./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-race-challenges/thread-join-array-const.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.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 3fabc1cc94c3126ff26eb9b915167fe6a6af37b0806df7c41554f022c4d5bcac --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:50:32,898 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:50:32,977 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-16 23:50:32,981 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:50:32,981 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:50:33,022 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:50:33,022 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:50:33,023 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:50:33,023 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:50:33,023 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:50:33,024 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:50:33,024 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:50:33,024 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:50:33,024 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:50:33,024 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:50:33,025 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:50:33,025 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:50:33,027 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:50:33,028 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:50:33,028 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:50:33,028 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:50:33,031 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:50:33,031 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-16 23:50:33,031 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:50:33,031 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:50:33,032 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:50:33,032 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:50:33,032 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:50:33,032 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:50:33,032 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:50:33,033 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:50:33,033 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:50:33,033 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:50:33,033 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:50:33,033 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:50:33,033 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:50:33,034 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:50:33,034 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:50:33,037 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:50:33,037 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:50:33,037 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:50:33,038 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3fabc1cc94c3126ff26eb9b915167fe6a6af37b0806df7c41554f022c4d5bcac [2024-11-16 23:50:33,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:50:33,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:50:33,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:50:33,295 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:50:33,295 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:50:33,297 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-race-challenges/thread-join-array-const.i [2024-11-16 23:50:34,654 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:50:34,865 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:50:34,866 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/thread-join-array-const.i [2024-11-16 23:50:34,882 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd866aa93/17c374947c7b493eb452f33f9f7d5435/FLAG8ae1cc884 [2024-11-16 23:50:34,896 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd866aa93/17c374947c7b493eb452f33f9f7d5435 [2024-11-16 23:50:34,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:50:34,899 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:50:34,900 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:50:34,900 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:50:34,908 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:50:34,911 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:50:34" (1/1) ... [2024-11-16 23:50:34,916 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47a1b035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:34, skipping insertion in model container [2024-11-16 23:50:34,916 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:50:34" (1/1) ... [2024-11-16 23:50:34,951 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:50:35,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:50:35,226 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:50:35,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:50:35,346 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:50:35,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:35 WrapperNode [2024-11-16 23:50:35,347 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:50:35,348 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:50:35,348 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:50:35,348 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:50:35,355 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:35" (1/1) ... [2024-11-16 23:50:35,365 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:35" (1/1) ... [2024-11-16 23:50:35,381 INFO L138 Inliner]: procedures = 158, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 59 [2024-11-16 23:50:35,381 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:50:35,382 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:50:35,382 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:50:35,382 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:50:35,389 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:35" (1/1) ... [2024-11-16 23:50:35,389 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:35" (1/1) ... [2024-11-16 23:50:35,391 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:35" (1/1) ... [2024-11-16 23:50:35,392 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:35" (1/1) ... [2024-11-16 23:50:35,396 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:35" (1/1) ... [2024-11-16 23:50:35,397 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:35" (1/1) ... [2024-11-16 23:50:35,398 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:35" (1/1) ... [2024-11-16 23:50:35,399 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:35" (1/1) ... [2024-11-16 23:50:35,401 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:50:35,401 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:50:35,401 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:50:35,401 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:50:35,402 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:35" (1/1) ... [2024-11-16 23:50:35,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:50:35,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:50:35,430 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 23:50:35,440 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 23:50:35,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-16 23:50:35,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-16 23:50:35,476 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-16 23:50:35,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:50:35,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 23:50:35,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 23:50:35,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 23:50:35,476 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-16 23:50:35,476 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-16 23:50:35,476 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-16 23:50:35,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:50:35,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:50:35,478 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 23:50:35,628 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:50:35,629 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:50:35,765 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L691: havoc main_~#tids~0#1.base, main_~#tids~0#1.offset; [2024-11-16 23:50:35,765 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 23:50:35,782 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 23:50:35,783 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:50:35,804 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:50:35,805 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:50:35,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:50:35 BoogieIcfgContainer [2024-11-16 23:50:35,805 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:50:35,807 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:50:35,807 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:50:35,810 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:50:35,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:50:34" (1/3) ... [2024-11-16 23:50:35,811 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@246b3c03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:50:35, skipping insertion in model container [2024-11-16 23:50:35,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:35" (2/3) ... [2024-11-16 23:50:35,812 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@246b3c03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:50:35, skipping insertion in model container [2024-11-16 23:50:35,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:50:35" (3/3) ... [2024-11-16 23:50:35,813 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-array-const.i [2024-11-16 23:50:35,827 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:50:35,827 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-16 23:50:35,829 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 23:50:35,875 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-16 23:50:35,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 81 transitions, 169 flow [2024-11-16 23:50:35,943 INFO L124 PetriNetUnfolderBase]: 5/118 cut-off events. [2024-11-16 23:50:35,944 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-16 23:50:35,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 118 events. 5/118 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 226 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 59. Up to 4 conditions per place. [2024-11-16 23:50:35,952 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 81 transitions, 169 flow [2024-11-16 23:50:35,955 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 81 transitions, 169 flow [2024-11-16 23:50:35,962 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:50:35,966 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;@37406721, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:50:35,967 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-16 23:50:35,973 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:50:35,974 INFO L124 PetriNetUnfolderBase]: 2/35 cut-off events. [2024-11-16 23:50:35,974 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:50:35,974 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:35,974 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] [2024-11-16 23:50:35,975 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-16 23:50:35,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:35,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1845696226, now seen corresponding path program 1 times [2024-11-16 23:50:35,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:35,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589247445] [2024-11-16 23:50:35,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:35,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:36,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:36,158 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 23:50:36,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:36,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589247445] [2024-11-16 23:50:36,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589247445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:36,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:36,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:50:36,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877161970] [2024-11-16 23:50:36,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:36,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:50:36,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:36,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:50:36,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:50:36,217 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 81 [2024-11-16 23:50:36,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 81 transitions, 169 flow. Second operand has 2 states, 2 states have (on average 76.0) internal successors, (152), 2 states have internal predecessors, (152), 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 23:50:36,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:36,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 81 [2024-11-16 23:50:36,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:36,279 INFO L124 PetriNetUnfolderBase]: 1/114 cut-off events. [2024-11-16 23:50:36,284 INFO L125 PetriNetUnfolderBase]: For 6/8 co-relation queries the response was YES. [2024-11-16 23:50:36,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 114 events. 1/114 cut-off events. For 6/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 212 event pairs, 0 based on Foata normal form. 6/109 useless extension candidates. Maximal degree in co-relation 4. Up to 5 conditions per place. [2024-11-16 23:50:36,285 INFO L140 encePairwiseOnDemand]: 79/81 looper letters, 4 selfloop transitions, 0 changer transitions 0/79 dead transitions. [2024-11-16 23:50:36,286 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 79 transitions, 173 flow [2024-11-16 23:50:36,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:50:36,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:50:36,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 156 transitions. [2024-11-16 23:50:36,302 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9629629629629629 [2024-11-16 23:50:36,304 INFO L175 Difference]: Start difference. First operand has 81 places, 81 transitions, 169 flow. Second operand 2 states and 156 transitions. [2024-11-16 23:50:36,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 79 transitions, 173 flow [2024-11-16 23:50:36,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 79 transitions, 173 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:50:36,315 INFO L231 Difference]: Finished difference. Result has 82 places, 79 transitions, 165 flow [2024-11-16 23:50:36,320 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=165, PETRI_PLACES=82, PETRI_TRANSITIONS=79} [2024-11-16 23:50:36,324 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 1 predicate places. [2024-11-16 23:50:36,327 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 79 transitions, 165 flow [2024-11-16 23:50:36,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 76.0) internal successors, (152), 2 states have internal predecessors, (152), 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 23:50:36,327 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:36,328 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] [2024-11-16 23:50:36,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:50:36,328 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-16 23:50:36,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:36,329 INFO L85 PathProgramCache]: Analyzing trace with hash 61612866, now seen corresponding path program 1 times [2024-11-16 23:50:36,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:36,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698882112] [2024-11-16 23:50:36,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:36,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:36,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:36,514 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 23:50:36,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:36,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698882112] [2024-11-16 23:50:36,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698882112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:36,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:36,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 23:50:36,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263287132] [2024-11-16 23:50:36,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:36,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 23:50:36,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:36,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 23:50:36,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 23:50:36,567 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 81 [2024-11-16 23:50:36,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 79 transitions, 165 flow. Second operand has 4 states, 4 states have (on average 69.25) internal successors, (277), 4 states have internal predecessors, (277), 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 23:50:36,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:36,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 81 [2024-11-16 23:50:36,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:36,618 INFO L124 PetriNetUnfolderBase]: 8/184 cut-off events. [2024-11-16 23:50:36,618 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-16 23:50:36,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 184 events. 8/184 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 548 event pairs, 2 based on Foata normal form. 1/166 useless extension candidates. Maximal degree in co-relation 215. Up to 17 conditions per place. [2024-11-16 23:50:36,620 INFO L140 encePairwiseOnDemand]: 76/81 looper letters, 10 selfloop transitions, 4 changer transitions 1/83 dead transitions. [2024-11-16 23:50:36,620 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 83 transitions, 203 flow [2024-11-16 23:50:36,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 23:50:36,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 23:50:36,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 288 transitions. [2024-11-16 23:50:36,622 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2024-11-16 23:50:36,623 INFO L175 Difference]: Start difference. First operand has 82 places, 79 transitions, 165 flow. Second operand 4 states and 288 transitions. [2024-11-16 23:50:36,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 83 transitions, 203 flow [2024-11-16 23:50:36,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 83 transitions, 203 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:50:36,626 INFO L231 Difference]: Finished difference. Result has 86 places, 79 transitions, 177 flow [2024-11-16 23:50:36,626 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=177, PETRI_PLACES=86, PETRI_TRANSITIONS=79} [2024-11-16 23:50:36,627 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 5 predicate places. [2024-11-16 23:50:36,627 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 79 transitions, 177 flow [2024-11-16 23:50:36,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.25) internal successors, (277), 4 states have internal predecessors, (277), 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 23:50:36,627 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:36,628 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 23:50:36,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:50:36,628 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-16 23:50:36,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:36,629 INFO L85 PathProgramCache]: Analyzing trace with hash 899739946, now seen corresponding path program 1 times [2024-11-16 23:50:36,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:36,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653114100] [2024-11-16 23:50:36,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:36,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:36,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:36,981 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 23:50:36,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:36,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653114100] [2024-11-16 23:50:36,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653114100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:36,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:36,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:50:36,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403791438] [2024-11-16 23:50:36,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:36,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:50:36,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:36,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:50:36,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:50:37,093 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 81 [2024-11-16 23:50:37,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 79 transitions, 177 flow. Second operand has 6 states, 6 states have (on average 57.5) internal successors, (345), 6 states have internal predecessors, (345), 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 23:50:37,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:37,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 81 [2024-11-16 23:50:37,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:37,167 INFO L124 PetriNetUnfolderBase]: 30/219 cut-off events. [2024-11-16 23:50:37,167 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-16 23:50:37,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 219 events. 30/219 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 872 event pairs, 4 based on Foata normal form. 0/204 useless extension candidates. Maximal degree in co-relation 331. Up to 62 conditions per place. [2024-11-16 23:50:37,170 INFO L140 encePairwiseOnDemand]: 75/81 looper letters, 25 selfloop transitions, 5 changer transitions 0/86 dead transitions. [2024-11-16 23:50:37,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 86 transitions, 251 flow [2024-11-16 23:50:37,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:50:37,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:50:37,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 367 transitions. [2024-11-16 23:50:37,174 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7551440329218106 [2024-11-16 23:50:37,175 INFO L175 Difference]: Start difference. First operand has 86 places, 79 transitions, 177 flow. Second operand 6 states and 367 transitions. [2024-11-16 23:50:37,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 86 transitions, 251 flow [2024-11-16 23:50:37,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 86 transitions, 243 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-16 23:50:37,177 INFO L231 Difference]: Finished difference. Result has 87 places, 78 transitions, 177 flow [2024-11-16 23:50:37,178 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=177, PETRI_PLACES=87, PETRI_TRANSITIONS=78} [2024-11-16 23:50:37,178 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 6 predicate places. [2024-11-16 23:50:37,179 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 78 transitions, 177 flow [2024-11-16 23:50:37,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 57.5) internal successors, (345), 6 states have internal predecessors, (345), 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 23:50:37,179 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:37,180 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 23:50:37,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 23:50:37,180 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-16 23:50:37,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:37,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1197987, now seen corresponding path program 1 times [2024-11-16 23:50:37,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:37,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988926734] [2024-11-16 23:50:37,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:37,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:37,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:37,222 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 23:50:37,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:37,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988926734] [2024-11-16 23:50:37,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988926734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:37,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:37,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:50:37,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091624162] [2024-11-16 23:50:37,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:37,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:50:37,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:37,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:50:37,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:50:37,234 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 81 [2024-11-16 23:50:37,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 78 transitions, 177 flow. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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 23:50:37,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:37,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 81 [2024-11-16 23:50:37,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:37,257 INFO L124 PetriNetUnfolderBase]: 6/147 cut-off events. [2024-11-16 23:50:37,258 INFO L125 PetriNetUnfolderBase]: For 4/10 co-relation queries the response was YES. [2024-11-16 23:50:37,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 147 events. 6/147 cut-off events. For 4/10 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 377 event pairs, 4 based on Foata normal form. 1/134 useless extension candidates. Maximal degree in co-relation 186. Up to 21 conditions per place. [2024-11-16 23:50:37,259 INFO L140 encePairwiseOnDemand]: 76/81 looper letters, 9 selfloop transitions, 4 changer transitions 0/81 dead transitions. [2024-11-16 23:50:37,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 81 transitions, 209 flow [2024-11-16 23:50:37,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:50:37,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:50:37,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 221 transitions. [2024-11-16 23:50:37,262 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9094650205761317 [2024-11-16 23:50:37,262 INFO L175 Difference]: Start difference. First operand has 87 places, 78 transitions, 177 flow. Second operand 3 states and 221 transitions. [2024-11-16 23:50:37,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 81 transitions, 209 flow [2024-11-16 23:50:37,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 81 transitions, 199 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:50:37,266 INFO L231 Difference]: Finished difference. Result has 86 places, 81 transitions, 197 flow [2024-11-16 23:50:37,266 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=197, PETRI_PLACES=86, PETRI_TRANSITIONS=81} [2024-11-16 23:50:37,266 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 5 predicate places. [2024-11-16 23:50:37,267 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 81 transitions, 197 flow [2024-11-16 23:50:37,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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 23:50:37,267 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:37,267 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] [2024-11-16 23:50:37,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 23:50:37,267 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-16 23:50:37,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:37,268 INFO L85 PathProgramCache]: Analyzing trace with hash -238874136, now seen corresponding path program 1 times [2024-11-16 23:50:37,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:37,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012110348] [2024-11-16 23:50:37,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:37,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:37,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:37,340 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-16 23:50:37,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:37,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012110348] [2024-11-16 23:50:37,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012110348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:37,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:37,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 23:50:37,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923270317] [2024-11-16 23:50:37,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:37,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 23:50:37,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:37,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 23:50:37,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 23:50:37,394 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 81 [2024-11-16 23:50:37,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 81 transitions, 197 flow. Second operand has 4 states, 4 states have (on average 69.5) internal successors, (278), 4 states have internal predecessors, (278), 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 23:50:37,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:37,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 81 [2024-11-16 23:50:37,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:37,414 INFO L124 PetriNetUnfolderBase]: 2/119 cut-off events. [2024-11-16 23:50:37,414 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-16 23:50:37,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 119 events. 2/119 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 163 event pairs, 0 based on Foata normal form. 3/116 useless extension candidates. Maximal degree in co-relation 145. Up to 7 conditions per place. [2024-11-16 23:50:37,415 INFO L140 encePairwiseOnDemand]: 76/81 looper letters, 9 selfloop transitions, 3 changer transitions 7/79 dead transitions. [2024-11-16 23:50:37,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 79 transitions, 207 flow [2024-11-16 23:50:37,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 23:50:37,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 23:50:37,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 286 transitions. [2024-11-16 23:50:37,420 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8827160493827161 [2024-11-16 23:50:37,420 INFO L175 Difference]: Start difference. First operand has 86 places, 81 transitions, 197 flow. Second operand 4 states and 286 transitions. [2024-11-16 23:50:37,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 79 transitions, 207 flow [2024-11-16 23:50:37,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 79 transitions, 195 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-11-16 23:50:37,423 INFO L231 Difference]: Finished difference. Result has 85 places, 70 transitions, 161 flow [2024-11-16 23:50:37,423 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=161, PETRI_PLACES=85, PETRI_TRANSITIONS=70} [2024-11-16 23:50:37,425 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 4 predicate places. [2024-11-16 23:50:37,425 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 70 transitions, 161 flow [2024-11-16 23:50:37,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.5) internal successors, (278), 4 states have internal predecessors, (278), 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 23:50:37,425 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:37,426 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 23:50:37,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 23:50:37,426 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-16 23:50:37,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:37,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1025702988, now seen corresponding path program 1 times [2024-11-16 23:50:37,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:37,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162285777] [2024-11-16 23:50:37,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:37,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:37,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:50:37,451 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:50:37,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:50:37,482 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:50:37,482 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:50:37,483 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-11-16 23:50:37,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2024-11-16 23:50:37,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2024-11-16 23:50:37,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2024-11-16 23:50:37,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2024-11-16 23:50:37,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2024-11-16 23:50:37,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 23:50:37,486 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-16 23:50:37,488 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:50:37,488 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-16 23:50:37,502 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-16 23:50:37,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 99 transitions, 214 flow [2024-11-16 23:50:37,525 INFO L124 PetriNetUnfolderBase]: 10/210 cut-off events. [2024-11-16 23:50:37,525 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-16 23:50:37,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 210 events. 10/210 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 481 event pairs, 0 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 120. Up to 8 conditions per place. [2024-11-16 23:50:37,527 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 99 transitions, 214 flow [2024-11-16 23:50:37,528 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 99 transitions, 214 flow [2024-11-16 23:50:37,529 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:50:37,530 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;@37406721, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:50:37,531 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-16 23:50:37,532 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:50:37,533 INFO L124 PetriNetUnfolderBase]: 2/35 cut-off events. [2024-11-16 23:50:37,533 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:50:37,533 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:37,534 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] [2024-11-16 23:50:37,534 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-16 23:50:37,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:37,534 INFO L85 PathProgramCache]: Analyzing trace with hash 114542910, now seen corresponding path program 1 times [2024-11-16 23:50:37,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:37,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876147172] [2024-11-16 23:50:37,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:37,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:37,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:37,546 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 23:50:37,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:37,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876147172] [2024-11-16 23:50:37,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876147172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:37,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:37,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:50:37,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72905667] [2024-11-16 23:50:37,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:37,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:50:37,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:37,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:50:37,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:50:37,548 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 99 [2024-11-16 23:50:37,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 99 transitions, 214 flow. Second operand has 2 states, 2 states have (on average 90.0) internal successors, (180), 2 states have internal predecessors, (180), 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 23:50:37,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:37,549 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 99 [2024-11-16 23:50:37,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:37,582 INFO L124 PetriNetUnfolderBase]: 13/323 cut-off events. [2024-11-16 23:50:37,582 INFO L125 PetriNetUnfolderBase]: For 43/65 co-relation queries the response was YES. [2024-11-16 23:50:37,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 376 conditions, 323 events. 13/323 cut-off events. For 43/65 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1120 event pairs, 10 based on Foata normal form. 21/309 useless extension candidates. Maximal degree in co-relation 204. Up to 31 conditions per place. [2024-11-16 23:50:37,585 INFO L140 encePairwiseOnDemand]: 97/99 looper letters, 8 selfloop transitions, 0 changer transitions 0/97 dead transitions. [2024-11-16 23:50:37,585 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 97 transitions, 226 flow [2024-11-16 23:50:37,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:50:37,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:50:37,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 188 transitions. [2024-11-16 23:50:37,586 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9494949494949495 [2024-11-16 23:50:37,586 INFO L175 Difference]: Start difference. First operand has 100 places, 99 transitions, 214 flow. Second operand 2 states and 188 transitions. [2024-11-16 23:50:37,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 97 transitions, 226 flow [2024-11-16 23:50:37,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 97 transitions, 226 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:50:37,588 INFO L231 Difference]: Finished difference. Result has 101 places, 97 transitions, 210 flow [2024-11-16 23:50:37,588 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=210, PETRI_PLACES=101, PETRI_TRANSITIONS=97} [2024-11-16 23:50:37,589 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 1 predicate places. [2024-11-16 23:50:37,589 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 97 transitions, 210 flow [2024-11-16 23:50:37,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 90.0) internal successors, (180), 2 states have internal predecessors, (180), 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 23:50:37,589 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:37,589 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] [2024-11-16 23:50:37,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 23:50:37,590 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-16 23:50:37,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:37,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1639217214, now seen corresponding path program 1 times [2024-11-16 23:50:37,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:37,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952645147] [2024-11-16 23:50:37,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:37,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:37,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:37,615 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 23:50:37,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:37,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952645147] [2024-11-16 23:50:37,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952645147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:37,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:37,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 23:50:37,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713820657] [2024-11-16 23:50:37,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:37,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 23:50:37,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:37,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 23:50:37,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 23:50:37,644 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 99 [2024-11-16 23:50:37,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 97 transitions, 210 flow. Second operand has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 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 23:50:37,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:37,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 99 [2024-11-16 23:50:37,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:37,700 INFO L124 PetriNetUnfolderBase]: 72/593 cut-off events. [2024-11-16 23:50:37,701 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-11-16 23:50:37,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 760 conditions, 593 events. 72/593 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 3430 event pairs, 35 based on Foata normal form. 1/543 useless extension candidates. Maximal degree in co-relation 755. Up to 106 conditions per place. [2024-11-16 23:50:37,703 INFO L140 encePairwiseOnDemand]: 94/99 looper letters, 18 selfloop transitions, 4 changer transitions 0/104 dead transitions. [2024-11-16 23:50:37,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 104 transitions, 268 flow [2024-11-16 23:50:37,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 23:50:37,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 23:50:37,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 351 transitions. [2024-11-16 23:50:37,704 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8863636363636364 [2024-11-16 23:50:37,704 INFO L175 Difference]: Start difference. First operand has 101 places, 97 transitions, 210 flow. Second operand 4 states and 351 transitions. [2024-11-16 23:50:37,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 104 transitions, 268 flow [2024-11-16 23:50:37,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 104 transitions, 268 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:50:37,706 INFO L231 Difference]: Finished difference. Result has 105 places, 98 transitions, 226 flow [2024-11-16 23:50:37,706 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=226, PETRI_PLACES=105, PETRI_TRANSITIONS=98} [2024-11-16 23:50:37,707 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 5 predicate places. [2024-11-16 23:50:37,707 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 98 transitions, 226 flow [2024-11-16 23:50:37,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 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 23:50:37,707 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:37,707 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 23:50:37,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 23:50:37,708 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-16 23:50:37,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:37,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1510391286, now seen corresponding path program 1 times [2024-11-16 23:50:37,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:37,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118829164] [2024-11-16 23:50:37,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:37,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:37,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:37,876 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 23:50:37,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:37,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118829164] [2024-11-16 23:50:37,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118829164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:37,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:37,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:50:37,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123810848] [2024-11-16 23:50:37,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:37,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:50:37,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:37,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:50:37,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:50:37,975 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 99 [2024-11-16 23:50:37,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 98 transitions, 226 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 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 23:50:37,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:37,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 99 [2024-11-16 23:50:37,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:38,113 INFO L124 PetriNetUnfolderBase]: 236/1021 cut-off events. [2024-11-16 23:50:38,113 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2024-11-16 23:50:38,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1557 conditions, 1021 events. 236/1021 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 7165 event pairs, 34 based on Foata normal form. 0/948 useless extension candidates. Maximal degree in co-relation 1550. Up to 313 conditions per place. [2024-11-16 23:50:38,118 INFO L140 encePairwiseOnDemand]: 93/99 looper letters, 38 selfloop transitions, 5 changer transitions 0/113 dead transitions. [2024-11-16 23:50:38,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 113 transitions, 342 flow [2024-11-16 23:50:38,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:50:38,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:50:38,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 463 transitions. [2024-11-16 23:50:38,120 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7794612794612794 [2024-11-16 23:50:38,120 INFO L175 Difference]: Start difference. First operand has 105 places, 98 transitions, 226 flow. Second operand 6 states and 463 transitions. [2024-11-16 23:50:38,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 113 transitions, 342 flow [2024-11-16 23:50:38,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 113 transitions, 336 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:50:38,122 INFO L231 Difference]: Finished difference. Result has 107 places, 97 transitions, 228 flow [2024-11-16 23:50:38,122 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=228, PETRI_PLACES=107, PETRI_TRANSITIONS=97} [2024-11-16 23:50:38,123 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 7 predicate places. [2024-11-16 23:50:38,123 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 97 transitions, 228 flow [2024-11-16 23:50:38,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 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 23:50:38,123 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:38,124 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 23:50:38,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 23:50:38,124 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-16 23:50:38,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:38,124 INFO L85 PathProgramCache]: Analyzing trace with hash 90296589, now seen corresponding path program 1 times [2024-11-16 23:50:38,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:38,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468195502] [2024-11-16 23:50:38,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:38,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:38,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:38,144 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 23:50:38,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:38,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468195502] [2024-11-16 23:50:38,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468195502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:38,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:38,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:50:38,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210652099] [2024-11-16 23:50:38,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:38,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:50:38,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:38,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:50:38,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:50:38,158 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 99 [2024-11-16 23:50:38,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 97 transitions, 228 flow. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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 23:50:38,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:38,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 99 [2024-11-16 23:50:38,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:38,215 INFO L124 PetriNetUnfolderBase]: 113/694 cut-off events. [2024-11-16 23:50:38,215 INFO L125 PetriNetUnfolderBase]: For 99/173 co-relation queries the response was YES. [2024-11-16 23:50:38,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 982 conditions, 694 events. 113/694 cut-off events. For 99/173 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 4418 event pairs, 73 based on Foata normal form. 3/614 useless extension candidates. Maximal degree in co-relation 975. Up to 182 conditions per place. [2024-11-16 23:50:38,218 INFO L140 encePairwiseOnDemand]: 93/99 looper letters, 18 selfloop transitions, 5 changer transitions 0/105 dead transitions. [2024-11-16 23:50:38,218 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 105 transitions, 298 flow [2024-11-16 23:50:38,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:50:38,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:50:38,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 270 transitions. [2024-11-16 23:50:38,220 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9090909090909091 [2024-11-16 23:50:38,220 INFO L175 Difference]: Start difference. First operand has 107 places, 97 transitions, 228 flow. Second operand 3 states and 270 transitions. [2024-11-16 23:50:38,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 105 transitions, 298 flow [2024-11-16 23:50:38,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 105 transitions, 288 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:50:38,222 INFO L231 Difference]: Finished difference. Result has 106 places, 101 transitions, 256 flow [2024-11-16 23:50:38,222 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=106, PETRI_TRANSITIONS=101} [2024-11-16 23:50:38,222 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 6 predicate places. [2024-11-16 23:50:38,222 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 101 transitions, 256 flow [2024-11-16 23:50:38,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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 23:50:38,223 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:38,223 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] [2024-11-16 23:50:38,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 23:50:38,223 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-16 23:50:38,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:38,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1298185288, now seen corresponding path program 1 times [2024-11-16 23:50:38,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:38,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571585123] [2024-11-16 23:50:38,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:38,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:38,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:38,280 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-16 23:50:38,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:38,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571585123] [2024-11-16 23:50:38,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571585123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:38,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:38,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 23:50:38,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755602191] [2024-11-16 23:50:38,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:38,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 23:50:38,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:38,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 23:50:38,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 23:50:38,304 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 99 [2024-11-16 23:50:38,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 101 transitions, 256 flow. Second operand has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 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 23:50:38,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:38,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 99 [2024-11-16 23:50:38,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:38,366 INFO L124 PetriNetUnfolderBase]: 63/628 cut-off events. [2024-11-16 23:50:38,366 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-11-16 23:50:38,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 859 conditions, 628 events. 63/628 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3501 event pairs, 24 based on Foata normal form. 15/592 useless extension candidates. Maximal degree in co-relation 851. Up to 72 conditions per place. [2024-11-16 23:50:38,369 INFO L140 encePairwiseOnDemand]: 94/99 looper letters, 19 selfloop transitions, 4 changer transitions 3/112 dead transitions. [2024-11-16 23:50:38,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 112 transitions, 336 flow [2024-11-16 23:50:38,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 23:50:38,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 23:50:38,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 355 transitions. [2024-11-16 23:50:38,370 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8964646464646465 [2024-11-16 23:50:38,370 INFO L175 Difference]: Start difference. First operand has 106 places, 101 transitions, 256 flow. Second operand 4 states and 355 transitions. [2024-11-16 23:50:38,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 112 transitions, 336 flow [2024-11-16 23:50:38,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 112 transitions, 326 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:50:38,372 INFO L231 Difference]: Finished difference. Result has 108 places, 102 transitions, 262 flow [2024-11-16 23:50:38,372 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=262, PETRI_PLACES=108, PETRI_TRANSITIONS=102} [2024-11-16 23:50:38,373 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 8 predicate places. [2024-11-16 23:50:38,373 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 102 transitions, 262 flow [2024-11-16 23:50:38,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 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 23:50:38,373 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:38,373 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 23:50:38,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 23:50:38,374 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-16 23:50:38,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:38,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1616007851, now seen corresponding path program 1 times [2024-11-16 23:50:38,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:38,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727293612] [2024-11-16 23:50:38,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:38,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:38,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:38,450 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 23:50:38,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:38,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727293612] [2024-11-16 23:50:38,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727293612] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:50:38,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392801924] [2024-11-16 23:50:38,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:38,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:50:38,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:50:38,459 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 23:50:38,460 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 23:50:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:38,523 INFO L255 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-16 23:50:38,524 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:50:38,681 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 23:50:38,683 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:50:38,742 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 23:50:38,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392801924] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:50:38,743 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:50:38,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-16 23:50:38,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914723043] [2024-11-16 23:50:38,743 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:50:38,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 23:50:38,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:38,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 23:50:38,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:50:38,835 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 99 [2024-11-16 23:50:38,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 102 transitions, 262 flow. Second operand has 13 states, 13 states have (on average 80.92307692307692) internal successors, (1052), 13 states have internal predecessors, (1052), 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 23:50:38,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:38,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 99 [2024-11-16 23:50:38,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:38,955 INFO L124 PetriNetUnfolderBase]: 81/455 cut-off events. [2024-11-16 23:50:38,955 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2024-11-16 23:50:38,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 663 conditions, 455 events. 81/455 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2356 event pairs, 1 based on Foata normal form. 15/448 useless extension candidates. Maximal degree in co-relation 654. Up to 56 conditions per place. [2024-11-16 23:50:38,957 INFO L140 encePairwiseOnDemand]: 93/99 looper letters, 28 selfloop transitions, 8 changer transitions 0/93 dead transitions. [2024-11-16 23:50:38,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 93 transitions, 292 flow [2024-11-16 23:50:38,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 23:50:38,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-16 23:50:38,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 828 transitions. [2024-11-16 23:50:38,959 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8363636363636363 [2024-11-16 23:50:38,960 INFO L175 Difference]: Start difference. First operand has 108 places, 102 transitions, 262 flow. Second operand 10 states and 828 transitions. [2024-11-16 23:50:38,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 93 transitions, 292 flow [2024-11-16 23:50:38,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 93 transitions, 291 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:50:38,962 INFO L231 Difference]: Finished difference. Result has 88 places, 73 transitions, 195 flow [2024-11-16 23:50:38,962 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=79, 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=195, PETRI_PLACES=88, PETRI_TRANSITIONS=73} [2024-11-16 23:50:38,962 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, -12 predicate places. [2024-11-16 23:50:38,963 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 73 transitions, 195 flow [2024-11-16 23:50:38,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 80.92307692307692) internal successors, (1052), 13 states have internal predecessors, (1052), 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 23:50:38,964 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:38,964 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 23:50:38,980 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 23:50:39,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-16 23:50:39,166 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-16 23:50:39,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:39,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1041937714, now seen corresponding path program 1 times [2024-11-16 23:50:39,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:39,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440780623] [2024-11-16 23:50:39,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:39,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:39,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:39,204 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 23:50:39,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:39,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440780623] [2024-11-16 23:50:39,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440780623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:39,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:39,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:50:39,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668693780] [2024-11-16 23:50:39,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:39,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:50:39,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:39,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:50:39,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:50:39,220 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 99 [2024-11-16 23:50:39,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 73 transitions, 195 flow. Second operand has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 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 23:50:39,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:39,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 99 [2024-11-16 23:50:39,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:39,271 INFO L124 PetriNetUnfolderBase]: 27/232 cut-off events. [2024-11-16 23:50:39,272 INFO L125 PetriNetUnfolderBase]: For 27/31 co-relation queries the response was YES. [2024-11-16 23:50:39,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 372 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 826 event pairs, 16 based on Foata normal form. 0/222 useless extension candidates. Maximal degree in co-relation 363. Up to 55 conditions per place. [2024-11-16 23:50:39,273 INFO L140 encePairwiseOnDemand]: 94/99 looper letters, 13 selfloop transitions, 5 changer transitions 0/78 dead transitions. [2024-11-16 23:50:39,273 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 78 transitions, 243 flow [2024-11-16 23:50:39,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:50:39,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:50:39,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2024-11-16 23:50:39,274 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2024-11-16 23:50:39,275 INFO L175 Difference]: Start difference. First operand has 88 places, 73 transitions, 195 flow. Second operand 3 states and 264 transitions. [2024-11-16 23:50:39,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 78 transitions, 243 flow [2024-11-16 23:50:39,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 78 transitions, 226 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-11-16 23:50:39,276 INFO L231 Difference]: Finished difference. Result has 86 places, 76 transitions, 214 flow [2024-11-16 23:50:39,276 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=82, 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=214, PETRI_PLACES=86, PETRI_TRANSITIONS=76} [2024-11-16 23:50:39,277 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, -14 predicate places. [2024-11-16 23:50:39,277 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 76 transitions, 214 flow [2024-11-16 23:50:39,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 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 23:50:39,277 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:39,277 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 23:50:39,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 23:50:39,277 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-16 23:50:39,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:39,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1360432346, now seen corresponding path program 1 times [2024-11-16 23:50:39,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:39,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248934730] [2024-11-16 23:50:39,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:39,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:39,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:39,349 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 23:50:39,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:39,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248934730] [2024-11-16 23:50:39,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248934730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:39,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:39,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:50:39,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42729935] [2024-11-16 23:50:39,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:39,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:50:39,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:39,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:50:39,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:50:39,360 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 99 [2024-11-16 23:50:39,361 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 76 transitions, 214 flow. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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 23:50:39,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:39,361 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 99 [2024-11-16 23:50:39,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:39,378 INFO L124 PetriNetUnfolderBase]: 3/134 cut-off events. [2024-11-16 23:50:39,378 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-11-16 23:50:39,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 134 events. 3/134 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 215 event pairs, 2 based on Foata normal form. 2/135 useless extension candidates. Maximal degree in co-relation 188. Up to 10 conditions per place. [2024-11-16 23:50:39,379 INFO L140 encePairwiseOnDemand]: 95/99 looper letters, 4 selfloop transitions, 4 changer transitions 0/69 dead transitions. [2024-11-16 23:50:39,379 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 69 transitions, 195 flow [2024-11-16 23:50:39,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:50:39,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:50:39,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 274 transitions. [2024-11-16 23:50:39,380 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9225589225589226 [2024-11-16 23:50:39,380 INFO L175 Difference]: Start difference. First operand has 86 places, 76 transitions, 214 flow. Second operand 3 states and 274 transitions. [2024-11-16 23:50:39,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 69 transitions, 195 flow [2024-11-16 23:50:39,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 69 transitions, 175 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-11-16 23:50:39,382 INFO L231 Difference]: Finished difference. Result has 80 places, 68 transitions, 160 flow [2024-11-16 23:50:39,382 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=78, 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=160, PETRI_PLACES=80, PETRI_TRANSITIONS=68} [2024-11-16 23:50:39,382 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, -20 predicate places. [2024-11-16 23:50:39,383 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 68 transitions, 160 flow [2024-11-16 23:50:39,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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 23:50:39,383 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:39,383 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 23:50:39,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 23:50:39,384 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-16 23:50:39,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:39,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1148720154, now seen corresponding path program 1 times [2024-11-16 23:50:39,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:39,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677590912] [2024-11-16 23:50:39,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:39,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:39,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:50:39,405 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:50:39,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:50:39,422 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:50:39,422 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:50:39,422 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-11-16 23:50:39,422 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-11-16 23:50:39,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2024-11-16 23:50:39,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-11-16 23:50:39,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-11-16 23:50:39,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-11-16 23:50:39,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-11-16 23:50:39,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 23:50:39,423 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:50:39,424 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:50:39,424 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-16 23:50:39,443 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-16 23:50:39,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 117 transitions, 261 flow [2024-11-16 23:50:39,464 INFO L124 PetriNetUnfolderBase]: 20/357 cut-off events. [2024-11-16 23:50:39,464 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-16 23:50:39,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 382 conditions, 357 events. 20/357 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1018 event pairs, 1 based on Foata normal form. 0/310 useless extension candidates. Maximal degree in co-relation 218. Up to 16 conditions per place. [2024-11-16 23:50:39,465 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 117 transitions, 261 flow [2024-11-16 23:50:39,467 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 117 transitions, 261 flow [2024-11-16 23:50:39,467 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:50:39,468 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;@37406721, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:50:39,468 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-16 23:50:39,469 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:50:39,469 INFO L124 PetriNetUnfolderBase]: 2/35 cut-off events. [2024-11-16 23:50:39,469 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:50:39,469 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:39,469 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] [2024-11-16 23:50:39,469 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-16 23:50:39,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:39,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1473326562, now seen corresponding path program 1 times [2024-11-16 23:50:39,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:39,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673561905] [2024-11-16 23:50:39,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:39,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:39,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:39,477 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 23:50:39,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:39,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673561905] [2024-11-16 23:50:39,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673561905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:39,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:39,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:50:39,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256284586] [2024-11-16 23:50:39,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:39,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:50:39,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:39,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:50:39,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:50:39,479 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 117 [2024-11-16 23:50:39,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 117 transitions, 261 flow. Second operand has 2 states, 2 states have (on average 104.0) internal successors, (208), 2 states have internal predecessors, (208), 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 23:50:39,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:39,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 117 [2024-11-16 23:50:39,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:39,568 INFO L124 PetriNetUnfolderBase]: 98/1130 cut-off events. [2024-11-16 23:50:39,569 INFO L125 PetriNetUnfolderBase]: For 258/389 co-relation queries the response was YES. [2024-11-16 23:50:39,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1401 conditions, 1130 events. 98/1130 cut-off events. For 258/389 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 7347 event pairs, 87 based on Foata normal form. 80/1081 useless extension candidates. Maximal degree in co-relation 844. Up to 172 conditions per place. [2024-11-16 23:50:39,576 INFO L140 encePairwiseOnDemand]: 115/117 looper letters, 12 selfloop transitions, 0 changer transitions 0/115 dead transitions. [2024-11-16 23:50:39,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 115 transitions, 281 flow [2024-11-16 23:50:39,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:50:39,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:50:39,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 220 transitions. [2024-11-16 23:50:39,578 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9401709401709402 [2024-11-16 23:50:39,578 INFO L175 Difference]: Start difference. First operand has 119 places, 117 transitions, 261 flow. Second operand 2 states and 220 transitions. [2024-11-16 23:50:39,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 115 transitions, 281 flow [2024-11-16 23:50:39,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 115 transitions, 281 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:50:39,580 INFO L231 Difference]: Finished difference. Result has 120 places, 115 transitions, 257 flow [2024-11-16 23:50:39,580 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=257, PETRI_PLACES=120, PETRI_TRANSITIONS=115} [2024-11-16 23:50:39,580 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 1 predicate places. [2024-11-16 23:50:39,580 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 115 transitions, 257 flow [2024-11-16 23:50:39,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 104.0) internal successors, (208), 2 states have internal predecessors, (208), 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 23:50:39,581 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:39,581 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] [2024-11-16 23:50:39,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 23:50:39,581 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-16 23:50:39,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:39,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1426581314, now seen corresponding path program 1 times [2024-11-16 23:50:39,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:39,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37392720] [2024-11-16 23:50:39,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:39,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:39,603 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 23:50:39,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:39,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37392720] [2024-11-16 23:50:39,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37392720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:39,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:39,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 23:50:39,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145491767] [2024-11-16 23:50:39,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:39,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 23:50:39,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:39,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 23:50:39,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 23:50:39,638 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 117 [2024-11-16 23:50:39,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 115 transitions, 257 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 23:50:39,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:39,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 117 [2024-11-16 23:50:39,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:39,827 INFO L124 PetriNetUnfolderBase]: 412/2300 cut-off events. [2024-11-16 23:50:39,827 INFO L125 PetriNetUnfolderBase]: For 232/232 co-relation queries the response was YES. [2024-11-16 23:50:39,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3072 conditions, 2300 events. 412/2300 cut-off events. For 232/232 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 18551 event pairs, 175 based on Foata normal form. 1/2091 useless extension candidates. Maximal degree in co-relation 3066. Up to 495 conditions per place. [2024-11-16 23:50:39,839 INFO L140 encePairwiseOnDemand]: 112/117 looper letters, 24 selfloop transitions, 4 changer transitions 0/124 dead transitions. [2024-11-16 23:50:39,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 124 transitions, 331 flow [2024-11-16 23:50:39,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 23:50:39,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 23:50:39,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 413 transitions. [2024-11-16 23:50:39,841 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8824786324786325 [2024-11-16 23:50:39,841 INFO L175 Difference]: Start difference. First operand has 120 places, 115 transitions, 257 flow. Second operand 4 states and 413 transitions. [2024-11-16 23:50:39,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 124 transitions, 331 flow [2024-11-16 23:50:39,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 124 transitions, 331 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:50:39,843 INFO L231 Difference]: Finished difference. Result has 124 places, 116 transitions, 273 flow [2024-11-16 23:50:39,843 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=273, PETRI_PLACES=124, PETRI_TRANSITIONS=116} [2024-11-16 23:50:39,843 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 5 predicate places. [2024-11-16 23:50:39,844 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 116 transitions, 273 flow [2024-11-16 23:50:39,844 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 23:50:39,844 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:39,844 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 23:50:39,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 23:50:39,844 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-16 23:50:39,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:39,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1625567190, now seen corresponding path program 1 times [2024-11-16 23:50:39,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:39,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242130477] [2024-11-16 23:50:39,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:39,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:39,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:39,986 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 23:50:39,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:39,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242130477] [2024-11-16 23:50:39,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242130477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:39,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:39,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:50:39,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133858918] [2024-11-16 23:50:39,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:39,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:50:39,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:39,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:50:39,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:50:40,067 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 117 [2024-11-16 23:50:40,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 116 transitions, 273 flow. Second operand has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 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 23:50:40,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:40,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 117 [2024-11-16 23:50:40,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:40,464 INFO L124 PetriNetUnfolderBase]: 1295/4096 cut-off events. [2024-11-16 23:50:40,465 INFO L125 PetriNetUnfolderBase]: For 327/327 co-relation queries the response was YES. [2024-11-16 23:50:40,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6449 conditions, 4096 events. 1295/4096 cut-off events. For 327/327 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 36272 event pairs, 181 based on Foata normal form. 0/3819 useless extension candidates. Maximal degree in co-relation 6441. Up to 1483 conditions per place. [2024-11-16 23:50:40,483 INFO L140 encePairwiseOnDemand]: 111/117 looper letters, 50 selfloop transitions, 5 changer transitions 0/139 dead transitions. [2024-11-16 23:50:40,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 139 transitions, 429 flow [2024-11-16 23:50:40,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:50:40,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:50:40,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 559 transitions. [2024-11-16 23:50:40,485 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7962962962962963 [2024-11-16 23:50:40,485 INFO L175 Difference]: Start difference. First operand has 124 places, 116 transitions, 273 flow. Second operand 6 states and 559 transitions. [2024-11-16 23:50:40,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 139 transitions, 429 flow [2024-11-16 23:50:40,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 139 transitions, 423 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:50:40,488 INFO L231 Difference]: Finished difference. Result has 126 places, 115 transitions, 275 flow [2024-11-16 23:50:40,488 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=275, PETRI_PLACES=126, PETRI_TRANSITIONS=115} [2024-11-16 23:50:40,488 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 7 predicate places. [2024-11-16 23:50:40,488 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 115 transitions, 275 flow [2024-11-16 23:50:40,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 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 23:50:40,489 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:40,489 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 23:50:40,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 23:50:40,489 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-16 23:50:40,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:40,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1888023133, now seen corresponding path program 1 times [2024-11-16 23:50:40,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:40,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378875306] [2024-11-16 23:50:40,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:40,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:40,510 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 23:50:40,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:40,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378875306] [2024-11-16 23:50:40,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378875306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:40,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:40,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:50:40,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048943622] [2024-11-16 23:50:40,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:40,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:50:40,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:40,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:50:40,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:50:40,524 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 117 [2024-11-16 23:50:40,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 115 transitions, 275 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 23:50:40,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:40,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 117 [2024-11-16 23:50:40,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:40,883 INFO L124 PetriNetUnfolderBase]: 1023/4232 cut-off events. [2024-11-16 23:50:40,883 INFO L125 PetriNetUnfolderBase]: For 785/1245 co-relation queries the response was YES. [2024-11-16 23:50:40,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6205 conditions, 4232 events. 1023/4232 cut-off events. For 785/1245 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 40788 event pairs, 572 based on Foata normal form. 9/3691 useless extension candidates. Maximal degree in co-relation 6197. Up to 1329 conditions per place. [2024-11-16 23:50:40,914 INFO L140 encePairwiseOnDemand]: 110/117 looper letters, 27 selfloop transitions, 6 changer transitions 0/128 dead transitions. [2024-11-16 23:50:40,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 128 transitions, 385 flow [2024-11-16 23:50:40,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:50:40,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:50:40,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 319 transitions. [2024-11-16 23:50:40,916 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9088319088319088 [2024-11-16 23:50:40,916 INFO L175 Difference]: Start difference. First operand has 126 places, 115 transitions, 275 flow. Second operand 3 states and 319 transitions. [2024-11-16 23:50:40,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 128 transitions, 385 flow [2024-11-16 23:50:40,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 128 transitions, 375 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:50:40,919 INFO L231 Difference]: Finished difference. Result has 125 places, 120 transitions, 311 flow [2024-11-16 23:50:40,919 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=311, PETRI_PLACES=125, PETRI_TRANSITIONS=120} [2024-11-16 23:50:40,919 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 6 predicate places. [2024-11-16 23:50:40,919 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 120 transitions, 311 flow [2024-11-16 23:50:40,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 23:50:40,920 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:40,920 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] [2024-11-16 23:50:40,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 23:50:40,920 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-16 23:50:40,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:40,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1668252872, now seen corresponding path program 1 times [2024-11-16 23:50:40,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:40,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273431316] [2024-11-16 23:50:40,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:40,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:40,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:40,972 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-16 23:50:40,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:40,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273431316] [2024-11-16 23:50:40,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273431316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:40,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:40,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 23:50:40,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287013401] [2024-11-16 23:50:40,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:40,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 23:50:40,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:40,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 23:50:40,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 23:50:41,008 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 117 [2024-11-16 23:50:41,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 120 transitions, 311 flow. Second operand has 4 states, 4 states have (on average 97.5) internal successors, (390), 4 states have internal predecessors, (390), 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 23:50:41,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:41,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 117 [2024-11-16 23:50:41,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:41,317 INFO L124 PetriNetUnfolderBase]: 666/3467 cut-off events. [2024-11-16 23:50:41,317 INFO L125 PetriNetUnfolderBase]: For 434/438 co-relation queries the response was YES. [2024-11-16 23:50:41,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5029 conditions, 3467 events. 666/3467 cut-off events. For 434/438 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 32136 event pairs, 320 based on Foata normal form. 63/3172 useless extension candidates. Maximal degree in co-relation 5020. Up to 536 conditions per place. [2024-11-16 23:50:41,334 INFO L140 encePairwiseOnDemand]: 112/117 looper letters, 31 selfloop transitions, 4 changer transitions 0/136 dead transitions. [2024-11-16 23:50:41,334 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 136 transitions, 422 flow [2024-11-16 23:50:41,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 23:50:41,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 23:50:41,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 420 transitions. [2024-11-16 23:50:41,336 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8974358974358975 [2024-11-16 23:50:41,336 INFO L175 Difference]: Start difference. First operand has 125 places, 120 transitions, 311 flow. Second operand 4 states and 420 transitions. [2024-11-16 23:50:41,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 136 transitions, 422 flow [2024-11-16 23:50:41,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 136 transitions, 410 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:50:41,339 INFO L231 Difference]: Finished difference. Result has 127 places, 121 transitions, 315 flow [2024-11-16 23:50:41,339 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=315, PETRI_PLACES=127, PETRI_TRANSITIONS=121} [2024-11-16 23:50:41,339 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 8 predicate places. [2024-11-16 23:50:41,340 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 121 transitions, 315 flow [2024-11-16 23:50:41,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.5) internal successors, (390), 4 states have internal predecessors, (390), 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 23:50:41,340 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:41,340 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 23:50:41,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 23:50:41,340 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-16 23:50:41,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:41,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1703749606, now seen corresponding path program 1 times [2024-11-16 23:50:41,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:41,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028501138] [2024-11-16 23:50:41,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:41,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:41,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:41,412 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 23:50:41,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:41,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028501138] [2024-11-16 23:50:41,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028501138] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:50:41,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925512695] [2024-11-16 23:50:41,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:41,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:50:41,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:50:41,418 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 23:50:41,420 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 23:50:41,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:41,485 INFO L255 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-16 23:50:41,487 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:50:41,572 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 23:50:41,573 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:50:41,617 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 23:50:41,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925512695] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:50:41,618 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:50:41,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-16 23:50:41,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566876227] [2024-11-16 23:50:41,618 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:50:41,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 23:50:41,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:41,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 23:50:41,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:50:41,713 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 117 [2024-11-16 23:50:41,715 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 121 transitions, 315 flow. Second operand has 13 states, 13 states have (on average 94.92307692307692) internal successors, (1234), 13 states have internal predecessors, (1234), 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 23:50:41,715 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:41,715 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 117 [2024-11-16 23:50:41,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:42,274 INFO L124 PetriNetUnfolderBase]: 1016/4890 cut-off events. [2024-11-16 23:50:42,274 INFO L125 PetriNetUnfolderBase]: For 652/652 co-relation queries the response was YES. [2024-11-16 23:50:42,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7162 conditions, 4890 events. 1016/4890 cut-off events. For 652/652 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 47221 event pairs, 151 based on Foata normal form. 15/4349 useless extension candidates. Maximal degree in co-relation 7152. Up to 749 conditions per place. [2024-11-16 23:50:42,302 INFO L140 encePairwiseOnDemand]: 109/117 looper letters, 50 selfloop transitions, 11 changer transitions 0/159 dead transitions. [2024-11-16 23:50:42,302 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 159 transitions, 515 flow [2024-11-16 23:50:42,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 23:50:42,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-16 23:50:42,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 993 transitions. [2024-11-16 23:50:42,304 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8487179487179487 [2024-11-16 23:50:42,304 INFO L175 Difference]: Start difference. First operand has 127 places, 121 transitions, 315 flow. Second operand 10 states and 993 transitions. [2024-11-16 23:50:42,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 159 transitions, 515 flow [2024-11-16 23:50:42,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 159 transitions, 509 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:50:42,308 INFO L231 Difference]: Finished difference. Result has 137 places, 127 transitions, 365 flow [2024-11-16 23:50:42,308 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=365, PETRI_PLACES=137, PETRI_TRANSITIONS=127} [2024-11-16 23:50:42,309 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 18 predicate places. [2024-11-16 23:50:42,309 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 127 transitions, 365 flow [2024-11-16 23:50:42,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 94.92307692307692) internal successors, (1234), 13 states have internal predecessors, (1234), 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 23:50:42,309 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:42,310 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 23:50:42,324 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 23:50:42,513 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,SelfDestructingSolverStorable20 [2024-11-16 23:50:42,514 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-16 23:50:42,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:42,514 INFO L85 PathProgramCache]: Analyzing trace with hash 391639026, now seen corresponding path program 1 times [2024-11-16 23:50:42,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:42,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12909406] [2024-11-16 23:50:42,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:42,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:42,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:42,540 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 23:50:42,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:42,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12909406] [2024-11-16 23:50:42,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12909406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:42,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:42,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:50:42,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899752387] [2024-11-16 23:50:42,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:42,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:50:42,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:42,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:50:42,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:50:42,571 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 117 [2024-11-16 23:50:42,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 127 transitions, 365 flow. Second operand has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 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 23:50:42,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:42,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 117 [2024-11-16 23:50:42,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:43,044 INFO L124 PetriNetUnfolderBase]: 902/4410 cut-off events. [2024-11-16 23:50:43,044 INFO L125 PetriNetUnfolderBase]: For 1349/1921 co-relation queries the response was YES. [2024-11-16 23:50:43,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7193 conditions, 4410 events. 902/4410 cut-off events. For 1349/1921 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 42888 event pairs, 487 based on Foata normal form. 18/3946 useless extension candidates. Maximal degree in co-relation 7180. Up to 1159 conditions per place. [2024-11-16 23:50:43,075 INFO L140 encePairwiseOnDemand]: 110/117 looper letters, 28 selfloop transitions, 9 changer transitions 0/141 dead transitions. [2024-11-16 23:50:43,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 141 transitions, 490 flow [2024-11-16 23:50:43,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:50:43,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:50:43,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 318 transitions. [2024-11-16 23:50:43,077 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.905982905982906 [2024-11-16 23:50:43,077 INFO L175 Difference]: Start difference. First operand has 137 places, 127 transitions, 365 flow. Second operand 3 states and 318 transitions. [2024-11-16 23:50:43,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 141 transitions, 490 flow [2024-11-16 23:50:43,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 141 transitions, 482 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-16 23:50:43,081 INFO L231 Difference]: Finished difference. Result has 139 places, 134 transitions, 433 flow [2024-11-16 23:50:43,081 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=357, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=433, PETRI_PLACES=139, PETRI_TRANSITIONS=134} [2024-11-16 23:50:43,081 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 20 predicate places. [2024-11-16 23:50:43,081 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 134 transitions, 433 flow [2024-11-16 23:50:43,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 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 23:50:43,082 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:43,082 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 23:50:43,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 23:50:43,082 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-16 23:50:43,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:43,082 INFO L85 PathProgramCache]: Analyzing trace with hash 136792198, now seen corresponding path program 1 times [2024-11-16 23:50:43,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:43,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821764919] [2024-11-16 23:50:43,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:43,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:43,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:43,131 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 23:50:43,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:43,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821764919] [2024-11-16 23:50:43,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821764919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:43,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:43,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:50:43,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701230212] [2024-11-16 23:50:43,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:43,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:50:43,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:43,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:50:43,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:50:43,147 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 117 [2024-11-16 23:50:43,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 134 transitions, 433 flow. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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 23:50:43,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:43,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 117 [2024-11-16 23:50:43,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:43,301 INFO L124 PetriNetUnfolderBase]: 100/1215 cut-off events. [2024-11-16 23:50:43,301 INFO L125 PetriNetUnfolderBase]: For 333/363 co-relation queries the response was YES. [2024-11-16 23:50:43,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1873 conditions, 1215 events. 100/1215 cut-off events. For 333/363 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 8574 event pairs, 57 based on Foata normal form. 20/1159 useless extension candidates. Maximal degree in co-relation 1859. Up to 106 conditions per place. [2024-11-16 23:50:43,306 INFO L140 encePairwiseOnDemand]: 111/117 looper letters, 12 selfloop transitions, 6 changer transitions 0/133 dead transitions. [2024-11-16 23:50:43,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 133 transitions, 454 flow [2024-11-16 23:50:43,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:50:43,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:50:43,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 327 transitions. [2024-11-16 23:50:43,308 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9316239316239316 [2024-11-16 23:50:43,309 INFO L175 Difference]: Start difference. First operand has 139 places, 134 transitions, 433 flow. Second operand 3 states and 327 transitions. [2024-11-16 23:50:43,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 133 transitions, 454 flow [2024-11-16 23:50:43,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 133 transitions, 442 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-16 23:50:43,313 INFO L231 Difference]: Finished difference. Result has 139 places, 128 transitions, 387 flow [2024-11-16 23:50:43,313 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=387, PETRI_PLACES=139, PETRI_TRANSITIONS=128} [2024-11-16 23:50:43,313 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 20 predicate places. [2024-11-16 23:50:43,314 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 128 transitions, 387 flow [2024-11-16 23:50:43,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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 23:50:43,314 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:43,314 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 23:50:43,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 23:50:43,314 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-16 23:50:43,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:43,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1538384026, now seen corresponding path program 1 times [2024-11-16 23:50:43,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:43,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367221277] [2024-11-16 23:50:43,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:43,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:43,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:43,344 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 23:50:43,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:43,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367221277] [2024-11-16 23:50:43,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367221277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:43,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:43,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:50:43,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22655142] [2024-11-16 23:50:43,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:43,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:50:43,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:43,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:50:43,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:50:43,373 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 117 [2024-11-16 23:50:43,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 128 transitions, 387 flow. Second operand has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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 23:50:43,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:43,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 117 [2024-11-16 23:50:43,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:43,529 INFO L124 PetriNetUnfolderBase]: 177/1445 cut-off events. [2024-11-16 23:50:43,530 INFO L125 PetriNetUnfolderBase]: For 715/763 co-relation queries the response was YES. [2024-11-16 23:50:43,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2507 conditions, 1445 events. 177/1445 cut-off events. For 715/763 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 11170 event pairs, 135 based on Foata normal form. 3/1328 useless extension candidates. Maximal degree in co-relation 2493. Up to 336 conditions per place. [2024-11-16 23:50:43,541 INFO L140 encePairwiseOnDemand]: 112/117 looper letters, 23 selfloop transitions, 4 changer transitions 0/133 dead transitions. [2024-11-16 23:50:43,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 133 transitions, 461 flow [2024-11-16 23:50:43,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:50:43,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:50:43,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 311 transitions. [2024-11-16 23:50:43,543 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.886039886039886 [2024-11-16 23:50:43,543 INFO L175 Difference]: Start difference. First operand has 139 places, 128 transitions, 387 flow. Second operand 3 states and 311 transitions. [2024-11-16 23:50:43,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 133 transitions, 461 flow [2024-11-16 23:50:43,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 133 transitions, 455 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:50:43,548 INFO L231 Difference]: Finished difference. Result has 142 places, 131 transitions, 415 flow [2024-11-16 23:50:43,549 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=381, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=415, PETRI_PLACES=142, PETRI_TRANSITIONS=131} [2024-11-16 23:50:43,550 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 23 predicate places. [2024-11-16 23:50:43,550 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 131 transitions, 415 flow [2024-11-16 23:50:43,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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 23:50:43,552 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:43,553 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 23:50:43,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 23:50:43,553 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-16 23:50:43,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:43,554 INFO L85 PathProgramCache]: Analyzing trace with hash -2034695077, now seen corresponding path program 1 times [2024-11-16 23:50:43,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:43,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505724979] [2024-11-16 23:50:43,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:43,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:43,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:50:43,583 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:50:43,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:50:43,604 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:50:43,604 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:50:43,605 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2024-11-16 23:50:43,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2024-11-16 23:50:43,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2024-11-16 23:50:43,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2024-11-16 23:50:43,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2024-11-16 23:50:43,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2024-11-16 23:50:43,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2024-11-16 23:50:43,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2024-11-16 23:50:43,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 23:50:43,606 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:50:43,606 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:50:43,608 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-16 23:50:43,623 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-16 23:50:43,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 135 transitions, 310 flow [2024-11-16 23:50:43,667 INFO L124 PetriNetUnfolderBase]: 42/616 cut-off events. [2024-11-16 23:50:43,667 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-11-16 23:50:43,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 667 conditions, 616 events. 42/616 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2272 event pairs, 6 based on Foata normal form. 0/533 useless extension candidates. Maximal degree in co-relation 377. Up to 32 conditions per place. [2024-11-16 23:50:43,669 INFO L82 GeneralOperation]: Start removeDead. Operand has 138 places, 135 transitions, 310 flow [2024-11-16 23:50:43,671 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 138 places, 135 transitions, 310 flow [2024-11-16 23:50:43,672 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:50:43,672 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;@37406721, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:50:43,672 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-16 23:50:43,674 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:50:43,674 INFO L124 PetriNetUnfolderBase]: 2/35 cut-off events. [2024-11-16 23:50:43,674 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:50:43,674 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:43,674 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] [2024-11-16 23:50:43,674 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-16 23:50:43,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:43,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1980629950, now seen corresponding path program 1 times [2024-11-16 23:50:43,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:43,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927052413] [2024-11-16 23:50:43,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:43,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:43,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:43,682 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 23:50:43,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:43,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927052413] [2024-11-16 23:50:43,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927052413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:43,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:43,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:50:43,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324747307] [2024-11-16 23:50:43,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:43,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:50:43,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:43,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:50:43,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:50:43,685 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 135 [2024-11-16 23:50:43,685 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 135 transitions, 310 flow. Second operand has 2 states, 2 states have (on average 118.0) internal successors, (236), 2 states have internal predecessors, (236), 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 23:50:43,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:43,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 135 [2024-11-16 23:50:43,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:44,037 INFO L124 PetriNetUnfolderBase]: 585/4394 cut-off events. [2024-11-16 23:50:44,037 INFO L125 PetriNetUnfolderBase]: For 1225/1772 co-relation queries the response was YES. [2024-11-16 23:50:44,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5714 conditions, 4394 events. 585/4394 cut-off events. For 1225/1772 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 42122 event pairs, 536 based on Foata normal form. 307/4207 useless extension candidates. Maximal degree in co-relation 3653. Up to 877 conditions per place. [2024-11-16 23:50:44,062 INFO L140 encePairwiseOnDemand]: 133/135 looper letters, 16 selfloop transitions, 0 changer transitions 0/133 dead transitions. [2024-11-16 23:50:44,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 133 transitions, 338 flow [2024-11-16 23:50:44,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:50:44,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:50:44,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 252 transitions. [2024-11-16 23:50:44,063 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9333333333333333 [2024-11-16 23:50:44,064 INFO L175 Difference]: Start difference. First operand has 138 places, 135 transitions, 310 flow. Second operand 2 states and 252 transitions. [2024-11-16 23:50:44,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 133 transitions, 338 flow [2024-11-16 23:50:44,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 133 transitions, 338 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:50:44,066 INFO L231 Difference]: Finished difference. Result has 139 places, 133 transitions, 306 flow [2024-11-16 23:50:44,066 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=306, PETRI_PLACES=139, PETRI_TRANSITIONS=133} [2024-11-16 23:50:44,066 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 1 predicate places. [2024-11-16 23:50:44,066 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 133 transitions, 306 flow [2024-11-16 23:50:44,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 118.0) internal successors, (236), 2 states have internal predecessors, (236), 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 23:50:44,067 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:44,067 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] [2024-11-16 23:50:44,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-16 23:50:44,067 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-16 23:50:44,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:44,067 INFO L85 PathProgramCache]: Analyzing trace with hash 669073858, now seen corresponding path program 1 times [2024-11-16 23:50:44,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:44,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816336741] [2024-11-16 23:50:44,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:44,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:44,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:44,089 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 23:50:44,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:44,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816336741] [2024-11-16 23:50:44,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816336741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:44,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:44,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 23:50:44,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780638809] [2024-11-16 23:50:44,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:44,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 23:50:44,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:44,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 23:50:44,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 23:50:44,119 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 135 [2024-11-16 23:50:44,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 133 transitions, 306 flow. Second operand has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 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 23:50:44,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:44,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 135 [2024-11-16 23:50:44,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:44,840 INFO L124 PetriNetUnfolderBase]: 2015/8472 cut-off events. [2024-11-16 23:50:44,840 INFO L125 PetriNetUnfolderBase]: For 1213/1213 co-relation queries the response was YES. [2024-11-16 23:50:44,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11868 conditions, 8472 events. 2015/8472 cut-off events. For 1213/1213 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 86824 event pairs, 996 based on Foata normal form. 1/7690 useless extension candidates. Maximal degree in co-relation 11861. Up to 2117 conditions per place. [2024-11-16 23:50:44,895 INFO L140 encePairwiseOnDemand]: 130/135 looper letters, 30 selfloop transitions, 4 changer transitions 0/144 dead transitions. [2024-11-16 23:50:44,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 144 transitions, 396 flow [2024-11-16 23:50:44,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 23:50:44,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 23:50:44,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 475 transitions. [2024-11-16 23:50:44,899 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8796296296296297 [2024-11-16 23:50:44,899 INFO L175 Difference]: Start difference. First operand has 139 places, 133 transitions, 306 flow. Second operand 4 states and 475 transitions. [2024-11-16 23:50:44,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 144 transitions, 396 flow [2024-11-16 23:50:44,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 144 transitions, 396 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:50:44,901 INFO L231 Difference]: Finished difference. Result has 143 places, 134 transitions, 322 flow [2024-11-16 23:50:44,901 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=322, PETRI_PLACES=143, PETRI_TRANSITIONS=134} [2024-11-16 23:50:44,902 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 5 predicate places. [2024-11-16 23:50:44,902 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 134 transitions, 322 flow [2024-11-16 23:50:44,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 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 23:50:44,902 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:44,902 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 23:50:44,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-16 23:50:44,902 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-16 23:50:44,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:44,903 INFO L85 PathProgramCache]: Analyzing trace with hash 554212234, now seen corresponding path program 1 times [2024-11-16 23:50:44,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:44,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436711891] [2024-11-16 23:50:44,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:44,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:44,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:45,048 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 23:50:45,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:45,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436711891] [2024-11-16 23:50:45,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436711891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:45,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:45,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:50:45,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806526463] [2024-11-16 23:50:45,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:45,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:50:45,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:45,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:50:45,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:50:45,222 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 135 [2024-11-16 23:50:45,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 134 transitions, 322 flow. Second operand has 6 states, 6 states have (on average 99.5) internal successors, (597), 6 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:50:45,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:45,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 135 [2024-11-16 23:50:45,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:46,549 INFO L124 PetriNetUnfolderBase]: 6236/16222 cut-off events. [2024-11-16 23:50:46,550 INFO L125 PetriNetUnfolderBase]: For 1708/1708 co-relation queries the response was YES. [2024-11-16 23:50:46,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26287 conditions, 16222 events. 6236/16222 cut-off events. For 1708/1708 co-relation queries the response was YES. Maximal size of possible extension queue 605. Compared 164337 event pairs, 2634 based on Foata normal form. 0/15267 useless extension candidates. Maximal degree in co-relation 26278. Up to 6781 conditions per place. [2024-11-16 23:50:46,638 INFO L140 encePairwiseOnDemand]: 129/135 looper letters, 62 selfloop transitions, 5 changer transitions 0/165 dead transitions. [2024-11-16 23:50:46,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 165 transitions, 518 flow [2024-11-16 23:50:46,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:50:46,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:50:46,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 655 transitions. [2024-11-16 23:50:46,640 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.808641975308642 [2024-11-16 23:50:46,640 INFO L175 Difference]: Start difference. First operand has 143 places, 134 transitions, 322 flow. Second operand 6 states and 655 transitions. [2024-11-16 23:50:46,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 165 transitions, 518 flow [2024-11-16 23:50:46,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 165 transitions, 512 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:50:46,653 INFO L231 Difference]: Finished difference. Result has 145 places, 133 transitions, 324 flow [2024-11-16 23:50:46,653 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=324, PETRI_PLACES=145, PETRI_TRANSITIONS=133} [2024-11-16 23:50:46,654 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 7 predicate places. [2024-11-16 23:50:46,654 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 133 transitions, 324 flow [2024-11-16 23:50:46,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 99.5) internal successors, (597), 6 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:50:46,654 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:46,654 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 23:50:46,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-16 23:50:46,655 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-16 23:50:46,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:46,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1621050365, now seen corresponding path program 1 times [2024-11-16 23:50:46,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:46,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034624483] [2024-11-16 23:50:46,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:46,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:46,674 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 23:50:46,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:46,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034624483] [2024-11-16 23:50:46,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034624483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:46,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:46,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:50:46,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437773299] [2024-11-16 23:50:46,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:46,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:50:46,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:46,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:50:46,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:50:46,691 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 135 [2024-11-16 23:50:46,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 133 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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 23:50:46,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:46,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 135 [2024-11-16 23:50:46,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:49,017 INFO L124 PetriNetUnfolderBase]: 7160/22997 cut-off events. [2024-11-16 23:50:49,017 INFO L125 PetriNetUnfolderBase]: For 5024/6687 co-relation queries the response was YES. [2024-11-16 23:50:49,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34987 conditions, 22997 events. 7160/22997 cut-off events. For 5024/6687 co-relation queries the response was YES. Maximal size of possible extension queue 910. Compared 277517 event pairs, 5035 based on Foata normal form. 10/20474 useless extension candidates. Maximal degree in co-relation 34978. Up to 8447 conditions per place. [2024-11-16 23:50:49,262 INFO L140 encePairwiseOnDemand]: 127/135 looper letters, 36 selfloop transitions, 7 changer transitions 0/151 dead transitions. [2024-11-16 23:50:49,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 151 transitions, 476 flow [2024-11-16 23:50:49,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:50:49,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:50:49,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 368 transitions. [2024-11-16 23:50:49,264 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.908641975308642 [2024-11-16 23:50:49,264 INFO L175 Difference]: Start difference. First operand has 145 places, 133 transitions, 324 flow. Second operand 3 states and 368 transitions. [2024-11-16 23:50:49,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 151 transitions, 476 flow [2024-11-16 23:50:49,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 151 transitions, 466 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:50:49,270 INFO L231 Difference]: Finished difference. Result has 144 places, 139 transitions, 368 flow [2024-11-16 23:50:49,270 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=368, PETRI_PLACES=144, PETRI_TRANSITIONS=139} [2024-11-16 23:50:49,271 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 6 predicate places. [2024-11-16 23:50:49,271 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 139 transitions, 368 flow [2024-11-16 23:50:49,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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 23:50:49,271 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:49,271 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] [2024-11-16 23:50:49,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-16 23:50:49,272 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-16 23:50:49,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:49,272 INFO L85 PathProgramCache]: Analyzing trace with hash 70505752, now seen corresponding path program 1 times [2024-11-16 23:50:49,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:49,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106354398] [2024-11-16 23:50:49,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:49,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:49,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:49,315 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-16 23:50:49,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:49,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106354398] [2024-11-16 23:50:49,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106354398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:49,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:49,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 23:50:49,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202376934] [2024-11-16 23:50:49,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:49,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 23:50:49,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:49,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 23:50:49,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 23:50:49,341 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 135 [2024-11-16 23:50:49,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 139 transitions, 368 flow. Second operand has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 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 23:50:49,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:49,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 135 [2024-11-16 23:50:49,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:51,320 INFO L124 PetriNetUnfolderBase]: 5437/20211 cut-off events. [2024-11-16 23:50:51,320 INFO L125 PetriNetUnfolderBase]: For 2734/2800 co-relation queries the response was YES. [2024-11-16 23:50:51,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30634 conditions, 20211 events. 5437/20211 cut-off events. For 2734/2800 co-relation queries the response was YES. Maximal size of possible extension queue 709. Compared 246210 event pairs, 2945 based on Foata normal form. 259/18070 useless extension candidates. Maximal degree in co-relation 30624. Up to 3835 conditions per place. [2024-11-16 23:50:51,442 INFO L140 encePairwiseOnDemand]: 130/135 looper letters, 40 selfloop transitions, 4 changer transitions 0/160 dead transitions. [2024-11-16 23:50:51,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 160 transitions, 510 flow [2024-11-16 23:50:51,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 23:50:51,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 23:50:51,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 485 transitions. [2024-11-16 23:50:51,444 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8981481481481481 [2024-11-16 23:50:51,444 INFO L175 Difference]: Start difference. First operand has 144 places, 139 transitions, 368 flow. Second operand 4 states and 485 transitions. [2024-11-16 23:50:51,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 160 transitions, 510 flow [2024-11-16 23:50:51,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 160 transitions, 496 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:50:51,458 INFO L231 Difference]: Finished difference. Result has 146 places, 140 transitions, 370 flow [2024-11-16 23:50:51,458 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=370, PETRI_PLACES=146, PETRI_TRANSITIONS=140} [2024-11-16 23:50:51,459 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 8 predicate places. [2024-11-16 23:50:51,459 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 140 transitions, 370 flow [2024-11-16 23:50:51,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 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 23:50:51,459 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:51,459 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 23:50:51,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-16 23:50:51,459 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-16 23:50:51,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:51,460 INFO L85 PathProgramCache]: Analyzing trace with hash 934474097, now seen corresponding path program 1 times [2024-11-16 23:50:51,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:51,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319862581] [2024-11-16 23:50:51,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:51,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:51,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:51,516 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 23:50:51,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:51,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319862581] [2024-11-16 23:50:51,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319862581] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:50:51,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44216608] [2024-11-16 23:50:51,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:51,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:50:51,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:50:51,518 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 23:50:51,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 23:50:51,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:51,589 INFO L255 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-16 23:50:51,590 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:50:51,655 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 23:50:51,657 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:50:51,700 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 23:50:51,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44216608] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:50:51,700 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:50:51,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-16 23:50:51,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775473033] [2024-11-16 23:50:51,701 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:50:51,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 23:50:51,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:51,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 23:50:51,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:50:51,795 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 135 [2024-11-16 23:50:51,796 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 140 transitions, 370 flow. Second operand has 13 states, 13 states have (on average 108.92307692307692) internal successors, (1416), 13 states have internal predecessors, (1416), 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 23:50:51,796 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:51,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 135 [2024-11-16 23:50:51,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:55,115 INFO L124 PetriNetUnfolderBase]: 6741/26788 cut-off events. [2024-11-16 23:50:55,116 INFO L125 PetriNetUnfolderBase]: For 3698/3698 co-relation queries the response was YES. [2024-11-16 23:50:55,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40390 conditions, 26788 events. 6741/26788 cut-off events. For 3698/3698 co-relation queries the response was YES. Maximal size of possible extension queue 793. Compared 343735 event pairs, 1781 based on Foata normal form. 15/23558 useless extension candidates. Maximal degree in co-relation 40379. Up to 4720 conditions per place. [2024-11-16 23:50:55,321 INFO L140 encePairwiseOnDemand]: 127/135 looper letters, 58 selfloop transitions, 11 changer transitions 0/182 dead transitions. [2024-11-16 23:50:55,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 182 transitions, 594 flow [2024-11-16 23:50:55,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 23:50:55,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-16 23:50:55,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1141 transitions. [2024-11-16 23:50:55,326 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8451851851851852 [2024-11-16 23:50:55,326 INFO L175 Difference]: Start difference. First operand has 146 places, 140 transitions, 370 flow. Second operand 10 states and 1141 transitions. [2024-11-16 23:50:55,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 182 transitions, 594 flow [2024-11-16 23:50:55,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 182 transitions, 588 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:50:55,355 INFO L231 Difference]: Finished difference. Result has 156 places, 146 transitions, 420 flow [2024-11-16 23:50:55,356 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=420, PETRI_PLACES=156, PETRI_TRANSITIONS=146} [2024-11-16 23:50:55,356 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 18 predicate places. [2024-11-16 23:50:55,356 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 146 transitions, 420 flow [2024-11-16 23:50:55,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 108.92307692307692) internal successors, (1416), 13 states have internal predecessors, (1416), 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 23:50:55,357 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:55,357 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 23:50:55,371 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 23:50:55,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:50:55,558 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-16 23:50:55,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:55,559 INFO L85 PathProgramCache]: Analyzing trace with hash -806424702, now seen corresponding path program 1 times [2024-11-16 23:50:55,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:55,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450810197] [2024-11-16 23:50:55,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:55,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:55,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:55,595 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 23:50:55,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:55,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450810197] [2024-11-16 23:50:55,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450810197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:55,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:55,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:50:55,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138391072] [2024-11-16 23:50:55,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:55,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:50:55,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:55,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:50:55,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:50:55,621 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 135 [2024-11-16 23:50:55,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 146 transitions, 420 flow. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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 23:50:55,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:55,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 135 [2024-11-16 23:50:55,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:59,500 INFO L124 PetriNetUnfolderBase]: 8605/31434 cut-off events. [2024-11-16 23:50:59,500 INFO L125 PetriNetUnfolderBase]: For 11743/15435 co-relation queries the response was YES. [2024-11-16 23:50:59,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52999 conditions, 31434 events. 8605/31434 cut-off events. For 11743/15435 co-relation queries the response was YES. Maximal size of possible extension queue 1064. Compared 415085 event pairs, 4908 based on Foata normal form. 61/28021 useless extension candidates. Maximal degree in co-relation 52985. Up to 9826 conditions per place. [2024-11-16 23:51:00,029 INFO L140 encePairwiseOnDemand]: 127/135 looper letters, 38 selfloop transitions, 11 changer transitions 0/166 dead transitions. [2024-11-16 23:51:00,029 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 166 transitions, 597 flow [2024-11-16 23:51:00,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:51:00,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:51:00,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2024-11-16 23:51:00,030 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9061728395061729 [2024-11-16 23:51:00,030 INFO L175 Difference]: Start difference. First operand has 156 places, 146 transitions, 420 flow. Second operand 3 states and 367 transitions. [2024-11-16 23:51:00,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 166 transitions, 597 flow [2024-11-16 23:51:00,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 166 transitions, 589 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-16 23:51:00,041 INFO L231 Difference]: Finished difference. Result has 158 places, 155 transitions, 508 flow [2024-11-16 23:51:00,042 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=508, PETRI_PLACES=158, PETRI_TRANSITIONS=155} [2024-11-16 23:51:00,042 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 20 predicate places. [2024-11-16 23:51:00,042 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 155 transitions, 508 flow [2024-11-16 23:51:00,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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 23:51:00,042 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:51:00,043 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 23:51:00,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-16 23:51:00,043 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-16 23:51:00,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:51:00,043 INFO L85 PathProgramCache]: Analyzing trace with hash -57105546, now seen corresponding path program 1 times [2024-11-16 23:51:00,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:51:00,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110091377] [2024-11-16 23:51:00,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:51:00,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:51:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:51:00,083 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 23:51:00,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:51:00,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110091377] [2024-11-16 23:51:00,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110091377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:51:00,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:51:00,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:51:00,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939785551] [2024-11-16 23:51:00,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:51:00,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:51:00,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:51:00,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:51:00,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:51:00,093 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 135 [2024-11-16 23:51:00,093 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 155 transitions, 508 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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 23:51:00,093 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:51:00,093 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 135 [2024-11-16 23:51:00,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:51:00,479 INFO L124 PetriNetUnfolderBase]: 530/5225 cut-off events. [2024-11-16 23:51:00,480 INFO L125 PetriNetUnfolderBase]: For 1528/1705 co-relation queries the response was YES. [2024-11-16 23:51:00,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7869 conditions, 5225 events. 530/5225 cut-off events. For 1528/1705 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 56547 event pairs, 192 based on Foata normal form. 140/4919 useless extension candidates. Maximal degree in co-relation 7854. Up to 422 conditions per place. [2024-11-16 23:51:00,504 INFO L140 encePairwiseOnDemand]: 127/135 looper letters, 16 selfloop transitions, 8 changer transitions 0/153 dead transitions. [2024-11-16 23:51:00,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 153 transitions, 535 flow [2024-11-16 23:51:00,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:51:00,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:51:00,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 376 transitions. [2024-11-16 23:51:00,505 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.928395061728395 [2024-11-16 23:51:00,505 INFO L175 Difference]: Start difference. First operand has 158 places, 155 transitions, 508 flow. Second operand 3 states and 376 transitions. [2024-11-16 23:51:00,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 153 transitions, 535 flow [2024-11-16 23:51:00,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 153 transitions, 523 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-16 23:51:00,511 INFO L231 Difference]: Finished difference. Result has 158 places, 146 transitions, 444 flow [2024-11-16 23:51:00,511 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=444, PETRI_PLACES=158, PETRI_TRANSITIONS=146} [2024-11-16 23:51:00,511 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 20 predicate places. [2024-11-16 23:51:00,512 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 146 transitions, 444 flow [2024-11-16 23:51:00,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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 23:51:00,512 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:51:00,512 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 23:51:00,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-16 23:51:00,512 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-16 23:51:00,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:51:00,513 INFO L85 PathProgramCache]: Analyzing trace with hash 220467382, now seen corresponding path program 1 times [2024-11-16 23:51:00,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:51:00,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020941870] [2024-11-16 23:51:00,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:51:00,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:51:00,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:51:00,536 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 23:51:00,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:51:00,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020941870] [2024-11-16 23:51:00,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020941870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:51:00,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:51:00,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:51:00,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890151892] [2024-11-16 23:51:00,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:51:00,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:51:00,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:51:00,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:51:00,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:51:00,553 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 135 [2024-11-16 23:51:00,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 146 transitions, 444 flow. Second operand has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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 23:51:00,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:51:00,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 135 [2024-11-16 23:51:00,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:51:01,180 INFO L124 PetriNetUnfolderBase]: 928/5698 cut-off events. [2024-11-16 23:51:01,181 INFO L125 PetriNetUnfolderBase]: For 3585/3729 co-relation queries the response was YES. [2024-11-16 23:51:01,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10309 conditions, 5698 events. 928/5698 cut-off events. For 3585/3729 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 63491 event pairs, 707 based on Foata normal form. 7/5165 useless extension candidates. Maximal degree in co-relation 10294. Up to 1545 conditions per place. [2024-11-16 23:51:01,205 INFO L140 encePairwiseOnDemand]: 130/135 looper letters, 30 selfloop transitions, 4 changer transitions 0/153 dead transitions. [2024-11-16 23:51:01,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 153 transitions, 548 flow [2024-11-16 23:51:01,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:51:01,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:51:01,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 357 transitions. [2024-11-16 23:51:01,206 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8814814814814815 [2024-11-16 23:51:01,206 INFO L175 Difference]: Start difference. First operand has 158 places, 146 transitions, 444 flow. Second operand 3 states and 357 transitions. [2024-11-16 23:51:01,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 153 transitions, 548 flow [2024-11-16 23:51:01,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 153 transitions, 540 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:51:01,212 INFO L231 Difference]: Finished difference. Result has 161 places, 149 transitions, 470 flow [2024-11-16 23:51:01,213 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=470, PETRI_PLACES=161, PETRI_TRANSITIONS=149} [2024-11-16 23:51:01,213 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 23 predicate places. [2024-11-16 23:51:01,213 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 149 transitions, 470 flow [2024-11-16 23:51:01,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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 23:51:01,213 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:51:01,214 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:51:01,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-16 23:51:01,214 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-16 23:51:01,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:51:01,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1920958776, now seen corresponding path program 1 times [2024-11-16 23:51:01,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:51:01,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953394001] [2024-11-16 23:51:01,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:51:01,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:51:01,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:51:01,332 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:51:01,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:51:01,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953394001] [2024-11-16 23:51:01,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953394001] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:51:01,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942738470] [2024-11-16 23:51:01,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:51:01,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:51:01,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:51:01,335 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 23:51:01,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 23:51:01,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:51:01,424 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-16 23:51:01,428 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:51:01,610 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:51:01,611 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:51:01,708 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:51:01,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942738470] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:51:01,709 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:51:01,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2024-11-16 23:51:01,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99507418] [2024-11-16 23:51:01,709 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:51:01,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-16 23:51:01,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:51:01,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-16 23:51:01,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-16 23:51:01,908 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 135 [2024-11-16 23:51:01,909 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 149 transitions, 470 flow. Second operand has 19 states, 19 states have (on average 109.21052631578948) internal successors, (2075), 19 states have internal predecessors, (2075), 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 23:51:01,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:51:01,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 135 [2024-11-16 23:51:01,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:51:02,756 INFO L124 PetriNetUnfolderBase]: 1216/8697 cut-off events. [2024-11-16 23:51:02,756 INFO L125 PetriNetUnfolderBase]: For 3659/3887 co-relation queries the response was YES. [2024-11-16 23:51:02,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14327 conditions, 8697 events. 1216/8697 cut-off events. For 3659/3887 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 94164 event pairs, 193 based on Foata normal form. 20/7980 useless extension candidates. Maximal degree in co-relation 14310. Up to 893 conditions per place. [2024-11-16 23:51:02,792 INFO L140 encePairwiseOnDemand]: 127/135 looper letters, 84 selfloop transitions, 14 changer transitions 1/215 dead transitions. [2024-11-16 23:51:02,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 215 transitions, 876 flow [2024-11-16 23:51:02,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 23:51:02,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-16 23:51:02,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1598 transitions. [2024-11-16 23:51:02,795 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8455026455026455 [2024-11-16 23:51:02,795 INFO L175 Difference]: Start difference. First operand has 161 places, 149 transitions, 470 flow. Second operand 14 states and 1598 transitions. [2024-11-16 23:51:02,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 215 transitions, 876 flow [2024-11-16 23:51:02,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 215 transitions, 864 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-16 23:51:02,802 INFO L231 Difference]: Finished difference. Result has 176 places, 153 transitions, 525 flow [2024-11-16 23:51:02,802 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=525, PETRI_PLACES=176, PETRI_TRANSITIONS=153} [2024-11-16 23:51:02,802 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 38 predicate places. [2024-11-16 23:51:02,803 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 153 transitions, 525 flow [2024-11-16 23:51:02,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 109.21052631578948) internal successors, (2075), 19 states have internal predecessors, (2075), 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 23:51:02,803 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:51:02,804 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:51:02,820 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-16 23:51:03,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:51:03,004 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-16 23:51:03,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:51:03,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1049382489, now seen corresponding path program 1 times [2024-11-16 23:51:03,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:51:03,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706926043] [2024-11-16 23:51:03,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:51:03,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:51:03,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:51:03,040 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-16 23:51:03,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:51:03,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706926043] [2024-11-16 23:51:03,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706926043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:51:03,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:51:03,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:51:03,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852104956] [2024-11-16 23:51:03,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:51:03,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:51:03,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:51:03,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:51:03,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:51:03,060 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 135 [2024-11-16 23:51:03,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 153 transitions, 525 flow. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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 23:51:03,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:51:03,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 135 [2024-11-16 23:51:03,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:51:03,623 INFO L124 PetriNetUnfolderBase]: 883/5756 cut-off events. [2024-11-16 23:51:03,623 INFO L125 PetriNetUnfolderBase]: For 4274/4370 co-relation queries the response was YES. [2024-11-16 23:51:03,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10822 conditions, 5756 events. 883/5756 cut-off events. For 4274/4370 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 63218 event pairs, 677 based on Foata normal form. 4/5230 useless extension candidates. Maximal degree in co-relation 10801. Up to 1476 conditions per place. [2024-11-16 23:51:03,655 INFO L140 encePairwiseOnDemand]: 130/135 looper letters, 30 selfloop transitions, 4 changer transitions 0/159 dead transitions. [2024-11-16 23:51:03,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 159 transitions, 620 flow [2024-11-16 23:51:03,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:51:03,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:51:03,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 356 transitions. [2024-11-16 23:51:03,657 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8790123456790123 [2024-11-16 23:51:03,657 INFO L175 Difference]: Start difference. First operand has 176 places, 153 transitions, 525 flow. Second operand 3 states and 356 transitions. [2024-11-16 23:51:03,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 159 transitions, 620 flow [2024-11-16 23:51:03,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 159 transitions, 602 flow, removed 2 selfloop flow, removed 7 redundant places. [2024-11-16 23:51:03,679 INFO L231 Difference]: Finished difference. Result has 173 places, 156 transitions, 543 flow [2024-11-16 23:51:03,679 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=507, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=543, PETRI_PLACES=173, PETRI_TRANSITIONS=156} [2024-11-16 23:51:03,680 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 35 predicate places. [2024-11-16 23:51:03,680 INFO L471 AbstractCegarLoop]: Abstraction has has 173 places, 156 transitions, 543 flow [2024-11-16 23:51:03,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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 23:51:03,680 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:51:03,680 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:51:03,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-16 23:51:03,680 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-16 23:51:03,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:51:03,681 INFO L85 PathProgramCache]: Analyzing trace with hash 364979727, now seen corresponding path program 1 times [2024-11-16 23:51:03,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:51:03,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066314928] [2024-11-16 23:51:03,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:51:03,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:51:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:51:03,878 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 103 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:51:03,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:51:03,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066314928] [2024-11-16 23:51:03,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066314928] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:51:03,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410456036] [2024-11-16 23:51:03,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:51:03,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:51:03,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:51:03,881 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 23:51:03,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 23:51:04,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:51:04,008 INFO L255 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-16 23:51:04,010 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:51:04,305 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:51:04,306 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 23:51:04,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410456036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:51:04,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 23:51:04,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [12] total 21 [2024-11-16 23:51:04,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579145465] [2024-11-16 23:51:04,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:51:04,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 23:51:04,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:51:04,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 23:51:04,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2024-11-16 23:51:04,414 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 135 [2024-11-16 23:51:04,415 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 156 transitions, 543 flow. Second operand has 12 states, 12 states have (on average 110.0) internal successors, (1320), 12 states have internal predecessors, (1320), 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 23:51:04,416 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:51:04,416 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 135 [2024-11-16 23:51:04,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:51:05,586 INFO L124 PetriNetUnfolderBase]: 1126/8198 cut-off events. [2024-11-16 23:51:05,587 INFO L125 PetriNetUnfolderBase]: For 5089/5393 co-relation queries the response was YES. [2024-11-16 23:51:05,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14503 conditions, 8198 events. 1126/8198 cut-off events. For 5089/5393 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 88868 event pairs, 161 based on Foata normal form. 48/7528 useless extension candidates. Maximal degree in co-relation 14481. Up to 557 conditions per place. [2024-11-16 23:51:05,634 INFO L140 encePairwiseOnDemand]: 127/135 looper letters, 89 selfloop transitions, 16 changer transitions 8/232 dead transitions. [2024-11-16 23:51:05,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 232 transitions, 990 flow [2024-11-16 23:51:05,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 23:51:05,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-16 23:51:05,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1842 transitions. [2024-11-16 23:51:05,637 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8527777777777777 [2024-11-16 23:51:05,637 INFO L175 Difference]: Start difference. First operand has 173 places, 156 transitions, 543 flow. Second operand 16 states and 1842 transitions. [2024-11-16 23:51:05,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 232 transitions, 990 flow [2024-11-16 23:51:05,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 232 transitions, 968 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-11-16 23:51:05,651 INFO L231 Difference]: Finished difference. Result has 181 places, 154 transitions, 538 flow [2024-11-16 23:51:05,651 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=538, PETRI_PLACES=181, PETRI_TRANSITIONS=154} [2024-11-16 23:51:05,651 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 43 predicate places. [2024-11-16 23:51:05,651 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 154 transitions, 538 flow [2024-11-16 23:51:05,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 110.0) internal successors, (1320), 12 states have internal predecessors, (1320), 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 23:51:05,652 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:51:05,652 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 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 23:51:05,667 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-16 23:51:05,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-16 23:51:05,857 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-16 23:51:05,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:51:05,857 INFO L85 PathProgramCache]: Analyzing trace with hash 536976053, now seen corresponding path program 1 times [2024-11-16 23:51:05,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:51:05,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926462549] [2024-11-16 23:51:05,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:51:05,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:51:05,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:51:06,153 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-16 23:51:06,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:51:06,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926462549] [2024-11-16 23:51:06,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926462549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:51:06,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:51:06,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:51:06,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234123339] [2024-11-16 23:51:06,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:51:06,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:51:06,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:51:06,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:51:06,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:51:06,218 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 135 [2024-11-16 23:51:06,219 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 154 transitions, 538 flow. Second operand has 6 states, 6 states have (on average 102.66666666666667) internal successors, (616), 6 states have internal predecessors, (616), 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 23:51:06,219 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:51:06,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 135 [2024-11-16 23:51:06,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:51:07,266 INFO L124 PetriNetUnfolderBase]: 2470/9770 cut-off events. [2024-11-16 23:51:07,266 INFO L125 PetriNetUnfolderBase]: For 3949/4177 co-relation queries the response was YES. [2024-11-16 23:51:07,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19173 conditions, 9770 events. 2470/9770 cut-off events. For 3949/4177 co-relation queries the response was YES. Maximal size of possible extension queue 341. Compared 102124 event pairs, 1086 based on Foata normal form. 0/9051 useless extension candidates. Maximal degree in co-relation 19152. Up to 2061 conditions per place. [2024-11-16 23:51:07,322 INFO L140 encePairwiseOnDemand]: 129/135 looper letters, 59 selfloop transitions, 6 changer transitions 0/185 dead transitions. [2024-11-16 23:51:07,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 185 transitions, 762 flow [2024-11-16 23:51:07,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:51:07,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:51:07,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 665 transitions. [2024-11-16 23:51:07,324 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8209876543209876 [2024-11-16 23:51:07,324 INFO L175 Difference]: Start difference. First operand has 181 places, 154 transitions, 538 flow. Second operand 6 states and 665 transitions. [2024-11-16 23:51:07,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 185 transitions, 762 flow [2024-11-16 23:51:07,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 185 transitions, 708 flow, removed 3 selfloop flow, removed 17 redundant places. [2024-11-16 23:51:07,365 INFO L231 Difference]: Finished difference. Result has 168 places, 153 transitions, 494 flow [2024-11-16 23:51:07,365 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=494, PETRI_PLACES=168, PETRI_TRANSITIONS=153} [2024-11-16 23:51:07,365 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 30 predicate places. [2024-11-16 23:51:07,366 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 153 transitions, 494 flow [2024-11-16 23:51:07,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 102.66666666666667) internal successors, (616), 6 states have internal predecessors, (616), 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 23:51:07,366 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:51:07,366 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:51:07,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-16 23:51:07,366 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-16 23:51:07,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:51:07,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1890980185, now seen corresponding path program 1 times [2024-11-16 23:51:07,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:51:07,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937513805] [2024-11-16 23:51:07,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:51:07,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:51:07,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:51:07,408 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-16 23:51:07,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:51:07,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937513805] [2024-11-16 23:51:07,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937513805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:51:07,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:51:07,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:51:07,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971693920] [2024-11-16 23:51:07,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:51:07,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:51:07,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:51:07,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:51:07,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:51:07,426 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 135 [2024-11-16 23:51:07,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 153 transitions, 494 flow. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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 23:51:07,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:51:07,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 135 [2024-11-16 23:51:07,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:51:08,320 INFO L124 PetriNetUnfolderBase]: 1353/8980 cut-off events. [2024-11-16 23:51:08,320 INFO L125 PetriNetUnfolderBase]: For 5230/5314 co-relation queries the response was YES. [2024-11-16 23:51:08,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17022 conditions, 8980 events. 1353/8980 cut-off events. For 5230/5314 co-relation queries the response was YES. Maximal size of possible extension queue 354. Compared 106916 event pairs, 605 based on Foata normal form. 0/8412 useless extension candidates. Maximal degree in co-relation 17003. Up to 1591 conditions per place. [2024-11-16 23:51:08,344 INFO L140 encePairwiseOnDemand]: 128/135 looper letters, 30 selfloop transitions, 9 changer transitions 1/166 dead transitions. [2024-11-16 23:51:08,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 166 transitions, 628 flow [2024-11-16 23:51:08,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:51:08,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:51:08,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2024-11-16 23:51:08,345 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9061728395061729 [2024-11-16 23:51:08,345 INFO L175 Difference]: Start difference. First operand has 168 places, 153 transitions, 494 flow. Second operand 3 states and 367 transitions. [2024-11-16 23:51:08,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 166 transitions, 628 flow [2024-11-16 23:51:08,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 166 transitions, 616 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:51:08,379 INFO L231 Difference]: Finished difference. Result has 167 places, 157 transitions, 558 flow [2024-11-16 23:51:08,379 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=558, PETRI_PLACES=167, PETRI_TRANSITIONS=157} [2024-11-16 23:51:08,379 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 29 predicate places. [2024-11-16 23:51:08,379 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 157 transitions, 558 flow [2024-11-16 23:51:08,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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 23:51:08,380 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:51:08,380 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:51:08,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-16 23:51:08,380 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-16 23:51:08,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:51:08,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1931179762, now seen corresponding path program 1 times [2024-11-16 23:51:08,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:51:08,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445275158] [2024-11-16 23:51:08,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:51:08,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:51:08,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:51:08,463 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-16 23:51:08,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:51:08,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445275158] [2024-11-16 23:51:08,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445275158] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:51:08,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200818817] [2024-11-16 23:51:08,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:51:08,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:51:08,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:51:08,467 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 23:51:08,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 23:51:08,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:51:08,584 INFO L255 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-16 23:51:08,586 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:51:08,727 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-16 23:51:08,727 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:51:08,856 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-16 23:51:08,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200818817] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:51:08,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:51:08,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-16 23:51:08,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047783181] [2024-11-16 23:51:08,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:51:08,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 23:51:08,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:51:08,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 23:51:08,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:51:08,934 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 135 [2024-11-16 23:51:08,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 157 transitions, 558 flow. Second operand has 13 states, 13 states have (on average 110.07692307692308) internal successors, (1431), 13 states have internal predecessors, (1431), 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 23:51:08,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:51:08,936 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 135 [2024-11-16 23:51:08,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:51:09,460 INFO L124 PetriNetUnfolderBase]: 1050/4317 cut-off events. [2024-11-16 23:51:09,460 INFO L125 PetriNetUnfolderBase]: For 1942/1970 co-relation queries the response was YES. [2024-11-16 23:51:09,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7900 conditions, 4317 events. 1050/4317 cut-off events. For 1942/1970 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 37048 event pairs, 84 based on Foata normal form. 128/4409 useless extension candidates. Maximal degree in co-relation 7880. Up to 518 conditions per place. [2024-11-16 23:51:09,474 INFO L140 encePairwiseOnDemand]: 127/135 looper letters, 88 selfloop transitions, 10 changer transitions 17/237 dead transitions. [2024-11-16 23:51:09,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 237 transitions, 1018 flow [2024-11-16 23:51:09,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 23:51:09,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-16 23:51:09,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1179 transitions. [2024-11-16 23:51:09,476 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8733333333333333 [2024-11-16 23:51:09,476 INFO L175 Difference]: Start difference. First operand has 167 places, 157 transitions, 558 flow. Second operand 10 states and 1179 transitions. [2024-11-16 23:51:09,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 237 transitions, 1018 flow [2024-11-16 23:51:09,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 237 transitions, 1000 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:51:09,481 INFO L231 Difference]: Finished difference. Result has 177 places, 154 transitions, 558 flow [2024-11-16 23:51:09,481 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=558, PETRI_PLACES=177, PETRI_TRANSITIONS=154} [2024-11-16 23:51:09,482 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 39 predicate places. [2024-11-16 23:51:09,483 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 154 transitions, 558 flow [2024-11-16 23:51:09,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.07692307692308) internal successors, (1431), 13 states have internal predecessors, (1431), 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 23:51:09,483 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:51:09,483 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:51:09,496 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-16 23:51:09,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-16 23:51:09,685 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-16 23:51:09,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:51:09,685 INFO L85 PathProgramCache]: Analyzing trace with hash 2001414021, now seen corresponding path program 1 times [2024-11-16 23:51:09,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:51:09,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164500541] [2024-11-16 23:51:09,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:51:09,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:51:09,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:51:09,872 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-16 23:51:09,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:51:09,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164500541] [2024-11-16 23:51:09,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164500541] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:51:09,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068418089] [2024-11-16 23:51:09,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:51:09,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:51:09,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:51:09,876 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 23:51:09,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-16 23:51:10,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:51:10,009 INFO L255 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-16 23:51:10,011 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:51:10,266 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-16 23:51:10,266 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:51:10,428 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-16 23:51:10,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068418089] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:51:10,428 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:51:10,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2024-11-16 23:51:10,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006367463] [2024-11-16 23:51:10,428 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:51:10,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-16 23:51:10,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:51:10,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-16 23:51:10,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-16 23:51:10,563 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 135 [2024-11-16 23:51:10,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 154 transitions, 558 flow. Second operand has 19 states, 19 states have (on average 109.78947368421052) internal successors, (2086), 19 states have internal predecessors, (2086), 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 23:51:10,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:51:10,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 135 [2024-11-16 23:51:10,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:51:11,049 INFO L124 PetriNetUnfolderBase]: 1003/3859 cut-off events. [2024-11-16 23:51:11,049 INFO L125 PetriNetUnfolderBase]: For 1928/1928 co-relation queries the response was YES. [2024-11-16 23:51:11,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7753 conditions, 3859 events. 1003/3859 cut-off events. For 1928/1928 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 33201 event pairs, 51 based on Foata normal form. 12/3847 useless extension candidates. Maximal degree in co-relation 7730. Up to 496 conditions per place. [2024-11-16 23:51:11,068 INFO L140 encePairwiseOnDemand]: 129/135 looper letters, 0 selfloop transitions, 0 changer transitions 221/221 dead transitions. [2024-11-16 23:51:11,072 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 221 transitions, 956 flow [2024-11-16 23:51:11,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 23:51:11,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-16 23:51:11,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1511 transitions. [2024-11-16 23:51:11,075 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.860968660968661 [2024-11-16 23:51:11,076 INFO L175 Difference]: Start difference. First operand has 177 places, 154 transitions, 558 flow. Second operand 13 states and 1511 transitions. [2024-11-16 23:51:11,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 221 transitions, 956 flow [2024-11-16 23:51:11,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 221 transitions, 899 flow, removed 16 selfloop flow, removed 14 redundant places. [2024-11-16 23:51:11,084 INFO L231 Difference]: Finished difference. Result has 159 places, 0 transitions, 0 flow [2024-11-16 23:51:11,084 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=0, PETRI_PLACES=159, PETRI_TRANSITIONS=0} [2024-11-16 23:51:11,085 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 21 predicate places. [2024-11-16 23:51:11,085 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 0 transitions, 0 flow [2024-11-16 23:51:11,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 109.78947368421052) internal successors, (2086), 19 states have internal predecessors, (2086), 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 23:51:11,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2024-11-16 23:51:11,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-11-16 23:51:11,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-11-16 23:51:11,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining) [2024-11-16 23:51:11,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-11-16 23:51:11,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-11-16 23:51:11,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-11-16 23:51:11,087 INFO L782 garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-11-16 23:51:11,087 INFO L782 garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-11-16 23:51:11,100 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-16 23:51:11,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:51:11,288 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:51:11,295 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 4 thread instances [2024-11-16 23:51:11,297 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 23:51:11,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:51:11 BasicIcfg [2024-11-16 23:51:11,310 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 23:51:11,310 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 23:51:11,310 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 23:51:11,310 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 23:51:11,311 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:50:35" (3/4) ... [2024-11-16 23:51:11,315 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 23:51:11,318 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread [2024-11-16 23:51:11,321 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-16 23:51:11,321 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 23:51:11,321 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 23:51:11,388 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 23:51:11,389 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 23:51:11,389 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 23:51:11,389 INFO L158 Benchmark]: Toolchain (without parser) took 36490.35ms. Allocated memory was 209.7MB in the beginning and 10.7GB in the end (delta: 10.5GB). Free memory was 140.0MB in the beginning and 9.1GB in the end (delta: -9.0GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2024-11-16 23:51:11,390 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 109.1MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 23:51:11,390 INFO L158 Benchmark]: CACSL2BoogieTranslator took 447.44ms. Allocated memory is still 209.7MB. Free memory was 139.8MB in the beginning and 175.8MB in the end (delta: -36.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-16 23:51:11,390 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.39ms. Allocated memory is still 209.7MB. Free memory was 175.8MB in the beginning and 173.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 23:51:11,391 INFO L158 Benchmark]: Boogie Preprocessor took 18.53ms. Allocated memory is still 209.7MB. Free memory was 173.7MB in the beginning and 172.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 23:51:11,391 INFO L158 Benchmark]: IcfgBuilder took 403.95ms. Allocated memory is still 209.7MB. Free memory was 172.2MB in the beginning and 156.2MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-16 23:51:11,391 INFO L158 Benchmark]: TraceAbstraction took 35502.83ms. Allocated memory was 209.7MB in the beginning and 10.7GB in the end (delta: 10.5GB). Free memory was 155.4MB in the beginning and 9.1GB in the end (delta: -9.0GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2024-11-16 23:51:11,392 INFO L158 Benchmark]: Witness Printer took 78.85ms. Allocated memory is still 10.7GB. Free memory was 9.1GB in the beginning and 9.1GB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-16 23:51:11,393 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 109.1MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 447.44ms. Allocated memory is still 209.7MB. Free memory was 139.8MB in the beginning and 175.8MB in the end (delta: -36.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.39ms. Allocated memory is still 209.7MB. Free memory was 175.8MB in the beginning and 173.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.53ms. Allocated memory is still 209.7MB. Free memory was 173.7MB in the beginning and 172.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 403.95ms. Allocated memory is still 209.7MB. Free memory was 172.2MB in the beginning and 156.2MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 35502.83ms. Allocated memory was 209.7MB in the beginning and 10.7GB in the end (delta: 10.5GB). Free memory was 155.4MB in the beginning and 9.1GB in the end (delta: -9.0GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. * Witness Printer took 78.85ms. Allocated memory is still 10.7GB. Free memory was 9.1GB in the beginning and 9.1GB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 698]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 685]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 96 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 184 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 107 mSDsluCounter, 45 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 252 IncrementalHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 25 mSDtfsCounter, 252 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=197occurred in iteration=4, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 195 NumberOfCodeBlocks, 195 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 145 ConstructedInterpolants, 0 QuantifiedInterpolants, 338 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 113 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.9s, OverallIterations: 9, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 437 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 312 mSDsluCounter, 102 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 62 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 582 IncrementalHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 40 mSDtfsCounter, 582 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 122 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=262occurred in iteration=5, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 419 NumberOfCodeBlocks, 419 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 391 ConstructedInterpolants, 0 QuantifiedInterpolants, 948 SizeOfPredicates, 4 NumberOfNonLiveVariables, 118 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 26/32 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 130 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.2s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 549 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 385 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 70 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 854 IncrementalHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 10 mSDtfsCounter, 854 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 124 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=433occurred in iteration=7, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 509 NumberOfCodeBlocks, 509 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 462 ConstructedInterpolants, 0 QuantifiedInterpolants, 1021 SizeOfPredicates, 4 NumberOfNonLiveVariables, 118 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 68/74 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 4 thread instances CFG has 6 procedures, 147 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 27.7s, OverallIterations: 16, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 23.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1975 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1662 mSDsluCounter, 419 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 343 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3506 IncrementalHoareTripleChecker+Invalid, 3545 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 76 mSDtfsCounter, 3506 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1092 GetRequests, 956 SyntacticMatches, 12 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 775 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=558occurred in iteration=14, InterpolantAutomatonStates: 103, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 1741 NumberOfCodeBlocks, 1741 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 2162 ConstructedInterpolants, 0 QuantifiedInterpolants, 6788 SizeOfPredicates, 34 NumberOfNonLiveVariables, 1443 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 25 InterpolantComputations, 12 PerfectInterpolantSequences, 1347/1718 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-16 23:51:11,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE