./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-deagle/reorder_c11_bad-30.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-deagle/reorder_c11_bad-30.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8d7df89eaaa05ee1c4077455abbd501c07d86257ca2c037ce71ae27b3838effb --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 06:01:29,786 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 06:01:29,857 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-19 06:01:29,862 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 06:01:29,862 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 06:01:29,891 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 06:01:29,892 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 06:01:29,892 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 06:01:29,893 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 06:01:29,893 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 06:01:29,894 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 06:01:29,894 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 06:01:29,895 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 06:01:29,895 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 06:01:29,895 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 06:01:29,896 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 06:01:29,897 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 06:01:29,898 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 06:01:29,898 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 06:01:29,899 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 06:01:29,899 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 06:01:29,900 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 06:01:29,900 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-19 06:01:29,900 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 06:01:29,901 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 06:01:29,901 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 06:01:29,901 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 06:01:29,902 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 06:01:29,902 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 06:01:29,902 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 06:01:29,902 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 06:01:29,903 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 06:01:29,903 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 06:01:29,903 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 06:01:29,904 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 06:01:29,904 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 06:01:29,904 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 06:01:29,904 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 06:01:29,905 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 06:01:29,905 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 06:01:29,905 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 06:01:29,906 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d7df89eaaa05ee1c4077455abbd501c07d86257ca2c037ce71ae27b3838effb [2024-11-19 06:01:30,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 06:01:30,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 06:01:30,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 06:01:30,202 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 06:01:30,202 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 06:01:30,204 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-deagle/reorder_c11_bad-30.i [2024-11-19 06:01:31,733 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 06:01:31,986 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 06:01:31,987 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/reorder_c11_bad-30.i [2024-11-19 06:01:31,999 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed66c5813/af10780084644913b63ce61fc896e462/FLAGe3c1e3d6f [2024-11-19 06:01:32,296 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed66c5813/af10780084644913b63ce61fc896e462 [2024-11-19 06:01:32,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 06:01:32,302 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 06:01:32,303 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 06:01:32,303 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 06:01:32,311 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 06:01:32,312 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:01:32" (1/1) ... [2024-11-19 06:01:32,313 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e7ca4da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:01:32, skipping insertion in model container [2024-11-19 06:01:32,313 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:01:32" (1/1) ... [2024-11-19 06:01:32,355 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 06:01:32,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 06:01:32,779 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 06:01:32,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 06:01:32,866 INFO L204 MainTranslator]: Completed translation [2024-11-19 06:01:32,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:01:32 WrapperNode [2024-11-19 06:01:32,867 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 06:01:32,868 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 06:01:32,868 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 06:01:32,869 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 06:01:32,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:01:32" (1/1) ... [2024-11-19 06:01:32,897 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:01:32" (1/1) ... [2024-11-19 06:01:32,930 INFO L138 Inliner]: procedures = 163, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 173 [2024-11-19 06:01:32,932 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 06:01:32,932 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 06:01:32,933 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 06:01:32,933 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 06:01:32,942 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:01:32" (1/1) ... [2024-11-19 06:01:32,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:01:32" (1/1) ... [2024-11-19 06:01:32,951 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:01:32" (1/1) ... [2024-11-19 06:01:32,951 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:01:32" (1/1) ... [2024-11-19 06:01:32,968 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:01:32" (1/1) ... [2024-11-19 06:01:32,971 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:01:32" (1/1) ... [2024-11-19 06:01:32,973 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:01:32" (1/1) ... [2024-11-19 06:01:32,975 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:01:32" (1/1) ... [2024-11-19 06:01:32,977 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 06:01:32,979 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 06:01:32,982 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 06:01:32,982 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 06:01:32,983 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:01:32" (1/1) ... [2024-11-19 06:01:32,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 06:01:33,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:01:33,020 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 06:01:33,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 06:01:33,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-19 06:01:33,070 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2024-11-19 06:01:33,070 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2024-11-19 06:01:33,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-19 06:01:33,070 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 06:01:33,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 06:01:33,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 06:01:33,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 06:01:33,071 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2024-11-19 06:01:33,071 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2024-11-19 06:01:33,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 06:01:33,071 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 06:01:33,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 06:01:33,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 06:01:33,074 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 06:01:33,213 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 06:01:33,215 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 06:01:33,618 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 06:01:33,618 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 06:01:33,662 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 06:01:33,663 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-19 06:01:33,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:01:33 BoogieIcfgContainer [2024-11-19 06:01:33,664 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 06:01:33,667 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 06:01:33,668 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 06:01:33,671 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 06:01:33,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:01:32" (1/3) ... [2024-11-19 06:01:33,673 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@251d386b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:01:33, skipping insertion in model container [2024-11-19 06:01:33,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:01:32" (2/3) ... [2024-11-19 06:01:33,674 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@251d386b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:01:33, skipping insertion in model container [2024-11-19 06:01:33,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:01:33" (3/3) ... [2024-11-19 06:01:33,676 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_c11_bad-30.i [2024-11-19 06:01:33,695 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 06:01:33,695 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2024-11-19 06:01:33,697 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 06:01:33,821 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-19 06:01:33,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 210 places, 218 transitions, 456 flow [2024-11-19 06:01:34,051 INFO L124 PetriNetUnfolderBase]: 32/558 cut-off events. [2024-11-19 06:01:34,051 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-19 06:01:34,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 575 conditions, 558 events. 32/558 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2237 event pairs, 0 based on Foata normal form. 0/439 useless extension candidates. Maximal degree in co-relation 267. Up to 8 conditions per place. [2024-11-19 06:01:34,064 INFO L82 GeneralOperation]: Start removeDead. Operand has 210 places, 218 transitions, 456 flow [2024-11-19 06:01:34,075 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 210 places, 218 transitions, 456 flow [2024-11-19 06:01:34,086 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:01:34,093 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@16b6b2a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:01:34,094 INFO L334 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2024-11-19 06:01:34,098 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:01:34,099 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-11-19 06:01:34,099 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:01:34,100 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:01:34,101 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:01:34,101 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-19 06:01:34,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:01:34,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1315286322, now seen corresponding path program 1 times [2024-11-19 06:01:34,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:01:34,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634449255] [2024-11-19 06:01:34,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:01:34,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:01:34,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:01:34,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:01:34,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:01:34,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634449255] [2024-11-19 06:01:34,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634449255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:01:34,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:01:34,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:01:34,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477408150] [2024-11-19 06:01:34,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:01:34,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:01:34,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:01:34,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:01:34,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:01:34,591 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 218 [2024-11-19 06:01:34,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 218 transitions, 456 flow. Second operand has 3 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 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) [2024-11-19 06:01:34,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:01:34,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 218 [2024-11-19 06:01:34,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:01:34,814 INFO L124 PetriNetUnfolderBase]: 85/994 cut-off events. [2024-11-19 06:01:34,815 INFO L125 PetriNetUnfolderBase]: For 43/45 co-relation queries the response was YES. [2024-11-19 06:01:34,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1228 conditions, 994 events. 85/994 cut-off events. For 43/45 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 5519 event pairs, 64 based on Foata normal form. 82/892 useless extension candidates. Maximal degree in co-relation 886. Up to 207 conditions per place. [2024-11-19 06:01:34,829 INFO L140 encePairwiseOnDemand]: 207/218 looper letters, 31 selfloop transitions, 2 changer transitions 0/207 dead transitions. [2024-11-19 06:01:34,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 207 transitions, 500 flow [2024-11-19 06:01:34,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:01:34,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:01:34,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 567 transitions. [2024-11-19 06:01:34,846 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8669724770642202 [2024-11-19 06:01:34,849 INFO L175 Difference]: Start difference. First operand has 210 places, 218 transitions, 456 flow. Second operand 3 states and 567 transitions. [2024-11-19 06:01:34,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 207 transitions, 500 flow [2024-11-19 06:01:34,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 207 transitions, 500 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 06:01:34,861 INFO L231 Difference]: Finished difference. Result has 207 places, 207 transitions, 438 flow [2024-11-19 06:01:34,863 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=438, PETRI_PLACES=207, PETRI_TRANSITIONS=207} [2024-11-19 06:01:34,869 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -3 predicate places. [2024-11-19 06:01:34,870 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 207 transitions, 438 flow [2024-11-19 06:01:34,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 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) [2024-11-19 06:01:34,870 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:01:34,871 INFO L204 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] [2024-11-19 06:01:34,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 06:01:34,871 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-19 06:01:34,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:01:34,872 INFO L85 PathProgramCache]: Analyzing trace with hash -707742264, now seen corresponding path program 1 times [2024-11-19 06:01:34,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:01:34,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221128009] [2024-11-19 06:01:34,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:01:34,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:01:34,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:01:34,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:01:34,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:01:34,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221128009] [2024-11-19 06:01:34,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221128009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:01:34,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:01:34,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:01:34,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029417827] [2024-11-19 06:01:34,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:01:34,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:01:34,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:01:34,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:01:34,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:01:35,109 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 218 [2024-11-19 06:01:35,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 207 transitions, 438 flow. Second operand has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 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) [2024-11-19 06:01:35,111 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:01:35,111 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 218 [2024-11-19 06:01:35,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:01:35,263 INFO L124 PetriNetUnfolderBase]: 117/1005 cut-off events. [2024-11-19 06:01:35,264 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2024-11-19 06:01:35,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1333 conditions, 1005 events. 117/1005 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5494 event pairs, 78 based on Foata normal form. 0/884 useless extension candidates. Maximal degree in co-relation 1304. Up to 243 conditions per place. [2024-11-19 06:01:35,273 INFO L140 encePairwiseOnDemand]: 195/218 looper letters, 31 selfloop transitions, 11 changer transitions 0/197 dead transitions. [2024-11-19 06:01:35,273 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 197 transitions, 502 flow [2024-11-19 06:01:35,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:01:35,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:01:35,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 525 transitions. [2024-11-19 06:01:35,279 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8027522935779816 [2024-11-19 06:01:35,280 INFO L175 Difference]: Start difference. First operand has 207 places, 207 transitions, 438 flow. Second operand 3 states and 525 transitions. [2024-11-19 06:01:35,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 197 transitions, 502 flow [2024-11-19 06:01:35,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 197 transitions, 498 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:01:35,286 INFO L231 Difference]: Finished difference. Result has 195 places, 195 transitions, 432 flow [2024-11-19 06:01:35,289 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=432, PETRI_PLACES=195, PETRI_TRANSITIONS=195} [2024-11-19 06:01:35,290 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -15 predicate places. [2024-11-19 06:01:35,290 INFO L471 AbstractCegarLoop]: Abstraction has has 195 places, 195 transitions, 432 flow [2024-11-19 06:01:35,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 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) [2024-11-19 06:01:35,291 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:01:35,291 INFO L204 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] [2024-11-19 06:01:35,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 06:01:35,291 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-19 06:01:35,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:01:35,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1773346952, now seen corresponding path program 1 times [2024-11-19 06:01:35,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:01:35,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386396791] [2024-11-19 06:01:35,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:01:35,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:01:35,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:01:35,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:01:35,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:01:35,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386396791] [2024-11-19 06:01:35,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386396791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:01:35,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:01:35,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 06:01:35,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012269281] [2024-11-19 06:01:35,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:01:35,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:01:35,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:01:35,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:01:35,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:01:35,526 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 218 [2024-11-19 06:01:35,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 195 transitions, 432 flow. Second operand has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 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) [2024-11-19 06:01:35,528 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:01:35,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 218 [2024-11-19 06:01:35,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:01:35,621 INFO L124 PetriNetUnfolderBase]: 27/511 cut-off events. [2024-11-19 06:01:35,621 INFO L125 PetriNetUnfolderBase]: For 28/32 co-relation queries the response was YES. [2024-11-19 06:01:35,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 640 conditions, 511 events. 27/511 cut-off events. For 28/32 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1590 event pairs, 10 based on Foata normal form. 6/465 useless extension candidates. Maximal degree in co-relation 443. Up to 39 conditions per place. [2024-11-19 06:01:35,627 INFO L140 encePairwiseOnDemand]: 206/218 looper letters, 17 selfloop transitions, 8 changer transitions 9/200 dead transitions. [2024-11-19 06:01:35,628 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 200 transitions, 500 flow [2024-11-19 06:01:35,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:01:35,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:01:35,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 594 transitions. [2024-11-19 06:01:35,630 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.908256880733945 [2024-11-19 06:01:35,631 INFO L175 Difference]: Start difference. First operand has 195 places, 195 transitions, 432 flow. Second operand 3 states and 594 transitions. [2024-11-19 06:01:35,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 200 transitions, 500 flow [2024-11-19 06:01:35,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 200 transitions, 478 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:01:35,638 INFO L231 Difference]: Finished difference. Result has 196 places, 187 transitions, 426 flow [2024-11-19 06:01:35,638 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=426, PETRI_PLACES=196, PETRI_TRANSITIONS=187} [2024-11-19 06:01:35,640 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -14 predicate places. [2024-11-19 06:01:35,641 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 187 transitions, 426 flow [2024-11-19 06:01:35,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 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) [2024-11-19 06:01:35,641 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:01:35,642 INFO L204 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] [2024-11-19 06:01:35,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 06:01:35,643 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-19 06:01:35,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:01:35,644 INFO L85 PathProgramCache]: Analyzing trace with hash 258671552, now seen corresponding path program 1 times [2024-11-19 06:01:35,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:01:35,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568374869] [2024-11-19 06:01:35,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:01:35,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:01:35,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:01:36,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:01:36,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:01:36,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568374869] [2024-11-19 06:01:36,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568374869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:01:36,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:01:36,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:01:36,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486195871] [2024-11-19 06:01:36,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:01:36,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 06:01:36,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:01:36,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 06:01:36,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 06:01:36,431 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 218 [2024-11-19 06:01:36,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 187 transitions, 426 flow. Second operand has 6 states, 6 states have (on average 169.66666666666666) internal successors, (1018), 6 states have internal predecessors, (1018), 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) [2024-11-19 06:01:36,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:01:36,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 218 [2024-11-19 06:01:36,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:01:36,549 INFO L124 PetriNetUnfolderBase]: 83/734 cut-off events. [2024-11-19 06:01:36,550 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-11-19 06:01:36,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1027 conditions, 734 events. 83/734 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2892 event pairs, 5 based on Foata normal form. 0/674 useless extension candidates. Maximal degree in co-relation 815. Up to 193 conditions per place. [2024-11-19 06:01:36,556 INFO L140 encePairwiseOnDemand]: 212/218 looper letters, 42 selfloop transitions, 5 changer transitions 0/194 dead transitions. [2024-11-19 06:01:36,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 194 transitions, 534 flow [2024-11-19 06:01:36,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 06:01:36,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 06:01:36,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1055 transitions. [2024-11-19 06:01:36,560 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8065749235474006 [2024-11-19 06:01:36,560 INFO L175 Difference]: Start difference. First operand has 196 places, 187 transitions, 426 flow. Second operand 6 states and 1055 transitions. [2024-11-19 06:01:36,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 194 transitions, 534 flow [2024-11-19 06:01:36,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 194 transitions, 526 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:01:36,567 INFO L231 Difference]: Finished difference. Result has 190 places, 186 transitions, 426 flow [2024-11-19 06:01:36,568 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=426, PETRI_PLACES=190, PETRI_TRANSITIONS=186} [2024-11-19 06:01:36,569 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -20 predicate places. [2024-11-19 06:01:36,570 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 186 transitions, 426 flow [2024-11-19 06:01:36,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.66666666666666) internal successors, (1018), 6 states have internal predecessors, (1018), 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) [2024-11-19 06:01:36,571 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:01:36,571 INFO L204 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, 1, 1] [2024-11-19 06:01:36,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 06:01:36,571 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-19 06:01:36,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:01:36,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1761069613, now seen corresponding path program 1 times [2024-11-19 06:01:36,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:01:36,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331806062] [2024-11-19 06:01:36,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:01:36,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:01:36,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:01:36,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:01:36,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:01:36,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331806062] [2024-11-19 06:01:36,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331806062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:01:36,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:01:36,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:01:36,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233369421] [2024-11-19 06:01:36,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:01:36,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:01:36,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:01:36,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:01:36,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:01:36,752 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 218 [2024-11-19 06:01:36,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 186 transitions, 426 flow. Second operand has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 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) [2024-11-19 06:01:36,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:01:36,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 218 [2024-11-19 06:01:36,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:01:36,852 INFO L124 PetriNetUnfolderBase]: 63/716 cut-off events. [2024-11-19 06:01:36,852 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-19 06:01:36,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 950 conditions, 716 events. 63/716 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2845 event pairs, 49 based on Foata normal form. 0/650 useless extension candidates. Maximal degree in co-relation 749. Up to 151 conditions per place. [2024-11-19 06:01:36,858 INFO L140 encePairwiseOnDemand]: 215/218 looper letters, 32 selfloop transitions, 2 changer transitions 0/187 dead transitions. [2024-11-19 06:01:36,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 187 transitions, 496 flow [2024-11-19 06:01:36,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:01:36,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:01:36,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 560 transitions. [2024-11-19 06:01:36,860 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8562691131498471 [2024-11-19 06:01:36,861 INFO L175 Difference]: Start difference. First operand has 190 places, 186 transitions, 426 flow. Second operand 3 states and 560 transitions. [2024-11-19 06:01:36,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 187 transitions, 496 flow [2024-11-19 06:01:36,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 187 transitions, 486 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 06:01:36,865 INFO L231 Difference]: Finished difference. Result has 186 places, 185 transitions, 418 flow [2024-11-19 06:01:36,866 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=418, PETRI_PLACES=186, PETRI_TRANSITIONS=185} [2024-11-19 06:01:36,867 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -24 predicate places. [2024-11-19 06:01:36,868 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 185 transitions, 418 flow [2024-11-19 06:01:36,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 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) [2024-11-19 06:01:36,869 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:01:36,869 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:01:36,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 06:01:36,869 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-19 06:01:36,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:01:36,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1996288427, now seen corresponding path program 1 times [2024-11-19 06:01:36,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:01:36,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534575412] [2024-11-19 06:01:36,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:01:36,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:01:36,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:01:36,964 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:01:36,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:01:36,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534575412] [2024-11-19 06:01:36,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534575412] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:01:36,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257390769] [2024-11-19 06:01:36,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:01:36,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:01:36,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:01:36,968 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 06:01:36,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 06:01:37,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:01:37,048 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 06:01:37,052 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:01:37,072 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 06:01:37,073 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 06:01:37,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1257390769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:01:37,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 06:01:37,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-19 06:01:37,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681028076] [2024-11-19 06:01:37,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:01:37,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:01:37,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:01:37,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:01:37,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 06:01:37,157 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 218 [2024-11-19 06:01:37,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 185 transitions, 418 flow. Second operand has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 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) [2024-11-19 06:01:37,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:01:37,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 218 [2024-11-19 06:01:37,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:01:37,263 INFO L124 PetriNetUnfolderBase]: 63/700 cut-off events. [2024-11-19 06:01:37,264 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-19 06:01:37,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 919 conditions, 700 events. 63/700 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2748 event pairs, 49 based on Foata normal form. 0/634 useless extension candidates. Maximal degree in co-relation 723. Up to 151 conditions per place. [2024-11-19 06:01:37,270 INFO L140 encePairwiseOnDemand]: 215/218 looper letters, 32 selfloop transitions, 2 changer transitions 0/186 dead transitions. [2024-11-19 06:01:37,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 186 transitions, 488 flow [2024-11-19 06:01:37,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:01:37,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:01:37,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 560 transitions. [2024-11-19 06:01:37,273 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8562691131498471 [2024-11-19 06:01:37,273 INFO L175 Difference]: Start difference. First operand has 186 places, 185 transitions, 418 flow. Second operand 3 states and 560 transitions. [2024-11-19 06:01:37,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 186 transitions, 488 flow [2024-11-19 06:01:37,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 186 transitions, 484 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:01:37,278 INFO L231 Difference]: Finished difference. Result has 185 places, 184 transitions, 416 flow [2024-11-19 06:01:37,279 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=416, PETRI_PLACES=185, PETRI_TRANSITIONS=184} [2024-11-19 06:01:37,279 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -25 predicate places. [2024-11-19 06:01:37,280 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 184 transitions, 416 flow [2024-11-19 06:01:37,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 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) [2024-11-19 06:01:37,280 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:01:37,281 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-19 06:01:37,301 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 06:01:37,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-19 06:01:37,483 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-19 06:01:37,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:01:37,483 INFO L85 PathProgramCache]: Analyzing trace with hash 95516775, now seen corresponding path program 1 times [2024-11-19 06:01:37,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:01:37,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329180644] [2024-11-19 06:01:37,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:01:37,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:01:37,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:01:37,511 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:01:37,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:01:37,567 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:01:37,567 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:01:37,568 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 38 remaining) [2024-11-19 06:01:37,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2024-11-19 06:01:37,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2024-11-19 06:01:37,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2024-11-19 06:01:37,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2024-11-19 06:01:37,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2024-11-19 06:01:37,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2024-11-19 06:01:37,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2024-11-19 06:01:37,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2024-11-19 06:01:37,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2024-11-19 06:01:37,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2024-11-19 06:01:37,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2024-11-19 06:01:37,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2024-11-19 06:01:37,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2024-11-19 06:01:37,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2024-11-19 06:01:37,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2024-11-19 06:01:37,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2024-11-19 06:01:37,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2024-11-19 06:01:37,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2024-11-19 06:01:37,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2024-11-19 06:01:37,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2024-11-19 06:01:37,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2024-11-19 06:01:37,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2024-11-19 06:01:37,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (14 of 38 remaining) [2024-11-19 06:01:37,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (13 of 38 remaining) [2024-11-19 06:01:37,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2024-11-19 06:01:37,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2024-11-19 06:01:37,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2024-11-19 06:01:37,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2024-11-19 06:01:37,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2024-11-19 06:01:37,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2024-11-19 06:01:37,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 38 remaining) [2024-11-19 06:01:37,577 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2024-11-19 06:01:37,577 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2024-11-19 06:01:37,577 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2024-11-19 06:01:37,580 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2024-11-19 06:01:37,580 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2024-11-19 06:01:37,580 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2024-11-19 06:01:37,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 06:01:37,581 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:01:37,584 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:01:37,584 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-19 06:01:37,632 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-19 06:01:37,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 259 places, 272 transitions, 588 flow [2024-11-19 06:01:37,844 INFO L124 PetriNetUnfolderBase]: 131/1812 cut-off events. [2024-11-19 06:01:37,844 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-11-19 06:01:37,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1901 conditions, 1812 events. 131/1812 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 10481 event pairs, 2 based on Foata normal form. 0/1429 useless extension candidates. Maximal degree in co-relation 1028. Up to 32 conditions per place. [2024-11-19 06:01:37,859 INFO L82 GeneralOperation]: Start removeDead. Operand has 259 places, 272 transitions, 588 flow [2024-11-19 06:01:37,875 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 259 places, 272 transitions, 588 flow [2024-11-19 06:01:37,878 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:01:37,879 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@16b6b2a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:01:37,879 INFO L334 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2024-11-19 06:01:37,893 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:01:37,893 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-11-19 06:01:37,893 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:01:37,894 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:01:37,894 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:01:37,894 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-19 06:01:37,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:01:37,894 INFO L85 PathProgramCache]: Analyzing trace with hash 586871886, now seen corresponding path program 1 times [2024-11-19 06:01:37,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:01:37,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260022028] [2024-11-19 06:01:37,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:01:37,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:01:37,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:01:37,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:01:37,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:01:37,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260022028] [2024-11-19 06:01:37,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260022028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:01:37,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:01:37,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:01:37,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706786173] [2024-11-19 06:01:37,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:01:37,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:01:37,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:01:37,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:01:37,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:01:38,026 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 272 [2024-11-19 06:01:38,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 272 transitions, 588 flow. Second operand has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 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) [2024-11-19 06:01:38,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:01:38,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 272 [2024-11-19 06:01:38,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:01:39,317 INFO L124 PetriNetUnfolderBase]: 1200/7025 cut-off events. [2024-11-19 06:01:39,318 INFO L125 PetriNetUnfolderBase]: For 678/712 co-relation queries the response was YES. [2024-11-19 06:01:39,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9370 conditions, 7025 events. 1200/7025 cut-off events. For 678/712 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 62105 event pairs, 985 based on Foata normal form. 1614/7418 useless extension candidates. Maximal degree in co-relation 4757. Up to 2070 conditions per place. [2024-11-19 06:01:39,412 INFO L140 encePairwiseOnDemand]: 257/272 looper letters, 39 selfloop transitions, 2 changer transitions 0/255 dead transitions. [2024-11-19 06:01:39,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 255 transitions, 636 flow [2024-11-19 06:01:39,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:01:39,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:01:39,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 702 transitions. [2024-11-19 06:01:39,415 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8602941176470589 [2024-11-19 06:01:39,415 INFO L175 Difference]: Start difference. First operand has 259 places, 272 transitions, 588 flow. Second operand 3 states and 702 transitions. [2024-11-19 06:01:39,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 255 transitions, 636 flow [2024-11-19 06:01:39,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 255 transitions, 636 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 06:01:39,421 INFO L231 Difference]: Finished difference. Result has 252 places, 255 transitions, 558 flow [2024-11-19 06:01:39,421 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=554, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=558, PETRI_PLACES=252, PETRI_TRANSITIONS=255} [2024-11-19 06:01:39,422 INFO L277 CegarLoopForPetriNet]: 259 programPoint places, -7 predicate places. [2024-11-19 06:01:39,422 INFO L471 AbstractCegarLoop]: Abstraction has has 252 places, 255 transitions, 558 flow [2024-11-19 06:01:39,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 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) [2024-11-19 06:01:39,423 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:01:39,423 INFO L204 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] [2024-11-19 06:01:39,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 06:01:39,424 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-19 06:01:39,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:01:39,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1310803050, now seen corresponding path program 1 times [2024-11-19 06:01:39,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:01:39,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093175676] [2024-11-19 06:01:39,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:01:39,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:01:39,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:01:39,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:01:39,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:01:39,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093175676] [2024-11-19 06:01:39,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093175676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:01:39,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:01:39,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:01:39,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708074741] [2024-11-19 06:01:39,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:01:39,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:01:39,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:01:39,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:01:39,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:01:39,526 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 272 [2024-11-19 06:01:39,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 255 transitions, 558 flow. Second operand has 3 states, 3 states have (on average 199.0) internal successors, (597), 3 states have internal predecessors, (597), 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) [2024-11-19 06:01:39,527 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:01:39,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 272 [2024-11-19 06:01:39,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:01:40,839 INFO L124 PetriNetUnfolderBase]: 1650/7399 cut-off events. [2024-11-19 06:01:40,839 INFO L125 PetriNetUnfolderBase]: For 653/671 co-relation queries the response was YES. [2024-11-19 06:01:40,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10619 conditions, 7399 events. 1650/7399 cut-off events. For 653/671 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 62410 event pairs, 1169 based on Foata normal form. 0/6613 useless extension candidates. Maximal degree in co-relation 10588. Up to 2412 conditions per place. [2024-11-19 06:01:41,065 INFO L140 encePairwiseOnDemand]: 249/272 looper letters, 41 selfloop transitions, 11 changer transitions 0/247 dead transitions. [2024-11-19 06:01:41,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 247 transitions, 646 flow [2024-11-19 06:01:41,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:01:41,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:01:41,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 658 transitions. [2024-11-19 06:01:41,068 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8063725490196079 [2024-11-19 06:01:41,068 INFO L175 Difference]: Start difference. First operand has 252 places, 255 transitions, 558 flow. Second operand 3 states and 658 transitions. [2024-11-19 06:01:41,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 247 transitions, 646 flow [2024-11-19 06:01:41,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 247 transitions, 642 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:01:41,075 INFO L231 Difference]: Finished difference. Result has 240 places, 243 transitions, 552 flow [2024-11-19 06:01:41,076 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=552, PETRI_PLACES=240, PETRI_TRANSITIONS=243} [2024-11-19 06:01:41,078 INFO L277 CegarLoopForPetriNet]: 259 programPoint places, -19 predicate places. [2024-11-19 06:01:41,078 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 243 transitions, 552 flow [2024-11-19 06:01:41,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 199.0) internal successors, (597), 3 states have internal predecessors, (597), 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) [2024-11-19 06:01:41,079 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:01:41,079 INFO L204 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] [2024-11-19 06:01:41,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 06:01:41,079 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-19 06:01:41,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:01:41,080 INFO L85 PathProgramCache]: Analyzing trace with hash 169601016, now seen corresponding path program 1 times [2024-11-19 06:01:41,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:01:41,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170496334] [2024-11-19 06:01:41,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:01:41,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:01:41,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:01:41,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:01:41,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:01:41,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170496334] [2024-11-19 06:01:41,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170496334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:01:41,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:01:41,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 06:01:41,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158660732] [2024-11-19 06:01:41,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:01:41,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:01:41,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:01:41,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:01:41,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:01:41,206 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 272 [2024-11-19 06:01:41,207 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 243 transitions, 552 flow. Second operand has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 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) [2024-11-19 06:01:41,207 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:01:41,207 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 272 [2024-11-19 06:01:41,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:01:41,953 INFO L124 PetriNetUnfolderBase]: 630/4819 cut-off events. [2024-11-19 06:01:41,953 INFO L125 PetriNetUnfolderBase]: For 775/817 co-relation queries the response was YES. [2024-11-19 06:01:41,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6501 conditions, 4819 events. 630/4819 cut-off events. For 775/817 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 40420 event pairs, 228 based on Foata normal form. 42/4348 useless extension candidates. Maximal degree in co-relation 4159. Up to 682 conditions per place. [2024-11-19 06:01:42,009 INFO L140 encePairwiseOnDemand]: 260/272 looper letters, 37 selfloop transitions, 8 changer transitions 0/259 dead transitions. [2024-11-19 06:01:42,009 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 259 transitions, 698 flow [2024-11-19 06:01:42,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:01:42,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:01:42,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 736 transitions. [2024-11-19 06:01:42,012 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9019607843137255 [2024-11-19 06:01:42,012 INFO L175 Difference]: Start difference. First operand has 240 places, 243 transitions, 552 flow. Second operand 3 states and 736 transitions. [2024-11-19 06:01:42,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 259 transitions, 698 flow [2024-11-19 06:01:42,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 259 transitions, 676 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:01:42,077 INFO L231 Difference]: Finished difference. Result has 241 places, 247 transitions, 578 flow [2024-11-19 06:01:42,077 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=578, PETRI_PLACES=241, PETRI_TRANSITIONS=247} [2024-11-19 06:01:42,078 INFO L277 CegarLoopForPetriNet]: 259 programPoint places, -18 predicate places. [2024-11-19 06:01:42,078 INFO L471 AbstractCegarLoop]: Abstraction has has 241 places, 247 transitions, 578 flow [2024-11-19 06:01:42,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 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) [2024-11-19 06:01:42,079 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:01:42,079 INFO L204 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] [2024-11-19 06:01:42,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 06:01:42,079 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-19 06:01:42,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:01:42,080 INFO L85 PathProgramCache]: Analyzing trace with hash 631504654, now seen corresponding path program 1 times [2024-11-19 06:01:42,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:01:42,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567212566] [2024-11-19 06:01:42,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:01:42,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:01:42,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:01:42,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:01:42,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:01:42,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567212566] [2024-11-19 06:01:42,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567212566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:01:42,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:01:42,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:01:42,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146793535] [2024-11-19 06:01:42,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:01:42,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 06:01:42,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:01:42,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 06:01:42,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 06:01:42,657 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 272 [2024-11-19 06:01:42,660 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 247 transitions, 578 flow. Second operand has 6 states, 6 states have (on average 210.66666666666666) internal successors, (1264), 6 states have internal predecessors, (1264), 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) [2024-11-19 06:01:42,660 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:01:42,660 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 272 [2024-11-19 06:01:42,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:01:44,018 INFO L124 PetriNetUnfolderBase]: 1558/7502 cut-off events. [2024-11-19 06:01:44,018 INFO L125 PetriNetUnfolderBase]: For 740/740 co-relation queries the response was YES. [2024-11-19 06:01:44,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11144 conditions, 7502 events. 1558/7502 cut-off events. For 740/740 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 63246 event pairs, 74 based on Foata normal form. 0/6971 useless extension candidates. Maximal degree in co-relation 5065. Up to 2728 conditions per place. [2024-11-19 06:01:44,083 INFO L140 encePairwiseOnDemand]: 266/272 looper letters, 62 selfloop transitions, 6 changer transitions 0/262 dead transitions. [2024-11-19 06:01:44,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 262 transitions, 744 flow [2024-11-19 06:01:44,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 06:01:44,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 06:01:44,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1319 transitions. [2024-11-19 06:01:44,087 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8082107843137255 [2024-11-19 06:01:44,087 INFO L175 Difference]: Start difference. First operand has 241 places, 247 transitions, 578 flow. Second operand 6 states and 1319 transitions. [2024-11-19 06:01:44,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 262 transitions, 744 flow [2024-11-19 06:01:44,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 262 transitions, 736 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:01:44,093 INFO L231 Difference]: Finished difference. Result has 244 places, 246 transitions, 580 flow [2024-11-19 06:01:44,094 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=580, PETRI_PLACES=244, PETRI_TRANSITIONS=246} [2024-11-19 06:01:44,094 INFO L277 CegarLoopForPetriNet]: 259 programPoint places, -15 predicate places. [2024-11-19 06:01:44,095 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 246 transitions, 580 flow [2024-11-19 06:01:44,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 210.66666666666666) internal successors, (1264), 6 states have internal predecessors, (1264), 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) [2024-11-19 06:01:44,096 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:01:44,096 INFO L204 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, 1, 1] [2024-11-19 06:01:44,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 06:01:44,096 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-19 06:01:44,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:01:44,097 INFO L85 PathProgramCache]: Analyzing trace with hash 627119402, now seen corresponding path program 1 times [2024-11-19 06:01:44,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:01:44,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286033322] [2024-11-19 06:01:44,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:01:44,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:01:44,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:01:44,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:01:44,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:01:44,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286033322] [2024-11-19 06:01:44,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286033322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:01:44,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:01:44,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:01:44,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255389468] [2024-11-19 06:01:44,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:01:44,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:01:44,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:01:44,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:01:44,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:01:44,233 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 272 [2024-11-19 06:01:44,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 246 transitions, 580 flow. Second operand has 3 states, 3 states have (on average 219.0) internal successors, (657), 3 states have internal predecessors, (657), 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) [2024-11-19 06:01:44,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:01:44,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 272 [2024-11-19 06:01:44,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:01:45,228 INFO L124 PetriNetUnfolderBase]: 1177/6971 cut-off events. [2024-11-19 06:01:45,228 INFO L125 PetriNetUnfolderBase]: For 750/750 co-relation queries the response was YES. [2024-11-19 06:01:45,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9778 conditions, 6971 events. 1177/6971 cut-off events. For 750/750 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 60429 event pairs, 990 based on Foata normal form. 0/6384 useless extension candidates. Maximal degree in co-relation 4376. Up to 2049 conditions per place. [2024-11-19 06:01:45,319 INFO L140 encePairwiseOnDemand]: 269/272 looper letters, 43 selfloop transitions, 2 changer transitions 0/249 dead transitions. [2024-11-19 06:01:45,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 249 transitions, 676 flow [2024-11-19 06:01:45,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:01:45,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:01:45,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 694 transitions. [2024-11-19 06:01:45,321 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8504901960784313 [2024-11-19 06:01:45,322 INFO L175 Difference]: Start difference. First operand has 244 places, 246 transitions, 580 flow. Second operand 3 states and 694 transitions. [2024-11-19 06:01:45,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 249 transitions, 676 flow [2024-11-19 06:01:45,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 249 transitions, 664 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 06:01:45,328 INFO L231 Difference]: Finished difference. Result has 240 places, 245 transitions, 570 flow [2024-11-19 06:01:45,328 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=570, PETRI_PLACES=240, PETRI_TRANSITIONS=245} [2024-11-19 06:01:45,329 INFO L277 CegarLoopForPetriNet]: 259 programPoint places, -19 predicate places. [2024-11-19 06:01:45,329 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 245 transitions, 570 flow [2024-11-19 06:01:45,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 219.0) internal successors, (657), 3 states have internal predecessors, (657), 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) [2024-11-19 06:01:45,330 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:01:45,330 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:01:45,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 06:01:45,331 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-19 06:01:45,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:01:45,331 INFO L85 PathProgramCache]: Analyzing trace with hash -258553338, now seen corresponding path program 1 times [2024-11-19 06:01:45,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:01:45,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594281675] [2024-11-19 06:01:45,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:01:45,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:01:45,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:01:45,456 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:01:45,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:01:45,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594281675] [2024-11-19 06:01:45,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594281675] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:01:45,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146504210] [2024-11-19 06:01:45,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:01:45,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:01:45,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:01:45,462 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 06:01:45,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 06:01:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:01:45,550 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 06:01:45,551 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:01:45,571 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 06:01:45,571 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 06:01:45,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146504210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:01:45,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 06:01:45,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-19 06:01:45,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88300549] [2024-11-19 06:01:45,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:01:45,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:01:45,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:01:45,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:01:45,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 06:01:45,673 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 272 [2024-11-19 06:01:45,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 245 transitions, 570 flow. Second operand has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 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) [2024-11-19 06:01:45,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:01:45,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 272 [2024-11-19 06:01:45,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:01:46,779 INFO L124 PetriNetUnfolderBase]: 1177/6926 cut-off events. [2024-11-19 06:01:46,779 INFO L125 PetriNetUnfolderBase]: For 752/752 co-relation queries the response was YES. [2024-11-19 06:01:46,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9695 conditions, 6926 events. 1177/6926 cut-off events. For 752/752 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 59995 event pairs, 990 based on Foata normal form. 0/6336 useless extension candidates. Maximal degree in co-relation 4882. Up to 2049 conditions per place. [2024-11-19 06:01:46,867 INFO L140 encePairwiseOnDemand]: 269/272 looper letters, 43 selfloop transitions, 2 changer transitions 0/248 dead transitions. [2024-11-19 06:01:46,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 248 transitions, 666 flow [2024-11-19 06:01:46,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:01:46,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:01:46,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 694 transitions. [2024-11-19 06:01:46,872 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8504901960784313 [2024-11-19 06:01:46,872 INFO L175 Difference]: Start difference. First operand has 240 places, 245 transitions, 570 flow. Second operand 3 states and 694 transitions. [2024-11-19 06:01:46,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 248 transitions, 666 flow [2024-11-19 06:01:46,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 248 transitions, 662 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:01:46,883 INFO L231 Difference]: Finished difference. Result has 239 places, 244 transitions, 568 flow [2024-11-19 06:01:46,884 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=568, PETRI_PLACES=239, PETRI_TRANSITIONS=244} [2024-11-19 06:01:46,885 INFO L277 CegarLoopForPetriNet]: 259 programPoint places, -20 predicate places. [2024-11-19 06:01:46,885 INFO L471 AbstractCegarLoop]: Abstraction has has 239 places, 244 transitions, 568 flow [2024-11-19 06:01:46,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 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) [2024-11-19 06:01:46,886 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:01:46,886 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:01:46,903 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 06:01:47,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-19 06:01:47,091 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-19 06:01:47,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:01:47,092 INFO L85 PathProgramCache]: Analyzing trace with hash 47910380, now seen corresponding path program 1 times [2024-11-19 06:01:47,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:01:47,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718804812] [2024-11-19 06:01:47,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:01:47,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:01:47,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:01:47,208 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:01:47,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:01:47,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718804812] [2024-11-19 06:01:47,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718804812] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:01:47,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075664762] [2024-11-19 06:01:47,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:01:47,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:01:47,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:01:47,211 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 06:01:47,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 06:01:47,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:01:47,309 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 06:01:47,311 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:01:47,410 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:01:47,411 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 06:01:47,489 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:01:47,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075664762] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 06:01:47,490 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 06:01:47,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-19 06:01:47,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610545607] [2024-11-19 06:01:47,490 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 06:01:47,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 06:01:47,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:01:47,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 06:01:47,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 06:01:47,837 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 272 [2024-11-19 06:01:47,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 244 transitions, 568 flow. Second operand has 10 states, 10 states have (on average 223.3) internal successors, (2233), 10 states have internal predecessors, (2233), 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) [2024-11-19 06:01:47,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:01:47,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 272 [2024-11-19 06:01:47,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:01:47,952 INFO L124 PetriNetUnfolderBase]: 62/390 cut-off events. [2024-11-19 06:01:47,954 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-11-19 06:01:47,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 548 conditions, 390 events. 62/390 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1457 event pairs, 0 based on Foata normal form. 12/402 useless extension candidates. Maximal degree in co-relation 540. Up to 42 conditions per place. [2024-11-19 06:01:47,956 INFO L140 encePairwiseOnDemand]: 267/272 looper letters, 29 selfloop transitions, 7 changer transitions 0/80 dead transitions. [2024-11-19 06:01:47,956 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 80 transitions, 248 flow [2024-11-19 06:01:47,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 06:01:47,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 06:01:47,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2027 transitions. [2024-11-19 06:01:47,960 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8280228758169934 [2024-11-19 06:01:47,961 INFO L175 Difference]: Start difference. First operand has 239 places, 244 transitions, 568 flow. Second operand 9 states and 2027 transitions. [2024-11-19 06:01:47,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 80 transitions, 248 flow [2024-11-19 06:01:47,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 80 transitions, 248 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 06:01:47,963 INFO L231 Difference]: Finished difference. Result has 75 places, 60 transitions, 150 flow [2024-11-19 06:01:47,963 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=150, PETRI_PLACES=75, PETRI_TRANSITIONS=60} [2024-11-19 06:01:47,963 INFO L277 CegarLoopForPetriNet]: 259 programPoint places, -184 predicate places. [2024-11-19 06:01:47,963 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 60 transitions, 150 flow [2024-11-19 06:01:47,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 223.3) internal successors, (2233), 10 states have internal predecessors, (2233), 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) [2024-11-19 06:01:47,965 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:01:47,966 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:01:47,983 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 06:01:48,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:01:48,170 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-19 06:01:48,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:01:48,171 INFO L85 PathProgramCache]: Analyzing trace with hash 964841816, now seen corresponding path program 1 times [2024-11-19 06:01:48,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:01:48,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882226747] [2024-11-19 06:01:48,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:01:48,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:01:48,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:01:48,202 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:01:48,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:01:48,235 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:01:48,235 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:01:48,235 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (43 of 44 remaining) [2024-11-19 06:01:48,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (42 of 44 remaining) [2024-11-19 06:01:48,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (41 of 44 remaining) [2024-11-19 06:01:48,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (40 of 44 remaining) [2024-11-19 06:01:48,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (39 of 44 remaining) [2024-11-19 06:01:48,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (38 of 44 remaining) [2024-11-19 06:01:48,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (37 of 44 remaining) [2024-11-19 06:01:48,237 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (36 of 44 remaining) [2024-11-19 06:01:48,237 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (35 of 44 remaining) [2024-11-19 06:01:48,237 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (34 of 44 remaining) [2024-11-19 06:01:48,237 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (33 of 44 remaining) [2024-11-19 06:01:48,237 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (32 of 44 remaining) [2024-11-19 06:01:48,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (31 of 44 remaining) [2024-11-19 06:01:48,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (30 of 44 remaining) [2024-11-19 06:01:48,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (29 of 44 remaining) [2024-11-19 06:01:48,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (28 of 44 remaining) [2024-11-19 06:01:48,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (27 of 44 remaining) [2024-11-19 06:01:48,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (26 of 44 remaining) [2024-11-19 06:01:48,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (25 of 44 remaining) [2024-11-19 06:01:48,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (24 of 44 remaining) [2024-11-19 06:01:48,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (23 of 44 remaining) [2024-11-19 06:01:48,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (22 of 44 remaining) [2024-11-19 06:01:48,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (21 of 44 remaining) [2024-11-19 06:01:48,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (20 of 44 remaining) [2024-11-19 06:01:48,240 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (19 of 44 remaining) [2024-11-19 06:01:48,240 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (18 of 44 remaining) [2024-11-19 06:01:48,240 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (17 of 44 remaining) [2024-11-19 06:01:48,240 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (16 of 44 remaining) [2024-11-19 06:01:48,241 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (15 of 44 remaining) [2024-11-19 06:01:48,241 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (14 of 44 remaining) [2024-11-19 06:01:48,241 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE (13 of 44 remaining) [2024-11-19 06:01:48,241 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 44 remaining) [2024-11-19 06:01:48,241 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (11 of 44 remaining) [2024-11-19 06:01:48,241 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (10 of 44 remaining) [2024-11-19 06:01:48,242 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (9 of 44 remaining) [2024-11-19 06:01:48,242 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (8 of 44 remaining) [2024-11-19 06:01:48,242 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (7 of 44 remaining) [2024-11-19 06:01:48,242 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (6 of 44 remaining) [2024-11-19 06:01:48,242 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (5 of 44 remaining) [2024-11-19 06:01:48,242 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (4 of 44 remaining) [2024-11-19 06:01:48,243 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 44 remaining) [2024-11-19 06:01:48,243 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 44 remaining) [2024-11-19 06:01:48,243 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 44 remaining) [2024-11-19 06:01:48,243 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 44 remaining) [2024-11-19 06:01:48,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 06:01:48,243 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:01:48,244 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:01:48,244 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-19 06:01:48,284 INFO L143 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2024-11-19 06:01:48,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 308 places, 326 transitions, 724 flow [2024-11-19 06:01:49,176 INFO L124 PetriNetUnfolderBase]: 544/5934 cut-off events. [2024-11-19 06:01:49,176 INFO L125 PetriNetUnfolderBase]: For 419/419 co-relation queries the response was YES. [2024-11-19 06:01:49,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6370 conditions, 5934 events. 544/5934 cut-off events. For 419/419 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 46621 event pairs, 64 based on Foata normal form. 0/4713 useless extension candidates. Maximal degree in co-relation 3413. Up to 192 conditions per place. [2024-11-19 06:01:49,234 INFO L82 GeneralOperation]: Start removeDead. Operand has 308 places, 326 transitions, 724 flow [2024-11-19 06:01:49,298 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 308 places, 326 transitions, 724 flow [2024-11-19 06:01:49,300 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:01:49,300 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@16b6b2a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:01:49,300 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-11-19 06:01:49,302 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:01:49,302 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-11-19 06:01:49,303 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:01:49,303 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:01:49,303 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:01:49,303 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-19 06:01:49,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:01:49,304 INFO L85 PathProgramCache]: Analyzing trace with hash 292481358, now seen corresponding path program 1 times [2024-11-19 06:01:49,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:01:49,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124788906] [2024-11-19 06:01:49,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:01:49,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:01:49,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:01:49,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:01:49,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:01:49,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124788906] [2024-11-19 06:01:49,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124788906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:01:49,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:01:49,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:01:49,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826316633] [2024-11-19 06:01:49,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:01:49,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:01:49,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:01:49,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:01:49,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:01:49,411 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 326 [2024-11-19 06:01:49,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 326 transitions, 724 flow. Second operand has 3 states, 3 states have (on average 258.3333333333333) internal successors, (775), 3 states have internal predecessors, (775), 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) [2024-11-19 06:01:49,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:01:49,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 326 [2024-11-19 06:01:49,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:01:59,899 INFO L124 PetriNetUnfolderBase]: 12815/49237 cut-off events. [2024-11-19 06:01:59,899 INFO L125 PetriNetUnfolderBase]: For 7466/8012 co-relation queries the response was YES. [2024-11-19 06:02:00,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71260 conditions, 49237 events. 12815/49237 cut-off events. For 7466/8012 co-relation queries the response was YES. Maximal size of possible extension queue 474. Compared 571396 event pairs, 10886 based on Foata normal form. 19499/60616 useless extension candidates. Maximal degree in co-relation 36872. Up to 19303 conditions per place. [2024-11-19 06:02:00,888 INFO L140 encePairwiseOnDemand]: 307/326 looper letters, 47 selfloop transitions, 2 changer transitions 0/303 dead transitions. [2024-11-19 06:02:00,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 303 transitions, 776 flow [2024-11-19 06:02:00,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:02:00,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:02:00,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 837 transitions. [2024-11-19 06:02:00,891 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8558282208588958 [2024-11-19 06:02:00,891 INFO L175 Difference]: Start difference. First operand has 308 places, 326 transitions, 724 flow. Second operand 3 states and 837 transitions. [2024-11-19 06:02:00,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 303 transitions, 776 flow [2024-11-19 06:02:00,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 303 transitions, 776 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 06:02:00,911 INFO L231 Difference]: Finished difference. Result has 297 places, 303 transitions, 682 flow [2024-11-19 06:02:00,912 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=678, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=682, PETRI_PLACES=297, PETRI_TRANSITIONS=303} [2024-11-19 06:02:00,912 INFO L277 CegarLoopForPetriNet]: 308 programPoint places, -11 predicate places. [2024-11-19 06:02:00,913 INFO L471 AbstractCegarLoop]: Abstraction has has 297 places, 303 transitions, 682 flow [2024-11-19 06:02:00,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 258.3333333333333) internal successors, (775), 3 states have internal predecessors, (775), 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) [2024-11-19 06:02:00,913 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:00,913 INFO L204 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] [2024-11-19 06:02:00,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 06:02:00,914 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-19 06:02:00,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:00,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1175482534, now seen corresponding path program 1 times [2024-11-19 06:02:00,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:00,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433497495] [2024-11-19 06:02:00,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:00,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:00,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:00,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:02:00,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433497495] [2024-11-19 06:02:00,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433497495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:02:00,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:02:00,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:02:00,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566919258] [2024-11-19 06:02:00,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:02:00,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:02:00,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:02:00,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:02:00,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:02:01,006 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 326 [2024-11-19 06:02:01,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 303 transitions, 682 flow. Second operand has 3 states, 3 states have (on average 240.0) internal successors, (720), 3 states have internal predecessors, (720), 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) [2024-11-19 06:02:01,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:02:01,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 326 [2024-11-19 06:02:01,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:02:12,774 INFO L124 PetriNetUnfolderBase]: 17515/54770 cut-off events. [2024-11-19 06:02:12,774 INFO L125 PetriNetUnfolderBase]: For 7467/7915 co-relation queries the response was YES. [2024-11-19 06:02:13,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84337 conditions, 54770 events. 17515/54770 cut-off events. For 7467/7915 co-relation queries the response was YES. Maximal size of possible extension queue 489. Compared 595268 event pairs, 12762 based on Foata normal form. 0/49554 useless extension candidates. Maximal degree in co-relation 84304. Up to 22195 conditions per place. [2024-11-19 06:02:13,826 INFO L140 encePairwiseOnDemand]: 303/326 looper letters, 51 selfloop transitions, 11 changer transitions 0/297 dead transitions. [2024-11-19 06:02:13,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 297 transitions, 794 flow [2024-11-19 06:02:13,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:02:13,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:02:13,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 791 transitions. [2024-11-19 06:02:13,829 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8087934560327198 [2024-11-19 06:02:13,829 INFO L175 Difference]: Start difference. First operand has 297 places, 303 transitions, 682 flow. Second operand 3 states and 791 transitions. [2024-11-19 06:02:13,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 297 transitions, 794 flow [2024-11-19 06:02:13,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 297 transitions, 790 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:02:13,851 INFO L231 Difference]: Finished difference. Result has 285 places, 291 transitions, 676 flow [2024-11-19 06:02:13,851 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=676, PETRI_PLACES=285, PETRI_TRANSITIONS=291} [2024-11-19 06:02:13,852 INFO L277 CegarLoopForPetriNet]: 308 programPoint places, -23 predicate places. [2024-11-19 06:02:13,852 INFO L471 AbstractCegarLoop]: Abstraction has has 285 places, 291 transitions, 676 flow [2024-11-19 06:02:13,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 240.0) internal successors, (720), 3 states have internal predecessors, (720), 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) [2024-11-19 06:02:13,853 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:13,853 INFO L204 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] [2024-11-19 06:02:13,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 06:02:13,853 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-19 06:02:13,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:13,853 INFO L85 PathProgramCache]: Analyzing trace with hash -75841800, now seen corresponding path program 1 times [2024-11-19 06:02:13,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:13,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012412375] [2024-11-19 06:02:13,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:13,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:13,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:13,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:02:13,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012412375] [2024-11-19 06:02:13,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012412375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:02:13,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:02:13,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 06:02:13,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401876300] [2024-11-19 06:02:13,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:02:13,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:02:13,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:02:13,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:02:13,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:02:13,959 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 326 [2024-11-19 06:02:13,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 291 transitions, 676 flow. Second operand has 3 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 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) [2024-11-19 06:02:13,961 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:02:13,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 326 [2024-11-19 06:02:13,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:02:20,847 INFO L124 PetriNetUnfolderBase]: 8365/37765 cut-off events. [2024-11-19 06:02:20,848 INFO L125 PetriNetUnfolderBase]: For 9868/10422 co-relation queries the response was YES. [2024-11-19 06:02:21,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55596 conditions, 37765 events. 8365/37765 cut-off events. For 9868/10422 co-relation queries the response was YES. Maximal size of possible extension queue 565. Compared 459389 event pairs, 3344 based on Foata normal form. 300/33765 useless extension candidates. Maximal degree in co-relation 37121. Up to 8245 conditions per place. [2024-11-19 06:02:21,484 INFO L140 encePairwiseOnDemand]: 314/326 looper letters, 51 selfloop transitions, 8 changer transitions 0/313 dead transitions. [2024-11-19 06:02:21,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 313 transitions, 874 flow [2024-11-19 06:02:21,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:02:21,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:02:21,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 873 transitions. [2024-11-19 06:02:21,487 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8926380368098159 [2024-11-19 06:02:21,487 INFO L175 Difference]: Start difference. First operand has 285 places, 291 transitions, 676 flow. Second operand 3 states and 873 transitions. [2024-11-19 06:02:21,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 313 transitions, 874 flow [2024-11-19 06:02:21,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 313 transitions, 852 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:02:21,510 INFO L231 Difference]: Finished difference. Result has 286 places, 295 transitions, 702 flow [2024-11-19 06:02:21,511 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=702, PETRI_PLACES=286, PETRI_TRANSITIONS=295} [2024-11-19 06:02:21,511 INFO L277 CegarLoopForPetriNet]: 308 programPoint places, -22 predicate places. [2024-11-19 06:02:21,511 INFO L471 AbstractCegarLoop]: Abstraction has has 286 places, 295 transitions, 702 flow [2024-11-19 06:02:21,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 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) [2024-11-19 06:02:21,512 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:02:21,512 INFO L204 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] [2024-11-19 06:02:21,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 06:02:21,513 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-19 06:02:21,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:02:21,513 INFO L85 PathProgramCache]: Analyzing trace with hash -639082542, now seen corresponding path program 1 times [2024-11-19 06:02:21,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:02:21,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431805811] [2024-11-19 06:02:21,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:02:21,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:02:21,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:02:21,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:02:21,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:02:21,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431805811] [2024-11-19 06:02:21,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431805811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:02:21,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:02:21,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:02:21,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26941000] [2024-11-19 06:02:21,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:02:21,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 06:02:21,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:02:21,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 06:02:21,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 06:02:21,965 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 326 [2024-11-19 06:02:21,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 295 transitions, 702 flow. Second operand has 6 states, 6 states have (on average 251.66666666666666) internal successors, (1510), 6 states have internal predecessors, (1510), 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) [2024-11-19 06:02:21,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:02:21,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 326 [2024-11-19 06:02:21,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand