./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race-3.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/pthread-race-challenges/thread-join-array-const-race-3.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 fa0ecdfec37b7bd940900ff854c772fdadeb6c6111223868a85a6141c0a777e6 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:50:27,342 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:50:27,387 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-16 23:50:27,391 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:50:27,394 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:50:27,420 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:50:27,422 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:50:27,422 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:50:27,423 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:50:27,423 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:50:27,424 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:50:27,424 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:50:27,425 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:50:27,426 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:50:27,426 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:50:27,427 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:50:27,427 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:50:27,427 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:50:27,427 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:50:27,427 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:50:27,430 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:50:27,431 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:50:27,431 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-16 23:50:27,431 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:50:27,431 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:50:27,431 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:50:27,432 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:50:27,432 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:50:27,432 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:50:27,432 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:50:27,432 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:50:27,432 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:50:27,433 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:50:27,433 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:50:27,433 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:50:27,433 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:50:27,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:50:27,433 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:50:27,433 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:50:27,433 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:50:27,434 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:50:27,435 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa0ecdfec37b7bd940900ff854c772fdadeb6c6111223868a85a6141c0a777e6 [2024-11-16 23:50:27,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:50:27,650 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:50:27,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:50:27,653 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:50:27,654 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:50:27,655 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race-3.i [2024-11-16 23:50:28,945 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:50:29,136 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:50:29,136 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race-3.i [2024-11-16 23:50:29,147 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43283b690/f5612a925665470084128cf1f302abfa/FLAG386999b52 [2024-11-16 23:50:29,158 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43283b690/f5612a925665470084128cf1f302abfa [2024-11-16 23:50:29,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:50:29,161 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:50:29,162 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:50:29,162 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:50:29,167 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:50:29,168 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:50:29" (1/1) ... [2024-11-16 23:50:29,169 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b14f960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:29, skipping insertion in model container [2024-11-16 23:50:29,169 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:50:29" (1/1) ... [2024-11-16 23:50:29,194 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:50:29,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:50:29,458 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:50:29,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:50:29,604 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:50:29,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:29 WrapperNode [2024-11-16 23:50:29,611 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:50:29,614 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:50:29,614 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:50:29,614 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:50:29,620 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:29" (1/1) ... [2024-11-16 23:50:29,633 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:29" (1/1) ... [2024-11-16 23:50:29,648 INFO L138 Inliner]: procedures = 158, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 72 [2024-11-16 23:50:29,649 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:50:29,649 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:50:29,649 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:50:29,649 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:50:29,655 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:29" (1/1) ... [2024-11-16 23:50:29,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:29" (1/1) ... [2024-11-16 23:50:29,658 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:29" (1/1) ... [2024-11-16 23:50:29,658 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:29" (1/1) ... [2024-11-16 23:50:29,664 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:29" (1/1) ... [2024-11-16 23:50:29,664 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:29" (1/1) ... [2024-11-16 23:50:29,665 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:29" (1/1) ... [2024-11-16 23:50:29,666 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:29" (1/1) ... [2024-11-16 23:50:29,669 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:50:29,669 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:50:29,669 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:50:29,669 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:50:29,670 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:29" (1/1) ... [2024-11-16 23:50:29,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:50:29,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:50:29,716 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 23:50:29,718 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 23:50:29,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-16 23:50:29,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-16 23:50:29,749 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-16 23:50:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:50:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 23:50:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 23:50:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 23:50:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-16 23:50:29,750 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-16 23:50:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-16 23:50:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:50:29,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:50:29,751 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 23:50:29,837 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:50:29,839 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:50:29,959 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L691: havoc main_~#tids~0#1.base, main_~#tids~0#1.offset; [2024-11-16 23:50:29,959 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L691-1: SUMMARY for call ULTIMATE.dealloc(main_~#tids~0#1.base, main_~#tids~0#1.offset); srcloc: null [2024-11-16 23:50:29,976 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 23:50:29,976 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:50:29,998 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:50:29,999 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:50:29,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:50:29 BoogieIcfgContainer [2024-11-16 23:50:29,999 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:50:30,002 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:50:30,002 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:50:30,005 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:50:30,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:50:29" (1/3) ... [2024-11-16 23:50:30,006 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@496b996c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:50:30, skipping insertion in model container [2024-11-16 23:50:30,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:29" (2/3) ... [2024-11-16 23:50:30,007 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@496b996c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:50:30, skipping insertion in model container [2024-11-16 23:50:30,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:50:29" (3/3) ... [2024-11-16 23:50:30,009 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-array-const-race-3.i [2024-11-16 23:50:30,024 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:50:30,024 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-11-16 23:50:30,025 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 23:50:30,092 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-16 23:50:30,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 115 places, 113 transitions, 240 flow [2024-11-16 23:50:30,204 INFO L124 PetriNetUnfolderBase]: 8/231 cut-off events. [2024-11-16 23:50:30,204 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-16 23:50:30,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 231 events. 8/231 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 634 event pairs, 0 based on Foata normal form. 0/204 useless extension candidates. Maximal degree in co-relation 118. Up to 8 conditions per place. [2024-11-16 23:50:30,213 INFO L82 GeneralOperation]: Start removeDead. Operand has 115 places, 113 transitions, 240 flow [2024-11-16 23:50:30,217 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 114 places, 112 transitions, 237 flow [2024-11-16 23:50:30,227 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:50:30,235 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;@4e089f8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:50:30,235 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-16 23:50:30,244 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:50:30,245 INFO L124 PetriNetUnfolderBase]: 1/37 cut-off events. [2024-11-16 23:50:30,245 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:50:30,245 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:30,246 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] [2024-11-16 23:50:30,247 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-16 23:50:30,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:30,252 INFO L85 PathProgramCache]: Analyzing trace with hash 2115739552, now seen corresponding path program 1 times [2024-11-16 23:50:30,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:30,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376302844] [2024-11-16 23:50:30,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:30,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:30,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:30,844 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 23:50:30,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:30,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376302844] [2024-11-16 23:50:30,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376302844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:30,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:30,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:50:30,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16070217] [2024-11-16 23:50:30,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:30,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:50:30,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:30,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:50:30,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:50:31,076 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 113 [2024-11-16 23:50:31,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 112 transitions, 237 flow. Second operand has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 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 23:50:31,083 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:31,083 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 113 [2024-11-16 23:50:31,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:31,290 INFO L124 PetriNetUnfolderBase]: 138/799 cut-off events. [2024-11-16 23:50:31,291 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-11-16 23:50:31,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1129 conditions, 799 events. 138/799 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 4942 event pairs, 54 based on Foata normal form. 18/733 useless extension candidates. Maximal degree in co-relation 834. Up to 276 conditions per place. [2024-11-16 23:50:31,299 INFO L140 encePairwiseOnDemand]: 105/113 looper letters, 33 selfloop transitions, 5 changer transitions 0/117 dead transitions. [2024-11-16 23:50:31,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 117 transitions, 323 flow [2024-11-16 23:50:31,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:50:31,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:50:31,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 521 transitions. [2024-11-16 23:50:31,311 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7684365781710915 [2024-11-16 23:50:31,313 INFO L175 Difference]: Start difference. First operand has 114 places, 112 transitions, 237 flow. Second operand 6 states and 521 transitions. [2024-11-16 23:50:31,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 117 transitions, 323 flow [2024-11-16 23:50:31,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 117 transitions, 319 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:50:31,319 INFO L231 Difference]: Finished difference. Result has 116 places, 109 transitions, 237 flow [2024-11-16 23:50:31,321 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=237, PETRI_PLACES=116, PETRI_TRANSITIONS=109} [2024-11-16 23:50:31,323 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 2 predicate places. [2024-11-16 23:50:31,324 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 109 transitions, 237 flow [2024-11-16 23:50:31,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 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 23:50:31,325 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:31,325 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] [2024-11-16 23:50:31,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:50:31,325 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-16 23:50:31,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:31,326 INFO L85 PathProgramCache]: Analyzing trace with hash -2000716511, now seen corresponding path program 1 times [2024-11-16 23:50:31,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:31,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616099243] [2024-11-16 23:50:31,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:31,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:31,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:31,400 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 23:50:31,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:31,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616099243] [2024-11-16 23:50:31,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616099243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:31,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:31,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 23:50:31,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894788800] [2024-11-16 23:50:31,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:31,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 23:50:31,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:31,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 23:50:31,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 23:50:31,448 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 113 [2024-11-16 23:50:31,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 109 transitions, 237 flow. Second operand has 4 states, 4 states have (on average 97.25) internal successors, (389), 4 states have internal predecessors, (389), 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 23:50:31,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:31,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 113 [2024-11-16 23:50:31,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:31,511 INFO L124 PetriNetUnfolderBase]: 33/437 cut-off events. [2024-11-16 23:50:31,512 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-16 23:50:31,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 547 conditions, 437 events. 33/437 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1938 event pairs, 3 based on Foata normal form. 1/393 useless extension candidates. Maximal degree in co-relation 473. Up to 43 conditions per place. [2024-11-16 23:50:31,516 INFO L140 encePairwiseOnDemand]: 108/113 looper letters, 17 selfloop transitions, 4 changer transitions 0/115 dead transitions. [2024-11-16 23:50:31,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 115 transitions, 291 flow [2024-11-16 23:50:31,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 23:50:31,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 23:50:31,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 406 transitions. [2024-11-16 23:50:31,518 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8982300884955752 [2024-11-16 23:50:31,518 INFO L175 Difference]: Start difference. First operand has 116 places, 109 transitions, 237 flow. Second operand 4 states and 406 transitions. [2024-11-16 23:50:31,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 115 transitions, 291 flow [2024-11-16 23:50:31,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 115 transitions, 281 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:50:31,523 INFO L231 Difference]: Finished difference. Result has 115 places, 109 transitions, 239 flow [2024-11-16 23:50:31,523 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=239, PETRI_PLACES=115, PETRI_TRANSITIONS=109} [2024-11-16 23:50:31,524 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 1 predicate places. [2024-11-16 23:50:31,524 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 109 transitions, 239 flow [2024-11-16 23:50:31,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.25) internal successors, (389), 4 states have internal predecessors, (389), 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 23:50:31,524 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:31,525 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] [2024-11-16 23:50:31,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:50:31,525 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-16 23:50:31,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:31,526 INFO L85 PathProgramCache]: Analyzing trace with hash 732072209, now seen corresponding path program 1 times [2024-11-16 23:50:31,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:31,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723660113] [2024-11-16 23:50:31,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:31,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:31,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:31,569 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 23:50:31,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:31,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723660113] [2024-11-16 23:50:31,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723660113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:31,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:31,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:50:31,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496656305] [2024-11-16 23:50:31,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:31,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:50:31,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:31,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:50:31,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:50:31,584 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 113 [2024-11-16 23:50:31,585 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 109 transitions, 239 flow. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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 23:50:31,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:31,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 113 [2024-11-16 23:50:31,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:31,693 INFO L124 PetriNetUnfolderBase]: 112/720 cut-off events. [2024-11-16 23:50:31,693 INFO L125 PetriNetUnfolderBase]: For 39/50 co-relation queries the response was YES. [2024-11-16 23:50:31,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 978 conditions, 720 events. 112/720 cut-off events. For 39/50 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 4373 event pairs, 59 based on Foata normal form. 1/636 useless extension candidates. Maximal degree in co-relation 919. Up to 182 conditions per place. [2024-11-16 23:50:31,698 INFO L140 encePairwiseOnDemand]: 107/113 looper letters, 18 selfloop transitions, 5 changer transitions 0/117 dead transitions. [2024-11-16 23:50:31,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 117 transitions, 303 flow [2024-11-16 23:50:31,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:50:31,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:50:31,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 312 transitions. [2024-11-16 23:50:31,700 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9203539823008849 [2024-11-16 23:50:31,700 INFO L175 Difference]: Start difference. First operand has 115 places, 109 transitions, 239 flow. Second operand 3 states and 312 transitions. [2024-11-16 23:50:31,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 117 transitions, 303 flow [2024-11-16 23:50:31,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 117 transitions, 295 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-16 23:50:31,705 INFO L231 Difference]: Finished difference. Result has 116 places, 113 transitions, 269 flow [2024-11-16 23:50:31,706 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=269, PETRI_PLACES=116, PETRI_TRANSITIONS=113} [2024-11-16 23:50:31,707 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 2 predicate places. [2024-11-16 23:50:31,707 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 113 transitions, 269 flow [2024-11-16 23:50:31,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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 23:50:31,708 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:31,708 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] [2024-11-16 23:50:31,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 23:50:31,709 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-16 23:50:31,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:31,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1797179570, now seen corresponding path program 1 times [2024-11-16 23:50:31,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:31,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138678323] [2024-11-16 23:50:31,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:31,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:31,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:50:31,742 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:50:31,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:50:31,787 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:50:31,788 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:50:31,788 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-11-16 23:50:31,790 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-11-16 23:50:31,790 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-11-16 23:50:31,791 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-11-16 23:50:31,791 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-11-16 23:50:31,791 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 9 remaining) [2024-11-16 23:50:31,791 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-11-16 23:50:31,792 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-11-16 23:50:31,792 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-11-16 23:50:31,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 23:50:31,793 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-16 23:50:31,795 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:50:31,795 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-16 23:50:31,821 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-16 23:50:31,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 153 places, 149 transitions, 330 flow [2024-11-16 23:50:31,870 INFO L124 PetriNetUnfolderBase]: 18/408 cut-off events. [2024-11-16 23:50:31,871 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-16 23:50:31,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 436 conditions, 408 events. 18/408 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1373 event pairs, 1 based on Foata normal form. 0/359 useless extension candidates. Maximal degree in co-relation 431. Up to 16 conditions per place. [2024-11-16 23:50:31,872 INFO L82 GeneralOperation]: Start removeDead. Operand has 153 places, 149 transitions, 330 flow [2024-11-16 23:50:31,874 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 133 places, 130 transitions, 282 flow [2024-11-16 23:50:31,875 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:50:31,876 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;@4e089f8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:50:31,876 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-16 23:50:31,879 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:50:31,883 INFO L124 PetriNetUnfolderBase]: 1/37 cut-off events. [2024-11-16 23:50:31,883 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:50:31,883 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:31,883 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] [2024-11-16 23:50:31,884 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-16 23:50:31,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:31,884 INFO L85 PathProgramCache]: Analyzing trace with hash 333887008, now seen corresponding path program 1 times [2024-11-16 23:50:31,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:31,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274228896] [2024-11-16 23:50:31,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:31,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:31,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:32,212 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 23:50:32,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:32,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274228896] [2024-11-16 23:50:32,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274228896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:32,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:32,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:50:32,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735993634] [2024-11-16 23:50:32,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:32,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:50:32,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:32,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:50:32,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:50:32,379 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 149 [2024-11-16 23:50:32,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 130 transitions, 282 flow. Second operand has 6 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:50:32,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:32,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 149 [2024-11-16 23:50:32,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:32,755 INFO L124 PetriNetUnfolderBase]: 879/3415 cut-off events. [2024-11-16 23:50:32,756 INFO L125 PetriNetUnfolderBase]: For 163/163 co-relation queries the response was YES. [2024-11-16 23:50:32,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5022 conditions, 3415 events. 879/3415 cut-off events. For 163/163 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 29881 event pairs, 243 based on Foata normal form. 72/3163 useless extension candidates. Maximal degree in co-relation 1464. Up to 1365 conditions per place. [2024-11-16 23:50:32,774 INFO L140 encePairwiseOnDemand]: 141/149 looper letters, 45 selfloop transitions, 5 changer transitions 0/143 dead transitions. [2024-11-16 23:50:32,774 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 143 transitions, 408 flow [2024-11-16 23:50:32,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:50:32,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:50:32,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 701 transitions. [2024-11-16 23:50:32,776 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7841163310961968 [2024-11-16 23:50:32,776 INFO L175 Difference]: Start difference. First operand has 133 places, 130 transitions, 282 flow. Second operand 6 states and 701 transitions. [2024-11-16 23:50:32,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 143 transitions, 408 flow [2024-11-16 23:50:32,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 143 transitions, 404 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:50:32,781 INFO L231 Difference]: Finished difference. Result has 135 places, 127 transitions, 282 flow [2024-11-16 23:50:32,783 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=282, PETRI_PLACES=135, PETRI_TRANSITIONS=127} [2024-11-16 23:50:32,784 INFO L277 CegarLoopForPetriNet]: 133 programPoint places, 2 predicate places. [2024-11-16 23:50:32,784 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 127 transitions, 282 flow [2024-11-16 23:50:32,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:50:32,785 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:32,785 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] [2024-11-16 23:50:32,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 23:50:32,785 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-16 23:50:32,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:32,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1403570395, now seen corresponding path program 1 times [2024-11-16 23:50:32,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:32,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233289422] [2024-11-16 23:50:32,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:32,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:32,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:32,829 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 23:50:32,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:32,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233289422] [2024-11-16 23:50:32,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233289422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:32,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:32,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 23:50:32,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984352048] [2024-11-16 23:50:32,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:32,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 23:50:32,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:32,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 23:50:32,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 23:50:32,859 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 149 [2024-11-16 23:50:32,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 127 transitions, 282 flow. Second operand has 4 states, 4 states have (on average 125.25) internal successors, (501), 4 states have internal predecessors, (501), 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 23:50:32,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:32,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 149 [2024-11-16 23:50:32,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:33,063 INFO L124 PetriNetUnfolderBase]: 253/1616 cut-off events. [2024-11-16 23:50:33,063 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES. [2024-11-16 23:50:33,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2139 conditions, 1616 events. 253/1616 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 11859 event pairs, 101 based on Foata normal form. 1/1457 useless extension candidates. Maximal degree in co-relation 1105. Up to 267 conditions per place. [2024-11-16 23:50:33,071 INFO L140 encePairwiseOnDemand]: 144/149 looper letters, 24 selfloop transitions, 4 changer transitions 0/136 dead transitions. [2024-11-16 23:50:33,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 136 transitions, 356 flow [2024-11-16 23:50:33,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 23:50:33,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 23:50:33,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 525 transitions. [2024-11-16 23:50:33,073 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8808724832214765 [2024-11-16 23:50:33,073 INFO L175 Difference]: Start difference. First operand has 135 places, 127 transitions, 282 flow. Second operand 4 states and 525 transitions. [2024-11-16 23:50:33,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 136 transitions, 356 flow [2024-11-16 23:50:33,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 136 transitions, 346 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:50:33,076 INFO L231 Difference]: Finished difference. Result has 134 places, 128 transitions, 288 flow [2024-11-16 23:50:33,076 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=288, PETRI_PLACES=134, PETRI_TRANSITIONS=128} [2024-11-16 23:50:33,077 INFO L277 CegarLoopForPetriNet]: 133 programPoint places, 1 predicate places. [2024-11-16 23:50:33,077 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 128 transitions, 288 flow [2024-11-16 23:50:33,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 125.25) internal successors, (501), 4 states have internal predecessors, (501), 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 23:50:33,077 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:33,077 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] [2024-11-16 23:50:33,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 23:50:33,078 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-16 23:50:33,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:33,078 INFO L85 PathProgramCache]: Analyzing trace with hash -761123072, now seen corresponding path program 1 times [2024-11-16 23:50:33,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:33,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219237003] [2024-11-16 23:50:33,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:33,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:33,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:33,109 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 23:50:33,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:33,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219237003] [2024-11-16 23:50:33,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219237003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:33,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:33,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:50:33,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276582666] [2024-11-16 23:50:33,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:33,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:50:33,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:33,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:50:33,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:50:33,133 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 149 [2024-11-16 23:50:33,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 128 transitions, 288 flow. Second operand has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 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 23:50:33,134 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:33,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 149 [2024-11-16 23:50:33,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:33,536 INFO L124 PetriNetUnfolderBase]: 1069/4292 cut-off events. [2024-11-16 23:50:33,536 INFO L125 PetriNetUnfolderBase]: For 381/420 co-relation queries the response was YES. [2024-11-16 23:50:33,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6166 conditions, 4292 events. 1069/4292 cut-off events. For 381/420 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 40376 event pairs, 597 based on Foata normal form. 2/3761 useless extension candidates. Maximal degree in co-relation 6028. Up to 1391 conditions per place. [2024-11-16 23:50:33,565 INFO L140 encePairwiseOnDemand]: 142/149 looper letters, 27 selfloop transitions, 6 changer transitions 0/141 dead transitions. [2024-11-16 23:50:33,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 141 transitions, 390 flow [2024-11-16 23:50:33,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:50:33,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:50:33,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 400 transitions. [2024-11-16 23:50:33,567 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8948545861297539 [2024-11-16 23:50:33,567 INFO L175 Difference]: Start difference. First operand has 134 places, 128 transitions, 288 flow. Second operand 3 states and 400 transitions. [2024-11-16 23:50:33,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 141 transitions, 390 flow [2024-11-16 23:50:33,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 141 transitions, 384 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:50:33,571 INFO L231 Difference]: Finished difference. Result has 136 places, 133 transitions, 328 flow [2024-11-16 23:50:33,571 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=328, PETRI_PLACES=136, PETRI_TRANSITIONS=133} [2024-11-16 23:50:33,573 INFO L277 CegarLoopForPetriNet]: 133 programPoint places, 3 predicate places. [2024-11-16 23:50:33,573 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 133 transitions, 328 flow [2024-11-16 23:50:33,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 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 23:50:33,573 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:33,574 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:50:33,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 23:50:33,574 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-16 23:50:33,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:33,575 INFO L85 PathProgramCache]: Analyzing trace with hash 777478158, now seen corresponding path program 1 times [2024-11-16 23:50:33,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:33,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66830324] [2024-11-16 23:50:33,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:33,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:33,683 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:50:33,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:33,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66830324] [2024-11-16 23:50:33,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66830324] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:50:33,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725022077] [2024-11-16 23:50:33,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:33,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:50:33,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:50:33,690 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 23:50:33,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 23:50:33,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:33,773 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-16 23:50:33,778 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:50:33,909 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:50:33,910 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:50:33,972 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:50:33,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [725022077] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:50:33,973 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:50:33,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-16 23:50:33,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227228347] [2024-11-16 23:50:33,973 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:50:33,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 23:50:33,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:33,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 23:50:33,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:50:34,137 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 149 [2024-11-16 23:50:34,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 133 transitions, 328 flow. Second operand has 13 states, 13 states have (on average 122.92307692307692) internal successors, (1598), 13 states have internal predecessors, (1598), 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 23:50:34,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:34,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 149 [2024-11-16 23:50:34,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:34,254 INFO L124 PetriNetUnfolderBase]: 81/465 cut-off events. [2024-11-16 23:50:34,254 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2024-11-16 23:50:34,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 677 conditions, 465 events. 81/465 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2410 event pairs, 6 based on Foata normal form. 15/459 useless extension candidates. Maximal degree in co-relation 338. Up to 56 conditions per place. [2024-11-16 23:50:34,256 INFO L140 encePairwiseOnDemand]: 143/149 looper letters, 28 selfloop transitions, 8 changer transitions 0/93 dead transitions. [2024-11-16 23:50:34,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 93 transitions, 298 flow [2024-11-16 23:50:34,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 23:50:34,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-16 23:50:34,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1248 transitions. [2024-11-16 23:50:34,258 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8375838926174497 [2024-11-16 23:50:34,259 INFO L175 Difference]: Start difference. First operand has 136 places, 133 transitions, 328 flow. Second operand 10 states and 1248 transitions. [2024-11-16 23:50:34,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 93 transitions, 298 flow [2024-11-16 23:50:34,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 93 transitions, 290 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:50:34,260 INFO L231 Difference]: Finished difference. Result has 85 places, 73 transitions, 194 flow [2024-11-16 23:50:34,260 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=194, PETRI_PLACES=85, PETRI_TRANSITIONS=73} [2024-11-16 23:50:34,261 INFO L277 CegarLoopForPetriNet]: 133 programPoint places, -48 predicate places. [2024-11-16 23:50:34,261 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 73 transitions, 194 flow [2024-11-16 23:50:34,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 122.92307692307692) internal successors, (1598), 13 states have internal predecessors, (1598), 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 23:50:34,262 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:34,262 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] [2024-11-16 23:50:34,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 23:50:34,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:50:34,465 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-16 23:50:34,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:34,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1353163402, now seen corresponding path program 1 times [2024-11-16 23:50:34,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:34,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859580340] [2024-11-16 23:50:34,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:34,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:34,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:34,518 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 23:50:34,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:34,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859580340] [2024-11-16 23:50:34,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859580340] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:34,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:34,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:50:34,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92609682] [2024-11-16 23:50:34,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:34,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:50:34,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:34,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:50:34,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:50:34,536 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 149 [2024-11-16 23:50:34,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 73 transitions, 194 flow. Second operand has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 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 23:50:34,537 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:34,537 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 149 [2024-11-16 23:50:34,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:34,571 INFO L124 PetriNetUnfolderBase]: 27/232 cut-off events. [2024-11-16 23:50:34,571 INFO L125 PetriNetUnfolderBase]: For 27/31 co-relation queries the response was YES. [2024-11-16 23:50:34,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 369 conditions, 232 events. 27/232 cut-off events. For 27/31 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 834 event pairs, 16 based on Foata normal form. 0/222 useless extension candidates. Maximal degree in co-relation 304. Up to 55 conditions per place. [2024-11-16 23:50:34,573 INFO L140 encePairwiseOnDemand]: 144/149 looper letters, 13 selfloop transitions, 5 changer transitions 0/78 dead transitions. [2024-11-16 23:50:34,573 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 78 transitions, 242 flow [2024-11-16 23:50:34,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:50:34,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:50:34,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 384 transitions. [2024-11-16 23:50:34,574 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8590604026845637 [2024-11-16 23:50:34,574 INFO L175 Difference]: Start difference. First operand has 85 places, 73 transitions, 194 flow. Second operand 3 states and 384 transitions. [2024-11-16 23:50:34,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 78 transitions, 242 flow [2024-11-16 23:50:34,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 78 transitions, 225 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-11-16 23:50:34,576 INFO L231 Difference]: Finished difference. Result has 83 places, 76 transitions, 213 flow [2024-11-16 23:50:34,576 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=213, PETRI_PLACES=83, PETRI_TRANSITIONS=76} [2024-11-16 23:50:34,576 INFO L277 CegarLoopForPetriNet]: 133 programPoint places, -50 predicate places. [2024-11-16 23:50:34,577 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 76 transitions, 213 flow [2024-11-16 23:50:34,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 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 23:50:34,577 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:34,577 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] [2024-11-16 23:50:34,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 23:50:34,577 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-16 23:50:34,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:34,578 INFO L85 PathProgramCache]: Analyzing trace with hash 2045130696, now seen corresponding path program 1 times [2024-11-16 23:50:34,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:34,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477395103] [2024-11-16 23:50:34,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:34,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:34,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:34,655 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 23:50:34,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:34,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477395103] [2024-11-16 23:50:34,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477395103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:34,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:34,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:50:34,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291766908] [2024-11-16 23:50:34,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:34,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:50:34,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:34,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:50:34,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:50:34,665 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 149 [2024-11-16 23:50:34,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 76 transitions, 213 flow. Second operand has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 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 23:50:34,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:34,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 149 [2024-11-16 23:50:34,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:34,682 INFO L124 PetriNetUnfolderBase]: 3/144 cut-off events. [2024-11-16 23:50:34,683 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-11-16 23:50:34,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 144 events. 3/144 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 274 event pairs, 0 based on Foata normal form. 2/145 useless extension candidates. Maximal degree in co-relation 147. Up to 10 conditions per place. [2024-11-16 23:50:34,683 INFO L140 encePairwiseOnDemand]: 145/149 looper letters, 4 selfloop transitions, 4 changer transitions 0/69 dead transitions. [2024-11-16 23:50:34,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 69 transitions, 194 flow [2024-11-16 23:50:34,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:50:34,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:50:34,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 400 transitions. [2024-11-16 23:50:34,685 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8948545861297539 [2024-11-16 23:50:34,685 INFO L175 Difference]: Start difference. First operand has 83 places, 76 transitions, 213 flow. Second operand 3 states and 400 transitions. [2024-11-16 23:50:34,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 69 transitions, 194 flow [2024-11-16 23:50:34,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 69 transitions, 174 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-11-16 23:50:34,686 INFO L231 Difference]: Finished difference. Result has 77 places, 68 transitions, 159 flow [2024-11-16 23:50:34,686 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=159, PETRI_PLACES=77, PETRI_TRANSITIONS=68} [2024-11-16 23:50:34,686 INFO L277 CegarLoopForPetriNet]: 133 programPoint places, -56 predicate places. [2024-11-16 23:50:34,687 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 68 transitions, 159 flow [2024-11-16 23:50:34,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 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 23:50:34,687 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:34,687 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:50:34,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 23:50:34,688 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-16 23:50:34,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:34,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1980515678, now seen corresponding path program 1 times [2024-11-16 23:50:34,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:34,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460348168] [2024-11-16 23:50:34,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:34,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:34,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:50:34,705 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:50:34,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:50:34,730 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:50:34,731 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:50:34,734 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-11-16 23:50:34,734 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2024-11-16 23:50:34,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2024-11-16 23:50:34,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2024-11-16 23:50:34,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2024-11-16 23:50:34,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 11 remaining) [2024-11-16 23:50:34,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2024-11-16 23:50:34,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2024-11-16 23:50:34,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2024-11-16 23:50:34,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2024-11-16 23:50:34,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2024-11-16 23:50:34,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 23:50:34,736 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:50:34,736 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:50:34,736 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-16 23:50:34,761 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2024-11-16 23:50:34,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 191 places, 185 transitions, 424 flow [2024-11-16 23:50:34,805 INFO L124 PetriNetUnfolderBase]: 40/697 cut-off events. [2024-11-16 23:50:34,806 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-11-16 23:50:34,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 753 conditions, 697 events. 40/697 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2847 event pairs, 6 based on Foata normal form. 0/610 useless extension candidates. Maximal degree in co-relation 746. Up to 32 conditions per place. [2024-11-16 23:50:34,809 INFO L82 GeneralOperation]: Start removeDead. Operand has 191 places, 185 transitions, 424 flow [2024-11-16 23:50:34,811 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 152 places, 148 transitions, 329 flow [2024-11-16 23:50:34,812 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:50:34,812 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;@4e089f8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:50:34,812 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-16 23:50:34,814 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:50:34,814 INFO L124 PetriNetUnfolderBase]: 1/37 cut-off events. [2024-11-16 23:50:34,814 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:50:34,814 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:34,814 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] [2024-11-16 23:50:34,814 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-16 23:50:34,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:34,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1153022176, now seen corresponding path program 1 times [2024-11-16 23:50:34,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:34,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422167708] [2024-11-16 23:50:34,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:34,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:34,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:34,932 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 23:50:34,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:34,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422167708] [2024-11-16 23:50:34,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422167708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:34,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:34,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:50:34,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741155735] [2024-11-16 23:50:34,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:34,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:50:34,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:34,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:50:34,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:50:35,060 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 185 [2024-11-16 23:50:35,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 148 transitions, 329 flow. Second operand has 6 states, 6 states have (on average 137.5) internal successors, (825), 6 states have internal predecessors, (825), 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 23:50:35,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:35,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 185 [2024-11-16 23:50:35,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:36,474 INFO L124 PetriNetUnfolderBase]: 4641/13907 cut-off events. [2024-11-16 23:50:36,474 INFO L125 PetriNetUnfolderBase]: For 901/901 co-relation queries the response was YES. [2024-11-16 23:50:36,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21318 conditions, 13907 events. 4641/13907 cut-off events. For 901/901 co-relation queries the response was YES. Maximal size of possible extension queue 372. Compared 145349 event pairs, 2591 based on Foata normal form. 285/13058 useless extension candidates. Maximal degree in co-relation 5000. Up to 6402 conditions per place. [2024-11-16 23:50:36,557 INFO L140 encePairwiseOnDemand]: 177/185 looper letters, 57 selfloop transitions, 5 changer transitions 0/169 dead transitions. [2024-11-16 23:50:36,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 169 transitions, 495 flow [2024-11-16 23:50:36,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:50:36,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:50:36,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 881 transitions. [2024-11-16 23:50:36,559 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7936936936936937 [2024-11-16 23:50:36,560 INFO L175 Difference]: Start difference. First operand has 152 places, 148 transitions, 329 flow. Second operand 6 states and 881 transitions. [2024-11-16 23:50:36,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 169 transitions, 495 flow [2024-11-16 23:50:36,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 169 transitions, 491 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:50:36,563 INFO L231 Difference]: Finished difference. Result has 154 places, 145 transitions, 329 flow [2024-11-16 23:50:36,564 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=329, PETRI_PLACES=154, PETRI_TRANSITIONS=145} [2024-11-16 23:50:36,564 INFO L277 CegarLoopForPetriNet]: 152 programPoint places, 2 predicate places. [2024-11-16 23:50:36,564 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 145 transitions, 329 flow [2024-11-16 23:50:36,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 137.5) internal successors, (825), 6 states have internal predecessors, (825), 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 23:50:36,565 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:36,565 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] [2024-11-16 23:50:36,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 23:50:36,565 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-16 23:50:36,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:36,565 INFO L85 PathProgramCache]: Analyzing trace with hash -253114675, now seen corresponding path program 1 times [2024-11-16 23:50:36,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:36,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487305164] [2024-11-16 23:50:36,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:36,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:36,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:36,592 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 23:50:36,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:36,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487305164] [2024-11-16 23:50:36,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487305164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:36,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:36,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 23:50:36,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379442471] [2024-11-16 23:50:36,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:36,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 23:50:36,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:36,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 23:50:36,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 23:50:36,619 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 185 [2024-11-16 23:50:36,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 145 transitions, 329 flow. Second operand has 4 states, 4 states have (on average 153.25) internal successors, (613), 4 states have internal predecessors, (613), 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 23:50:36,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:36,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 185 [2024-11-16 23:50:36,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:37,230 INFO L124 PetriNetUnfolderBase]: 1406/6423 cut-off events. [2024-11-16 23:50:37,230 INFO L125 PetriNetUnfolderBase]: For 782/782 co-relation queries the response was YES. [2024-11-16 23:50:37,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8880 conditions, 6423 events. 1406/6423 cut-off events. For 782/782 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 63002 event pairs, 529 based on Foata normal form. 1/5779 useless extension candidates. Maximal degree in co-relation 2767. Up to 1304 conditions per place. [2024-11-16 23:50:37,261 INFO L140 encePairwiseOnDemand]: 180/185 looper letters, 30 selfloop transitions, 4 changer transitions 0/156 dead transitions. [2024-11-16 23:50:37,262 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 156 transitions, 419 flow [2024-11-16 23:50:37,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 23:50:37,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 23:50:37,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 643 transitions. [2024-11-16 23:50:37,263 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8689189189189189 [2024-11-16 23:50:37,263 INFO L175 Difference]: Start difference. First operand has 154 places, 145 transitions, 329 flow. Second operand 4 states and 643 transitions. [2024-11-16 23:50:37,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 156 transitions, 419 flow [2024-11-16 23:50:37,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 156 transitions, 409 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:50:37,267 INFO L231 Difference]: Finished difference. Result has 153 places, 146 transitions, 335 flow [2024-11-16 23:50:37,267 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=335, PETRI_PLACES=153, PETRI_TRANSITIONS=146} [2024-11-16 23:50:37,268 INFO L277 CegarLoopForPetriNet]: 152 programPoint places, 1 predicate places. [2024-11-16 23:50:37,268 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 146 transitions, 335 flow [2024-11-16 23:50:37,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 153.25) internal successors, (613), 4 states have internal predecessors, (613), 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 23:50:37,268 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:37,268 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] [2024-11-16 23:50:37,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 23:50:37,269 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-16 23:50:37,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:37,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1158145583, now seen corresponding path program 1 times [2024-11-16 23:50:37,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:37,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831688013] [2024-11-16 23:50:37,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:37,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:37,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:37,290 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 23:50:37,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:37,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831688013] [2024-11-16 23:50:37,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831688013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:37,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:37,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:50:37,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055453548] [2024-11-16 23:50:37,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:37,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:50:37,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:37,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:50:37,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:50:37,315 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 185 [2024-11-16 23:50:37,315 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 146 transitions, 335 flow. Second operand has 3 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 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 23:50:37,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:37,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 185 [2024-11-16 23:50:37,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:39,729 INFO L124 PetriNetUnfolderBase]: 7641/22598 cut-off events. [2024-11-16 23:50:39,729 INFO L125 PetriNetUnfolderBase]: For 2760/2760 co-relation queries the response was YES. [2024-11-16 23:50:39,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34512 conditions, 22598 events. 7641/22598 cut-off events. For 2760/2760 co-relation queries the response was YES. Maximal size of possible extension queue 777. Compared 264780 event pairs, 5205 based on Foata normal form. 0/20158 useless extension candidates. Maximal degree in co-relation 34229. Up to 8993 conditions per place. [2024-11-16 23:50:40,011 INFO L140 encePairwiseOnDemand]: 177/185 looper letters, 36 selfloop transitions, 7 changer transitions 0/164 dead transitions. [2024-11-16 23:50:40,011 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 164 transitions, 477 flow [2024-11-16 23:50:40,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:50:40,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:50:40,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 488 transitions. [2024-11-16 23:50:40,013 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8792792792792793 [2024-11-16 23:50:40,013 INFO L175 Difference]: Start difference. First operand has 153 places, 146 transitions, 335 flow. Second operand 3 states and 488 transitions. [2024-11-16 23:50:40,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 164 transitions, 477 flow [2024-11-16 23:50:40,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 164 transitions, 471 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:50:40,026 INFO L231 Difference]: Finished difference. Result has 155 places, 152 transitions, 383 flow [2024-11-16 23:50:40,026 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=383, PETRI_PLACES=155, PETRI_TRANSITIONS=152} [2024-11-16 23:50:40,028 INFO L277 CegarLoopForPetriNet]: 152 programPoint places, 3 predicate places. [2024-11-16 23:50:40,028 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 152 transitions, 383 flow [2024-11-16 23:50:40,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 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 23:50:40,029 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:40,029 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:50:40,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 23:50:40,029 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-16 23:50:40,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:40,030 INFO L85 PathProgramCache]: Analyzing trace with hash -216093545, now seen corresponding path program 1 times [2024-11-16 23:50:40,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:40,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835709254] [2024-11-16 23:50:40,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:40,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:40,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:40,100 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:50:40,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:40,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835709254] [2024-11-16 23:50:40,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835709254] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:50:40,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619920201] [2024-11-16 23:50:40,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:40,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:50:40,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:50:40,105 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 23:50:40,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 23:50:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:40,177 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-16 23:50:40,178 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:50:40,248 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:50:40,248 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:50:40,300 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:50:40,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [619920201] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:50:40,300 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:50:40,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-16 23:50:40,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135382061] [2024-11-16 23:50:40,301 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:50:40,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 23:50:40,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:40,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 23:50:40,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:50:40,403 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 185 [2024-11-16 23:50:40,405 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 152 transitions, 383 flow. Second operand has 13 states, 13 states have (on average 150.92307692307693) internal successors, (1962), 13 states have internal predecessors, (1962), 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 23:50:40,405 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:40,405 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 185 [2024-11-16 23:50:40,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:42,380 INFO L124 PetriNetUnfolderBase]: 4563/18216 cut-off events. [2024-11-16 23:50:42,380 INFO L125 PetriNetUnfolderBase]: For 1939/2091 co-relation queries the response was YES. [2024-11-16 23:50:42,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26763 conditions, 18216 events. 4563/18216 cut-off events. For 1939/2091 co-relation queries the response was YES. Maximal size of possible extension queue 506. Compared 216123 event pairs, 1069 based on Foata normal form. 15/15740 useless extension candidates. Maximal degree in co-relation 7460. Up to 2740 conditions per place. [2024-11-16 23:50:42,500 INFO L140 encePairwiseOnDemand]: 177/185 looper letters, 56 selfloop transitions, 11 changer transitions 0/192 dead transitions. [2024-11-16 23:50:42,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 192 transitions, 599 flow [2024-11-16 23:50:42,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 23:50:42,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-16 23:50:42,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1559 transitions. [2024-11-16 23:50:42,503 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8427027027027028 [2024-11-16 23:50:42,503 INFO L175 Difference]: Start difference. First operand has 155 places, 152 transitions, 383 flow. Second operand 10 states and 1559 transitions. [2024-11-16 23:50:42,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 192 transitions, 599 flow [2024-11-16 23:50:42,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 192 transitions, 585 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:50:42,514 INFO L231 Difference]: Finished difference. Result has 165 places, 158 transitions, 425 flow [2024-11-16 23:50:42,514 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=369, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=425, PETRI_PLACES=165, PETRI_TRANSITIONS=158} [2024-11-16 23:50:42,515 INFO L277 CegarLoopForPetriNet]: 152 programPoint places, 13 predicate places. [2024-11-16 23:50:42,515 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 158 transitions, 425 flow [2024-11-16 23:50:42,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 150.92307692307693) internal successors, (1962), 13 states have internal predecessors, (1962), 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 23:50:42,517 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:42,517 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] [2024-11-16 23:50:42,532 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 23:50:42,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-16 23:50:42,718 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-16 23:50:42,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:42,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1592093844, now seen corresponding path program 1 times [2024-11-16 23:50:42,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:42,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105962002] [2024-11-16 23:50:42,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:42,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:42,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:42,748 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 23:50:42,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:42,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105962002] [2024-11-16 23:50:42,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105962002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:42,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:42,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:50:42,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428591014] [2024-11-16 23:50:42,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:42,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:50:42,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:42,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:50:42,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:50:42,773 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 185 [2024-11-16 23:50:42,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 158 transitions, 425 flow. Second operand has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 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 23:50:42,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:42,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 185 [2024-11-16 23:50:42,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:46,746 INFO L124 PetriNetUnfolderBase]: 12466/38077 cut-off events. [2024-11-16 23:50:46,746 INFO L125 PetriNetUnfolderBase]: For 8688/9552 co-relation queries the response was YES. [2024-11-16 23:50:46,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64834 conditions, 38077 events. 12466/38077 cut-off events. For 8688/9552 co-relation queries the response was YES. Maximal size of possible extension queue 1313. Compared 483410 event pairs, 7627 based on Foata normal form. 28/33714 useless extension candidates. Maximal degree in co-relation 64160. Up to 13990 conditions per place. [2024-11-16 23:50:47,113 INFO L140 encePairwiseOnDemand]: 177/185 looper letters, 38 selfloop transitions, 11 changer transitions 0/178 dead transitions. [2024-11-16 23:50:47,114 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 178 transitions, 592 flow [2024-11-16 23:50:47,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:50:47,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:50:47,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 487 transitions. [2024-11-16 23:50:47,119 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8774774774774775 [2024-11-16 23:50:47,119 INFO L175 Difference]: Start difference. First operand has 165 places, 158 transitions, 425 flow. Second operand 3 states and 487 transitions. [2024-11-16 23:50:47,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 178 transitions, 592 flow [2024-11-16 23:50:47,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 178 transitions, 584 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-16 23:50:47,174 INFO L231 Difference]: Finished difference. Result has 167 places, 167 transitions, 513 flow [2024-11-16 23:50:47,175 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=417, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=513, PETRI_PLACES=167, PETRI_TRANSITIONS=167} [2024-11-16 23:50:47,175 INFO L277 CegarLoopForPetriNet]: 152 programPoint places, 15 predicate places. [2024-11-16 23:50:47,175 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 167 transitions, 513 flow [2024-11-16 23:50:47,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 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 23:50:47,176 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:47,176 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] [2024-11-16 23:50:47,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 23:50:47,176 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-16 23:50:47,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:47,176 INFO L85 PathProgramCache]: Analyzing trace with hash 913508344, now seen corresponding path program 1 times [2024-11-16 23:50:47,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:47,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956992635] [2024-11-16 23:50:47,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:47,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:47,250 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 23:50:47,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:47,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956992635] [2024-11-16 23:50:47,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956992635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:47,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:47,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:50:47,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446989414] [2024-11-16 23:50:47,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:47,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:50:47,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:47,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:50:47,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:50:47,261 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 185 [2024-11-16 23:50:47,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 167 transitions, 513 flow. Second operand has 3 states, 3 states have (on average 159.66666666666666) internal successors, (479), 3 states have internal predecessors, (479), 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 23:50:47,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:47,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 185 [2024-11-16 23:50:47,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:47,837 INFO L124 PetriNetUnfolderBase]: 562/5180 cut-off events. [2024-11-16 23:50:47,837 INFO L125 PetriNetUnfolderBase]: For 1152/1152 co-relation queries the response was YES. [2024-11-16 23:50:47,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7833 conditions, 5180 events. 562/5180 cut-off events. For 1152/1152 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 54840 event pairs, 329 based on Foata normal form. 170/4928 useless extension candidates. Maximal degree in co-relation 7550. Up to 545 conditions per place. [2024-11-16 23:50:47,870 INFO L140 encePairwiseOnDemand]: 177/185 looper letters, 16 selfloop transitions, 8 changer transitions 0/165 dead transitions. [2024-11-16 23:50:47,870 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 165 transitions, 530 flow [2024-11-16 23:50:47,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:50:47,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:50:47,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 502 transitions. [2024-11-16 23:50:47,872 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9045045045045045 [2024-11-16 23:50:47,872 INFO L175 Difference]: Start difference. First operand has 167 places, 167 transitions, 513 flow. Second operand 3 states and 502 transitions. [2024-11-16 23:50:47,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 165 transitions, 530 flow [2024-11-16 23:50:47,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 165 transitions, 518 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-16 23:50:47,883 INFO L231 Difference]: Finished difference. Result has 167 places, 158 transitions, 449 flow [2024-11-16 23:50:47,883 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=433, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=449, PETRI_PLACES=167, PETRI_TRANSITIONS=158} [2024-11-16 23:50:47,884 INFO L277 CegarLoopForPetriNet]: 152 programPoint places, 15 predicate places. [2024-11-16 23:50:47,884 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 158 transitions, 449 flow [2024-11-16 23:50:47,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 159.66666666666666) internal successors, (479), 3 states have internal predecessors, (479), 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 23:50:47,884 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:47,885 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 23:50:47,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 23:50:47,885 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-16 23:50:47,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:47,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1362646760, now seen corresponding path program 1 times [2024-11-16 23:50:47,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:47,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271068831] [2024-11-16 23:50:47,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:47,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:47,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:47,933 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-16 23:50:47,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:47,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271068831] [2024-11-16 23:50:47,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271068831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:47,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:47,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:50:47,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434688067] [2024-11-16 23:50:47,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:47,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:50:47,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:47,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:50:47,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:50:47,957 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 185 [2024-11-16 23:50:47,957 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 158 transitions, 449 flow. Second operand has 3 states, 3 states have (on average 150.33333333333334) internal successors, (451), 3 states have internal predecessors, (451), 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 23:50:47,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:47,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 185 [2024-11-16 23:50:47,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:48,576 INFO L124 PetriNetUnfolderBase]: 1009/6819 cut-off events. [2024-11-16 23:50:48,577 INFO L125 PetriNetUnfolderBase]: For 3035/3038 co-relation queries the response was YES. [2024-11-16 23:50:48,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11575 conditions, 6819 events. 1009/6819 cut-off events. For 3035/3038 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 77037 event pairs, 730 based on Foata normal form. 1/6112 useless extension candidates. Maximal degree in co-relation 11253. Up to 1702 conditions per place. [2024-11-16 23:50:48,616 INFO L140 encePairwiseOnDemand]: 180/185 looper letters, 30 selfloop transitions, 4 changer transitions 0/165 dead transitions. [2024-11-16 23:50:48,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 165 transitions, 543 flow [2024-11-16 23:50:48,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:50:48,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:50:48,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 477 transitions. [2024-11-16 23:50:48,618 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8594594594594595 [2024-11-16 23:50:48,618 INFO L175 Difference]: Start difference. First operand has 167 places, 158 transitions, 449 flow. Second operand 3 states and 477 transitions. [2024-11-16 23:50:48,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 165 transitions, 543 flow [2024-11-16 23:50:48,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 165 transitions, 535 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:50:48,629 INFO L231 Difference]: Finished difference. Result has 170 places, 161 transitions, 475 flow [2024-11-16 23:50:48,629 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=441, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=475, PETRI_PLACES=170, PETRI_TRANSITIONS=161} [2024-11-16 23:50:48,629 INFO L277 CegarLoopForPetriNet]: 152 programPoint places, 18 predicate places. [2024-11-16 23:50:48,629 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 161 transitions, 475 flow [2024-11-16 23:50:48,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 150.33333333333334) internal successors, (451), 3 states have internal predecessors, (451), 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 23:50:48,629 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:48,630 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:50:48,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 23:50:48,630 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-16 23:50:48,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:48,630 INFO L85 PathProgramCache]: Analyzing trace with hash 144583673, now seen corresponding path program 1 times [2024-11-16 23:50:48,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:48,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44487212] [2024-11-16 23:50:48,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:48,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:48,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:50:48,648 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:50:48,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:50:48,662 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:50:48,662 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:50:48,662 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-11-16 23:50:48,662 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2024-11-16 23:50:48,662 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2024-11-16 23:50:48,663 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2024-11-16 23:50:48,663 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2024-11-16 23:50:48,663 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 13 remaining) [2024-11-16 23:50:48,663 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (6 of 13 remaining) [2024-11-16 23:50:48,663 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2024-11-16 23:50:48,663 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2024-11-16 23:50:48,663 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2024-11-16 23:50:48,663 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2024-11-16 23:50:48,663 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2024-11-16 23:50:48,663 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2024-11-16 23:50:48,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 23:50:48,664 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:50:48,664 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:50:48,664 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-16 23:50:48,698 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-16 23:50:48,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 229 places, 221 transitions, 522 flow [2024-11-16 23:50:48,804 INFO L124 PetriNetUnfolderBase]: 90/1214 cut-off events. [2024-11-16 23:50:48,804 INFO L125 PetriNetUnfolderBase]: For 96/96 co-relation queries the response was YES. [2024-11-16 23:50:48,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1327 conditions, 1214 events. 90/1214 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 5995 event pairs, 23 based on Foata normal form. 0/1057 useless extension candidates. Maximal degree in co-relation 1318. Up to 80 conditions per place. [2024-11-16 23:50:48,811 INFO L82 GeneralOperation]: Start removeDead. Operand has 229 places, 221 transitions, 522 flow [2024-11-16 23:50:48,815 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 171 places, 166 transitions, 378 flow [2024-11-16 23:50:48,817 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:50:48,818 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;@4e089f8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:50:48,818 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-16 23:50:48,821 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:50:48,821 INFO L124 PetriNetUnfolderBase]: 1/37 cut-off events. [2024-11-16 23:50:48,821 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:50:48,821 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:48,821 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] [2024-11-16 23:50:48,821 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-16 23:50:48,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:48,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1949979296, now seen corresponding path program 1 times [2024-11-16 23:50:48,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:48,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047498834] [2024-11-16 23:50:48,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:48,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:48,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:49,062 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 23:50:49,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:49,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047498834] [2024-11-16 23:50:49,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047498834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:49,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:49,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:50:49,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623107941] [2024-11-16 23:50:49,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:49,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:50:49,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:49,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:50:49,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:50:49,272 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 221 [2024-11-16 23:50:49,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 166 transitions, 378 flow. Second operand has 6 states, 6 states have (on average 165.5) internal successors, (993), 6 states have internal predecessors, (993), 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 23:50:49,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:49,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 221 [2024-11-16 23:50:49,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:55,958 INFO L124 PetriNetUnfolderBase]: 22557/57217 cut-off events. [2024-11-16 23:50:55,958 INFO L125 PetriNetUnfolderBase]: For 4405/4405 co-relation queries the response was YES. [2024-11-16 23:50:56,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90427 conditions, 57217 events. 22557/57217 cut-off events. For 4405/4405 co-relation queries the response was YES. Maximal size of possible extension queue 1492. Compared 684940 event pairs, 4473 based on Foata normal form. 1104/53842 useless extension candidates. Maximal degree in co-relation 21445. Up to 29151 conditions per place. [2024-11-16 23:50:56,455 INFO L140 encePairwiseOnDemand]: 213/221 looper letters, 69 selfloop transitions, 5 changer transitions 0/195 dead transitions. [2024-11-16 23:50:56,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 195 transitions, 584 flow [2024-11-16 23:50:56,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:50:56,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:50:56,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1061 transitions. [2024-11-16 23:50:56,457 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8001508295625943 [2024-11-16 23:50:56,457 INFO L175 Difference]: Start difference. First operand has 171 places, 166 transitions, 378 flow. Second operand 6 states and 1061 transitions. [2024-11-16 23:50:56,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 195 transitions, 584 flow [2024-11-16 23:50:56,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 195 transitions, 580 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:50:56,464 INFO L231 Difference]: Finished difference. Result has 173 places, 163 transitions, 378 flow [2024-11-16 23:50:56,464 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=378, PETRI_PLACES=173, PETRI_TRANSITIONS=163} [2024-11-16 23:50:56,464 INFO L277 CegarLoopForPetriNet]: 171 programPoint places, 2 predicate places. [2024-11-16 23:50:56,464 INFO L471 AbstractCegarLoop]: Abstraction has has 173 places, 163 transitions, 378 flow [2024-11-16 23:50:56,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 165.5) internal successors, (993), 6 states have internal predecessors, (993), 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 23:50:56,465 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:56,465 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] [2024-11-16 23:50:56,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 23:50:56,465 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-16 23:50:56,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:56,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1450650649, now seen corresponding path program 1 times [2024-11-16 23:50:56,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:56,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423409080] [2024-11-16 23:50:56,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:56,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:56,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:56,496 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 23:50:56,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:56,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423409080] [2024-11-16 23:50:56,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423409080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:56,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:56,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 23:50:56,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198650905] [2024-11-16 23:50:56,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:56,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 23:50:56,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:56,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 23:50:56,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 23:50:56,522 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 221 [2024-11-16 23:50:56,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 163 transitions, 378 flow. Second operand has 4 states, 4 states have (on average 181.25) internal successors, (725), 4 states have internal predecessors, (725), 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 23:50:56,523 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:56,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 221 [2024-11-16 23:50:56,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:59,128 INFO L124 PetriNetUnfolderBase]: 6974/24779 cut-off events. [2024-11-16 23:50:59,129 INFO L125 PetriNetUnfolderBase]: For 4016/4016 co-relation queries the response was YES. [2024-11-16 23:50:59,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35871 conditions, 24779 events. 6974/24779 cut-off events. For 4016/4016 co-relation queries the response was YES. Maximal size of possible extension queue 641. Compared 290968 event pairs, 3483 based on Foata normal form. 1/22441 useless extension candidates. Maximal degree in co-relation 19272. Up to 5916 conditions per place. [2024-11-16 23:50:59,317 INFO L140 encePairwiseOnDemand]: 216/221 looper letters, 36 selfloop transitions, 4 changer transitions 0/176 dead transitions. [2024-11-16 23:50:59,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 176 transitions, 484 flow [2024-11-16 23:50:59,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 23:50:59,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 23:50:59,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 761 transitions. [2024-11-16 23:50:59,319 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8608597285067874 [2024-11-16 23:50:59,319 INFO L175 Difference]: Start difference. First operand has 173 places, 163 transitions, 378 flow. Second operand 4 states and 761 transitions. [2024-11-16 23:50:59,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 176 transitions, 484 flow [2024-11-16 23:50:59,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 176 transitions, 474 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:50:59,324 INFO L231 Difference]: Finished difference. Result has 172 places, 164 transitions, 384 flow [2024-11-16 23:50:59,324 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=384, PETRI_PLACES=172, PETRI_TRANSITIONS=164} [2024-11-16 23:50:59,324 INFO L277 CegarLoopForPetriNet]: 171 programPoint places, 1 predicate places. [2024-11-16 23:50:59,324 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 164 transitions, 384 flow [2024-11-16 23:50:59,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 181.25) internal successors, (725), 4 states have internal predecessors, (725), 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 23:50:59,325 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:59,325 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] [2024-11-16 23:50:59,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 23:50:59,325 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-16 23:50:59,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:59,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1964760638, now seen corresponding path program 1 times [2024-11-16 23:50:59,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:59,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470029635] [2024-11-16 23:50:59,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:59,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:59,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:59,371 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 23:50:59,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:59,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470029635] [2024-11-16 23:50:59,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470029635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:59,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:59,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:50:59,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021032855] [2024-11-16 23:50:59,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:59,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:50:59,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:59,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:50:59,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:50:59,408 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 221 [2024-11-16 23:50:59,409 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 164 transitions, 384 flow. Second operand has 3 states, 3 states have (on average 175.66666666666666) internal successors, (527), 3 states have internal predecessors, (527), 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 23:50:59,409 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:59,410 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 221 [2024-11-16 23:50:59,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:51:13,349 INFO L124 PetriNetUnfolderBase]: 48754/122538 cut-off events. [2024-11-16 23:51:13,350 INFO L125 PetriNetUnfolderBase]: For 18880/18880 co-relation queries the response was YES. [2024-11-16 23:51:14,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193843 conditions, 122538 events. 48754/122538 cut-off events. For 18880/18880 co-relation queries the response was YES. Maximal size of possible extension queue 3607. Compared 1655965 event pairs, 34341 based on Foata normal form. 0/109919 useless extension candidates. Maximal degree in co-relation 192800. Up to 54063 conditions per place.