./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 023d838f 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/goblint-regression/06-symbeq_02-funloop_norace.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 ebedbc62bd44b0c214a81c07c6f99e850a5d96675b77716f8547d1b39e8b2cf8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 14:28:57,091 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 14:28:57,181 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-10 14:28:57,190 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 14:28:57,190 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 14:28:57,213 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 14:28:57,214 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 14:28:57,214 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 14:28:57,215 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 14:28:57,215 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 14:28:57,216 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 14:28:57,216 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 14:28:57,216 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 14:28:57,217 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 14:28:57,217 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 14:28:57,217 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 14:28:57,218 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 14:28:57,219 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 14:28:57,219 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 14:28:57,220 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 14:28:57,220 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 14:28:57,222 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 14:28:57,223 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-10 14:28:57,223 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 14:28:57,223 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 14:28:57,223 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 14:28:57,224 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 14:28:57,224 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 14:28:57,224 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 14:28:57,224 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 14:28:57,225 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 14:28:57,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:28:57,226 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 14:28:57,226 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 14:28:57,226 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 14:28:57,227 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 14:28:57,227 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 14:28:57,227 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 14:28:57,227 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 14:28:57,227 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 14:28:57,228 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 14:28:57,228 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebedbc62bd44b0c214a81c07c6f99e850a5d96675b77716f8547d1b39e8b2cf8 [2024-11-10 14:28:57,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 14:28:57,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 14:28:57,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 14:28:57,504 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 14:28:57,504 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 14:28:57,505 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i [2024-11-10 14:28:58,914 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 14:28:59,170 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 14:28:59,171 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i [2024-11-10 14:28:59,190 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20930dc40/aff85b67b3114e1db52bf8144c2ddb69/FLAGd71063088 [2024-11-10 14:28:59,490 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20930dc40/aff85b67b3114e1db52bf8144c2ddb69 [2024-11-10 14:28:59,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 14:28:59,493 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 14:28:59,496 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 14:28:59,496 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 14:28:59,502 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 14:28:59,502 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:28:59" (1/1) ... [2024-11-10 14:28:59,503 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79cef2cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:28:59, skipping insertion in model container [2024-11-10 14:28:59,504 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:28:59" (1/1) ... [2024-11-10 14:28:59,542 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 14:29:00,018 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:29:00,066 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 14:29:00,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:29:00,176 INFO L204 MainTranslator]: Completed translation [2024-11-10 14:29:00,177 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:00 WrapperNode [2024-11-10 14:29:00,177 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 14:29:00,178 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 14:29:00,179 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 14:29:00,179 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 14:29:00,186 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:00" (1/1) ... [2024-11-10 14:29:00,210 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:00" (1/1) ... [2024-11-10 14:29:00,254 INFO L138 Inliner]: procedures = 263, calls = 70, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 153 [2024-11-10 14:29:00,255 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 14:29:00,256 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 14:29:00,256 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 14:29:00,256 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 14:29:00,265 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:00" (1/1) ... [2024-11-10 14:29:00,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:00" (1/1) ... [2024-11-10 14:29:00,269 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:00" (1/1) ... [2024-11-10 14:29:00,273 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:00" (1/1) ... [2024-11-10 14:29:00,288 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:00" (1/1) ... [2024-11-10 14:29:00,293 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:00" (1/1) ... [2024-11-10 14:29:00,294 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:00" (1/1) ... [2024-11-10 14:29:00,299 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:00" (1/1) ... [2024-11-10 14:29:00,302 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 14:29:00,307 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 14:29:00,307 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 14:29:00,307 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 14:29:00,308 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:00" (1/1) ... [2024-11-10 14:29:00,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:29:00,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:29:00,355 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) [2024-11-10 14:29:00,398 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 [2024-11-10 14:29:00,448 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 14:29:00,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-10 14:29:00,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-10 14:29:00,449 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 14:29:00,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 14:29:00,449 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-10 14:29:00,449 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-10 14:29:00,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-10 14:29:00,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 14:29:00,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 14:29:00,468 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 14:29:00,602 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 14:29:00,605 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 14:29:00,886 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 14:29:00,887 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 14:29:00,922 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 14:29:00,922 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 14:29:00,923 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:29:00 BoogieIcfgContainer [2024-11-10 14:29:00,923 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 14:29:00,926 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 14:29:00,927 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 14:29:00,930 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 14:29:00,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:28:59" (1/3) ... [2024-11-10 14:29:00,930 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ebf76e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:29:00, skipping insertion in model container [2024-11-10 14:29:00,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:00" (2/3) ... [2024-11-10 14:29:00,931 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ebf76e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:29:00, skipping insertion in model container [2024-11-10 14:29:00,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:29:00" (3/3) ... [2024-11-10 14:29:00,932 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_02-funloop_norace.i [2024-11-10 14:29:00,949 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 14:29:00,949 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-10 14:29:00,949 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 14:29:01,029 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 14:29:01,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 165 transitions, 334 flow [2024-11-10 14:29:01,155 INFO L124 PetriNetUnfolderBase]: 6/164 cut-off events. [2024-11-10 14:29:01,156 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:29:01,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 164 events. 6/164 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 138 event pairs, 0 based on Foata normal form. 0/154 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2024-11-10 14:29:01,164 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 165 transitions, 334 flow [2024-11-10 14:29:01,170 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 162 places, 164 transitions, 331 flow [2024-11-10 14:29:01,179 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:29:01,186 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;@15ad2dba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:29:01,187 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-10 14:29:01,217 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:29:01,218 INFO L124 PetriNetUnfolderBase]: 4/123 cut-off events. [2024-11-10 14:29:01,218 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:29:01,218 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:01,219 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, 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] [2024-11-10 14:29:01,220 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:29:01,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:01,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1313153939, now seen corresponding path program 1 times [2024-11-10 14:29:01,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:01,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580510838] [2024-11-10 14:29:01,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:01,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:01,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:01,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:01,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:01,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580510838] [2024-11-10 14:29:01,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580510838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:01,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:01,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:29:01,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100277129] [2024-11-10 14:29:01,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:01,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 14:29:01,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:01,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 14:29:01,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 14:29:01,600 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 165 [2024-11-10 14:29:01,604 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 164 transitions, 331 flow. Second operand has 2 states, 2 states have (on average 158.5) internal successors, (317), 2 states have internal predecessors, (317), 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) [2024-11-10 14:29:01,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:01,607 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 165 [2024-11-10 14:29:01,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:01,683 INFO L124 PetriNetUnfolderBase]: 9/239 cut-off events. [2024-11-10 14:29:01,683 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:29:01,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259 conditions, 239 events. 9/239 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 362 event pairs, 4 based on Foata normal form. 9/234 useless extension candidates. Maximal degree in co-relation 172. Up to 16 conditions per place. [2024-11-10 14:29:01,687 INFO L140 encePairwiseOnDemand]: 162/165 looper letters, 5 selfloop transitions, 0 changer transitions 0/161 dead transitions. [2024-11-10 14:29:01,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 161 transitions, 335 flow [2024-11-10 14:29:01,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 14:29:01,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 14:29:01,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 322 transitions. [2024-11-10 14:29:01,704 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9757575757575757 [2024-11-10 14:29:01,707 INFO L175 Difference]: Start difference. First operand has 162 places, 164 transitions, 331 flow. Second operand 2 states and 322 transitions. [2024-11-10 14:29:01,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 161 transitions, 335 flow [2024-11-10 14:29:01,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 161 transitions, 334 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:29:01,720 INFO L231 Difference]: Finished difference. Result has 162 places, 161 transitions, 324 flow [2024-11-10 14:29:01,722 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=324, PETRI_PLACES=162, PETRI_TRANSITIONS=161} [2024-11-10 14:29:01,728 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 0 predicate places. [2024-11-10 14:29:01,728 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 161 transitions, 324 flow [2024-11-10 14:29:01,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 158.5) internal successors, (317), 2 states have internal predecessors, (317), 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) [2024-11-10 14:29:01,729 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:01,730 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, 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] [2024-11-10 14:29:01,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 14:29:01,731 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:29:01,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:01,732 INFO L85 PathProgramCache]: Analyzing trace with hash 937818848, now seen corresponding path program 1 times [2024-11-10 14:29:01,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:01,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581866644] [2024-11-10 14:29:01,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:01,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:01,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:01,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:01,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:01,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581866644] [2024-11-10 14:29:01,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581866644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:01,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:01,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 14:29:01,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633573514] [2024-11-10 14:29:01,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:01,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:29:01,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:01,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:29:01,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:29:01,952 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 165 [2024-11-10 14:29:01,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 161 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 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) [2024-11-10 14:29:01,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:01,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 165 [2024-11-10 14:29:01,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:02,016 INFO L124 PetriNetUnfolderBase]: 11/250 cut-off events. [2024-11-10 14:29:02,017 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:29:02,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 250 events. 11/250 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 407 event pairs, 6 based on Foata normal form. 1/236 useless extension candidates. Maximal degree in co-relation 278. Up to 26 conditions per place. [2024-11-10 14:29:02,022 INFO L140 encePairwiseOnDemand]: 162/165 looper letters, 10 selfloop transitions, 2 changer transitions 0/162 dead transitions. [2024-11-10 14:29:02,022 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 162 transitions, 350 flow [2024-11-10 14:29:02,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:29:02,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:29:02,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 466 transitions. [2024-11-10 14:29:02,026 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9414141414141414 [2024-11-10 14:29:02,027 INFO L175 Difference]: Start difference. First operand has 162 places, 161 transitions, 324 flow. Second operand 3 states and 466 transitions. [2024-11-10 14:29:02,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 162 transitions, 350 flow [2024-11-10 14:29:02,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 162 transitions, 350 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:29:02,034 INFO L231 Difference]: Finished difference. Result has 165 places, 162 transitions, 336 flow [2024-11-10 14:29:02,035 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=165, PETRI_TRANSITIONS=162} [2024-11-10 14:29:02,036 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 3 predicate places. [2024-11-10 14:29:02,037 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 162 transitions, 336 flow [2024-11-10 14:29:02,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 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) [2024-11-10 14:29:02,038 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:02,038 INFO L204 CegarLoopForPetriNet]: trace histogram [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, 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] [2024-11-10 14:29:02,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 14:29:02,039 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:29:02,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:02,040 INFO L85 PathProgramCache]: Analyzing trace with hash 41218071, now seen corresponding path program 1 times [2024-11-10 14:29:02,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:02,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871076723] [2024-11-10 14:29:02,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:02,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:02,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:02,296 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:02,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:02,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871076723] [2024-11-10 14:29:02,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871076723] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:29:02,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432596563] [2024-11-10 14:29:02,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:02,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:29:02,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:29:02,300 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) [2024-11-10 14:29:02,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 14:29:02,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:02,408 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 14:29:02,414 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:29:02,479 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:02,483 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:29:02,546 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:02,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432596563] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:29:02,547 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:29:02,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-10 14:29:02,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145291564] [2024-11-10 14:29:02,550 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:29:02,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 14:29:02,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:02,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 14:29:02,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 14:29:02,583 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 165 [2024-11-10 14:29:02,585 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 162 transitions, 336 flow. Second operand has 10 states, 10 states have (on average 150.0) internal successors, (1500), 10 states have internal predecessors, (1500), 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) [2024-11-10 14:29:02,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:02,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 165 [2024-11-10 14:29:02,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:02,712 INFO L124 PetriNetUnfolderBase]: 11/259 cut-off events. [2024-11-10 14:29:02,713 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-10 14:29:02,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 309 conditions, 259 events. 11/259 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 402 event pairs, 6 based on Foata normal form. 2/246 useless extension candidates. Maximal degree in co-relation 304. Up to 26 conditions per place. [2024-11-10 14:29:02,717 INFO L140 encePairwiseOnDemand]: 159/165 looper letters, 14 selfloop transitions, 9 changer transitions 0/170 dead transitions. [2024-11-10 14:29:02,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 170 transitions, 400 flow [2024-11-10 14:29:02,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:29:02,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:29:02,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1357 transitions. [2024-11-10 14:29:02,722 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9138047138047138 [2024-11-10 14:29:02,722 INFO L175 Difference]: Start difference. First operand has 165 places, 162 transitions, 336 flow. Second operand 9 states and 1357 transitions. [2024-11-10 14:29:02,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 170 transitions, 400 flow [2024-11-10 14:29:02,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 170 transitions, 398 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:29:02,728 INFO L231 Difference]: Finished difference. Result has 175 places, 168 transitions, 384 flow [2024-11-10 14:29:02,728 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=384, PETRI_PLACES=175, PETRI_TRANSITIONS=168} [2024-11-10 14:29:02,729 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 13 predicate places. [2024-11-10 14:29:02,730 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 168 transitions, 384 flow [2024-11-10 14:29:02,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 150.0) internal successors, (1500), 10 states have internal predecessors, (1500), 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) [2024-11-10 14:29:02,731 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:02,731 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 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, 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] [2024-11-10 14:29:02,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-10 14:29:02,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:29:02,933 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:29:02,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:02,934 INFO L85 PathProgramCache]: Analyzing trace with hash -409158971, now seen corresponding path program 2 times [2024-11-10 14:29:02,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:02,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924225515] [2024-11-10 14:29:02,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:02,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:02,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:03,188 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:03,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:03,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924225515] [2024-11-10 14:29:03,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924225515] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:29:03,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495249148] [2024-11-10 14:29:03,190 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 14:29:03,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:29:03,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:29:03,192 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) [2024-11-10 14:29:03,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 14:29:03,288 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 14:29:03,288 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 14:29:03,293 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-10 14:29:03,301 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:29:03,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-10 14:29:03,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-10 14:29:03,393 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:29:03,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-10 14:29:03,436 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:29:03,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-11-10 14:29:03,470 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-10 14:29:03,470 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:29:03,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495249148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:03,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:29:03,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-10 14:29:03,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676273206] [2024-11-10 14:29:03,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:03,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:29:03,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:03,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:29:03,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:29:03,657 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 165 [2024-11-10 14:29:03,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 168 transitions, 384 flow. Second operand has 6 states, 6 states have (on average 140.5) internal successors, (843), 6 states have internal predecessors, (843), 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) [2024-11-10 14:29:03,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:03,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 165 [2024-11-10 14:29:03,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:03,882 INFO L124 PetriNetUnfolderBase]: 150/852 cut-off events. [2024-11-10 14:29:03,882 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-10 14:29:03,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1181 conditions, 852 events. 150/852 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4731 event pairs, 62 based on Foata normal form. 0/793 useless extension candidates. Maximal degree in co-relation 1174. Up to 240 conditions per place. [2024-11-10 14:29:03,887 INFO L140 encePairwiseOnDemand]: 154/165 looper letters, 30 selfloop transitions, 22 changer transitions 0/197 dead transitions. [2024-11-10 14:29:03,887 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 197 transitions, 546 flow [2024-11-10 14:29:03,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:29:03,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:29:03,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 887 transitions. [2024-11-10 14:29:03,890 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.895959595959596 [2024-11-10 14:29:03,891 INFO L175 Difference]: Start difference. First operand has 175 places, 168 transitions, 384 flow. Second operand 6 states and 887 transitions. [2024-11-10 14:29:03,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 197 transitions, 546 flow [2024-11-10 14:29:03,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 197 transitions, 540 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-10 14:29:03,895 INFO L231 Difference]: Finished difference. Result has 184 places, 189 transitions, 528 flow [2024-11-10 14:29:03,896 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=528, PETRI_PLACES=184, PETRI_TRANSITIONS=189} [2024-11-10 14:29:03,896 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 22 predicate places. [2024-11-10 14:29:03,897 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 189 transitions, 528 flow [2024-11-10 14:29:03,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 140.5) internal successors, (843), 6 states have internal predecessors, (843), 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) [2024-11-10 14:29:03,897 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:03,898 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 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, 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] [2024-11-10 14:29:03,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-10 14:29:04,101 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,SelfDestructingSolverStorable3 [2024-11-10 14:29:04,102 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:29:04,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:04,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1942479620, now seen corresponding path program 1 times [2024-11-10 14:29:04,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:04,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797581807] [2024-11-10 14:29:04,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:04,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:04,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:04,290 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:04,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:04,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797581807] [2024-11-10 14:29:04,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797581807] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:29:04,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087736758] [2024-11-10 14:29:04,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:04,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:29:04,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:29:04,293 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) [2024-11-10 14:29:04,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 14:29:04,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:04,389 INFO L255 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 14:29:04,392 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:29:04,440 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:04,440 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:29:04,546 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:04,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087736758] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:29:04,571 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:29:04,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-10 14:29:04,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566356499] [2024-11-10 14:29:04,571 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:29:04,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-10 14:29:04,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:04,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-10 14:29:04,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-10 14:29:04,612 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 165 [2024-11-10 14:29:04,616 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 189 transitions, 528 flow. Second operand has 18 states, 18 states have (on average 150.0) internal successors, (2700), 18 states have internal predecessors, (2700), 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) [2024-11-10 14:29:04,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:04,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 165 [2024-11-10 14:29:04,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:04,879 INFO L124 PetriNetUnfolderBase]: 58/589 cut-off events. [2024-11-10 14:29:04,880 INFO L125 PetriNetUnfolderBase]: For 83/86 co-relation queries the response was YES. [2024-11-10 14:29:04,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 876 conditions, 589 events. 58/589 cut-off events. For 83/86 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2231 event pairs, 11 based on Foata normal form. 4/558 useless extension candidates. Maximal degree in co-relation 864. Up to 63 conditions per place. [2024-11-10 14:29:04,885 INFO L140 encePairwiseOnDemand]: 159/165 looper letters, 18 selfloop transitions, 21 changer transitions 0/207 dead transitions. [2024-11-10 14:29:04,885 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 207 transitions, 694 flow [2024-11-10 14:29:04,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-10 14:29:04,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-10 14:29:04,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3151 transitions. [2024-11-10 14:29:04,892 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9093795093795094 [2024-11-10 14:29:04,893 INFO L175 Difference]: Start difference. First operand has 184 places, 189 transitions, 528 flow. Second operand 21 states and 3151 transitions. [2024-11-10 14:29:04,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 207 transitions, 694 flow [2024-11-10 14:29:04,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 207 transitions, 694 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:29:04,899 INFO L231 Difference]: Finished difference. Result has 209 places, 202 transitions, 658 flow [2024-11-10 14:29:04,899 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=528, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=658, PETRI_PLACES=209, PETRI_TRANSITIONS=202} [2024-11-10 14:29:04,900 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 47 predicate places. [2024-11-10 14:29:04,900 INFO L471 AbstractCegarLoop]: Abstraction has has 209 places, 202 transitions, 658 flow [2024-11-10 14:29:04,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 150.0) internal successors, (2700), 18 states have internal predecessors, (2700), 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) [2024-11-10 14:29:04,902 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:04,903 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 7, 7, 7, 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, 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] [2024-11-10 14:29:04,920 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-10 14:29:05,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:29:05,104 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:29:05,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:05,104 INFO L85 PathProgramCache]: Analyzing trace with hash 80573272, now seen corresponding path program 2 times [2024-11-10 14:29:05,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:05,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547343034] [2024-11-10 14:29:05,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:05,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:05,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:05,511 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:05,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:05,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547343034] [2024-11-10 14:29:05,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547343034] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:29:05,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19012795] [2024-11-10 14:29:05,514 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 14:29:05,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:29:05,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:29:05,517 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:29:05,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 14:29:05,623 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 14:29:05,624 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 14:29:05,628 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-10 14:29:05,637 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:29:05,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-10 14:29:05,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-10 14:29:05,711 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:29:05,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-10 14:29:05,760 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:29:05,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-11-10 14:29:05,798 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-10 14:29:05,799 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:29:05,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19012795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:05,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:29:05,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-10 14:29:05,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990805099] [2024-11-10 14:29:05,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:05,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:29:05,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:05,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:29:05,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-10 14:29:05,941 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 165 [2024-11-10 14:29:05,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 202 transitions, 658 flow. Second operand has 6 states, 6 states have (on average 140.5) internal successors, (843), 6 states have internal predecessors, (843), 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) [2024-11-10 14:29:05,943 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:05,943 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 165 [2024-11-10 14:29:05,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:06,137 INFO L124 PetriNetUnfolderBase]: 206/1130 cut-off events. [2024-11-10 14:29:06,138 INFO L125 PetriNetUnfolderBase]: For 238/258 co-relation queries the response was YES. [2024-11-10 14:29:06,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1919 conditions, 1130 events. 206/1130 cut-off events. For 238/258 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 6804 event pairs, 62 based on Foata normal form. 5/1073 useless extension candidates. Maximal degree in co-relation 1902. Up to 330 conditions per place. [2024-11-10 14:29:06,144 INFO L140 encePairwiseOnDemand]: 154/165 looper letters, 47 selfloop transitions, 30 changer transitions 0/239 dead transitions. [2024-11-10 14:29:06,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 239 transitions, 928 flow [2024-11-10 14:29:06,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:29:06,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:29:06,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 887 transitions. [2024-11-10 14:29:06,147 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.895959595959596 [2024-11-10 14:29:06,148 INFO L175 Difference]: Start difference. First operand has 209 places, 202 transitions, 658 flow. Second operand 6 states and 887 transitions. [2024-11-10 14:29:06,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 239 transitions, 928 flow [2024-11-10 14:29:06,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 239 transitions, 904 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-10 14:29:06,154 INFO L231 Difference]: Finished difference. Result has 213 places, 231 transitions, 884 flow [2024-11-10 14:29:06,155 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=634, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=884, PETRI_PLACES=213, PETRI_TRANSITIONS=231} [2024-11-10 14:29:06,156 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 51 predicate places. [2024-11-10 14:29:06,156 INFO L471 AbstractCegarLoop]: Abstraction has has 213 places, 231 transitions, 884 flow [2024-11-10 14:29:06,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 140.5) internal successors, (843), 6 states have internal predecessors, (843), 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) [2024-11-10 14:29:06,157 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:06,157 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 7, 7, 7, 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, 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] [2024-11-10 14:29:06,175 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-10 14:29:06,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:29:06,358 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:29:06,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:06,359 INFO L85 PathProgramCache]: Analyzing trace with hash 781112546, now seen corresponding path program 1 times [2024-11-10 14:29:06,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:06,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545209218] [2024-11-10 14:29:06,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:06,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:06,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:06,707 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:06,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:06,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545209218] [2024-11-10 14:29:06,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545209218] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:29:06,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732575048] [2024-11-10 14:29:06,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:06,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:29:06,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:29:06,711 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:29:06,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 14:29:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:06,825 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-10 14:29:06,828 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:29:06,922 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:06,923 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:29:07,129 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:07,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732575048] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:29:07,130 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:29:07,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-10 14:29:07,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785735344] [2024-11-10 14:29:07,131 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:29:07,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-10 14:29:07,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:07,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-10 14:29:07,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-10 14:29:07,174 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 165 [2024-11-10 14:29:07,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 231 transitions, 884 flow. Second operand has 23 states, 23 states have (on average 150.08695652173913) internal successors, (3452), 23 states have internal predecessors, (3452), 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) [2024-11-10 14:29:07,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:07,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 165 [2024-11-10 14:29:07,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:07,594 INFO L124 PetriNetUnfolderBase]: 114/867 cut-off events. [2024-11-10 14:29:07,594 INFO L125 PetriNetUnfolderBase]: For 425/438 co-relation queries the response was YES. [2024-11-10 14:29:07,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1603 conditions, 867 events. 114/867 cut-off events. For 425/438 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4394 event pairs, 14 based on Foata normal form. 8/837 useless extension candidates. Maximal degree in co-relation 1581. Up to 84 conditions per place. [2024-11-10 14:29:07,600 INFO L140 encePairwiseOnDemand]: 159/165 looper letters, 21 selfloop transitions, 30 changer transitions 0/248 dead transitions. [2024-11-10 14:29:07,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 248 transitions, 1108 flow [2024-11-10 14:29:07,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-10 14:29:07,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-10 14:29:07,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4494 transitions. [2024-11-10 14:29:07,609 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9078787878787878 [2024-11-10 14:29:07,609 INFO L175 Difference]: Start difference. First operand has 213 places, 231 transitions, 884 flow. Second operand 30 states and 4494 transitions. [2024-11-10 14:29:07,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 248 transitions, 1108 flow [2024-11-10 14:29:07,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 248 transitions, 1108 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:29:07,617 INFO L231 Difference]: Finished difference. Result has 246 places, 241 transitions, 1036 flow [2024-11-10 14:29:07,618 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=884, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1036, PETRI_PLACES=246, PETRI_TRANSITIONS=241} [2024-11-10 14:29:07,619 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 84 predicate places. [2024-11-10 14:29:07,620 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 241 transitions, 1036 flow [2024-11-10 14:29:07,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 150.08695652173913) internal successors, (3452), 23 states have internal predecessors, (3452), 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) [2024-11-10 14:29:07,622 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:07,622 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 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, 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] [2024-11-10 14:29:07,640 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-10 14:29:07,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:29:07,824 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:29:07,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:07,824 INFO L85 PathProgramCache]: Analyzing trace with hash 2070507911, now seen corresponding path program 2 times [2024-11-10 14:29:07,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:07,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053662193] [2024-11-10 14:29:07,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:07,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:07,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:08,392 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:08,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:08,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053662193] [2024-11-10 14:29:08,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053662193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:08,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:08,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:29:08,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020808131] [2024-11-10 14:29:08,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:08,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:29:08,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:08,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:29:08,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:29:08,475 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 165 [2024-11-10 14:29:08,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 241 transitions, 1036 flow. Second operand has 6 states, 6 states have (on average 135.5) internal successors, (813), 6 states have internal predecessors, (813), 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) [2024-11-10 14:29:08,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:08,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 165 [2024-11-10 14:29:08,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:08,863 INFO L124 PetriNetUnfolderBase]: 422/1696 cut-off events. [2024-11-10 14:29:08,863 INFO L125 PetriNetUnfolderBase]: For 996/1038 co-relation queries the response was YES. [2024-11-10 14:29:08,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3707 conditions, 1696 events. 422/1696 cut-off events. For 996/1038 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 10772 event pairs, 107 based on Foata normal form. 12/1616 useless extension candidates. Maximal degree in co-relation 3681. Up to 718 conditions per place. [2024-11-10 14:29:08,875 INFO L140 encePairwiseOnDemand]: 150/165 looper letters, 76 selfloop transitions, 57 changer transitions 0/296 dead transitions. [2024-11-10 14:29:08,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 296 transitions, 1546 flow [2024-11-10 14:29:08,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:29:08,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:29:08,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 873 transitions. [2024-11-10 14:29:08,878 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8818181818181818 [2024-11-10 14:29:08,878 INFO L175 Difference]: Start difference. First operand has 246 places, 241 transitions, 1036 flow. Second operand 6 states and 873 transitions. [2024-11-10 14:29:08,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 296 transitions, 1546 flow [2024-11-10 14:29:08,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 296 transitions, 1500 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-10 14:29:08,888 INFO L231 Difference]: Finished difference. Result has 238 places, 288 transitions, 1488 flow [2024-11-10 14:29:08,888 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=990, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1488, PETRI_PLACES=238, PETRI_TRANSITIONS=288} [2024-11-10 14:29:08,889 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 76 predicate places. [2024-11-10 14:29:08,889 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 288 transitions, 1488 flow [2024-11-10 14:29:08,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.5) internal successors, (813), 6 states have internal predecessors, (813), 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) [2024-11-10 14:29:08,889 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:08,890 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 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, 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] [2024-11-10 14:29:08,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 14:29:08,890 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:29:08,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:08,891 INFO L85 PathProgramCache]: Analyzing trace with hash 951646209, now seen corresponding path program 1 times [2024-11-10 14:29:08,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:08,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736804080] [2024-11-10 14:29:08,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:08,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:08,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:09,449 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:09,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:09,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736804080] [2024-11-10 14:29:09,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736804080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:09,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:09,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:29:09,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34233940] [2024-11-10 14:29:09,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:09,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:29:09,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:09,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:29:09,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:29:09,541 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 165 [2024-11-10 14:29:09,542 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 288 transitions, 1488 flow. Second operand has 6 states, 6 states have (on average 135.5) internal successors, (813), 6 states have internal predecessors, (813), 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) [2024-11-10 14:29:09,543 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:09,543 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 165 [2024-11-10 14:29:09,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:10,018 INFO L124 PetriNetUnfolderBase]: 542/2148 cut-off events. [2024-11-10 14:29:10,019 INFO L125 PetriNetUnfolderBase]: For 2340/2396 co-relation queries the response was YES. [2024-11-10 14:29:10,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5316 conditions, 2148 events. 542/2148 cut-off events. For 2340/2396 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 15026 event pairs, 113 based on Foata normal form. 13/2075 useless extension candidates. Maximal degree in co-relation 5285. Up to 894 conditions per place. [2024-11-10 14:29:10,036 INFO L140 encePairwiseOnDemand]: 150/165 looper letters, 113 selfloop transitions, 71 changer transitions 0/349 dead transitions. [2024-11-10 14:29:10,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 349 transitions, 2210 flow [2024-11-10 14:29:10,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:29:10,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:29:10,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 873 transitions. [2024-11-10 14:29:10,040 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8818181818181818 [2024-11-10 14:29:10,040 INFO L175 Difference]: Start difference. First operand has 238 places, 288 transitions, 1488 flow. Second operand 6 states and 873 transitions. [2024-11-10 14:29:10,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 349 transitions, 2210 flow [2024-11-10 14:29:10,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 349 transitions, 2146 flow, removed 32 selfloop flow, removed 0 redundant places. [2024-11-10 14:29:10,060 INFO L231 Difference]: Finished difference. Result has 248 places, 341 transitions, 2100 flow [2024-11-10 14:29:10,060 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=1430, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2100, PETRI_PLACES=248, PETRI_TRANSITIONS=341} [2024-11-10 14:29:10,062 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 86 predicate places. [2024-11-10 14:29:10,063 INFO L471 AbstractCegarLoop]: Abstraction has has 248 places, 341 transitions, 2100 flow [2024-11-10 14:29:10,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.5) internal successors, (813), 6 states have internal predecessors, (813), 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) [2024-11-10 14:29:10,063 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:10,064 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 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, 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] [2024-11-10 14:29:10,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 14:29:10,064 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:29:10,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:10,064 INFO L85 PathProgramCache]: Analyzing trace with hash -990597585, now seen corresponding path program 1 times [2024-11-10 14:29:10,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:10,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166813909] [2024-11-10 14:29:10,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:10,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:10,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:10,629 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:10,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:10,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166813909] [2024-11-10 14:29:10,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166813909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:10,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:10,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:29:10,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778379683] [2024-11-10 14:29:10,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:10,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:29:10,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:10,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:29:10,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:29:11,776 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 165 [2024-11-10 14:29:11,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 341 transitions, 2100 flow. Second operand has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-10 14:29:11,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:11,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 165 [2024-11-10 14:29:11,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:12,743 INFO L124 PetriNetUnfolderBase]: 1065/4173 cut-off events. [2024-11-10 14:29:12,743 INFO L125 PetriNetUnfolderBase]: For 5524/5664 co-relation queries the response was YES. [2024-11-10 14:29:12,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11412 conditions, 4173 events. 1065/4173 cut-off events. For 5524/5664 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 33007 event pairs, 148 based on Foata normal form. 45/4188 useless extension candidates. Maximal degree in co-relation 11376. Up to 568 conditions per place. [2024-11-10 14:29:12,784 INFO L140 encePairwiseOnDemand]: 150/165 looper letters, 68 selfloop transitions, 15 changer transitions 3/400 dead transitions. [2024-11-10 14:29:12,784 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 400 transitions, 2390 flow [2024-11-10 14:29:12,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:29:12,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:29:12,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1304 transitions. [2024-11-10 14:29:12,787 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8781144781144781 [2024-11-10 14:29:12,787 INFO L175 Difference]: Start difference. First operand has 248 places, 341 transitions, 2100 flow. Second operand 9 states and 1304 transitions. [2024-11-10 14:29:12,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 400 transitions, 2390 flow [2024-11-10 14:29:12,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 400 transitions, 2308 flow, removed 41 selfloop flow, removed 0 redundant places. [2024-11-10 14:29:12,837 INFO L231 Difference]: Finished difference. Result has 263 places, 356 transitions, 2136 flow [2024-11-10 14:29:12,838 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=2018, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2136, PETRI_PLACES=263, PETRI_TRANSITIONS=356} [2024-11-10 14:29:12,839 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 101 predicate places. [2024-11-10 14:29:12,840 INFO L471 AbstractCegarLoop]: Abstraction has has 263 places, 356 transitions, 2136 flow [2024-11-10 14:29:12,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-10 14:29:12,840 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:12,841 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 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, 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] [2024-11-10 14:29:12,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 14:29:12,841 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:29:12,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:12,842 INFO L85 PathProgramCache]: Analyzing trace with hash 17553645, now seen corresponding path program 2 times [2024-11-10 14:29:12,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:12,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830538349] [2024-11-10 14:29:12,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:12,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:13,329 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:13,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:13,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830538349] [2024-11-10 14:29:13,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830538349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:13,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:13,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:29:13,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365718580] [2024-11-10 14:29:13,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:13,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:29:13,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:13,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:29:13,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:29:14,275 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 165 [2024-11-10 14:29:14,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 356 transitions, 2136 flow. Second operand has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-10 14:29:14,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:14,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 165 [2024-11-10 14:29:14,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:15,988 INFO L124 PetriNetUnfolderBase]: 2043/7701 cut-off events. [2024-11-10 14:29:15,989 INFO L125 PetriNetUnfolderBase]: For 11011/11301 co-relation queries the response was YES. [2024-11-10 14:29:16,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22474 conditions, 7701 events. 2043/7701 cut-off events. For 11011/11301 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 69189 event pairs, 280 based on Foata normal form. 87/7733 useless extension candidates. Maximal degree in co-relation 22430. Up to 1204 conditions per place. [2024-11-10 14:29:16,065 INFO L140 encePairwiseOnDemand]: 151/165 looper letters, 107 selfloop transitions, 20 changer transitions 6/447 dead transitions. [2024-11-10 14:29:16,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 447 transitions, 2802 flow [2024-11-10 14:29:16,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:29:16,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:29:16,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1303 transitions. [2024-11-10 14:29:16,071 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8774410774410775 [2024-11-10 14:29:16,071 INFO L175 Difference]: Start difference. First operand has 263 places, 356 transitions, 2136 flow. Second operand 9 states and 1303 transitions. [2024-11-10 14:29:16,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 447 transitions, 2802 flow [2024-11-10 14:29:16,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 447 transitions, 2802 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:29:16,143 INFO L231 Difference]: Finished difference. Result has 278 places, 373 transitions, 2316 flow [2024-11-10 14:29:16,144 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=2136, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=339, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2316, PETRI_PLACES=278, PETRI_TRANSITIONS=373} [2024-11-10 14:29:16,144 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 116 predicate places. [2024-11-10 14:29:16,144 INFO L471 AbstractCegarLoop]: Abstraction has has 278 places, 373 transitions, 2316 flow [2024-11-10 14:29:16,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-10 14:29:16,145 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:16,145 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 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, 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] [2024-11-10 14:29:16,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 14:29:16,146 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:29:16,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:16,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1903725223, now seen corresponding path program 3 times [2024-11-10 14:29:16,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:16,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737016158] [2024-11-10 14:29:16,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:16,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:16,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:16,725 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:16,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:16,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737016158] [2024-11-10 14:29:16,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737016158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:16,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:16,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:29:16,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297262757] [2024-11-10 14:29:16,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:16,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:29:16,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:16,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:29:16,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:29:18,074 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 165 [2024-11-10 14:29:18,076 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 373 transitions, 2316 flow. Second operand has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-10 14:29:18,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:18,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 165 [2024-11-10 14:29:18,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:19,605 INFO L124 PetriNetUnfolderBase]: 2340/8746 cut-off events. [2024-11-10 14:29:19,606 INFO L125 PetriNetUnfolderBase]: For 14765/15187 co-relation queries the response was YES. [2024-11-10 14:29:19,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26882 conditions, 8746 events. 2340/8746 cut-off events. For 14765/15187 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 79843 event pairs, 290 based on Foata normal form. 95/8779 useless extension candidates. Maximal degree in co-relation 26830. Up to 1318 conditions per place. [2024-11-10 14:29:19,666 INFO L140 encePairwiseOnDemand]: 151/165 looper letters, 119 selfloop transitions, 22 changer transitions 2/457 dead transitions. [2024-11-10 14:29:19,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 457 transitions, 3100 flow [2024-11-10 14:29:19,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:29:19,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:29:19,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1308 transitions. [2024-11-10 14:29:19,669 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8808080808080808 [2024-11-10 14:29:19,669 INFO L175 Difference]: Start difference. First operand has 278 places, 373 transitions, 2316 flow. Second operand 9 states and 1308 transitions. [2024-11-10 14:29:19,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 457 transitions, 3100 flow [2024-11-10 14:29:19,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 457 transitions, 3062 flow, removed 19 selfloop flow, removed 0 redundant places. [2024-11-10 14:29:19,765 INFO L231 Difference]: Finished difference. Result has 291 places, 385 transitions, 2485 flow [2024-11-10 14:29:19,765 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=2302, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2485, PETRI_PLACES=291, PETRI_TRANSITIONS=385} [2024-11-10 14:29:19,766 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 129 predicate places. [2024-11-10 14:29:19,766 INFO L471 AbstractCegarLoop]: Abstraction has has 291 places, 385 transitions, 2485 flow [2024-11-10 14:29:19,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-10 14:29:19,767 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:19,767 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 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, 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] [2024-11-10 14:29:19,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 14:29:19,767 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:29:19,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:19,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1702366677, now seen corresponding path program 4 times [2024-11-10 14:29:19,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:19,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856654091] [2024-11-10 14:29:19,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:19,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:19,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:20,343 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:20,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:20,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856654091] [2024-11-10 14:29:20,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856654091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:20,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:20,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:29:20,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895890399] [2024-11-10 14:29:20,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:20,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:29:20,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:20,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:29:20,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:29:21,299 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 165 [2024-11-10 14:29:21,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 385 transitions, 2485 flow. Second operand has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-10 14:29:21,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:21,301 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 165 [2024-11-10 14:29:21,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:23,086 INFO L124 PetriNetUnfolderBase]: 2637/9748 cut-off events. [2024-11-10 14:29:23,087 INFO L125 PetriNetUnfolderBase]: For 18474/18950 co-relation queries the response was YES. [2024-11-10 14:29:23,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30670 conditions, 9748 events. 2637/9748 cut-off events. For 18474/18950 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 90960 event pairs, 301 based on Foata normal form. 109/9788 useless extension candidates. Maximal degree in co-relation 30612. Up to 1577 conditions per place. [2024-11-10 14:29:23,160 INFO L140 encePairwiseOnDemand]: 151/165 looper letters, 130 selfloop transitions, 27 changer transitions 4/475 dead transitions. [2024-11-10 14:29:23,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 475 transitions, 3434 flow [2024-11-10 14:29:23,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:29:23,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:29:23,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1308 transitions. [2024-11-10 14:29:23,163 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8808080808080808 [2024-11-10 14:29:23,163 INFO L175 Difference]: Start difference. First operand has 291 places, 385 transitions, 2485 flow. Second operand 9 states and 1308 transitions. [2024-11-10 14:29:23,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 475 transitions, 3434 flow [2024-11-10 14:29:23,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 475 transitions, 3355 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-10 14:29:23,274 INFO L231 Difference]: Finished difference. Result has 301 places, 397 transitions, 2661 flow [2024-11-10 14:29:23,274 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=2459, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2661, PETRI_PLACES=301, PETRI_TRANSITIONS=397} [2024-11-10 14:29:23,275 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 139 predicate places. [2024-11-10 14:29:23,275 INFO L471 AbstractCegarLoop]: Abstraction has has 301 places, 397 transitions, 2661 flow [2024-11-10 14:29:23,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-10 14:29:23,276 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:23,276 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 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, 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] [2024-11-10 14:29:23,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 14:29:23,277 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:29:23,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:23,278 INFO L85 PathProgramCache]: Analyzing trace with hash -997278203, now seen corresponding path program 5 times [2024-11-10 14:29:23,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:23,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001571033] [2024-11-10 14:29:23,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:23,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:23,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:23,822 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:23,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:23,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001571033] [2024-11-10 14:29:23,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001571033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:23,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:23,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:29:23,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078397431] [2024-11-10 14:29:23,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:23,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:29:23,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:23,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:29:23,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:29:24,732 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 165 [2024-11-10 14:29:24,733 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 397 transitions, 2661 flow. Second operand has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-10 14:29:24,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:24,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 165 [2024-11-10 14:29:24,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:27,084 INFO L124 PetriNetUnfolderBase]: 2967/10911 cut-off events. [2024-11-10 14:29:27,084 INFO L125 PetriNetUnfolderBase]: For 23461/24017 co-relation queries the response was YES. [2024-11-10 14:29:27,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35129 conditions, 10911 events. 2967/10911 cut-off events. For 23461/24017 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 104527 event pairs, 300 based on Foata normal form. 102/10922 useless extension candidates. Maximal degree in co-relation 35066. Up to 1708 conditions per place. [2024-11-10 14:29:27,159 INFO L140 encePairwiseOnDemand]: 151/165 looper letters, 134 selfloop transitions, 29 changer transitions 1/478 dead transitions. [2024-11-10 14:29:27,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 478 transitions, 3640 flow [2024-11-10 14:29:27,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:29:27,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:29:27,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1311 transitions. [2024-11-10 14:29:27,161 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8828282828282829 [2024-11-10 14:29:27,161 INFO L175 Difference]: Start difference. First operand has 301 places, 397 transitions, 2661 flow. Second operand 9 states and 1311 transitions. [2024-11-10 14:29:27,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 478 transitions, 3640 flow [2024-11-10 14:29:27,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 478 transitions, 3549 flow, removed 10 selfloop flow, removed 3 redundant places. [2024-11-10 14:29:27,302 INFO L231 Difference]: Finished difference. Result has 312 places, 412 transitions, 2899 flow [2024-11-10 14:29:27,302 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=2620, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=373, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2899, PETRI_PLACES=312, PETRI_TRANSITIONS=412} [2024-11-10 14:29:27,303 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 150 predicate places. [2024-11-10 14:29:27,303 INFO L471 AbstractCegarLoop]: Abstraction has has 312 places, 412 transitions, 2899 flow [2024-11-10 14:29:27,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-10 14:29:27,304 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:27,304 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 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, 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] [2024-11-10 14:29:27,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 14:29:27,305 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:29:27,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:27,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1505694603, now seen corresponding path program 6 times [2024-11-10 14:29:27,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:27,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376767366] [2024-11-10 14:29:27,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:27,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:27,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:27,648 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:27,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:27,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376767366] [2024-11-10 14:29:27,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376767366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:27,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:27,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:29:27,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889878717] [2024-11-10 14:29:27,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:27,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:29:27,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:27,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:29:27,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:29:28,533 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 165 [2024-11-10 14:29:28,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 412 transitions, 2899 flow. Second operand has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-10 14:29:28,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:28,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 165 [2024-11-10 14:29:28,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:30,892 INFO L124 PetriNetUnfolderBase]: 3289/12097 cut-off events. [2024-11-10 14:29:30,892 INFO L125 PetriNetUnfolderBase]: For 29639/30273 co-relation queries the response was YES. [2024-11-10 14:29:30,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39800 conditions, 12097 events. 3289/12097 cut-off events. For 29639/30273 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 119008 event pairs, 341 based on Foata normal form. 110/12121 useless extension candidates. Maximal degree in co-relation 39731. Up to 1963 conditions per place. [2024-11-10 14:29:30,988 INFO L140 encePairwiseOnDemand]: 151/165 looper letters, 148 selfloop transitions, 34 changer transitions 2/498 dead transitions. [2024-11-10 14:29:30,989 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 498 transitions, 4023 flow [2024-11-10 14:29:30,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:29:30,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:29:30,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1311 transitions. [2024-11-10 14:29:30,991 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8828282828282829 [2024-11-10 14:29:30,991 INFO L175 Difference]: Start difference. First operand has 312 places, 412 transitions, 2899 flow. Second operand 9 states and 1311 transitions. [2024-11-10 14:29:30,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 498 transitions, 4023 flow [2024-11-10 14:29:31,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 498 transitions, 3927 flow, removed 27 selfloop flow, removed 2 redundant places. [2024-11-10 14:29:31,173 INFO L231 Difference]: Finished difference. Result has 324 places, 427 transitions, 3142 flow [2024-11-10 14:29:31,173 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=2840, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=383, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3142, PETRI_PLACES=324, PETRI_TRANSITIONS=427} [2024-11-10 14:29:31,174 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 162 predicate places. [2024-11-10 14:29:31,174 INFO L471 AbstractCegarLoop]: Abstraction has has 324 places, 427 transitions, 3142 flow [2024-11-10 14:29:31,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-10 14:29:31,176 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:31,176 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 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, 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] [2024-11-10 14:29:31,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 14:29:31,176 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:29:31,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:31,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1321904129, now seen corresponding path program 7 times [2024-11-10 14:29:31,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:31,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457370145] [2024-11-10 14:29:31,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:31,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:31,616 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:31,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:31,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457370145] [2024-11-10 14:29:31,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457370145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:31,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:31,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:29:31,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923131548] [2024-11-10 14:29:31,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:31,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:29:31,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:31,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:29:31,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:29:32,500 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 165 [2024-11-10 14:29:32,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 427 transitions, 3142 flow. Second operand has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-10 14:29:32,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:32,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 165 [2024-11-10 14:29:32,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:35,142 INFO L124 PetriNetUnfolderBase]: 3633/13314 cut-off events. [2024-11-10 14:29:35,142 INFO L125 PetriNetUnfolderBase]: For 37928/38635 co-relation queries the response was YES. [2024-11-10 14:29:35,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45024 conditions, 13314 events. 3633/13314 cut-off events. For 37928/38635 co-relation queries the response was YES. Maximal size of possible extension queue 413. Compared 133856 event pairs, 416 based on Foata normal form. 99/13303 useless extension candidates. Maximal degree in co-relation 44949. Up to 2114 conditions per place. [2024-11-10 14:29:35,232 INFO L140 encePairwiseOnDemand]: 151/165 looper letters, 148 selfloop transitions, 36 changer transitions 0/498 dead transitions. [2024-11-10 14:29:35,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 498 transitions, 4239 flow [2024-11-10 14:29:35,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:29:35,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:29:35,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1313 transitions. [2024-11-10 14:29:35,234 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8841750841750842 [2024-11-10 14:29:35,234 INFO L175 Difference]: Start difference. First operand has 324 places, 427 transitions, 3142 flow. Second operand 9 states and 1313 transitions. [2024-11-10 14:29:35,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 498 transitions, 4239 flow [2024-11-10 14:29:35,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 498 transitions, 4139 flow, removed 26 selfloop flow, removed 2 redundant places. [2024-11-10 14:29:35,420 INFO L231 Difference]: Finished difference. Result has 337 places, 446 transitions, 3492 flow [2024-11-10 14:29:35,420 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=3064, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=397, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3492, PETRI_PLACES=337, PETRI_TRANSITIONS=446} [2024-11-10 14:29:35,421 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 175 predicate places. [2024-11-10 14:29:35,421 INFO L471 AbstractCegarLoop]: Abstraction has has 337 places, 446 transitions, 3492 flow [2024-11-10 14:29:35,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-10 14:29:35,421 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:35,421 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 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, 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] [2024-11-10 14:29:35,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 14:29:35,422 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:29:35,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:35,422 INFO L85 PathProgramCache]: Analyzing trace with hash 975448239, now seen corresponding path program 8 times [2024-11-10 14:29:35,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:35,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170715999] [2024-11-10 14:29:35,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:35,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:35,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:35,839 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:35,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:35,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170715999] [2024-11-10 14:29:35,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170715999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:35,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:35,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:29:35,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89285844] [2024-11-10 14:29:35,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:35,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:29:35,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:35,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:29:35,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:29:36,316 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 165 [2024-11-10 14:29:36,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 446 transitions, 3492 flow. Second operand has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-10 14:29:36,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:36,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 165 [2024-11-10 14:29:36,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:39,237 INFO L124 PetriNetUnfolderBase]: 4229/15326 cut-off events. [2024-11-10 14:29:39,237 INFO L125 PetriNetUnfolderBase]: For 49068/49909 co-relation queries the response was YES. [2024-11-10 14:29:39,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52867 conditions, 15326 events. 4229/15326 cut-off events. For 49068/49909 co-relation queries the response was YES. Maximal size of possible extension queue 537. Compared 159917 event pairs, 429 based on Foata normal form. 128/15338 useless extension candidates. Maximal degree in co-relation 52785. Up to 2514 conditions per place. [2024-11-10 14:29:39,351 INFO L140 encePairwiseOnDemand]: 150/165 looper letters, 169 selfloop transitions, 45 changer transitions 0/528 dead transitions. [2024-11-10 14:29:39,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 528 transitions, 4795 flow [2024-11-10 14:29:39,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:29:39,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:29:39,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1315 transitions. [2024-11-10 14:29:39,353 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8855218855218855 [2024-11-10 14:29:39,353 INFO L175 Difference]: Start difference. First operand has 337 places, 446 transitions, 3492 flow. Second operand 9 states and 1315 transitions. [2024-11-10 14:29:39,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 528 transitions, 4795 flow [2024-11-10 14:29:39,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 528 transitions, 4691 flow, removed 52 selfloop flow, removed 0 redundant places. [2024-11-10 14:29:39,577 INFO L231 Difference]: Finished difference. Result has 352 places, 464 transitions, 3844 flow [2024-11-10 14:29:39,577 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=3388, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=446, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3844, PETRI_PLACES=352, PETRI_TRANSITIONS=464} [2024-11-10 14:29:39,578 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 190 predicate places. [2024-11-10 14:29:39,578 INFO L471 AbstractCegarLoop]: Abstraction has has 352 places, 464 transitions, 3844 flow [2024-11-10 14:29:39,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-10 14:29:39,578 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:39,579 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 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, 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] [2024-11-10 14:29:39,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 14:29:39,579 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:29:39,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:39,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1974693423, now seen corresponding path program 9 times [2024-11-10 14:29:39,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:39,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288986303] [2024-11-10 14:29:39,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:39,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:39,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:40,206 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:40,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:40,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288986303] [2024-11-10 14:29:40,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288986303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:40,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:40,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:29:40,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167912014] [2024-11-10 14:29:40,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:40,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:29:40,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:40,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:29:40,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:29:40,892 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 165 [2024-11-10 14:29:40,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 464 transitions, 3844 flow. Second operand has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-10 14:29:40,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:40,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 165 [2024-11-10 14:29:40,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:44,297 INFO L124 PetriNetUnfolderBase]: 4819/17317 cut-off events. [2024-11-10 14:29:44,297 INFO L125 PetriNetUnfolderBase]: For 60864/61824 co-relation queries the response was YES. [2024-11-10 14:29:44,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61001 conditions, 17317 events. 4819/17317 cut-off events. For 60864/61824 co-relation queries the response was YES. Maximal size of possible extension queue 662. Compared 186357 event pairs, 472 based on Foata normal form. 146/17324 useless extension candidates. Maximal degree in co-relation 60911. Up to 2855 conditions per place. [2024-11-10 14:29:44,463 INFO L140 encePairwiseOnDemand]: 150/165 looper letters, 184 selfloop transitions, 46 changer transitions 0/544 dead transitions. [2024-11-10 14:29:44,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 544 transitions, 5102 flow [2024-11-10 14:29:44,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:29:44,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:29:44,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1315 transitions. [2024-11-10 14:29:44,465 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8855218855218855 [2024-11-10 14:29:44,466 INFO L175 Difference]: Start difference. First operand has 352 places, 464 transitions, 3844 flow. Second operand 9 states and 1315 transitions. [2024-11-10 14:29:44,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 544 transitions, 5102 flow [2024-11-10 14:29:44,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 544 transitions, 5016 flow, removed 43 selfloop flow, removed 0 redundant places. [2024-11-10 14:29:44,821 INFO L231 Difference]: Finished difference. Result has 366 places, 481 transitions, 4167 flow [2024-11-10 14:29:44,821 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=3758, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4167, PETRI_PLACES=366, PETRI_TRANSITIONS=481} [2024-11-10 14:29:44,821 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 204 predicate places. [2024-11-10 14:29:44,822 INFO L471 AbstractCegarLoop]: Abstraction has has 366 places, 481 transitions, 4167 flow [2024-11-10 14:29:44,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-10 14:29:44,822 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:44,823 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 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, 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] [2024-11-10 14:29:44,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 14:29:44,823 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:29:44,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:44,823 INFO L85 PathProgramCache]: Analyzing trace with hash -232371997, now seen corresponding path program 10 times [2024-11-10 14:29:44,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:44,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050622353] [2024-11-10 14:29:44,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:44,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:44,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:45,263 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:45,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:45,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050622353] [2024-11-10 14:29:45,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050622353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:45,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:45,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:29:45,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399149383] [2024-11-10 14:29:45,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:45,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:29:45,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:45,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:29:45,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:29:46,112 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 165 [2024-11-10 14:29:46,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 481 transitions, 4167 flow. Second operand has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-10 14:29:46,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:46,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 165 [2024-11-10 14:29:46,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:49,945 INFO L124 PetriNetUnfolderBase]: 5107/18237 cut-off events. [2024-11-10 14:29:49,945 INFO L125 PetriNetUnfolderBase]: For 68972/70005 co-relation queries the response was YES. [2024-11-10 14:29:50,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65146 conditions, 18237 events. 5107/18237 cut-off events. For 68972/70005 co-relation queries the response was YES. Maximal size of possible extension queue 725. Compared 198912 event pairs, 498 based on Foata normal form. 164/18255 useless extension candidates. Maximal degree in co-relation 65049. Up to 3036 conditions per place. [2024-11-10 14:29:50,139 INFO L140 encePairwiseOnDemand]: 149/165 looper letters, 183 selfloop transitions, 53 changer transitions 0/550 dead transitions. [2024-11-10 14:29:50,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 550 transitions, 5469 flow [2024-11-10 14:29:50,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:29:50,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:29:50,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1317 transitions. [2024-11-10 14:29:50,141 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8868686868686869 [2024-11-10 14:29:50,141 INFO L175 Difference]: Start difference. First operand has 366 places, 481 transitions, 4167 flow. Second operand 9 states and 1317 transitions. [2024-11-10 14:29:50,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 374 places, 550 transitions, 5469 flow [2024-11-10 14:29:50,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 550 transitions, 5316 flow, removed 57 selfloop flow, removed 2 redundant places. [2024-11-10 14:29:50,551 INFO L231 Difference]: Finished difference. Result has 376 places, 495 transitions, 4446 flow [2024-11-10 14:29:50,551 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=4070, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=481, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4446, PETRI_PLACES=376, PETRI_TRANSITIONS=495} [2024-11-10 14:29:50,552 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 214 predicate places. [2024-11-10 14:29:50,552 INFO L471 AbstractCegarLoop]: Abstraction has has 376 places, 495 transitions, 4446 flow [2024-11-10 14:29:50,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-10 14:29:50,552 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:50,553 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 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, 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] [2024-11-10 14:29:50,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-10 14:29:50,553 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:29:50,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:50,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1802100499, now seen corresponding path program 11 times [2024-11-10 14:29:50,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:50,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92623354] [2024-11-10 14:29:50,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:50,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:50,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:51,146 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:51,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:51,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92623354] [2024-11-10 14:29:51,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92623354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:51,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:51,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:29:51,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119846841] [2024-11-10 14:29:51,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:51,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:29:51,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:51,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:29:51,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:29:51,713 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 165 [2024-11-10 14:29:51,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 495 transitions, 4446 flow. Second operand has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-10 14:29:51,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:51,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 165 [2024-11-10 14:29:51,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:55,458 INFO L124 PetriNetUnfolderBase]: 5111/18284 cut-off events. [2024-11-10 14:29:55,459 INFO L125 PetriNetUnfolderBase]: For 73944/75089 co-relation queries the response was YES. [2024-11-10 14:29:55,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65998 conditions, 18284 events. 5111/18284 cut-off events. For 73944/75089 co-relation queries the response was YES. Maximal size of possible extension queue 725. Compared 199656 event pairs, 506 based on Foata normal form. 171/18315 useless extension candidates. Maximal degree in co-relation 65897. Up to 3047 conditions per place. [2024-11-10 14:29:55,943 INFO L140 encePairwiseOnDemand]: 150/165 looper letters, 186 selfloop transitions, 57 changer transitions 0/557 dead transitions. [2024-11-10 14:29:55,943 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 384 places, 557 transitions, 5672 flow [2024-11-10 14:29:55,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:29:55,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:29:55,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1318 transitions. [2024-11-10 14:29:55,944 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8875420875420875 [2024-11-10 14:29:55,944 INFO L175 Difference]: Start difference. First operand has 376 places, 495 transitions, 4446 flow. Second operand 9 states and 1318 transitions. [2024-11-10 14:29:55,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 384 places, 557 transitions, 5672 flow [2024-11-10 14:29:56,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 557 transitions, 5512 flow, removed 39 selfloop flow, removed 4 redundant places. [2024-11-10 14:29:56,294 INFO L231 Difference]: Finished difference. Result has 385 places, 507 transitions, 4716 flow [2024-11-10 14:29:56,294 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=4310, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=495, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4716, PETRI_PLACES=385, PETRI_TRANSITIONS=507} [2024-11-10 14:29:56,295 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 223 predicate places. [2024-11-10 14:29:56,295 INFO L471 AbstractCegarLoop]: Abstraction has has 385 places, 507 transitions, 4716 flow [2024-11-10 14:29:56,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-10 14:29:56,295 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:56,296 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 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, 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] [2024-11-10 14:29:56,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-10 14:29:56,296 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:29:56,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:56,296 INFO L85 PathProgramCache]: Analyzing trace with hash -2092501853, now seen corresponding path program 12 times [2024-11-10 14:29:56,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:56,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133740160] [2024-11-10 14:29:56,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:56,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:56,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:56,626 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:29:56,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:56,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133740160] [2024-11-10 14:29:56,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133740160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:56,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:56,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:29:56,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651550183] [2024-11-10 14:29:56,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:56,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:29:56,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:56,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:29:56,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:29:57,179 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 165 [2024-11-10 14:29:57,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 507 transitions, 4716 flow. Second operand has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-10 14:29:57,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:57,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 165 [2024-11-10 14:29:57,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:30:01,347 INFO L124 PetriNetUnfolderBase]: 5107/18257 cut-off events. [2024-11-10 14:30:01,347 INFO L125 PetriNetUnfolderBase]: For 77849/79015 co-relation queries the response was YES. [2024-11-10 14:30:01,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66374 conditions, 18257 events. 5107/18257 cut-off events. For 77849/79015 co-relation queries the response was YES. Maximal size of possible extension queue 725. Compared 199137 event pairs, 499 based on Foata normal form. 167/18273 useless extension candidates. Maximal degree in co-relation 66268. Up to 3041 conditions per place. [2024-11-10 14:30:01,499 INFO L140 encePairwiseOnDemand]: 150/165 looper letters, 198 selfloop transitions, 52 changer transitions 0/564 dead transitions. [2024-11-10 14:30:01,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 564 transitions, 5920 flow [2024-11-10 14:30:01,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:30:01,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:30:01,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1321 transitions. [2024-11-10 14:30:01,501 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8895622895622896 [2024-11-10 14:30:01,501 INFO L175 Difference]: Start difference. First operand has 385 places, 507 transitions, 4716 flow. Second operand 9 states and 1321 transitions. [2024-11-10 14:30:01,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 564 transitions, 5920 flow [2024-11-10 14:30:01,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 564 transitions, 5710 flow, removed 75 selfloop flow, removed 3 redundant places. [2024-11-10 14:30:01,893 INFO L231 Difference]: Finished difference. Result has 394 places, 515 transitions, 4854 flow [2024-11-10 14:30:01,893 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=4580, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=507, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4854, PETRI_PLACES=394, PETRI_TRANSITIONS=515} [2024-11-10 14:30:01,893 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 232 predicate places. [2024-11-10 14:30:01,894 INFO L471 AbstractCegarLoop]: Abstraction has has 394 places, 515 transitions, 4854 flow [2024-11-10 14:30:01,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-10 14:30:01,894 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:30:01,894 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 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, 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] [2024-11-10 14:30:01,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-10 14:30:01,895 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:30:01,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:30:01,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1147119081, now seen corresponding path program 13 times [2024-11-10 14:30:01,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:30:01,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016121019] [2024-11-10 14:30:01,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:30:01,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:30:01,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:30:02,167 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-10 14:30:02,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:30:02,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016121019] [2024-11-10 14:30:02,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016121019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:30:02,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:30:02,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 14:30:02,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779263440] [2024-11-10 14:30:02,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:30:02,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 14:30:02,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:30:02,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 14:30:02,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:30:02,781 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 165 [2024-11-10 14:30:02,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 515 transitions, 4854 flow. Second operand has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-10 14:30:02,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:30:02,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 165 [2024-11-10 14:30:02,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand