:30,768 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 18:15:31,016 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 18:15:31,023 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 18:15:31,024 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-08-25 18:15:31,025 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 06:15:31 BoogieIcfgContainer [2023-08-25 18:15:31,026 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 18:15:31,028 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 18:15:31,028 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 18:15:31,031 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 18:15:31,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 06:15:29" (1/3) ... [2023-08-25 18:15:31,031 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1acaee8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 06:15:31, skipping insertion in model container [2023-08-25 18:15:31,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:15:30" (2/3) ... [2023-08-25 18:15:31,032 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1acaee8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 06:15:31, skipping insertion in model container [2023-08-25 18:15:31,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 06:15:31" (3/3) ... [2023-08-25 18:15:31,033 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2023-08-25 18:15:31,048 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 18:15:31,048 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-08-25 18:15:31,049 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 18:15:31,117 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-25 18:15:31,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 148 transitions, 304 flow [2023-08-25 18:15:31,199 INFO L124 PetriNetUnfolderBase]: 10/147 cut-off events. [2023-08-25 18:15:31,199 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 18:15:31,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 147 events. 10/147 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 305 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 99. Up to 3 conditions per place. [2023-08-25 18:15:31,205 INFO L82 GeneralOperation]: Start removeDead. Operand has 142 places, 148 transitions, 304 flow [2023-08-25 18:15:31,209 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 138 transitions, 279 flow [2023-08-25 18:15:31,212 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 18:15:31,220 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 132 places, 138 transitions, 279 flow [2023-08-25 18:15:31,223 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 132 places, 138 transitions, 279 flow [2023-08-25 18:15:31,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 138 transitions, 279 flow [2023-08-25 18:15:31,253 INFO L124 PetriNetUnfolderBase]: 10/138 cut-off events. [2023-08-25 18:15:31,253 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 18:15:31,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 138 events. 10/138 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 250 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 99. Up to 3 conditions per place. [2023-08-25 18:15:31,257 INFO L119 LiptonReduction]: Number of co-enabled transitions 4636 [2023-08-25 18:15:34,781 INFO L134 LiptonReduction]: Checked pairs total: 24858 [2023-08-25 18:15:34,782 INFO L136 LiptonReduction]: Total number of compositions: 92 [2023-08-25 18:15:34,793 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 18:15:34,799 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;@64f88078, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 18:15:34,799 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-08-25 18:15:34,804 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 18:15:34,804 INFO L124 PetriNetUnfolderBase]: 2/31 cut-off events. [2023-08-25 18:15:34,805 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 18:15:34,805 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:15:34,805 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 18:15:34,806 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (and 9 more)] === [2023-08-25 18:15:34,810 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:15:34,810 INFO L85 PathProgramCache]: Analyzing trace with hash 108398595, now seen corresponding path program 1 times [2023-08-25 18:15:34,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:15:34,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443837542] [2023-08-25 18:15:34,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:15:34,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:15:34,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:15:35,420 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 18:15:35,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:15:35,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443837542] [2023-08-25 18:15:35,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443837542] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:15:35,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:15:35,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 18:15:35,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421267950] [2023-08-25 18:15:35,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:15:35,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 18:15:35,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:15:35,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 18:15:35,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 18:15:35,463 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 240 [2023-08-25 18:15:35,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 62 transitions, 127 flow. Second operand has 6 states, 6 states have (on average 94.66666666666667) internal successors, (568), 6 states have internal predecessors, (568), 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 18:15:35,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:15:35,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 240 [2023-08-25 18:15:35,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:15:36,054 INFO L124 PetriNetUnfolderBase]: 781/1717 cut-off events. [2023-08-25 18:15:36,054 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 18:15:36,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3370 conditions, 1717 events. 781/1717 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 9383 event pairs, 108 based on Foata normal form. 17/1490 useless extension candidates. Maximal degree in co-relation 3361. Up to 888 conditions per place. [2023-08-25 18:15:36,068 INFO L140 encePairwiseOnDemand]: 217/240 looper letters, 148 selfloop transitions, 38 changer transitions 0/190 dead transitions. [2023-08-25 18:15:36,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 190 transitions, 755 flow [2023-08-25 18:15:36,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 18:15:36,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 18:15:36,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 778 transitions. [2023-08-25 18:15:36,083 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5402777777777777 [2023-08-25 18:15:36,084 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 778 transitions. [2023-08-25 18:15:36,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 778 transitions. [2023-08-25 18:15:36,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:15:36,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 778 transitions. [2023-08-25 18:15:36,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 129.66666666666666) internal successors, (778), 6 states have internal predecessors, (778), 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 18:15:36,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 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 18:15:36,101 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 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 18:15:36,103 INFO L175 Difference]: Start difference. First operand has 58 places, 62 transitions, 127 flow. Second operand 6 states and 778 transitions. [2023-08-25 18:15:36,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 190 transitions, 755 flow [2023-08-25 18:15:36,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 190 transitions, 754 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 18:15:36,111 INFO L231 Difference]: Finished difference. Result has 67 places, 91 transitions, 364 flow [2023-08-25 18:15:36,113 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=364, PETRI_PLACES=67, PETRI_TRANSITIONS=91} [2023-08-25 18:15:36,116 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 9 predicate places. [2023-08-25 18:15:36,116 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 91 transitions, 364 flow [2023-08-25 18:15:36,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 94.66666666666667) internal successors, (568), 6 states have internal predecessors, (568), 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 18:15:36,117 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:15:36,117 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 18:15:36,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 18:15:36,117 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (and 9 more)] === [2023-08-25 18:15:36,118 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:15:36,118 INFO L85 PathProgramCache]: Analyzing trace with hash -2052711007, now seen corresponding path program 1 times [2023-08-25 18:15:36,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:15:36,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762420946] [2023-08-25 18:15:36,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:15:36,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:15:36,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:15:36,306 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 18:15:36,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:15:36,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762420946] [2023-08-25 18:15:36,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762420946] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:15:36,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:15:36,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 18:15:36,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213026311] [2023-08-25 18:15:36,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:15:36,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 18:15:36,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:15:36,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 18:15:36,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 18:15:36,310 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 240 [2023-08-25 18:15:36,311 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 91 transitions, 364 flow. Second operand has 6 states, 6 states have (on average 95.5) internal successors, (573), 6 states have internal predecessors, (573), 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 18:15:36,311 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:15:36,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 240 [2023-08-25 18:15:36,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:15:36,680 INFO L124 PetriNetUnfolderBase]: 722/1555 cut-off events. [2023-08-25 18:15:36,681 INFO L125 PetriNetUnfolderBase]: For 570/570 co-relation queries the response was YES. [2023-08-25 18:15:36,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3907 conditions, 1555 events. 722/1555 cut-off events. For 570/570 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 8032 event pairs, 286 based on Foata normal form. 0/1378 useless extension candidates. Maximal degree in co-relation 3894. Up to 994 conditions per place. [2023-08-25 18:15:36,691 INFO L140 encePairwiseOnDemand]: 228/240 looper letters, 151 selfloop transitions, 18 changer transitions 0/173 dead transitions. [2023-08-25 18:15:36,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 173 transitions, 1010 flow [2023-08-25 18:15:36,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 18:15:36,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 18:15:36,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 678 transitions. [2023-08-25 18:15:36,693 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4708333333333333 [2023-08-25 18:15:36,694 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 678 transitions. [2023-08-25 18:15:36,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 678 transitions. [2023-08-25 18:15:36,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:15:36,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 678 transitions. [2023-08-25 18:15:36,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 113.0) internal successors, (678), 6 states have internal predecessors, (678), 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 18:15:36,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 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 18:15:36,699 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 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 18:15:36,699 INFO L175 Difference]: Start difference. First operand has 67 places, 91 transitions, 364 flow. Second operand 6 states and 678 transitions. [2023-08-25 18:15:36,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 173 transitions, 1010 flow [2023-08-25 18:15:36,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 173 transitions, 1010 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 18:15:36,706 INFO L231 Difference]: Finished difference. Result has 70 places, 89 transitions, 396 flow [2023-08-25 18:15:36,706 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=396, PETRI_PLACES=70, PETRI_TRANSITIONS=89} [2023-08-25 18:15:36,707 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 12 predicate places. [2023-08-25 18:15:36,707 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 89 transitions, 396 flow [2023-08-25 18:15:36,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 95.5) internal successors, (573), 6 states have internal predecessors, (573), 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 18:15:36,708 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:15:36,708 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 18:15:36,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 18:15:36,708 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (and 9 more)] === [2023-08-25 18:15:36,709 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:15:36,709 INFO L85 PathProgramCache]: Analyzing trace with hash 108398799, now seen corresponding path program 1 times [2023-08-25 18:15:36,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:15:36,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222030495] [2023-08-25 18:15:36,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:15:36,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:15:36,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:15:36,829 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 18:15:36,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:15:36,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222030495] [2023-08-25 18:15:36,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222030495] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:15:36,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:15:36,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 18:15:36,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150198736] [2023-08-25 18:15:36,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:15:36,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 18:15:36,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:15:36,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 18:15:36,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 18:15:36,832 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 240 [2023-08-25 18:15:36,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 89 transitions, 396 flow. Second operand has 4 states, 4 states have (on average 105.5) internal successors, (422), 4 states have internal predecessors, (422), 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 18:15:36,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:15:36,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 240 [2023-08-25 18:15:36,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:15:37,027 INFO L124 PetriNetUnfolderBase]: 425/1273 cut-off events. [2023-08-25 18:15:37,028 INFO L125 PetriNetUnfolderBase]: For 582/590 co-relation queries the response was YES. [2023-08-25 18:15:37,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3157 conditions, 1273 events. 425/1273 cut-off events. For 582/590 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 7840 event pairs, 135 based on Foata normal form. 0/1212 useless extension candidates. Maximal degree in co-relation 3143. Up to 526 conditions per place. [2023-08-25 18:15:37,036 INFO L140 encePairwiseOnDemand]: 235/240 looper letters, 78 selfloop transitions, 7 changer transitions 0/132 dead transitions. [2023-08-25 18:15:37,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 132 transitions, 760 flow [2023-08-25 18:15:37,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 18:15:37,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 18:15:37,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 577 transitions. [2023-08-25 18:15:37,039 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48083333333333333 [2023-08-25 18:15:37,039 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 577 transitions. [2023-08-25 18:15:37,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 577 transitions. [2023-08-25 18:15:37,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:15:37,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 577 transitions. [2023-08-25 18:15:37,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 115.4) internal successors, (577), 5 states have internal predecessors, (577), 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 18:15:37,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 240.0) internal successors, (1440), 6 states have internal predecessors, (1440), 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 18:15:37,044 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 240.0) internal successors, (1440), 6 states have internal predecessors, (1440), 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 18:15:37,044 INFO L175 Difference]: Start difference. First operand has 70 places, 89 transitions, 396 flow. Second operand 5 states and 577 transitions. [2023-08-25 18:15:37,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 132 transitions, 760 flow [2023-08-25 18:15:37,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 132 transitions, 700 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 18:15:37,050 INFO L231 Difference]: Finished difference. Result has 72 places, 94 transitions, 414 flow [2023-08-25 18:15:37,051 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=414, PETRI_PLACES=72, PETRI_TRANSITIONS=94} [2023-08-25 18:15:37,051 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 14 predicate places. [2023-08-25 18:15:37,052 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 94 transitions, 414 flow [2023-08-25 18:15:37,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 105.5) internal successors, (422), 4 states have internal predecessors, (422), 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 18:15:37,052 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:15:37,052 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 18:15:37,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 18:15:37,053 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (and 9 more)] === [2023-08-25 18:15:37,053 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:15:37,053 INFO L85 PathProgramCache]: Analyzing trace with hash 875629, now seen corresponding path program 1 times [2023-08-25 18:15:37,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:15:37,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749094983] [2023-08-25 18:15:37,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:15:37,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:15:37,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:15:37,246 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 18:15:37,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:15:37,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749094983] [2023-08-25 18:15:37,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749094983] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:15:37,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:15:37,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 18:15:37,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544814615] [2023-08-25 18:15:37,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:15:37,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 18:15:37,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:15:37,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 18:15:37,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 18:15:37,249 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 240 [2023-08-25 18:15:37,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 94 transitions, 414 flow. Second operand has 6 states, 6 states have (on average 94.5) internal successors, (567), 6 states have internal predecessors, (567), 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 18:15:37,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:15:37,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 240 [2023-08-25 18:15:37,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:15:37,669 INFO L124 PetriNetUnfolderBase]: 1032/2219 cut-off events. [2023-08-25 18:15:37,670 INFO L125 PetriNetUnfolderBase]: For 1288/1290 co-relation queries the response was YES. [2023-08-25 18:15:37,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6081 conditions, 2219 events. 1032/2219 cut-off events. For 1288/1290 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 12606 event pairs, 475 based on Foata normal form. 0/2049 useless extension candidates. Maximal degree in co-relation 6063. Up to 1944 conditions per place. [2023-08-25 18:15:37,684 INFO L140 encePairwiseOnDemand]: 225/240 looper letters, 123 selfloop transitions, 48 changer transitions 0/176 dead transitions. [2023-08-25 18:15:37,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 176 transitions, 1089 flow [2023-08-25 18:15:37,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 18:15:37,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 18:15:37,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 670 transitions. [2023-08-25 18:15:37,687 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4652777777777778 [2023-08-25 18:15:37,687 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 670 transitions. [2023-08-25 18:15:37,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 670 transitions. [2023-08-25 18:15:37,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:15:37,688 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 670 transitions. [2023-08-25 18:15:37,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 111.66666666666667) internal successors, (670), 6 states have internal predecessors, (670), 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 18:15:37,691 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 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 18:15:37,692 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 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 18:15:37,692 INFO L175 Difference]: Start difference. First operand has 72 places, 94 transitions, 414 flow. Second operand 6 states and 670 transitions. [2023-08-25 18:15:37,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 176 transitions, 1089 flow [2023-08-25 18:15:37,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 176 transitions, 1089 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 18:15:37,699 INFO L231 Difference]: Finished difference. Result has 82 places, 137 transitions, 802 flow [2023-08-25 18:15:37,700 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=802, PETRI_PLACES=82, PETRI_TRANSITIONS=137} [2023-08-25 18:15:37,700 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 24 predicate places. [2023-08-25 18:15:37,701 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 137 transitions, 802 flow [2023-08-25 18:15:37,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 94.5) internal successors, (567), 6 states have internal predecessors, (567), 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 18:15:37,701 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:15:37,701 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 18:15:37,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 18:15:37,701 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (and 9 more)] === [2023-08-25 18:15:37,702 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:15:37,702 INFO L85 PathProgramCache]: Analyzing trace with hash -594759395, now seen corresponding path program 1 times [2023-08-25 18:15:37,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:15:37,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715020814] [2023-08-25 18:15:37,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:15:37,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:15:37,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:15:37,907 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 18:15:37,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:15:37,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715020814] [2023-08-25 18:15:37,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715020814] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:15:37,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:15:37,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 18:15:37,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077864940] [2023-08-25 18:15:37,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:15:37,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 18:15:37,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:15:37,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 18:15:37,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 18:15:37,909 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 240 [2023-08-25 18:15:37,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 137 transitions, 802 flow. Second operand has 6 states, 6 states have (on average 95.66666666666667) internal successors, (574), 6 states have internal predecessors, (574), 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 18:15:37,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:15:37,910 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 240 [2023-08-25 18:15:37,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:15:38,521 INFO L124 PetriNetUnfolderBase]: 1132/2431 cut-off events. [2023-08-25 18:15:38,521 INFO L125 PetriNetUnfolderBase]: For 2520/2524 co-relation queries the response was YES. [2023-08-25 18:15:38,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7904 conditions, 2431 events. 1132/2431 cut-off events. For 2520/2524 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 14205 event pairs, 353 based on Foata normal form. 0/2330 useless extension candidates. Maximal degree in co-relation 7881. Up to 1904 conditions per place. [2023-08-25 18:15:38,537 INFO L140 encePairwiseOnDemand]: 226/240 looper letters, 203 selfloop transitions, 75 changer transitions 12/296 dead transitions. [2023-08-25 18:15:38,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 296 transitions, 2034 flow [2023-08-25 18:15:38,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 18:15:38,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 18:15:38,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 727 transitions. [2023-08-25 18:15:38,543 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5048611111111111 [2023-08-25 18:15:38,543 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 727 transitions. [2023-08-25 18:15:38,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 727 transitions. [2023-08-25 18:15:38,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:15:38,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 727 transitions. [2023-08-25 18:15:38,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 121.16666666666667) internal successors, (727), 6 states have internal predecessors, (727), 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 18:15:38,547 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 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 18:15:38,547 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 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 18:15:38,548 INFO L175 Difference]: Start difference. First operand has 82 places, 137 transitions, 802 flow. Second operand 6 states and 727 transitions. [2023-08-25 18:15:38,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 296 transitions, 2034 flow [2023-08-25 18:15:38,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 296 transitions, 2016 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-08-25 18:15:38,562 INFO L231 Difference]: Finished difference. Result has 92 places, 207 transitions, 1560 flow [2023-08-25 18:15:38,563 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=784, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1560, PETRI_PLACES=92, PETRI_TRANSITIONS=207} [2023-08-25 18:15:38,563 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 34 predicate places. [2023-08-25 18:15:38,563 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 207 transitions, 1560 flow [2023-08-25 18:15:38,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 95.66666666666667) internal successors, (574), 6 states have internal predecessors, (574), 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 18:15:38,564 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:15:38,564 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 18:15:38,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 18:15:38,564 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (and 9 more)] === [2023-08-25 18:15:38,564 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:15:38,565 INFO L85 PathProgramCache]: Analyzing trace with hash -302095287, now seen corresponding path program 1 times [2023-08-25 18:15:38,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:15:38,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156672777] [2023-08-25 18:15:38,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:15:38,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:15:38,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:15:38,656 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 18:15:38,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:15:38,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156672777] [2023-08-25 18:15:38,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156672777] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:15:38,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:15:38,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 18:15:38,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026713132] [2023-08-25 18:15:38,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:15:38,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 18:15:38,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:15:38,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 18:15:38,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 18:15:38,658 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 240 [2023-08-25 18:15:38,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 207 transitions, 1560 flow. Second operand has 4 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 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 18:15:38,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:15:38,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 240 [2023-08-25 18:15:38,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:15:38,731 INFO L124 PetriNetUnfolderBase]: 98/396 cut-off events. [2023-08-25 18:15:38,731 INFO L125 PetriNetUnfolderBase]: For 615/647 co-relation queries the response was YES. [2023-08-25 18:15:38,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1293 conditions, 396 events. 98/396 cut-off events. For 615/647 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1831 event pairs, 3 based on Foata normal form. 17/411 useless extension candidates. Maximal degree in co-relation 1267. Up to 112 conditions per place. [2023-08-25 18:15:38,734 INFO L140 encePairwiseOnDemand]: 235/240 looper letters, 28 selfloop transitions, 5 changer transitions 1/117 dead transitions. [2023-08-25 18:15:38,734 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 117 transitions, 868 flow [2023-08-25 18:15:38,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 18:15:38,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 18:15:38,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 476 transitions. [2023-08-25 18:15:38,736 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49583333333333335 [2023-08-25 18:15:38,736 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 476 transitions. [2023-08-25 18:15:38,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 476 transitions. [2023-08-25 18:15:38,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:15:38,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 476 transitions. [2023-08-25 18:15:38,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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 18:15:38,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 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 18:15:38,739 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 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 18:15:38,739 INFO L175 Difference]: Start difference. First operand has 92 places, 207 transitions, 1560 flow. Second operand 4 states and 476 transitions. [2023-08-25 18:15:38,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 117 transitions, 868 flow [2023-08-25 18:15:38,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 117 transitions, 734 flow, removed 58 selfloop flow, removed 8 redundant places. [2023-08-25 18:15:38,746 INFO L231 Difference]: Finished difference. Result has 85 places, 116 transitions, 672 flow [2023-08-25 18:15:38,746 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=666, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=672, PETRI_PLACES=85, PETRI_TRANSITIONS=116} [2023-08-25 18:15:38,747 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 27 predicate places. [2023-08-25 18:15:38,747 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 116 transitions, 672 flow [2023-08-25 18:15:38,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 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 18:15:38,747 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:15:38,747 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 18:15:38,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 18:15:38,748 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (and 9 more)] === [2023-08-25 18:15:38,748 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:15:38,748 INFO L85 PathProgramCache]: Analyzing trace with hash -649931810, now seen corresponding path program 1 times [2023-08-25 18:15:38,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:15:38,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976701738] [2023-08-25 18:15:38,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:15:38,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:15:38,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:15:39,164 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 18:15:39,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:15:39,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976701738] [2023-08-25 18:15:39,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976701738] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:15:39,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:15:39,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 18:15:39,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36243028] [2023-08-25 18:15:39,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:15:39,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 18:15:39,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:15:39,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 18:15:39,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-25 18:15:39,168 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 240 [2023-08-25 18:15:39,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 116 transitions, 672 flow. Second operand has 11 states, 11 states have (on average 82.36363636363636) internal successors, (906), 11 states have internal predecessors, (906), 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 18:15:39,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:15:39,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 240 [2023-08-25 18:15:39,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:15:39,572 INFO L124 PetriNetUnfolderBase]: 300/727 cut-off events. [2023-08-25 18:15:39,572 INFO L125 PetriNetUnfolderBase]: For 962/962 co-relation queries the response was YES. [2023-08-25 18:15:39,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2503 conditions, 727 events. 300/727 cut-off events. For 962/962 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3096 event pairs, 49 based on Foata normal form. 11/724 useless extension candidates. Maximal degree in co-relation 2478. Up to 529 conditions per place. [2023-08-25 18:15:39,577 INFO L140 encePairwiseOnDemand]: 231/240 looper letters, 132 selfloop transitions, 32 changer transitions 0/166 dead transitions. [2023-08-25 18:15:39,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 166 transitions, 1277 flow [2023-08-25 18:15:39,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 18:15:39,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 18:15:39,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 810 transitions. [2023-08-25 18:15:39,582 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.375 [2023-08-25 18:15:39,582 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 810 transitions. [2023-08-25 18:15:39,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 810 transitions. [2023-08-25 18:15:39,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:15:39,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 810 transitions. [2023-08-25 18:15:39,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 90.0) internal successors, (810), 9 states have internal predecessors, (810), 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 18:15:39,589 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 240.0) internal successors, (2400), 10 states have internal predecessors, (2400), 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 18:15:39,590 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 240.0) internal successors, (2400), 10 states have internal predecessors, (2400), 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 18:15:39,590 INFO L175 Difference]: Start difference. First operand has 85 places, 116 transitions, 672 flow. Second operand 9 states and 810 transitions. [2023-08-25 18:15:39,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 166 transitions, 1277 flow [2023-08-25 18:15:39,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 166 transitions, 1262 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 18:15:39,597 INFO L231 Difference]: Finished difference. Result has 88 places, 115 transitions, 719 flow [2023-08-25 18:15:39,597 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=655, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=719, PETRI_PLACES=88, PETRI_TRANSITIONS=115} [2023-08-25 18:15:39,598 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 30 predicate places. [2023-08-25 18:15:39,598 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 115 transitions, 719 flow [2023-08-25 18:15:39,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 82.36363636363636) internal successors, (906), 11 states have internal predecessors, (906), 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 18:15:39,599 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:15:39,601 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 18:15:39,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 18:15:39,602 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (and 9 more)] === [2023-08-25 18:15:39,602 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:15:39,603 INFO L85 PathProgramCache]: Analyzing trace with hash -93809320, now seen corresponding path program 1 times [2023-08-25 18:15:39,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:15:39,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863552702] [2023-08-25 18:15:39,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:15:39,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:15:39,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:15:40,097 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 18:15:40,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:15:40,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863552702] [2023-08-25 18:15:40,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863552702] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:15:40,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:15:40,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 18:15:40,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171254654] [2023-08-25 18:15:40,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:15:40,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 18:15:40,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:15:40,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 18:15:40,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-08-25 18:15:40,100 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 240 [2023-08-25 18:15:40,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 115 transitions, 719 flow. Second operand has 11 states, 11 states have (on average 84.36363636363636) internal successors, (928), 11 states have internal predecessors, (928), 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 18:15:40,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:15:40,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 240 [2023-08-25 18:15:40,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:15:40,726 INFO L124 PetriNetUnfolderBase]: 326/828 cut-off events. [2023-08-25 18:15:40,727 INFO L125 PetriNetUnfolderBase]: For 786/786 co-relation queries the response was YES. [2023-08-25 18:15:40,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2924 conditions, 828 events. 326/828 cut-off events. For 786/786 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3846 event pairs, 58 based on Foata normal form. 21/832 useless extension candidates. Maximal degree in co-relation 2898. Up to 426 conditions per place. [2023-08-25 18:15:40,733 INFO L140 encePairwiseOnDemand]: 223/240 looper letters, 174 selfloop transitions, 50 changer transitions 15/241 dead transitions. [2023-08-25 18:15:40,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 241 transitions, 1638 flow [2023-08-25 18:15:40,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 18:15:40,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 18:15:40,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 936 transitions. [2023-08-25 18:15:40,736 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43333333333333335 [2023-08-25 18:15:40,737 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 936 transitions. [2023-08-25 18:15:40,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 936 transitions. [2023-08-25 18:15:40,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:15:40,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 936 transitions. [2023-08-25 18:15:40,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 104.0) internal successors, (936), 9 states have internal predecessors, (936), 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 18:15:40,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 240.0) internal successors, (2400), 10 states have internal predecessors, (2400), 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 18:15:40,742 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 240.0) internal successors, (2400), 10 states have internal predecessors, (2400), 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 18:15:40,743 INFO L175 Difference]: Start difference. First operand has 88 places, 115 transitions, 719 flow. Second operand 9 states and 936 transitions. [2023-08-25 18:15:40,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 241 transitions, 1638 flow [2023-08-25 18:15:40,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 241 transitions, 1534 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-08-25 18:15:40,751 INFO L231 Difference]: Finished difference. Result has 91 places, 125 transitions, 910 flow [2023-08-25 18:15:40,752 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=655, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=910, PETRI_PLACES=91, PETRI_TRANSITIONS=125} [2023-08-25 18:15:40,752 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 33 predicate places. [2023-08-25 18:15:40,753 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 125 transitions, 910 flow [2023-08-25 18:15:40,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 84.36363636363636) internal successors, (928), 11 states have internal predecessors, (928), 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 18:15:40,753 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:15:40,753 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 18:15:40,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 18:15:40,754 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (and 9 more)] === [2023-08-25 18:15:40,754 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:15:40,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1566552804, now seen corresponding path program 2 times [2023-08-25 18:15:40,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:15:40,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384817969] [2023-08-25 18:15:40,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:15:40,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:15:40,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:15:41,112 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 18:15:41,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:15:41,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384817969] [2023-08-25 18:15:41,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384817969] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:15:41,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:15:41,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 18:15:41,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042263897] [2023-08-25 18:15:41,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:15:41,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 18:15:41,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:15:41,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 18:15:41,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-25 18:15:41,119 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 240 [2023-08-25 18:15:41,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 125 transitions, 910 flow. Second operand has 11 states, 11 states have (on average 84.36363636363636) internal successors, (928), 11 states have internal predecessors, (928), 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 18:15:41,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:15:41,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 240 [2023-08-25 18:15:41,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:15:41,655 INFO L124 PetriNetUnfolderBase]: 453/1089 cut-off events. [2023-08-25 18:15:41,656 INFO L125 PetriNetUnfolderBase]: For 1877/1877 co-relation queries the response was YES. [2023-08-25 18:15:41,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4149 conditions, 1089 events. 453/1089 cut-off events. For 1877/1877 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 5412 event pairs, 27 based on Foata normal form. 26/1094 useless extension candidates. Maximal degree in co-relation 4120. Up to 431 conditions per place. [2023-08-25 18:15:41,664 INFO L140 encePairwiseOnDemand]: 231/240 looper letters, 241 selfloop transitions, 35 changer transitions 12/290 dead transitions. [2023-08-25 18:15:41,665 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 290 transitions, 2234 flow [2023-08-25 18:15:41,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 18:15:41,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 18:15:41,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 999 transitions. [2023-08-25 18:15:41,668 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41625 [2023-08-25 18:15:41,668 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 999 transitions. [2023-08-25 18:15:41,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 999 transitions. [2023-08-25 18:15:41,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:15:41,669 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 999 transitions. [2023-08-25 18:15:41,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 99.9) internal successors, (999), 10 states have internal predecessors, (999), 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 18:15:41,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 240.0) internal successors, (2640), 11 states have internal predecessors, (2640), 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 18:15:41,675 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 240.0) internal successors, (2640), 11 states have internal predecessors, (2640), 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 18:15:41,675 INFO L175 Difference]: Start difference. First operand has 91 places, 125 transitions, 910 flow. Second operand 10 states and 999 transitions. [2023-08-25 18:15:41,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 290 transitions, 2234 flow [2023-08-25 18:15:41,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 290 transitions, 2178 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 18:15:41,689 INFO L231 Difference]: Finished difference. Result has 100 places, 148 transitions, 1200 flow [2023-08-25 18:15:41,689 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=868, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1200, PETRI_PLACES=100, PETRI_TRANSITIONS=148} [2023-08-25 18:15:41,690 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 42 predicate places. [2023-08-25 18:15:41,690 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 148 transitions, 1200 flow [2023-08-25 18:15:41,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 84.36363636363636) internal successors, (928), 11 states have internal predecessors, (928), 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 18:15:41,691 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:15:41,691 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 18:15:41,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 18:15:41,691 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (and 9 more)] === [2023-08-25 18:15:41,691 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:15:41,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1601145110, now seen corresponding path program 3 times [2023-08-25 18:15:41,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:15:41,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766536701] [2023-08-25 18:15:41,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:15:41,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:15:41,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:15:42,082 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 18:15:42,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:15:42,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766536701] [2023-08-25 18:15:42,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766536701] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:15:42,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:15:42,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 18:15:42,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640691357] [2023-08-25 18:15:42,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:15:42,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 18:15:42,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:15:42,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 18:15:42,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-25 18:15:42,085 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 240 [2023-08-25 18:15:42,088 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 148 transitions, 1200 flow. Second operand has 11 states, 11 states have (on average 84.36363636363636) internal successors, (928), 11 states have internal predecessors, (928), 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 18:15:42,088 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:15:42,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 240 [2023-08-25 18:15:42,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:15:42,933 INFO L124 PetriNetUnfolderBase]: 512/1267 cut-off events. [2023-08-25 18:15:42,933 INFO L125 PetriNetUnfolderBase]: For 4287/4287 co-relation queries the response was YES. [2023-08-25 18:15:42,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5543 conditions, 1267 events. 512/1267 cut-off events. For 4287/4287 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 6777 event pairs, 82 based on Foata normal form. 26/1268 useless extension candidates. Maximal degree in co-relation 5508. Up to 598 conditions per place. [2023-08-25 18:15:42,944 INFO L140 encePairwiseOnDemand]: 223/240 looper letters, 232 selfloop transitions, 63 changer transitions 18/315 dead transitions. [2023-08-25 18:15:42,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 315 transitions, 2504 flow [2023-08-25 18:15:42,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 18:15:42,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 18:15:42,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1047 transitions. [2023-08-25 18:15:42,948 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43625 [2023-08-25 18:15:42,948 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1047 transitions. [2023-08-25 18:15:42,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1047 transitions. [2023-08-25 18:15:42,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:15:42,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1047 transitions. [2023-08-25 18:15:42,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 104.7) internal successors, (1047), 10 states have internal predecessors, (1047), 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 18:15:42,954 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 240.0) internal successors, (2640), 11 states have internal predecessors, (2640), 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 18:15:42,954 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 240.0) internal successors, (2640), 11 states have internal predecessors, (2640), 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 18:15:42,954 INFO L175 Difference]: Start difference. First operand has 100 places, 148 transitions, 1200 flow. Second operand 10 states and 1047 transitions. [2023-08-25 18:15:42,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 315 transitions, 2504 flow [2023-08-25 18:15:42,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 315 transitions, 2494 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 18:15:42,976 INFO L231 Difference]: Finished difference. Result has 111 places, 168 transitions, 1674 flow [2023-08-25 18:15:42,977 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=1193, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1674, PETRI_PLACES=111, PETRI_TRANSITIONS=168} [2023-08-25 18:15:42,977 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 53 predicate places. [2023-08-25 18:15:42,977 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 168 transitions, 1674 flow [2023-08-25 18:15:42,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 84.36363636363636) internal successors, (928), 11 states have internal predecessors, (928), 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 18:15:42,978 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:15:42,978 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 18:15:42,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 18:15:42,978 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (and 9 more)] === [2023-08-25 18:15:42,978 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:15:42,978 INFO L85 PathProgramCache]: Analyzing trace with hash 892125632, now seen corresponding path program 4 times [2023-08-25 18:15:42,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:15:42,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181679679] [2023-08-25 18:15:42,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:15:42,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:15:42,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:15:43,332 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 18:15:43,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:15:43,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181679679] [2023-08-25 18:15:43,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181679679] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:15:43,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:15:43,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 18:15:43,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756706587] [2023-08-25 18:15:43,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:15:43,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 18:15:43,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:15:43,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 18:15:43,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-25 18:15:43,335 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 240 [2023-08-25 18:15:43,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 168 transitions, 1674 flow. Second operand has 11 states, 11 states have (on average 84.36363636363636) internal successors, (928), 11 states have internal predecessors, (928), 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 18:15:43,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:15:43,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 240 [2023-08-25 18:15:43,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:15:44,176 INFO L124 PetriNetUnfolderBase]: 604/1515 cut-off events. [2023-08-25 18:15:44,176 INFO L125 PetriNetUnfolderBase]: For 7972/7972 co-relation queries the response was YES. [2023-08-25 18:15:44,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7303 conditions, 1515 events. 604/1515 cut-off events. For 7972/7972 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 8724 event pairs, 70 based on Foata normal form. 26/1511 useless extension candidates. Maximal degree in co-relation 7263. Up to 419 conditions per place. [2023-08-25 18:15:44,192 INFO L140 encePairwiseOnDemand]: 223/240 looper letters, 287 selfloop transitions, 80 changer transitions 15/384 dead transitions. [2023-08-25 18:15:44,192 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 384 transitions, 3660 flow [2023-08-25 18:15:44,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 18:15:44,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 18:15:44,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1050 transitions. [2023-08-25 18:15:44,204 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4375 [2023-08-25 18:15:44,204 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1050 transitions. [2023-08-25 18:15:44,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1050 transitions. [2023-08-25 18:15:44,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:15:44,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1050 transitions. [2023-08-25 18:15:44,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 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 18:15:44,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 240.0) internal successors, (2640), 11 states have internal predecessors, (2640), 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 18:15:44,211 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 240.0) internal successors, (2640), 11 states have internal predecessors, (2640), 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 18:15:44,211 INFO L175 Difference]: Start difference. First operand has 111 places, 168 transitions, 1674 flow. Second operand 10 states and 1050 transitions. [2023-08-25 18:15:44,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 384 transitions, 3660 flow [2023-08-25 18:15:44,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 384 transitions, 3601 flow, removed 8 selfloop flow, removed 5 redundant places. [2023-08-25 18:15:44,252 INFO L231 Difference]: Finished difference. Result has 121 places, 206 transitions, 2471 flow [2023-08-25 18:15:44,252 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=1622, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2471, PETRI_PLACES=121, PETRI_TRANSITIONS=206} [2023-08-25 18:15:44,253 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 63 predicate places. [2023-08-25 18:15:44,253 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 206 transitions, 2471 flow [2023-08-25 18:15:44,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 84.36363636363636) internal successors, (928), 11 states have internal predecessors, (928), 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 18:15:44,254 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:15:44,254 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 18:15:44,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 18:15:44,254 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (and 9 more)] === [2023-08-25 18:15:44,254 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:15:44,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1629046162, now seen corresponding path program 5 times [2023-08-25 18:15:44,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:15:44,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293469791] [2023-08-25 18:15:44,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:15:44,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:15:44,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:15:44,634 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 18:15:44,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:15:44,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293469791] [2023-08-25 18:15:44,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293469791] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:15:44,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:15:44,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 18:15:44,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804703979] [2023-08-25 18:15:44,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:15:44,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 18:15:44,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:15:44,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 18:15:44,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-25 18:15:44,637 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 240 [2023-08-25 18:15:44,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 206 transitions, 2471 flow. Second operand has 11 states, 11 states have (on average 84.36363636363636) internal successors, (928), 11 states have internal predecessors, (928), 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 18:15:44,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:15:44,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 240 [2023-08-25 18:15:44,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:15:45,542 INFO L124 PetriNetUnfolderBase]: 577/1521 cut-off events. [2023-08-25 18:15:45,543 INFO L125 PetriNetUnfolderBase]: For 11144/11144 co-relation queries the response was YES. [2023-08-25 18:15:45,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7938 conditions, 1521 events. 577/1521 cut-off events. For 11144/11144 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 9090 event pairs, 49 based on Foata normal form. 26/1516 useless extension candidates. Maximal degree in co-relation 7892. Up to 581 conditions per place. [2023-08-25 18:15:45,555 INFO L140 encePairwiseOnDemand]: 223/240 looper letters, 271 selfloop transitions, 94 changer transitions 18/385 dead transitions. [2023-08-25 18:15:45,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 385 transitions, 4100 flow [2023-08-25 18:15:45,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 18:15:45,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 18:15:45,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1048 transitions. [2023-08-25 18:15:45,558 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43666666666666665 [2023-08-25 18:15:45,559 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1048 transitions. [2023-08-25 18:15:45,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1048 transitions. [2023-08-25 18:15:45,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:15:45,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1048 transitions. [2023-08-25 18:15:45,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 104.8) internal successors, (1048), 10 states have internal predecessors, (1048), 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 18:15:45,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 240.0) internal successors, (2640), 11 states have internal predecessors, (2640), 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 18:15:45,565 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 240.0) internal successors, (2640), 11 states have internal predecessors, (2640), 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 18:15:45,565 INFO L175 Difference]: Start difference. First operand has 121 places, 206 transitions, 2471 flow. Second operand 10 states and 1048 transitions. [2023-08-25 18:15:45,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 385 transitions, 4100 flow [2023-08-25 18:15:45,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 385 transitions, 4006 flow, removed 28 selfloop flow, removed 5 redundant places. [2023-08-25 18:15:45,615 INFO L231 Difference]: Finished difference. Result has 128 places, 223 transitions, 2999 flow [2023-08-25 18:15:45,615 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=2369, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2999, PETRI_PLACES=128, PETRI_TRANSITIONS=223} [2023-08-25 18:15:45,615 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 70 predicate places. [2023-08-25 18:15:45,616 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 223 transitions, 2999 flow [2023-08-25 18:15:45,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 84.36363636363636) internal successors, (928), 11 states have internal predecessors, (928), 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 18:15:45,616 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:15:45,616 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 18:15:45,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 18:15:45,617 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (and 9 more)] === [2023-08-25 18:15:45,617 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:15:45,617 INFO L85 PathProgramCache]: Analyzing trace with hash -380955823, now seen corresponding path program 1 times [2023-08-25 18:15:45,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:15:45,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729225463] [2023-08-25 18:15:45,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:15:45,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:15:45,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:15:45,811 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 18:15:45,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:15:45,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729225463] [2023-08-25 18:15:45,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729225463] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:15:45,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:15:45,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 18:15:45,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958175203] [2023-08-25 18:15:45,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:15:45,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 18:15:45,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:15:45,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 18:15:45,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 18:15:45,813 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 240 [2023-08-25 18:15:45,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 223 transitions, 2999 flow. Second operand has 6 states, 6 states have (on average 96.66666666666667) internal successors, (580), 6 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:15:45,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:15:45,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 240 [2023-08-25 18:15:45,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:15:46,191 INFO L124 PetriNetUnfolderBase]: 595/1585 cut-off events. [2023-08-25 18:15:46,191 INFO L125 PetriNetUnfolderBase]: For 12678/12684 co-relation queries the response was YES. [2023-08-25 18:15:46,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8927 conditions, 1585 events. 595/1585 cut-off events. For 12678/12684 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 9627 event pairs, 198 based on Foata normal form. 0/1563 useless extension candidates. Maximal degree in co-relation 8879. Up to 1394 conditions per place. [2023-08-25 18:15:46,202 INFO L140 encePairwiseOnDemand]: 229/240 looper letters, 138 selfloop transitions, 48 changer transitions 113/304 dead transitions. [2023-08-25 18:15:46,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 304 transitions, 4754 flow [2023-08-25 18:15:46,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 18:15:46,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 18:15:46,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 623 transitions. [2023-08-25 18:15:46,204 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4326388888888889 [2023-08-25 18:15:46,204 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 623 transitions. [2023-08-25 18:15:46,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 623 transitions. [2023-08-25 18:15:46,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:15:46,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 623 transitions. [2023-08-25 18:15:46,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 103.83333333333333) internal successors, (623), 6 states have internal predecessors, (623), 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 18:15:46,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 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 18:15:46,208 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 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 18:15:46,208 INFO L175 Difference]: Start difference. First operand has 128 places, 223 transitions, 2999 flow. Second operand 6 states and 623 transitions. [2023-08-25 18:15:46,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 304 transitions, 4754 flow [2023-08-25 18:15:46,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 304 transitions, 4532 flow, removed 54 selfloop flow, removed 5 redundant places. [2023-08-25 18:15:46,260 INFO L231 Difference]: Finished difference. Result has 133 places, 191 transitions, 2332 flow [2023-08-25 18:15:46,260 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=2856, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2332, PETRI_PLACES=133, PETRI_TRANSITIONS=191} [2023-08-25 18:15:46,261 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 75 predicate places. [2023-08-25 18:15:46,261 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 191 transitions, 2332 flow [2023-08-25 18:15:46,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 96.66666666666667) internal successors, (580), 6 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:15:46,261 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:15:46,261 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 18:15:46,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 18:15:46,262 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (and 9 more)] === [2023-08-25 18:15:46,262 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:15:46,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1335794140, now seen corresponding path program 1 times [2023-08-25 18:15:46,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:15:46,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083061969] [2023-08-25 18:15:46,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:15:46,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:15:46,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:15:46,633 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 18:15:46,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:15:46,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083061969] [2023-08-25 18:15:46,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083061969] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:15:46,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:15:46,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 18:15:46,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505560813] [2023-08-25 18:15:46,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:15:46,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 18:15:46,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:15:46,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 18:15:46,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-08-25 18:15:46,636 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 240 [2023-08-25 18:15:46,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 191 transitions, 2332 flow. Second operand has 10 states, 10 states have (on average 75.8) internal successors, (758), 10 states have internal predecessors, (758), 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 18:15:46,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:15:46,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 240 [2023-08-25 18:15:46,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:15:47,011 INFO L124 PetriNetUnfolderBase]: 190/765 cut-off events. [2023-08-25 18:15:47,011 INFO L125 PetriNetUnfolderBase]: For 5380/5435 co-relation queries the response was YES. [2023-08-25 18:15:47,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4050 conditions, 765 events. 190/765 cut-off events. For 5380/5435 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4559 event pairs, 5 based on Foata normal form. 11/773 useless extension candidates. Maximal degree in co-relation 4000. Up to 225 conditions per place. [2023-08-25 18:15:47,017 INFO L140 encePairwiseOnDemand]: 226/240 looper letters, 85 selfloop transitions, 17 changer transitions 12/205 dead transitions. [2023-08-25 18:15:47,017 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 205 transitions, 2589 flow [2023-08-25 18:15:47,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-25 18:15:47,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-25 18:15:47,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1138 transitions. [2023-08-25 18:15:47,020 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3161111111111111 [2023-08-25 18:15:47,021 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1138 transitions. [2023-08-25 18:15:47,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1138 transitions. [2023-08-25 18:15:47,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:15:47,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1138 transitions. [2023-08-25 18:15:47,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 75.86666666666666) internal successors, (1138), 15 states have internal predecessors, (1138), 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 18:15:47,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 240.0) internal successors, (3840), 16 states have internal predecessors, (3840), 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 18:15:47,028 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 240.0) internal successors, (3840), 16 states have internal predecessors, (3840), 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 18:15:47,028 INFO L175 Difference]: Start difference. First operand has 133 places, 191 transitions, 2332 flow. Second operand 15 states and 1138 transitions. [2023-08-25 18:15:47,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 205 transitions, 2589 flow [2023-08-25 18:15:47,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 205 transitions, 2232 flow, removed 82 selfloop flow, removed 8 redundant places. [2023-08-25 18:15:47,055 INFO L231 Difference]: Finished difference. Result has 136 places, 185 transitions, 1980 flow [2023-08-25 18:15:47,056 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=1971, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1980, PETRI_PLACES=136, PETRI_TRANSITIONS=185} [2023-08-25 18:15:47,056 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 78 predicate places. [2023-08-25 18:15:47,056 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 185 transitions, 1980 flow [2023-08-25 18:15:47,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 75.8) internal successors, (758), 10 states have internal predecessors, (758), 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 18:15:47,057 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:15:47,057 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 18:15:47,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 18:15:47,057 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (and 9 more)] === [2023-08-25 18:15:47,057 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:15:47,057 INFO L85 PathProgramCache]: Analyzing trace with hash -47180046, now seen corresponding path program 1 times [2023-08-25 18:15:47,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:15:47,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211503755] [2023-08-25 18:15:47,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:15:47,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:15:47,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:15:47,432 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 18:15:47,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:15:47,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211503755] [2023-08-25 18:15:47,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211503755] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:15:47,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:15:47,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 18:15:47,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133003272] [2023-08-25 18:15:47,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:15:47,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 18:15:47,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:15:47,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 18:15:47,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-25 18:15:47,434 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 240 [2023-08-25 18:15:47,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 185 transitions, 1980 flow. Second operand has 11 states, 11 states have (on average 83.54545454545455) internal successors, (919), 11 states have internal predecessors, (919), 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 18:15:47,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:15:47,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 240 [2023-08-25 18:15:47,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:15:47,749 INFO L124 PetriNetUnfolderBase]: 362/958 cut-off events. [2023-08-25 18:15:47,749 INFO L125 PetriNetUnfolderBase]: For 7139/7139 co-relation queries the response was YES. [2023-08-25 18:15:47,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5147 conditions, 958 events. 362/958 cut-off events. For 7139/7139 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 4904 event pairs, 129 based on Foata normal form. 22/980 useless extension candidates. Maximal degree in co-relation 5100. Up to 705 conditions per place. [2023-08-25 18:15:47,754 INFO L140 encePairwiseOnDemand]: 232/240 looper letters, 0 selfloop transitions, 0 changer transitions 243/243 dead transitions. [2023-08-25 18:15:47,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 243 transitions, 3190 flow [2023-08-25 18:15:47,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 18:15:47,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 18:15:47,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 791 transitions. [2023-08-25 18:15:47,756 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3662037037037037 [2023-08-25 18:15:47,756 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 791 transitions. [2023-08-25 18:15:47,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 791 transitions. [2023-08-25 18:15:47,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:15:47,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 791 transitions. [2023-08-25 18:15:47,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 87.88888888888889) internal successors, (791), 9 states have internal predecessors, (791), 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 18:15:47,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 240.0) internal successors, (2400), 10 states have internal predecessors, (2400), 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 18:15:47,761 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 240.0) internal successors, (2400), 10 states have internal predecessors, (2400), 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 18:15:47,761 INFO L175 Difference]: Start difference. First operand has 136 places, 185 transitions, 1980 flow. Second operand 9 states and 791 transitions. [2023-08-25 18:15:47,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 243 transitions, 3190 flow [2023-08-25 18:15:47,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 243 transitions, 2975 flow, removed 15 selfloop flow, removed 19 redundant places. [2023-08-25 18:15:47,787 INFO L231 Difference]: Finished difference. Result has 119 places, 0 transitions, 0 flow [2023-08-25 18:15:47,787 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=1823, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=119, PETRI_TRANSITIONS=0} [2023-08-25 18:15:47,788 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 61 predicate places. [2023-08-25 18:15:47,788 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 0 transitions, 0 flow [2023-08-25 18:15:47,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 83.54545454545455) internal successors, (919), 11 states have internal predecessors, (919), 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 18:15:47,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2023-08-25 18:15:47,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2023-08-25 18:15:47,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (9 of 12 remaining) [2023-08-25 18:15:47,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 12 remaining) [2023-08-25 18:15:47,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2023-08-25 18:15:47,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2023-08-25 18:15:47,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2023-08-25 18:15:47,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2023-08-25 18:15:47,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2023-08-25 18:15:47,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2023-08-25 18:15:47,792 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2023-08-25 18:15:47,792 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2023-08-25 18:15:47,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-25 18:15:47,792 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 18:15:47,796 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 18:15:47,796 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 18:15:47,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 06:15:47 BasicIcfg [2023-08-25 18:15:47,799 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 18:15:47,799 INFO L158 Benchmark]: Toolchain (without parser) took 17841.72ms. Allocated memory was 379.6MB in the beginning and 549.5MB in the end (delta: 169.9MB). Free memory was 333.7MB in the beginning and 280.9MB in the end (delta: 52.8MB). Peak memory consumption was 223.7MB. Max. memory is 16.0GB. [2023-08-25 18:15:47,800 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 379.6MB. Free memory was 357.6MB in the beginning and 357.5MB in the end (delta: 86.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 18:15:47,800 INFO L158 Benchmark]: CACSL2BoogieTranslator took 514.56ms. Allocated memory is still 379.6MB. Free memory was 333.7MB in the beginning and 313.7MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 18:15:47,800 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.02ms. Allocated memory is still 379.6MB. Free memory was 313.7MB in the beginning and 310.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-25 18:15:47,800 INFO L158 Benchmark]: Boogie Preprocessor took 52.90ms. Allocated memory is still 379.6MB. Free memory was 310.6MB in the beginning and 308.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 18:15:47,800 INFO L158 Benchmark]: RCFGBuilder took 442.42ms. Allocated memory is still 379.6MB. Free memory was 308.5MB in the beginning and 288.6MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 18:15:47,801 INFO L158 Benchmark]: TraceAbstraction took 16771.19ms. Allocated memory was 379.6MB in the beginning and 549.5MB in the end (delta: 169.9MB). Free memory was 287.5MB in the beginning and 280.9MB in the end (delta: 6.6MB). Peak memory consumption was 177.5MB. Max. memory is 16.0GB. [2023-08-25 18:15:47,802 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 379.6MB. Free memory was 357.6MB in the beginning and 357.5MB in the end (delta: 86.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 514.56ms. Allocated memory is still 379.6MB. Free memory was 333.7MB in the beginning and 313.7MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 55.02ms. Allocated memory is still 379.6MB. Free memory was 313.7MB in the beginning and 310.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 52.90ms. Allocated memory is still 379.6MB. Free memory was 310.6MB in the beginning and 308.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 442.42ms. Allocated memory is still 379.6MB. Free memory was 308.5MB in the beginning and 288.6MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 16771.19ms. Allocated memory was 379.6MB in the beginning and 549.5MB in the end (delta: 169.9MB). Free memory was 287.5MB in the beginning and 280.9MB in the end (delta: 6.6MB). Peak memory consumption was 177.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.6s, 132 PlacesBefore, 58 PlacesAfterwards, 138 TransitionsBefore, 62 TransitionsAfterwards, 4636 CoEnabledTransitionPairs, 7 FixpointIterations, 37 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 92 TotalNumberOfCompositions, 24858 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5224, independent: 4502, independent conditional: 0, independent unconditional: 4502, dependent: 722, dependent conditional: 0, dependent unconditional: 722, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2161, independent: 2061, independent conditional: 0, independent unconditional: 2061, dependent: 100, dependent conditional: 0, dependent unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5224, independent: 2441, independent conditional: 0, independent unconditional: 2441, dependent: 622, dependent conditional: 0, dependent unconditional: 622, unknown: 2161, unknown conditional: 0, unknown unconditional: 2161] , Statistics on independence cache: Total cache size (in pairs): 341, Positive cache size: 274, Positive conditional cache size: 0, Positive unconditional cache size: 274, Negative cache size: 67, Negative conditional cache size: 0, Negative unconditional cache size: 67, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 713]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 690]: assertion always holds For all program executions holds that assertion always holds 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: 702]: 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: 702]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 196 locations, 12 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 16.7s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1416 SdHoareTripleChecker+Valid, 4.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1416 mSDsluCounter, 209 SdHoareTripleChecker+Invalid, 3.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 601 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5836 IncrementalHoareTripleChecker+Invalid, 6437 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 601 mSolverCounterUnsat, 178 mSDtfsCounter, 5836 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 172 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2999occurred in iteration=12, InterpolantAutomatonStates: 121, 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, 4.3s InterpolantComputationTime, 360 NumberOfCodeBlocks, 360 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 345 ConstructedInterpolants, 0 QuantifiedInterpolants, 3702 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 18:15:47,816 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...