./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 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/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 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:40:29,319 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:40:29,378 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-16 23:40:29,384 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:40:29,385 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:40:29,410 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:40:29,411 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:40:29,411 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:40:29,412 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:40:29,413 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:40:29,413 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:40:29,413 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:40:29,414 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:40:29,415 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:40:29,416 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:40:29,416 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:40:29,416 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:40:29,416 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:40:29,416 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:40:29,417 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:40:29,417 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:40:29,420 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:40:29,421 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-16 23:40:29,421 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:40:29,421 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:40:29,421 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:40:29,422 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:40:29,422 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:40:29,422 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:40:29,422 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:40:29,423 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:40:29,423 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:40:29,423 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:40:29,423 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:40:29,423 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:40:29,423 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:40:29,424 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:40:29,424 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:40:29,424 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:40:29,424 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:40:29,425 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:40:29,425 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f222d5749b9bb10b4d4c09b2c40e45ee19dec77732a8593ce917652e8ca8a43e [2024-11-16 23:40:29,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:40:29,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:40:29,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:40:29,674 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:40:29,674 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:40:29,675 INFO L431 ainManager$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 [2024-11-16 23:40:31,220 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:40:31,453 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:40:31,454 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_51-mutexptr_racefree.i [2024-11-16 23:40:31,471 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a157913f5/441636b4a08d48f5942ee09e2073b24a/FLAGcd1981d11 [2024-11-16 23:40:31,486 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a157913f5/441636b4a08d48f5942ee09e2073b24a [2024-11-16 23:40:31,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:40:31,491 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:40:31,494 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:40:31,495 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:40:31,499 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:40:31,500 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:40:31" (1/1) ... [2024-11-16 23:40:31,501 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63ea7a36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:31, skipping insertion in model container [2024-11-16 23:40:31,502 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:40:31" (1/1) ... [2024-11-16 23:40:31,542 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:40:31,881 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:40:31,903 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:40:31,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:40:31,999 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:40:31,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:31 WrapperNode [2024-11-16 23:40:31,999 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:40:32,000 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:40:32,000 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:40:32,001 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:40:32,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:31" (1/1) ... [2024-11-16 23:40:32,023 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:31" (1/1) ... [2024-11-16 23:40:32,048 INFO L138 Inliner]: procedures = 171, calls = 43, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 164 [2024-11-16 23:40:32,049 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:40:32,049 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:40:32,049 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:40:32,050 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:40:32,057 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:31" (1/1) ... [2024-11-16 23:40:32,058 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:31" (1/1) ... [2024-11-16 23:40:32,061 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:31" (1/1) ... [2024-11-16 23:40:32,061 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:31" (1/1) ... [2024-11-16 23:40:32,074 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:31" (1/1) ... [2024-11-16 23:40:32,079 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:31" (1/1) ... [2024-11-16 23:40:32,084 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:31" (1/1) ... [2024-11-16 23:40:32,085 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:31" (1/1) ... [2024-11-16 23:40:32,095 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:40:32,096 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:40:32,096 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:40:32,096 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:40:32,097 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:31" (1/1) ... [2024-11-16 23:40:32,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:40:32,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:40:32,142 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 23:40:32,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 23:40:32,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-16 23:40:32,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-16 23:40:32,193 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-16 23:40:32,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:40:32,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 23:40:32,194 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-16 23:40:32,194 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-16 23:40:32,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 23:40:32,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 23:40:32,195 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-16 23:40:32,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:40:32,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:40:32,197 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 23:40:32,321 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:40:32,323 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:40:32,591 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L713: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2024-11-16 23:40:32,592 INFO L1250 $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 [2024-11-16 23:40:32,662 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 23:40:32,662 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:40:32,711 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:40:32,718 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:40:32,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:40:32 BoogieIcfgContainer [2024-11-16 23:40:32,719 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:40:32,720 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:40:32,720 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:40:32,723 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:40:32,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:40:31" (1/3) ... [2024-11-16 23:40:32,723 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d2d65fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:40:32, skipping insertion in model container [2024-11-16 23:40:32,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:31" (2/3) ... [2024-11-16 23:40:32,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d2d65fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:40:32, skipping insertion in model container [2024-11-16 23:40:32,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:40:32" (3/3) ... [2024-11-16 23:40:32,726 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_51-mutexptr_racefree.i [2024-11-16 23:40:32,738 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:40:32,738 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-16 23:40:32,739 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 23:40:32,799 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-16 23:40:32,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 245 places, 255 transitions, 517 flow [2024-11-16 23:40:32,922 INFO L124 PetriNetUnfolderBase]: 19/332 cut-off events. [2024-11-16 23:40:32,923 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-16 23:40:32,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 332 events. 19/332 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 885 event pairs, 0 based on Foata normal form. 0/290 useless extension candidates. Maximal degree in co-relation 169. Up to 4 conditions per place. [2024-11-16 23:40:32,930 INFO L82 GeneralOperation]: Start removeDead. Operand has 245 places, 255 transitions, 517 flow [2024-11-16 23:40:32,937 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 245 places, 255 transitions, 517 flow [2024-11-16 23:40:32,951 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:40:32,965 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;@21d869a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:40:32,965 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-11-16 23:40:32,977 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:40:32,977 INFO L124 PetriNetUnfolderBase]: 0/88 cut-off events. [2024-11-16 23:40:32,977 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:40:32,977 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:32,978 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:40:32,978 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)] === [2024-11-16 23:40:32,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:32,983 INFO L85 PathProgramCache]: Analyzing trace with hash 715008162, now seen corresponding path program 1 times [2024-11-16 23:40:32,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:32,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011655917] [2024-11-16 23:40:32,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:32,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:33,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:33,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:40:33,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:33,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011655917] [2024-11-16 23:40:33,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011655917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:33,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:33,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:40:33,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722073729] [2024-11-16 23:40:33,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:33,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:40:33,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:33,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:40:33,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:40:33,519 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 255 [2024-11-16 23:40:33,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 255 transitions, 517 flow. Second operand has 3 states, 3 states have (on average 218.33333333333334) internal successors, (655), 3 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:40:33,523 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:33,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 255 [2024-11-16 23:40:33,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:33,727 INFO L124 PetriNetUnfolderBase]: 73/925 cut-off events. [2024-11-16 23:40:33,728 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-16 23:40:33,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1107 conditions, 925 events. 73/925 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4584 event pairs, 72 based on Foata normal form. 114/950 useless extension candidates. Maximal degree in co-relation 920. Up to 175 conditions per place. [2024-11-16 23:40:33,737 INFO L140 encePairwiseOnDemand]: 240/255 looper letters, 22 selfloop transitions, 2 changer transitions 0/240 dead transitions. [2024-11-16 23:40:33,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 240 transitions, 535 flow [2024-11-16 23:40:33,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:40:33,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:40:33,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 688 transitions. [2024-11-16 23:40:33,753 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8993464052287582 [2024-11-16 23:40:33,756 INFO L175 Difference]: Start difference. First operand has 245 places, 255 transitions, 517 flow. Second operand 3 states and 688 transitions. [2024-11-16 23:40:33,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 240 transitions, 535 flow [2024-11-16 23:40:33,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 240 transitions, 535 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:40:33,766 INFO L231 Difference]: Finished difference. Result has 244 places, 240 transitions, 491 flow [2024-11-16 23:40:33,768 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=487, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=491, PETRI_PLACES=244, PETRI_TRANSITIONS=240} [2024-11-16 23:40:33,772 INFO L277 CegarLoopForPetriNet]: 245 programPoint places, -1 predicate places. [2024-11-16 23:40:33,773 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 240 transitions, 491 flow [2024-11-16 23:40:33,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 218.33333333333334) internal successors, (655), 3 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:40:33,774 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:33,774 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:40:33,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:40:33,775 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)] === [2024-11-16 23:40:33,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:33,775 INFO L85 PathProgramCache]: Analyzing trace with hash -948867506, now seen corresponding path program 1 times [2024-11-16 23:40:33,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:33,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134346132] [2024-11-16 23:40:33,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:33,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:33,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:33,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:40:33,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:33,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134346132] [2024-11-16 23:40:33,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134346132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:33,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:33,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:40:33,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446989480] [2024-11-16 23:40:33,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:33,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:40:33,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:33,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:40:33,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:40:33,961 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 255 [2024-11-16 23:40:33,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 240 transitions, 491 flow. Second operand has 3 states, 3 states have (on average 225.33333333333334) internal successors, (676), 3 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:40:33,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:33,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 255 [2024-11-16 23:40:33,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:34,115 INFO L124 PetriNetUnfolderBase]: 48/749 cut-off events. [2024-11-16 23:40:34,115 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-16 23:40:34,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 873 conditions, 749 events. 48/749 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3296 event pairs, 0 based on Foata normal form. 1/673 useless extension candidates. Maximal degree in co-relation 777. Up to 108 conditions per place. [2024-11-16 23:40:34,119 INFO L140 encePairwiseOnDemand]: 252/255 looper letters, 22 selfloop transitions, 2 changer transitions 0/246 dead transitions. [2024-11-16 23:40:34,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 246 transitions, 551 flow [2024-11-16 23:40:34,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:40:34,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:40:34,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 697 transitions. [2024-11-16 23:40:34,123 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9111111111111111 [2024-11-16 23:40:34,123 INFO L175 Difference]: Start difference. First operand has 244 places, 240 transitions, 491 flow. Second operand 3 states and 697 transitions. [2024-11-16 23:40:34,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 246 transitions, 551 flow [2024-11-16 23:40:34,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 246 transitions, 547 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:40:34,129 INFO L231 Difference]: Finished difference. Result has 245 places, 240 transitions, 495 flow [2024-11-16 23:40:34,130 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=487, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=495, PETRI_PLACES=245, PETRI_TRANSITIONS=240} [2024-11-16 23:40:34,131 INFO L277 CegarLoopForPetriNet]: 245 programPoint places, 0 predicate places. [2024-11-16 23:40:34,131 INFO L471 AbstractCegarLoop]: Abstraction has has 245 places, 240 transitions, 495 flow [2024-11-16 23:40:34,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 225.33333333333334) internal successors, (676), 3 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:40:34,132 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:34,132 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:40:34,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:40:34,133 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)] === [2024-11-16 23:40:34,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:34,134 INFO L85 PathProgramCache]: Analyzing trace with hash -410833959, now seen corresponding path program 1 times [2024-11-16 23:40:34,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:34,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233243550] [2024-11-16 23:40:34,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:34,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:34,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:34,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:40:34,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:34,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233243550] [2024-11-16 23:40:34,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233243550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:34,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:34,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:40:34,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726190704] [2024-11-16 23:40:34,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:34,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:40:34,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:34,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:40:34,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:40:34,849 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 255 [2024-11-16 23:40:34,851 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 240 transitions, 495 flow. Second operand has 6 states, 6 states have (on average 193.5) internal successors, (1161), 6 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:40:34,851 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:34,851 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 255 [2024-11-16 23:40:34,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:35,292 INFO L124 PetriNetUnfolderBase]: 578/2414 cut-off events. [2024-11-16 23:40:35,293 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-11-16 23:40:35,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3715 conditions, 2414 events. 578/2414 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 16996 event pairs, 343 based on Foata normal form. 0/2197 useless extension candidates. Maximal degree in co-relation 3542. Up to 1071 conditions per place. [2024-11-16 23:40:35,303 INFO L140 encePairwiseOnDemand]: 232/255 looper letters, 73 selfloop transitions, 70 changer transitions 0/333 dead transitions. [2024-11-16 23:40:35,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 333 transitions, 970 flow [2024-11-16 23:40:35,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:40:35,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:40:35,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1296 transitions. [2024-11-16 23:40:35,307 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8470588235294118 [2024-11-16 23:40:35,307 INFO L175 Difference]: Start difference. First operand has 245 places, 240 transitions, 495 flow. Second operand 6 states and 1296 transitions. [2024-11-16 23:40:35,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 333 transitions, 970 flow [2024-11-16 23:40:35,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 333 transitions, 964 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:40:35,313 INFO L231 Difference]: Finished difference. Result has 253 places, 309 transitions, 954 flow [2024-11-16 23:40:35,313 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=491, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=954, PETRI_PLACES=253, PETRI_TRANSITIONS=309} [2024-11-16 23:40:35,314 INFO L277 CegarLoopForPetriNet]: 245 programPoint places, 8 predicate places. [2024-11-16 23:40:35,314 INFO L471 AbstractCegarLoop]: Abstraction has has 253 places, 309 transitions, 954 flow [2024-11-16 23:40:35,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 193.5) internal successors, (1161), 6 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:40:35,315 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:35,315 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:40:35,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 23:40:35,315 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)] === [2024-11-16 23:40:35,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:35,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1742140115, now seen corresponding path program 1 times [2024-11-16 23:40:35,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:35,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333112120] [2024-11-16 23:40:35,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:35,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:35,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:35,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:40:35,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:35,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333112120] [2024-11-16 23:40:35,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333112120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:35,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:35,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:40:35,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548377914] [2024-11-16 23:40:35,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:35,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:40:35,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:35,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:40:35,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:40:35,381 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 255 [2024-11-16 23:40:35,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 309 transitions, 954 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) [2024-11-16 23:40:35,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:35,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 255 [2024-11-16 23:40:35,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:35,568 INFO L124 PetriNetUnfolderBase]: 245/1647 cut-off events. [2024-11-16 23:40:35,568 INFO L125 PetriNetUnfolderBase]: For 92/103 co-relation queries the response was YES. [2024-11-16 23:40:35,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2525 conditions, 1647 events. 245/1647 cut-off events. For 92/103 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 10802 event pairs, 110 based on Foata normal form. 0/1541 useless extension candidates. Maximal degree in co-relation 2360. Up to 299 conditions per place. [2024-11-16 23:40:35,575 INFO L140 encePairwiseOnDemand]: 247/255 looper letters, 25 selfloop transitions, 2 changer transitions 0/305 dead transitions. [2024-11-16 23:40:35,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 305 transitions, 1000 flow [2024-11-16 23:40:35,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:40:35,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:40:35,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 666 transitions. [2024-11-16 23:40:35,578 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8705882352941177 [2024-11-16 23:40:35,578 INFO L175 Difference]: Start difference. First operand has 253 places, 309 transitions, 954 flow. Second operand 3 states and 666 transitions. [2024-11-16 23:40:35,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 305 transitions, 1000 flow [2024-11-16 23:40:35,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 305 transitions, 1000 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:40:35,585 INFO L231 Difference]: Finished difference. Result has 250 places, 305 transitions, 956 flow [2024-11-16 23:40:35,586 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=942, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=956, PETRI_PLACES=250, PETRI_TRANSITIONS=305} [2024-11-16 23:40:35,586 INFO L277 CegarLoopForPetriNet]: 245 programPoint places, 5 predicate places. [2024-11-16 23:40:35,586 INFO L471 AbstractCegarLoop]: Abstraction has has 250 places, 305 transitions, 956 flow [2024-11-16 23:40:35,587 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) [2024-11-16 23:40:35,587 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:35,587 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:40:35,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 23:40:35,588 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)] === [2024-11-16 23:40:35,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:35,588 INFO L85 PathProgramCache]: Analyzing trace with hash -700083543, now seen corresponding path program 1 times [2024-11-16 23:40:35,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:35,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112820431] [2024-11-16 23:40:35,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:35,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:40:35,622 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:40:35,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:40:35,711 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:40:35,715 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:40:35,717 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2024-11-16 23:40:35,718 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2024-11-16 23:40:35,718 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2024-11-16 23:40:35,718 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2024-11-16 23:40:35,719 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2024-11-16 23:40:35,719 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2024-11-16 23:40:35,719 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2024-11-16 23:40:35,719 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2024-11-16 23:40:35,719 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2024-11-16 23:40:35,719 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2024-11-16 23:40:35,719 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2024-11-16 23:40:35,719 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2024-11-16 23:40:35,719 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2024-11-16 23:40:35,720 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2024-11-16 23:40:35,720 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2024-11-16 23:40:35,720 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2024-11-16 23:40:35,720 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2024-11-16 23:40:35,724 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2024-11-16 23:40:35,725 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2024-11-16 23:40:35,725 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2024-11-16 23:40:35,725 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2024-11-16 23:40:35,725 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2024-11-16 23:40:35,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 23:40:35,726 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-16 23:40:35,728 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:40:35,731 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-16 23:40:35,784 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-16 23:40:35,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 319 places, 334 transitions, 684 flow [2024-11-16 23:40:35,887 INFO L124 PetriNetUnfolderBase]: 34/517 cut-off events. [2024-11-16 23:40:35,891 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-16 23:40:35,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 529 conditions, 517 events. 34/517 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1820 event pairs, 0 based on Foata normal form. 0/445 useless extension candidates. Maximal degree in co-relation 334. Up to 8 conditions per place. [2024-11-16 23:40:35,899 INFO L82 GeneralOperation]: Start removeDead. Operand has 319 places, 334 transitions, 684 flow [2024-11-16 23:40:35,908 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 319 places, 334 transitions, 684 flow [2024-11-16 23:40:35,909 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:40:35,913 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;@21d869a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:40:35,913 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-11-16 23:40:35,944 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:40:35,945 INFO L124 PetriNetUnfolderBase]: 0/88 cut-off events. [2024-11-16 23:40:35,945 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:40:35,947 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:35,948 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:40:35,948 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)] === [2024-11-16 23:40:35,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:35,948 INFO L85 PathProgramCache]: Analyzing trace with hash 146896290, now seen corresponding path program 1 times [2024-11-16 23:40:35,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:35,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183434] [2024-11-16 23:40:35,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:35,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:35,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:35,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:40:35,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:35,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183434] [2024-11-16 23:40:35,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:35,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:35,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:40:35,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656085936] [2024-11-16 23:40:35,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:35,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:40:35,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:35,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:40:35,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:40:36,033 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 279 out of 334 [2024-11-16 23:40:36,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 334 transitions, 684 flow. Second operand has 3 states, 3 states have (on average 280.3333333333333) internal successors, (841), 3 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:40:36,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:36,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 279 of 334 [2024-11-16 23:40:36,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:37,536 INFO L124 PetriNetUnfolderBase]: 1642/9633 cut-off events. [2024-11-16 23:40:37,537 INFO L125 PetriNetUnfolderBase]: For 101/101 co-relation queries the response was YES. [2024-11-16 23:40:37,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12366 conditions, 9633 events. 1642/9633 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 100587 event pairs, 1629 based on Foata normal form. 1813/10520 useless extension candidates. Maximal degree in co-relation 10982. Up to 2673 conditions per place. [2024-11-16 23:40:37,617 INFO L140 encePairwiseOnDemand]: 313/334 looper letters, 33 selfloop transitions, 2 changer transitions 0/313 dead transitions. [2024-11-16 23:40:37,618 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 313 transitions, 712 flow [2024-11-16 23:40:37,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:40:37,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:40:37,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 891 transitions. [2024-11-16 23:40:37,622 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8892215568862275 [2024-11-16 23:40:37,623 INFO L175 Difference]: Start difference. First operand has 319 places, 334 transitions, 684 flow. Second operand 3 states and 891 transitions. [2024-11-16 23:40:37,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 313 transitions, 712 flow [2024-11-16 23:40:37,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 313 transitions, 712 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:40:37,628 INFO L231 Difference]: Finished difference. Result has 318 places, 313 transitions, 646 flow [2024-11-16 23:40:37,629 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=334, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=646, PETRI_PLACES=318, PETRI_TRANSITIONS=313} [2024-11-16 23:40:37,629 INFO L277 CegarLoopForPetriNet]: 319 programPoint places, -1 predicate places. [2024-11-16 23:40:37,630 INFO L471 AbstractCegarLoop]: Abstraction has has 318 places, 313 transitions, 646 flow [2024-11-16 23:40:37,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 280.3333333333333) internal successors, (841), 3 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:40:37,630 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:37,631 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:40:37,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 23:40:37,631 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)] === [2024-11-16 23:40:37,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:37,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1091813966, now seen corresponding path program 1 times [2024-11-16 23:40:37,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:37,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131541677] [2024-11-16 23:40:37,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:37,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:37,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:40:37,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:37,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131541677] [2024-11-16 23:40:37,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131541677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:37,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:37,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:40:37,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202068276] [2024-11-16 23:40:37,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:37,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:40:37,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:37,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:40:37,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:40:37,698 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 334 [2024-11-16 23:40:37,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 313 transitions, 646 flow. Second operand has 3 states, 3 states have (on average 290.3333333333333) internal successors, (871), 3 states have internal predecessors, (871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:40:37,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:37,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 334 [2024-11-16 23:40:37,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:38,531 INFO L124 PetriNetUnfolderBase]: 788/5711 cut-off events. [2024-11-16 23:40:38,531 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2024-11-16 23:40:38,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7067 conditions, 5711 events. 788/5711 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 55584 event pairs, 774 based on Foata normal form. 1/5074 useless extension candidates. Maximal degree in co-relation 6970. Up to 1303 conditions per place. [2024-11-16 23:40:38,570 INFO L140 encePairwiseOnDemand]: 331/334 looper letters, 31 selfloop transitions, 2 changer transitions 0/320 dead transitions. [2024-11-16 23:40:38,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 320 transitions, 726 flow [2024-11-16 23:40:38,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:40:38,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:40:38,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 901 transitions. [2024-11-16 23:40:38,573 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8992015968063872 [2024-11-16 23:40:38,574 INFO L175 Difference]: Start difference. First operand has 318 places, 313 transitions, 646 flow. Second operand 3 states and 901 transitions. [2024-11-16 23:40:38,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 320 transitions, 726 flow [2024-11-16 23:40:38,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 320 transitions, 722 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:40:38,579 INFO L231 Difference]: Finished difference. Result has 319 places, 314 transitions, 654 flow [2024-11-16 23:40:38,580 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=334, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=654, PETRI_PLACES=319, PETRI_TRANSITIONS=314} [2024-11-16 23:40:38,581 INFO L277 CegarLoopForPetriNet]: 319 programPoint places, 0 predicate places. [2024-11-16 23:40:38,581 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 314 transitions, 654 flow [2024-11-16 23:40:38,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 290.3333333333333) internal successors, (871), 3 states have internal predecessors, (871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:40:38,582 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:38,582 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:40:38,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 23:40:38,582 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)] === [2024-11-16 23:40:38,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:38,583 INFO L85 PathProgramCache]: Analyzing trace with hash -133649127, now seen corresponding path program 1 times [2024-11-16 23:40:38,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:38,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060925084] [2024-11-16 23:40:38,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:38,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:38,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:38,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:40:38,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:38,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060925084] [2024-11-16 23:40:38,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060925084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:38,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:38,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:40:38,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246389115] [2024-11-16 23:40:38,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:38,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:40:38,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:38,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:40:38,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:40:39,303 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 334 [2024-11-16 23:40:39,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 314 transitions, 654 flow. Second operand has 6 states, 6 states have (on average 242.5) internal successors, (1455), 6 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:40:39,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:39,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 334 [2024-11-16 23:40:39,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:48,455 INFO L124 PetriNetUnfolderBase]: 29144/72997 cut-off events. [2024-11-16 23:40:48,455 INFO L125 PetriNetUnfolderBase]: For 1326/1326 co-relation queries the response was YES. [2024-11-16 23:40:48,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119197 conditions, 72997 events. 29144/72997 cut-off events. For 1326/1326 co-relation queries the response was YES. Maximal size of possible extension queue 1194. Compared 853548 event pairs, 20506 based on Foata normal form. 0/67120 useless extension candidates. Maximal degree in co-relation 118899. Up to 40528 conditions per place. [2024-11-16 23:40:49,151 INFO L140 encePairwiseOnDemand]: 295/334 looper letters, 123 selfloop transitions, 135 changer transitions 0/497 dead transitions. [2024-11-16 23:40:49,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 497 transitions, 1546 flow [2024-11-16 23:40:49,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:40:49,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:40:49,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1703 transitions. [2024-11-16 23:40:49,154 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8498003992015968 [2024-11-16 23:40:49,155 INFO L175 Difference]: Start difference. First operand has 319 places, 314 transitions, 654 flow. Second operand 6 states and 1703 transitions. [2024-11-16 23:40:49,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 497 transitions, 1546 flow [2024-11-16 23:40:49,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 497 transitions, 1543 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:40:49,178 INFO L231 Difference]: Finished difference. Result has 328 places, 448 transitions, 1542 flow [2024-11-16 23:40:49,179 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=334, PETRI_DIFFERENCE_MINUEND_FLOW=652, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1542, PETRI_PLACES=328, PETRI_TRANSITIONS=448} [2024-11-16 23:40:49,180 INFO L277 CegarLoopForPetriNet]: 319 programPoint places, 9 predicate places. [2024-11-16 23:40:49,180 INFO L471 AbstractCegarLoop]: Abstraction has has 328 places, 448 transitions, 1542 flow [2024-11-16 23:40:49,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 242.5) internal successors, (1455), 6 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:40:49,181 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:49,182 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:40:49,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 23:40:49,182 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)] === [2024-11-16 23:40:49,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:49,182 INFO L85 PathProgramCache]: Analyzing trace with hash 2125460352, now seen corresponding path program 1 times [2024-11-16 23:40:49,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:49,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451992455] [2024-11-16 23:40:49,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:49,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:49,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:49,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:40:49,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:49,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451992455] [2024-11-16 23:40:49,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451992455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:49,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:49,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:40:49,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164398170] [2024-11-16 23:40:49,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:49,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:40:49,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:49,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:40:49,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:40:49,250 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 334 [2024-11-16 23:40:49,251 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 448 transitions, 1542 flow. Second operand has 3 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:40:49,251 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:49,251 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 334 [2024-11-16 23:40:49,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:55,430 INFO L124 PetriNetUnfolderBase]: 15235/51716 cut-off events. [2024-11-16 23:40:55,430 INFO L125 PetriNetUnfolderBase]: For 5230/5830 co-relation queries the response was YES. [2024-11-16 23:40:55,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88248 conditions, 51716 events. 15235/51716 cut-off events. For 5230/5830 co-relation queries the response was YES. Maximal size of possible extension queue 921. Compared 651418 event pairs, 9073 based on Foata normal form. 0/47940 useless extension candidates. Maximal degree in co-relation 79823. Up to 14376 conditions per place. [2024-11-16 23:40:55,815 INFO L140 encePairwiseOnDemand]: 322/334 looper letters, 40 selfloop transitions, 3 changer transitions 0/443 dead transitions. [2024-11-16 23:40:55,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 443 transitions, 1623 flow [2024-11-16 23:40:55,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:40:55,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:40:55,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 853 transitions. [2024-11-16 23:40:55,817 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8512974051896207 [2024-11-16 23:40:55,817 INFO L175 Difference]: Start difference. First operand has 328 places, 448 transitions, 1542 flow. Second operand 3 states and 853 transitions. [2024-11-16 23:40:55,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 443 transitions, 1623 flow [2024-11-16 23:40:55,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 443 transitions, 1623 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:40:55,928 INFO L231 Difference]: Finished difference. Result has 322 places, 442 transitions, 1545 flow [2024-11-16 23:40:55,929 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=334, PETRI_DIFFERENCE_MINUEND_FLOW=1524, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1545, PETRI_PLACES=322, PETRI_TRANSITIONS=442} [2024-11-16 23:40:55,930 INFO L277 CegarLoopForPetriNet]: 319 programPoint places, 3 predicate places. [2024-11-16 23:40:55,930 INFO L471 AbstractCegarLoop]: Abstraction has has 322 places, 442 transitions, 1545 flow [2024-11-16 23:40:55,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:40:55,931 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:55,931 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:40:55,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 23:40:55,931 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)] === [2024-11-16 23:40:55,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:55,932 INFO L85 PathProgramCache]: Analyzing trace with hash -394346354, now seen corresponding path program 1 times [2024-11-16 23:40:55,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:55,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291693113] [2024-11-16 23:40:55,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:55,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:55,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:56,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:40:56,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:56,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291693113] [2024-11-16 23:40:56,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291693113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:56,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:56,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:40:56,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087551348] [2024-11-16 23:40:56,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:56,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:40:56,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:56,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:40:56,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:40:56,615 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 334 [2024-11-16 23:40:56,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 442 transitions, 1545 flow. Second operand has 6 states, 6 states have (on average 242.16666666666666) internal successors, (1453), 6 states have internal predecessors, (1453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:40:56,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:56,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 334 [2024-11-16 23:40:56,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand