./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_51-mutexptr_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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/28-race_reach_51-mutexptr_racefree.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 f222d5749b9bb10b4d4c09b2c40e45ee19dec77732a8593ce917652e8ca8a43e --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 22:02:10,881 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 22:02:10,934 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-08 22:02:10,943 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 22:02:10,944 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 22:02:10,966 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 22:02:10,967 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 22:02:10,967 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 22:02:10,967 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 22:02:10,967 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 22:02:10,967 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 22:02:10,967 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 22:02:10,967 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 22:02:10,968 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 22:02:10,968 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 22:02:10,968 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 22:02:10,968 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 22:02:10,968 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 22:02:10,968 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 22:02:10,968 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 22:02:10,968 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 22:02:10,968 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 22:02:10,968 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-08 22:02:10,968 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 22:02:10,968 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 22:02:10,968 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 22:02:10,968 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 22:02:10,968 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 22:02:10,968 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 22:02:10,968 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 22:02:10,969 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 22:02:10,969 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:02:10,969 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 22:02:10,969 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 22:02:10,969 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 22:02:10,969 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 22:02:10,969 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 22:02:10,969 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 22:02:10,969 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 22:02:10,969 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 22:02:10,969 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 22:02:10,969 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 22:02:10,969 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> f222d5749b9bb10b4d4c09b2c40e45ee19dec77732a8593ce917652e8ca8a43e [2025-03-08 22:02:11,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 22:02:11,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 22:02:11,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 22:02:11,186 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 22:02:11,187 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 22:02:11,187 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_51-mutexptr_racefree.i [2025-03-08 22:02:12,284 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45e1326d3/5b7c40ab13104f27a125c79beae8ec51/FLAGc9929da07 [2025-03-08 22:02:12,549 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 22:02:12,550 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_51-mutexptr_racefree.i [2025-03-08 22:02:12,566 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45e1326d3/5b7c40ab13104f27a125c79beae8ec51/FLAGc9929da07 [2025-03-08 22:02:12,582 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45e1326d3/5b7c40ab13104f27a125c79beae8ec51 [2025-03-08 22:02:12,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 22:02:12,586 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 22:02:12,587 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 22:02:12,587 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 22:02:12,590 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 22:02:12,590 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:02:12" (1/1) ... [2025-03-08 22:02:12,591 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48dace18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:02:12, skipping insertion in model container [2025-03-08 22:02:12,591 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:02:12" (1/1) ... [2025-03-08 22:02:12,613 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 22:02:12,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:02:12,799 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 22:02:12,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:02:12,858 INFO L204 MainTranslator]: Completed translation [2025-03-08 22:02:12,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:02:12 WrapperNode [2025-03-08 22:02:12,858 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 22:02:12,860 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 22:02:12,860 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 22:02:12,860 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 22:02:12,864 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:02:12" (1/1) ... [2025-03-08 22:02:12,877 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:02:12" (1/1) ... [2025-03-08 22:02:12,900 INFO L138 Inliner]: procedures = 171, calls = 43, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 160 [2025-03-08 22:02:12,901 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 22:02:12,901 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 22:02:12,901 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 22:02:12,901 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 22:02:12,911 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:02:12" (1/1) ... [2025-03-08 22:02:12,913 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:02:12" (1/1) ... [2025-03-08 22:02:12,916 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:02:12" (1/1) ... [2025-03-08 22:02:12,916 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:02:12" (1/1) ... [2025-03-08 22:02:12,930 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:02:12" (1/1) ... [2025-03-08 22:02:12,931 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:02:12" (1/1) ... [2025-03-08 22:02:12,936 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:02:12" (1/1) ... [2025-03-08 22:02:12,937 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:02:12" (1/1) ... [2025-03-08 22:02:12,939 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 22:02:12,943 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 22:02:12,943 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 22:02:12,943 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 22:02:12,944 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:02:12" (1/1) ... [2025-03-08 22:02:12,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:02:12,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:02:12,979 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) [2025-03-08 22:02:12,981 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 [2025-03-08 22:02:13,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-08 22:02:13,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-08 22:02:13,002 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-08 22:02:13,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 22:02:13,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 22:02:13,002 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-08 22:02:13,003 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-08 22:02:13,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 22:02:13,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-08 22:02:13,003 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-08 22:02:13,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 22:02:13,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 22:02:13,005 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-08 22:02:13,126 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 22:02:13,128 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 22:02:13,349 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L713: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2025-03-08 22:02:13,349 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L713-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2025-03-08 22:02:13,426 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-08 22:02:13,427 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 22:02:13,462 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 22:02:13,462 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 22:02:13,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:02:13 BoogieIcfgContainer [2025-03-08 22:02:13,463 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 22:02:13,466 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 22:02:13,466 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 22:02:13,469 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 22:02:13,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 10:02:12" (1/3) ... [2025-03-08 22:02:13,470 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6354106f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:02:13, skipping insertion in model container [2025-03-08 22:02:13,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:02:12" (2/3) ... [2025-03-08 22:02:13,471 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6354106f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:02:13, skipping insertion in model container [2025-03-08 22:02:13,471 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:02:13" (3/3) ... [2025-03-08 22:02:13,472 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_51-mutexptr_racefree.i [2025-03-08 22:02:13,484 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 22:02:13,485 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_51-mutexptr_racefree.i that has 2 procedures, 236 locations, 1 initial locations, 5 loop locations, and 14 error locations. [2025-03-08 22:02:13,486 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-08 22:02:13,547 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-08 22:02:13,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 239 places, 247 transitions, 501 flow [2025-03-08 22:02:13,697 INFO L124 PetriNetUnfolderBase]: 15/319 cut-off events. [2025-03-08 22:02:13,700 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-08 22:02:13,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324 conditions, 319 events. 15/319 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 876 event pairs, 0 based on Foata normal form. 0/281 useless extension candidates. Maximal degree in co-relation 164. Up to 4 conditions per place. [2025-03-08 22:02:13,707 INFO L82 GeneralOperation]: Start removeDead. Operand has 239 places, 247 transitions, 501 flow [2025-03-08 22:02:13,713 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 239 places, 247 transitions, 501 flow [2025-03-08 22:02:13,720 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 22:02:13,732 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;@4ef522dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 22:02:13,735 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2025-03-08 22:02:13,751 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-08 22:02:13,752 INFO L124 PetriNetUnfolderBase]: 0/88 cut-off events. [2025-03-08 22:02:13,752 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 22:02:13,752 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:02:13,752 INFO L206 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] [2025-03-08 22:02:13,753 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2025-03-08 22:02:13,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:02:13,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1738927929, now seen corresponding path program 1 times [2025-03-08 22:02:13,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:02:13,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357143043] [2025-03-08 22:02:13,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:02:13,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:02:13,850 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-03-08 22:02:13,880 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-03-08 22:02:13,883 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:02:13,883 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:02:14,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:02:14,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:02:14,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357143043] [2025-03-08 22:02:14,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357143043] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:02:14,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:02:14,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:02:14,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713111264] [2025-03-08 22:02:14,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:02:14,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:02:14,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:02:14,081 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:02:14,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:02:14,131 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 247 [2025-03-08 22:02:14,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 247 transitions, 501 flow. Second operand has 3 states, 3 states have (on average 212.33333333333334) internal successors, (637), 3 states have internal predecessors, (637), 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) [2025-03-08 22:02:14,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:02:14,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 247 [2025-03-08 22:02:14,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:02:14,297 INFO L124 PetriNetUnfolderBase]: 73/892 cut-off events. [2025-03-08 22:02:14,297 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-08 22:02:14,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1074 conditions, 892 events. 73/892 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4402 event pairs, 72 based on Foata normal form. 52/856 useless extension candidates. Maximal degree in co-relation 890. Up to 175 conditions per place. [2025-03-08 22:02:14,303 INFO L140 encePairwiseOnDemand]: 234/247 looper letters, 22 selfloop transitions, 2 changer transitions 0/234 dead transitions. [2025-03-08 22:02:14,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 234 transitions, 523 flow [2025-03-08 22:02:14,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:02:14,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:02:14,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 668 transitions. [2025-03-08 22:02:14,316 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9014844804318488 [2025-03-08 22:02:14,318 INFO L175 Difference]: Start difference. First operand has 239 places, 247 transitions, 501 flow. Second operand 3 states and 668 transitions. [2025-03-08 22:02:14,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 234 transitions, 523 flow [2025-03-08 22:02:14,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 234 transitions, 523 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-08 22:02:14,326 INFO L231 Difference]: Finished difference. Result has 238 places, 234 transitions, 479 flow [2025-03-08 22:02:14,327 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=475, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=479, PETRI_PLACES=238, PETRI_TRANSITIONS=234} [2025-03-08 22:02:14,330 INFO L279 CegarLoopForPetriNet]: 239 programPoint places, -1 predicate places. [2025-03-08 22:02:14,330 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 234 transitions, 479 flow [2025-03-08 22:02:14,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 212.33333333333334) internal successors, (637), 3 states have internal predecessors, (637), 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) [2025-03-08 22:02:14,330 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:02:14,330 INFO L206 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, 1, 1, 1] [2025-03-08 22:02:14,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 22:02:14,331 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2025-03-08 22:02:14,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:02:14,332 INFO L85 PathProgramCache]: Analyzing trace with hash 707777460, now seen corresponding path program 1 times [2025-03-08 22:02:14,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:02:14,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705944713] [2025-03-08 22:02:14,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:02:14,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:02:14,345 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-03-08 22:02:14,362 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-03-08 22:02:14,364 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:02:14,364 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:02:14,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:02:14,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:02:14,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705944713] [2025-03-08 22:02:14,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705944713] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:02:14,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:02:14,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 22:02:14,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709155925] [2025-03-08 22:02:14,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:02:14,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:02:14,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:02:14,472 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:02:14,472 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:02:14,497 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 247 [2025-03-08 22:02:14,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 234 transitions, 479 flow. Second operand has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:02:14,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:02:14,499 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 247 [2025-03-08 22:02:14,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:02:14,590 INFO L124 PetriNetUnfolderBase]: 48/723 cut-off events. [2025-03-08 22:02:14,590 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-08 22:02:14,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 847 conditions, 723 events. 48/723 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3140 event pairs, 0 based on Foata normal form. 1/646 useless extension candidates. Maximal degree in co-relation 751. Up to 108 conditions per place. [2025-03-08 22:02:14,594 INFO L140 encePairwiseOnDemand]: 244/247 looper letters, 22 selfloop transitions, 2 changer transitions 0/240 dead transitions. [2025-03-08 22:02:14,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 240 transitions, 539 flow [2025-03-08 22:02:14,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:02:14,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:02:14,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 679 transitions. [2025-03-08 22:02:14,597 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9163292847503374 [2025-03-08 22:02:14,597 INFO L175 Difference]: Start difference. First operand has 238 places, 234 transitions, 479 flow. Second operand 3 states and 679 transitions. [2025-03-08 22:02:14,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 240 transitions, 539 flow [2025-03-08 22:02:14,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 240 transitions, 535 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 22:02:14,605 INFO L231 Difference]: Finished difference. Result has 239 places, 234 transitions, 483 flow [2025-03-08 22:02:14,606 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=475, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=483, PETRI_PLACES=239, PETRI_TRANSITIONS=234} [2025-03-08 22:02:14,607 INFO L279 CegarLoopForPetriNet]: 239 programPoint places, 0 predicate places. [2025-03-08 22:02:14,607 INFO L471 AbstractCegarLoop]: Abstraction has has 239 places, 234 transitions, 483 flow [2025-03-08 22:02:14,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:02:14,608 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:02:14,608 INFO L206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:02:14,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 22:02:14,608 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2025-03-08 22:02:14,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:02:14,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1818163820, now seen corresponding path program 1 times [2025-03-08 22:02:14,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:02:14,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43596406] [2025-03-08 22:02:14,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:02:14,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:02:14,632 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-03-08 22:02:14,657 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-03-08 22:02:14,658 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:02:14,658 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:02:15,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:02:15,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:02:15,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43596406] [2025-03-08 22:02:15,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43596406] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:02:15,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:02:15,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:02:15,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148206422] [2025-03-08 22:02:15,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:02:15,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:02:15,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:02:15,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:02:15,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:02:15,395 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 247 [2025-03-08 22:02:15,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 234 transitions, 483 flow. Second operand has 6 states, 6 states have (on average 187.5) internal successors, (1125), 6 states have internal predecessors, (1125), 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) [2025-03-08 22:02:15,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:02:15,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 247 [2025-03-08 22:02:15,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:02:15,799 INFO L124 PetriNetUnfolderBase]: 578/2380 cut-off events. [2025-03-08 22:02:15,800 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2025-03-08 22:02:15,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3679 conditions, 2380 events. 578/2380 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 16562 event pairs, 372 based on Foata normal form. 0/2162 useless extension candidates. Maximal degree in co-relation 3509. Up to 1071 conditions per place. [2025-03-08 22:02:15,808 INFO L140 encePairwiseOnDemand]: 224/247 looper letters, 73 selfloop transitions, 70 changer transitions 0/327 dead transitions. [2025-03-08 22:02:15,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 327 transitions, 958 flow [2025-03-08 22:02:15,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:02:15,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:02:15,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1260 transitions. [2025-03-08 22:02:15,811 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8502024291497976 [2025-03-08 22:02:15,811 INFO L175 Difference]: Start difference. First operand has 239 places, 234 transitions, 483 flow. Second operand 6 states and 1260 transitions. [2025-03-08 22:02:15,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 327 transitions, 958 flow [2025-03-08 22:02:15,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 327 transitions, 952 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 22:02:15,817 INFO L231 Difference]: Finished difference. Result has 247 places, 303 transitions, 942 flow [2025-03-08 22:02:15,818 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=479, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=942, PETRI_PLACES=247, PETRI_TRANSITIONS=303} [2025-03-08 22:02:15,818 INFO L279 CegarLoopForPetriNet]: 239 programPoint places, 8 predicate places. [2025-03-08 22:02:15,819 INFO L471 AbstractCegarLoop]: Abstraction has has 247 places, 303 transitions, 942 flow [2025-03-08 22:02:15,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 187.5) internal successors, (1125), 6 states have internal predecessors, (1125), 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) [2025-03-08 22:02:15,820 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:02:15,820 INFO L206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:02:15,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 22:02:15,820 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2025-03-08 22:02:15,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:02:15,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1516740917, now seen corresponding path program 1 times [2025-03-08 22:02:15,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:02:15,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131946325] [2025-03-08 22:02:15,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:02:15,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:02:15,842 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-03-08 22:02:15,848 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-03-08 22:02:15,850 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:02:15,850 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:02:15,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:02:15,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:02:15,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131946325] [2025-03-08 22:02:15,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131946325] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:02:15,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:02:15,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:02:15,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406490952] [2025-03-08 22:02:15,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:02:15,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:02:15,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:02:15,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:02:15,891 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:02:15,912 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 247 [2025-03-08 22:02:15,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 303 transitions, 942 flow. Second operand has 3 states, 3 states have (on average 206.33333333333334) internal successors, (619), 3 states have internal predecessors, (619), 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) [2025-03-08 22:02:15,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:02:15,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 247 [2025-03-08 22:02:15,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:02:16,076 INFO L124 PetriNetUnfolderBase]: 215/1559 cut-off events. [2025-03-08 22:02:16,076 INFO L125 PetriNetUnfolderBase]: For 105/130 co-relation queries the response was YES. [2025-03-08 22:02:16,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2392 conditions, 1559 events. 215/1559 cut-off events. For 105/130 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 10347 event pairs, 110 based on Foata normal form. 0/1457 useless extension candidates. Maximal degree in co-relation 2229. Up to 299 conditions per place. [2025-03-08 22:02:16,085 INFO L140 encePairwiseOnDemand]: 239/247 looper letters, 25 selfloop transitions, 2 changer transitions 0/299 dead transitions. [2025-03-08 22:02:16,085 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 299 transitions, 988 flow [2025-03-08 22:02:16,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:02:16,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:02:16,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 648 transitions. [2025-03-08 22:02:16,087 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8744939271255061 [2025-03-08 22:02:16,087 INFO L175 Difference]: Start difference. First operand has 247 places, 303 transitions, 942 flow. Second operand 3 states and 648 transitions. [2025-03-08 22:02:16,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 299 transitions, 988 flow [2025-03-08 22:02:16,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 299 transitions, 988 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-08 22:02:16,096 INFO L231 Difference]: Finished difference. Result has 244 places, 299 transitions, 944 flow [2025-03-08 22:02:16,097 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=930, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=944, PETRI_PLACES=244, PETRI_TRANSITIONS=299} [2025-03-08 22:02:16,098 INFO L279 CegarLoopForPetriNet]: 239 programPoint places, 5 predicate places. [2025-03-08 22:02:16,098 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 299 transitions, 944 flow [2025-03-08 22:02:16,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 206.33333333333334) internal successors, (619), 3 states have internal predecessors, (619), 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) [2025-03-08 22:02:16,099 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:02:16,099 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:02:16,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 22:02:16,099 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2025-03-08 22:02:16,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:02:16,100 INFO L85 PathProgramCache]: Analyzing trace with hash -411368458, now seen corresponding path program 1 times [2025-03-08 22:02:16,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:02:16,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246945882] [2025-03-08 22:02:16,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:02:16,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:02:16,121 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-03-08 22:02:16,136 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-03-08 22:02:16,136 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:02:16,136 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 22:02:16,136 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-08 22:02:16,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-03-08 22:02:16,153 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-03-08 22:02:16,153 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:02:16,153 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 22:02:16,187 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-08 22:02:16,187 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-08 22:02:16,188 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2025-03-08 22:02:16,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2025-03-08 22:02:16,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2025-03-08 22:02:16,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2025-03-08 22:02:16,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2025-03-08 22:02:16,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2025-03-08 22:02:16,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2025-03-08 22:02:16,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2025-03-08 22:02:16,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2025-03-08 22:02:16,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2025-03-08 22:02:16,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2025-03-08 22:02:16,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2025-03-08 22:02:16,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2025-03-08 22:02:16,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2025-03-08 22:02:16,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2025-03-08 22:02:16,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2025-03-08 22:02:16,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2025-03-08 22:02:16,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2025-03-08 22:02:16,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2025-03-08 22:02:16,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2025-03-08 22:02:16,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2025-03-08 22:02:16,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2025-03-08 22:02:16,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 22:02:16,190 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-03-08 22:02:16,192 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-08 22:02:16,192 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-08 22:02:16,218 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-08 22:02:16,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 310 places, 323 transitions, 662 flow [2025-03-08 22:02:16,277 INFO L124 PetriNetUnfolderBase]: 27/494 cut-off events. [2025-03-08 22:02:16,278 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-03-08 22:02:16,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 506 conditions, 494 events. 27/494 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1787 event pairs, 0 based on Foata normal form. 0/429 useless extension candidates. Maximal degree in co-relation 321. Up to 6 conditions per place. [2025-03-08 22:02:16,281 INFO L82 GeneralOperation]: Start removeDead. Operand has 310 places, 323 transitions, 662 flow [2025-03-08 22:02:16,284 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 310 places, 323 transitions, 662 flow [2025-03-08 22:02:16,285 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 22:02:16,286 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;@4ef522dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 22:02:16,286 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2025-03-08 22:02:16,292 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-08 22:02:16,292 INFO L124 PetriNetUnfolderBase]: 0/88 cut-off events. [2025-03-08 22:02:16,292 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 22:02:16,292 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:02:16,293 INFO L206 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] [2025-03-08 22:02:16,293 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2025-03-08 22:02:16,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:02:16,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1408028743, now seen corresponding path program 1 times [2025-03-08 22:02:16,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:02:16,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098857348] [2025-03-08 22:02:16,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:02:16,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:02:16,307 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-03-08 22:02:16,313 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-03-08 22:02:16,313 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:02:16,313 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:02:16,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:02:16,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:02:16,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098857348] [2025-03-08 22:02:16,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098857348] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:02:16,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:02:16,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:02:16,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933570921] [2025-03-08 22:02:16,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:02:16,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:02:16,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:02:16,339 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:02:16,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:02:16,373 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 323 [2025-03-08 22:02:16,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 323 transitions, 662 flow. Second operand has 3 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:02:16,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:02:16,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 323 [2025-03-08 22:02:16,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:02:17,426 INFO L124 PetriNetUnfolderBase]: 1642/9284 cut-off events. [2025-03-08 22:02:17,427 INFO L125 PetriNetUnfolderBase]: For 101/101 co-relation queries the response was YES. [2025-03-08 22:02:17,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12017 conditions, 9284 events. 1642/9284 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 96285 event pairs, 1629 based on Foata normal form. 879/9240 useless extension candidates. Maximal degree in co-relation 10673. Up to 2673 conditions per place. [2025-03-08 22:02:17,469 INFO L140 encePairwiseOnDemand]: 304/323 looper letters, 33 selfloop transitions, 2 changer transitions 0/304 dead transitions. [2025-03-08 22:02:17,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 304 transitions, 694 flow [2025-03-08 22:02:17,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:02:17,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:02:17,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 862 transitions. [2025-03-08 22:02:17,471 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8895768833849329 [2025-03-08 22:02:17,471 INFO L175 Difference]: Start difference. First operand has 310 places, 323 transitions, 662 flow. Second operand 3 states and 862 transitions. [2025-03-08 22:02:17,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 304 transitions, 694 flow [2025-03-08 22:02:17,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 304 transitions, 694 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-08 22:02:17,475 INFO L231 Difference]: Finished difference. Result has 309 places, 304 transitions, 628 flow [2025-03-08 22:02:17,476 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=628, PETRI_PLACES=309, PETRI_TRANSITIONS=304} [2025-03-08 22:02:17,476 INFO L279 CegarLoopForPetriNet]: 310 programPoint places, -1 predicate places. [2025-03-08 22:02:17,476 INFO L471 AbstractCegarLoop]: Abstraction has has 309 places, 304 transitions, 628 flow [2025-03-08 22:02:17,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:02:17,477 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:02:17,477 INFO L206 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, 1, 1, 1] [2025-03-08 22:02:17,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 22:02:17,477 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2025-03-08 22:02:17,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:02:17,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1258653865, now seen corresponding path program 1 times [2025-03-08 22:02:17,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:02:17,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986498124] [2025-03-08 22:02:17,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:02:17,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:02:17,487 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-03-08 22:02:17,490 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-03-08 22:02:17,490 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:02:17,490 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:02:17,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:02:17,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:02:17,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986498124] [2025-03-08 22:02:17,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986498124] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:02:17,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:02:17,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 22:02:17,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339903538] [2025-03-08 22:02:17,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:02:17,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:02:17,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:02:17,518 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:02:17,518 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:02:17,537 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 323 [2025-03-08 22:02:17,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 304 transitions, 628 flow. Second operand has 3 states, 3 states have (on average 281.3333333333333) internal successors, (844), 3 states have internal predecessors, (844), 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) [2025-03-08 22:02:17,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:02:17,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 323 [2025-03-08 22:02:17,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:02:18,119 INFO L124 PetriNetUnfolderBase]: 788/5504 cut-off events. [2025-03-08 22:02:18,119 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2025-03-08 22:02:18,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6860 conditions, 5504 events. 788/5504 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 53312 event pairs, 774 based on Foata normal form. 1/4867 useless extension candidates. Maximal degree in co-relation 6763. Up to 1303 conditions per place. [2025-03-08 22:02:18,151 INFO L140 encePairwiseOnDemand]: 320/323 looper letters, 31 selfloop transitions, 2 changer transitions 0/311 dead transitions. [2025-03-08 22:02:18,152 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 311 transitions, 708 flow [2025-03-08 22:02:18,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:02:18,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:02:18,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 874 transitions. [2025-03-08 22:02:18,154 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9019607843137255 [2025-03-08 22:02:18,154 INFO L175 Difference]: Start difference. First operand has 309 places, 304 transitions, 628 flow. Second operand 3 states and 874 transitions. [2025-03-08 22:02:18,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 311 transitions, 708 flow [2025-03-08 22:02:18,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 311 transitions, 704 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 22:02:18,160 INFO L231 Difference]: Finished difference. Result has 310 places, 305 transitions, 636 flow [2025-03-08 22:02:18,160 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=636, PETRI_PLACES=310, PETRI_TRANSITIONS=305} [2025-03-08 22:02:18,162 INFO L279 CegarLoopForPetriNet]: 310 programPoint places, 0 predicate places. [2025-03-08 22:02:18,162 INFO L471 AbstractCegarLoop]: Abstraction has has 310 places, 305 transitions, 636 flow [2025-03-08 22:02:18,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 281.3333333333333) internal successors, (844), 3 states have internal predecessors, (844), 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) [2025-03-08 22:02:18,163 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:02:18,163 INFO L206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:02:18,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 22:02:18,163 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2025-03-08 22:02:18,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:02:18,164 INFO L85 PathProgramCache]: Analyzing trace with hash -557198313, now seen corresponding path program 1 times [2025-03-08 22:02:18,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:02:18,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368799132] [2025-03-08 22:02:18,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:02:18,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:02:18,177 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-03-08 22:02:18,185 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-03-08 22:02:18,185 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:02:18,185 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:02:18,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:02:18,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:02:18,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368799132] [2025-03-08 22:02:18,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368799132] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:02:18,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:02:18,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:02:18,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230212157] [2025-03-08 22:02:18,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:02:18,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:02:18,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:02:18,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:02:18,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:02:18,698 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 323 [2025-03-08 22:02:18,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 305 transitions, 636 flow. Second operand has 6 states, 6 states have (on average 233.5) internal successors, (1401), 6 states have internal predecessors, (1401), 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) [2025-03-08 22:02:18,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:02:18,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 323 [2025-03-08 22:02:18,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:02:26,022 INFO L124 PetriNetUnfolderBase]: 29144/72258 cut-off events. [2025-03-08 22:02:26,022 INFO L125 PetriNetUnfolderBase]: For 1348/1348 co-relation queries the response was YES. [2025-03-08 22:02:26,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118459 conditions, 72258 events. 29144/72258 cut-off events. For 1348/1348 co-relation queries the response was YES. Maximal size of possible extension queue 1202. Compared 840166 event pairs, 20506 based on Foata normal form. 0/66422 useless extension candidates. Maximal degree in co-relation 118165. Up to 40528 conditions per place. [2025-03-08 22:02:26,406 INFO L140 encePairwiseOnDemand]: 284/323 looper letters, 123 selfloop transitions, 135 changer transitions 0/488 dead transitions. [2025-03-08 22:02:26,406 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 488 transitions, 1528 flow [2025-03-08 22:02:26,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:02:26,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:02:26,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1649 transitions. [2025-03-08 22:02:26,410 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8508771929824561 [2025-03-08 22:02:26,410 INFO L175 Difference]: Start difference. First operand has 310 places, 305 transitions, 636 flow. Second operand 6 states and 1649 transitions. [2025-03-08 22:02:26,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 488 transitions, 1528 flow [2025-03-08 22:02:26,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 488 transitions, 1525 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-08 22:02:26,432 INFO L231 Difference]: Finished difference. Result has 319 places, 439 transitions, 1524 flow [2025-03-08 22:02:26,433 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=634, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1524, PETRI_PLACES=319, PETRI_TRANSITIONS=439} [2025-03-08 22:02:26,434 INFO L279 CegarLoopForPetriNet]: 310 programPoint places, 9 predicate places. [2025-03-08 22:02:26,434 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 439 transitions, 1524 flow [2025-03-08 22:02:26,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 233.5) internal successors, (1401), 6 states have internal predecessors, (1401), 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) [2025-03-08 22:02:26,435 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:02:26,435 INFO L206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:02:26,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 22:02:26,436 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2025-03-08 22:02:26,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:02:26,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1199652, now seen corresponding path program 1 times [2025-03-08 22:02:26,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:02:26,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743154631] [2025-03-08 22:02:26,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:02:26,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:02:26,450 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-03-08 22:02:26,459 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-03-08 22:02:26,459 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:02:26,459 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:02:26,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:02:26,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:02:26,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743154631] [2025-03-08 22:02:26,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743154631] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:02:26,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:02:26,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:02:26,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388213965] [2025-03-08 22:02:26,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:02:26,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:02:26,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:02:26,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:02:26,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:02:26,511 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 323 [2025-03-08 22:02:26,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 439 transitions, 1524 flow. Second operand has 3 states, 3 states have (on average 259.3333333333333) internal successors, (778), 3 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:02:26,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:02:26,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 323 [2025-03-08 22:02:26,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:02:30,992 INFO L124 PetriNetUnfolderBase]: 14005/49562 cut-off events. [2025-03-08 22:02:30,993 INFO L125 PetriNetUnfolderBase]: For 5093/5744 co-relation queries the response was YES. [2025-03-08 22:02:31,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84807 conditions, 49562 events. 14005/49562 cut-off events. For 5093/5744 co-relation queries the response was YES. Maximal size of possible extension queue 890. Compared 628185 event pairs, 8905 based on Foata normal form. 0/45961 useless extension candidates. Maximal degree in co-relation 77487. Up to 14945 conditions per place. [2025-03-08 22:02:31,305 INFO L140 encePairwiseOnDemand]: 311/323 looper letters, 40 selfloop transitions, 3 changer transitions 0/434 dead transitions. [2025-03-08 22:02:31,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 434 transitions, 1605 flow [2025-03-08 22:02:31,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:02:31,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:02:31,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 826 transitions. [2025-03-08 22:02:31,307 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8524251805985552 [2025-03-08 22:02:31,307 INFO L175 Difference]: Start difference. First operand has 319 places, 439 transitions, 1524 flow. Second operand 3 states and 826 transitions. [2025-03-08 22:02:31,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 434 transitions, 1605 flow [2025-03-08 22:02:31,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 434 transitions, 1605 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-08 22:02:31,415 INFO L231 Difference]: Finished difference. Result has 313 places, 433 transitions, 1527 flow [2025-03-08 22:02:31,416 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=1506, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1527, PETRI_PLACES=313, PETRI_TRANSITIONS=433} [2025-03-08 22:02:31,416 INFO L279 CegarLoopForPetriNet]: 310 programPoint places, 3 predicate places. [2025-03-08 22:02:31,416 INFO L471 AbstractCegarLoop]: Abstraction has has 313 places, 433 transitions, 1527 flow [2025-03-08 22:02:31,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 259.3333333333333) internal successors, (778), 3 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:02:31,417 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:02:31,417 INFO L206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:02:31,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-08 22:02:31,417 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2025-03-08 22:02:31,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:02:31,417 INFO L85 PathProgramCache]: Analyzing trace with hash -862445236, now seen corresponding path program 1 times [2025-03-08 22:02:31,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:02:31,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329400444] [2025-03-08 22:02:31,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:02:31,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:02:31,438 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 120 statements into 1 equivalence classes. [2025-03-08 22:02:31,444 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 120 of 120 statements. [2025-03-08 22:02:31,444 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:02:31,444 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:02:31,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:02:31,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:02:31,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329400444] [2025-03-08 22:02:31,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329400444] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:02:31,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:02:31,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:02:31,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858555157] [2025-03-08 22:02:31,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:02:31,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:02:31,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:02:31,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:02:31,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:02:32,148 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 323 [2025-03-08 22:02:32,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 433 transitions, 1527 flow. Second operand has 6 states, 6 states have (on average 233.16666666666666) internal successors, (1399), 6 states have internal predecessors, (1399), 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) [2025-03-08 22:02:32,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:02:32,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 323 [2025-03-08 22:02:32,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:02:48,701 INFO L124 PetriNetUnfolderBase]: 69215/170356 cut-off events. [2025-03-08 22:02:48,701 INFO L125 PetriNetUnfolderBase]: For 41659/45611 co-relation queries the response was YES. [2025-03-08 22:02:49,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 352114 conditions, 170356 events. 69215/170356 cut-off events. For 41659/45611 co-relation queries the response was YES. Maximal size of possible extension queue 2739. Compared 2183628 event pairs, 13444 based on Foata normal form. 32/160856 useless extension candidates. Maximal degree in co-relation 346346. Up to 47452 conditions per place. [2025-03-08 22:02:49,742 INFO L140 encePairwiseOnDemand]: 269/323 looper letters, 493 selfloop transitions, 227 changer transitions 0/947 dead transitions. [2025-03-08 22:02:49,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 947 transitions, 5243 flow [2025-03-08 22:02:49,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:02:49,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:02:49,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1753 transitions. [2025-03-08 22:02:49,745 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9045407636738906 [2025-03-08 22:02:49,745 INFO L175 Difference]: Start difference. First operand has 313 places, 433 transitions, 1527 flow. Second operand 6 states and 1753 transitions. [2025-03-08 22:02:49,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 947 transitions, 5243 flow [2025-03-08 22:02:50,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 947 transitions, 5243 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-08 22:02:50,041 INFO L231 Difference]: Finished difference. Result has 323 places, 672 transitions, 3903 flow [2025-03-08 22:02:50,041 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=1527, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3903, PETRI_PLACES=323, PETRI_TRANSITIONS=672} [2025-03-08 22:02:50,042 INFO L279 CegarLoopForPetriNet]: 310 programPoint places, 13 predicate places. [2025-03-08 22:02:50,042 INFO L471 AbstractCegarLoop]: Abstraction has has 323 places, 672 transitions, 3903 flow [2025-03-08 22:02:50,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 233.16666666666666) internal successors, (1399), 6 states have internal predecessors, (1399), 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) [2025-03-08 22:02:50,043 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:02:50,043 INFO L206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:02:50,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-08 22:02:50,043 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2025-03-08 22:02:50,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:02:50,044 INFO L85 PathProgramCache]: Analyzing trace with hash -940517292, now seen corresponding path program 1 times [2025-03-08 22:02:50,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:02:50,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392319114] [2025-03-08 22:02:50,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:02:50,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:02:50,058 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-08 22:02:50,065 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-08 22:02:50,066 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:02:50,066 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:02:50,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:02:50,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:02:50,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392319114] [2025-03-08 22:02:50,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392319114] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:02:50,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:02:50,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:02:50,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396948329] [2025-03-08 22:02:50,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:02:50,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:02:50,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:02:50,329 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:02:50,329 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:02:50,538 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 323 [2025-03-08 22:02:50,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 672 transitions, 3903 flow. Second operand has 6 states, 6 states have (on average 232.16666666666666) internal successors, (1393), 6 states have internal predecessors, (1393), 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) [2025-03-08 22:02:50,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:02:50,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 323 [2025-03-08 22:02:50,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand