./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_23-idxsense_nr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version da043454 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_23-idxsense_nr.c -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 b5265264e8752265785c2f6c8479cf28921af5deba006a9eea06fcc3336a4e15 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 11:08:32,813 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 11:08:32,863 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-04-29 11:08:32,866 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 11:08:32,866 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 11:08:32,880 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 11:08:32,881 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 11:08:32,881 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 11:08:32,881 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 11:08:32,881 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 11:08:32,881 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 11:08:32,881 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 11:08:32,881 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 11:08:32,882 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 11:08:32,882 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-29 11:08:32,882 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 11:08:32,882 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-29 11:08:32,882 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 11:08:32,882 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 11:08:32,882 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-29 11:08:32,882 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 11:08:32,882 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-29 11:08:32,882 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-29 11:08:32,882 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-29 11:08:32,882 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 11:08:32,883 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-29 11:08:32,883 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 11:08:32,883 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 11:08:32,883 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 11:08:32,883 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:08:32,883 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:08:32,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:08:32,883 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 11:08:32,883 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:08:32,883 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:08:32,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:08:32,883 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 11:08:32,883 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 11:08:32,883 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-29 11:08:32,883 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-29 11:08:32,883 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-29 11:08:32,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-29 11:08:32,883 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 11:08:32,883 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 11:08:32,883 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 11:08:32,883 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5265264e8752265785c2f6c8479cf28921af5deba006a9eea06fcc3336a4e15 [2025-04-29 11:08:33,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 11:08:33,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 11:08:33,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 11:08:33,119 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 11:08:33,121 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 11:08:33,122 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_23-idxsense_nr.c [2025-04-29 11:08:34,458 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7143bc13/e7e13af60702445b8e79ef3a46210693/FLAG81dcd597d [2025-04-29 11:08:34,651 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 11:08:34,651 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_23-idxsense_nr.c [2025-04-29 11:08:34,653 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:08:34,660 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7143bc13/e7e13af60702445b8e79ef3a46210693/FLAG81dcd597d [2025-04-29 11:08:35,509 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7143bc13/e7e13af60702445b8e79ef3a46210693 [2025-04-29 11:08:35,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 11:08:35,512 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 11:08:35,513 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 11:08:35,513 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 11:08:35,516 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 11:08:35,516 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:08:35" (1/1) ... [2025-04-29 11:08:35,517 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@692a06c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:35, skipping insertion in model container [2025-04-29 11:08:35,517 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:08:35" (1/1) ... [2025-04-29 11:08:35,526 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 11:08:35,702 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:08:35,713 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 11:08:35,748 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:08:35,765 INFO L204 MainTranslator]: Completed translation [2025-04-29 11:08:35,766 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:35 WrapperNode [2025-04-29 11:08:35,766 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 11:08:35,767 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 11:08:35,767 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 11:08:35,767 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 11:08:35,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:35" (1/1) ... [2025-04-29 11:08:35,779 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:35" (1/1) ... [2025-04-29 11:08:35,803 INFO L138 Inliner]: procedures = 11, calls = 37, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 90 [2025-04-29 11:08:35,806 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 11:08:35,806 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 11:08:35,806 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 11:08:35,806 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 11:08:35,812 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:35" (1/1) ... [2025-04-29 11:08:35,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:35" (1/1) ... [2025-04-29 11:08:35,816 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:35" (1/1) ... [2025-04-29 11:08:35,818 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:35" (1/1) ... [2025-04-29 11:08:35,825 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:35" (1/1) ... [2025-04-29 11:08:35,826 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:35" (1/1) ... [2025-04-29 11:08:35,828 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:35" (1/1) ... [2025-04-29 11:08:35,828 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:35" (1/1) ... [2025-04-29 11:08:35,829 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:35" (1/1) ... [2025-04-29 11:08:35,832 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 11:08:35,832 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 11:08:35,833 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 11:08:35,833 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 11:08:35,837 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:35" (1/1) ... [2025-04-29 11:08:35,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:08:35,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:08:35,862 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-29 11:08:35,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-29 11:08:35,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-04-29 11:08:35,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-29 11:08:35,882 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-29 11:08:35,882 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-29 11:08:35,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 11:08:35,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 11:08:35,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-04-29 11:08:35,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-29 11:08:35,882 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-29 11:08:35,882 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-29 11:08:35,883 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-29 11:08:35,945 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 11:08:35,946 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 11:08:36,185 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-29 11:08:36,185 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 11:08:36,216 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 11:08:36,217 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-29 11:08:36,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:08:36 BoogieIcfgContainer [2025-04-29 11:08:36,218 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 11:08:36,220 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 11:08:36,220 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 11:08:36,224 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 11:08:36,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 11:08:35" (1/3) ... [2025-04-29 11:08:36,224 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70fc0ccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:08:36, skipping insertion in model container [2025-04-29 11:08:36,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:35" (2/3) ... [2025-04-29 11:08:36,225 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70fc0ccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:08:36, skipping insertion in model container [2025-04-29 11:08:36,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:08:36" (3/3) ... [2025-04-29 11:08:36,226 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_23-idxsense_nr.c [2025-04-29 11:08:36,238 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 11:08:36,240 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_23-idxsense_nr.c that has 2 procedures, 120 locations, 119 edges, 1 initial locations, 1 loop locations, and 6 error locations. [2025-04-29 11:08:36,242 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-29 11:08:36,308 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-29 11:08:36,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 123 places, 120 transitions, 244 flow [2025-04-29 11:08:36,390 INFO L116 PetriNetUnfolderBase]: 1/119 cut-off events. [2025-04-29 11:08:36,392 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:08:36,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 119 events. 1/119 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2025-04-29 11:08:36,395 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 120 transitions, 244 flow [2025-04-29 11:08:36,398 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 119 transitions, 241 flow [2025-04-29 11:08:36,403 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 11:08:36,415 INFO L340 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;@6ffdfa75, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 11:08:36,416 INFO L341 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-04-29 11:08:36,426 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-29 11:08:36,427 INFO L116 PetriNetUnfolderBase]: 1/57 cut-off events. [2025-04-29 11:08:36,427 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:08:36,427 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:36,427 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:08:36,428 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:08:36,435 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:36,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1405000953, now seen corresponding path program 1 times [2025-04-29 11:08:36,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:36,442 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579460395] [2025-04-29 11:08:36,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:36,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:36,499 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-04-29 11:08:36,513 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-04-29 11:08:36,514 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:36,514 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:36,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:08:36,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:36,654 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579460395] [2025-04-29 11:08:36,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579460395] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:36,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:36,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-29 11:08:36,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890622284] [2025-04-29 11:08:36,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:36,661 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:08:36,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:36,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:08:36,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:08:36,701 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 120 [2025-04-29 11:08:36,704 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 119 transitions, 241 flow. Second operand has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:08:36,704 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:36,704 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 120 [2025-04-29 11:08:36,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:36,791 INFO L116 PetriNetUnfolderBase]: 11/258 cut-off events. [2025-04-29 11:08:36,791 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-29 11:08:36,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 258 events. 11/258 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 590 event pairs, 10 based on Foata normal form. 1/240 useless extension candidates. Maximal degree in co-relation 240. Up to 34 conditions per place. [2025-04-29 11:08:36,793 INFO L140 encePairwiseOnDemand]: 117/120 looper letters, 12 selfloop transitions, 2 changer transitions 0/120 dead transitions. [2025-04-29 11:08:36,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 120 transitions, 271 flow [2025-04-29 11:08:36,796 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:08:36,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:08:36,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 336 transitions. [2025-04-29 11:08:36,806 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9333333333333333 [2025-04-29 11:08:36,808 INFO L175 Difference]: Start difference. First operand has 122 places, 119 transitions, 241 flow. Second operand 3 states and 336 transitions. [2025-04-29 11:08:36,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 120 transitions, 271 flow [2025-04-29 11:08:36,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 120 transitions, 270 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-29 11:08:36,820 INFO L231 Difference]: Finished difference. Result has 124 places, 120 transitions, 252 flow [2025-04-29 11:08:36,822 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=124, PETRI_TRANSITIONS=120} [2025-04-29 11:08:36,825 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, 2 predicate places. [2025-04-29 11:08:36,826 INFO L485 AbstractCegarLoop]: Abstraction has has 124 places, 120 transitions, 252 flow [2025-04-29 11:08:36,827 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:08:36,827 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:36,827 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:08:36,828 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-29 11:08:36,828 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:08:36,828 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:36,829 INFO L85 PathProgramCache]: Analyzing trace with hash -9739332, now seen corresponding path program 1 times [2025-04-29 11:08:36,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:36,829 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493640706] [2025-04-29 11:08:36,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:36,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:36,848 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-04-29 11:08:36,886 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-04-29 11:08:36,886 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:36,886 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:37,001 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:08:37,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:37,003 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493640706] [2025-04-29 11:08:37,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493640706] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-29 11:08:37,003 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953946256] [2025-04-29 11:08:37,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:37,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:08:37,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:08:37,005 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) [2025-04-29 11:08:37,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-04-29 11:08:37,055 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-04-29 11:08:37,076 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-04-29 11:08:37,076 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:37,076 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:37,078 INFO L256 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-29 11:08:37,081 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:08:37,136 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:08:37,137 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-29 11:08:37,185 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:08:37,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953946256] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-29 11:08:37,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-29 11:08:37,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-04-29 11:08:37,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969705270] [2025-04-29 11:08:37,188 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-29 11:08:37,189 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-04-29 11:08:37,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:37,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-04-29 11:08:37,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-04-29 11:08:37,225 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 120 [2025-04-29 11:08:37,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 120 transitions, 252 flow. Second operand has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:08:37,226 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:37,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 120 [2025-04-29 11:08:37,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:37,347 INFO L116 PetriNetUnfolderBase]: 11/265 cut-off events. [2025-04-29 11:08:37,347 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-29 11:08:37,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322 conditions, 265 events. 11/265 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 586 event pairs, 10 based on Foata normal form. 2/248 useless extension candidates. Maximal degree in co-relation 277. Up to 34 conditions per place. [2025-04-29 11:08:37,349 INFO L140 encePairwiseOnDemand]: 114/120 looper letters, 16 selfloop transitions, 9 changer transitions 0/128 dead transitions. [2025-04-29 11:08:37,349 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 128 transitions, 320 flow [2025-04-29 11:08:37,350 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-29 11:08:37,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-04-29 11:08:37,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 963 transitions. [2025-04-29 11:08:37,353 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8916666666666667 [2025-04-29 11:08:37,353 INFO L175 Difference]: Start difference. First operand has 124 places, 120 transitions, 252 flow. Second operand 9 states and 963 transitions. [2025-04-29 11:08:37,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 128 transitions, 320 flow [2025-04-29 11:08:37,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 128 transitions, 318 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-29 11:08:37,358 INFO L231 Difference]: Finished difference. Result has 134 places, 126 transitions, 300 flow [2025-04-29 11:08:37,359 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=300, PETRI_PLACES=134, PETRI_TRANSITIONS=126} [2025-04-29 11:08:37,359 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, 12 predicate places. [2025-04-29 11:08:37,360 INFO L485 AbstractCegarLoop]: Abstraction has has 134 places, 126 transitions, 300 flow [2025-04-29 11:08:37,360 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:08:37,361 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:37,362 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2025-04-29 11:08:37,369 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-04-29 11:08:37,563 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:08:37,563 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:08:37,564 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:37,564 INFO L85 PathProgramCache]: Analyzing trace with hash 2008739484, now seen corresponding path program 2 times [2025-04-29 11:08:37,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:37,564 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785981210] [2025-04-29 11:08:37,564 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-29 11:08:37,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:37,582 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 60 statements into 2 equivalence classes. [2025-04-29 11:08:37,599 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 45 of 60 statements. [2025-04-29 11:08:37,599 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-29 11:08:37,599 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:37,967 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-04-29 11:08:37,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:37,968 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785981210] [2025-04-29 11:08:37,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785981210] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:37,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:37,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:08:37,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862609004] [2025-04-29 11:08:37,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:37,969 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:08:37,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:37,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:08:37,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:08:38,220 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 120 [2025-04-29 11:08:38,222 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 126 transitions, 300 flow. Second operand has 6 states, 6 states have (on average 91.33333333333333) internal successors, (548), 6 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:08:38,222 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:38,222 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 120 [2025-04-29 11:08:38,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:38,495 INFO L116 PetriNetUnfolderBase]: 285/1043 cut-off events. [2025-04-29 11:08:38,495 INFO L117 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-04-29 11:08:38,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1696 conditions, 1043 events. 285/1043 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 6248 event pairs, 73 based on Foata normal form. 0/997 useless extension candidates. Maximal degree in co-relation 1622. Up to 287 conditions per place. [2025-04-29 11:08:38,500 INFO L140 encePairwiseOnDemand]: 98/120 looper letters, 98 selfloop transitions, 42 changer transitions 0/236 dead transitions. [2025-04-29 11:08:38,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 236 transitions, 800 flow [2025-04-29 11:08:38,500 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:08:38,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:08:38,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 682 transitions. [2025-04-29 11:08:38,502 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9472222222222222 [2025-04-29 11:08:38,502 INFO L175 Difference]: Start difference. First operand has 134 places, 126 transitions, 300 flow. Second operand 6 states and 682 transitions. [2025-04-29 11:08:38,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 236 transitions, 800 flow [2025-04-29 11:08:38,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 236 transitions, 794 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-04-29 11:08:38,505 INFO L231 Difference]: Finished difference. Result has 143 places, 172 transitions, 610 flow [2025-04-29 11:08:38,506 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=610, PETRI_PLACES=143, PETRI_TRANSITIONS=172} [2025-04-29 11:08:38,506 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, 21 predicate places. [2025-04-29 11:08:38,506 INFO L485 AbstractCegarLoop]: Abstraction has has 143 places, 172 transitions, 610 flow [2025-04-29 11:08:38,506 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 91.33333333333333) internal successors, (548), 6 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:08:38,506 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:38,507 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2025-04-29 11:08:38,507 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-29 11:08:38,507 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:08:38,507 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:38,507 INFO L85 PathProgramCache]: Analyzing trace with hash -82124865, now seen corresponding path program 1 times [2025-04-29 11:08:38,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:38,507 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160119388] [2025-04-29 11:08:38,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:38,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:38,514 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-04-29 11:08:38,521 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-04-29 11:08:38,522 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:38,522 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:38,644 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:08:38,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:38,644 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160119388] [2025-04-29 11:08:38,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160119388] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-29 11:08:38,644 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503262050] [2025-04-29 11:08:38,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:38,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:08:38,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:08:38,646 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) [2025-04-29 11:08:38,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-29 11:08:38,681 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-04-29 11:08:38,696 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-04-29 11:08:38,697 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:38,697 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:38,698 INFO L256 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-04-29 11:08:38,699 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:08:38,745 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:08:38,746 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-29 11:08:38,836 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:08:38,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503262050] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-29 11:08:38,838 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-29 11:08:38,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-04-29 11:08:38,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235379940] [2025-04-29 11:08:38,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-29 11:08:38,839 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-29 11:08:38,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:38,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-29 11:08:38,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-04-29 11:08:38,890 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 120 [2025-04-29 11:08:38,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 172 transitions, 610 flow. Second operand has 18 states, 18 states have (on average 106.0) internal successors, (1908), 18 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:08:38,892 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:38,892 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 120 [2025-04-29 11:08:38,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:39,169 INFO L116 PetriNetUnfolderBase]: 127/798 cut-off events. [2025-04-29 11:08:39,170 INFO L117 PetriNetUnfolderBase]: For 135/150 co-relation queries the response was YES. [2025-04-29 11:08:39,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1509 conditions, 798 events. 127/798 cut-off events. For 135/150 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4658 event pairs, 45 based on Foata normal form. 4/783 useless extension candidates. Maximal degree in co-relation 1359. Up to 132 conditions per place. [2025-04-29 11:08:39,174 INFO L140 encePairwiseOnDemand]: 114/120 looper letters, 20 selfloop transitions, 21 changer transitions 0/190 dead transitions. [2025-04-29 11:08:39,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 190 transitions, 780 flow [2025-04-29 11:08:39,174 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-29 11:08:39,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-04-29 11:08:39,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2229 transitions. [2025-04-29 11:08:39,178 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8845238095238095 [2025-04-29 11:08:39,178 INFO L175 Difference]: Start difference. First operand has 143 places, 172 transitions, 610 flow. Second operand 21 states and 2229 transitions. [2025-04-29 11:08:39,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 190 transitions, 780 flow [2025-04-29 11:08:39,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 190 transitions, 780 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-29 11:08:39,183 INFO L231 Difference]: Finished difference. Result has 168 places, 185 transitions, 740 flow [2025-04-29 11:08:39,184 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=740, PETRI_PLACES=168, PETRI_TRANSITIONS=185} [2025-04-29 11:08:39,184 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, 46 predicate places. [2025-04-29 11:08:39,184 INFO L485 AbstractCegarLoop]: Abstraction has has 168 places, 185 transitions, 740 flow [2025-04-29 11:08:39,185 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 106.0) internal successors, (1908), 18 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:08:39,185 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:39,185 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:08:39,192 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-04-29 11:08:39,386 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2025-04-29 11:08:39,386 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:08:39,387 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:39,387 INFO L85 PathProgramCache]: Analyzing trace with hash -189806081, now seen corresponding path program 2 times [2025-04-29 11:08:39,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:39,387 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385382591] [2025-04-29 11:08:39,387 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-29 11:08:39,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:39,397 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 81 statements into 2 equivalence classes. [2025-04-29 11:08:39,404 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 46 of 81 statements. [2025-04-29 11:08:39,404 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-29 11:08:39,404 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:39,605 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-04-29 11:08:39,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:39,606 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385382591] [2025-04-29 11:08:39,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385382591] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:39,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:39,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:08:39,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257176263] [2025-04-29 11:08:39,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:39,606 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:08:39,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:39,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:08:39,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:08:39,872 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 120 [2025-04-29 11:08:39,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 185 transitions, 740 flow. Second operand has 6 states, 6 states have (on average 102.33333333333333) internal successors, (614), 6 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:08:39,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:39,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 120 [2025-04-29 11:08:39,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:40,008 INFO L116 PetriNetUnfolderBase]: 141/860 cut-off events. [2025-04-29 11:08:40,008 INFO L117 PetriNetUnfolderBase]: For 146/168 co-relation queries the response was YES. [2025-04-29 11:08:40,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1602 conditions, 860 events. 141/860 cut-off events. For 146/168 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 5133 event pairs, 49 based on Foata normal form. 3/841 useless extension candidates. Maximal degree in co-relation 1444. Up to 129 conditions per place. [2025-04-29 11:08:40,015 INFO L140 encePairwiseOnDemand]: 114/120 looper letters, 21 selfloop transitions, 5 changer transitions 0/192 dead transitions. [2025-04-29 11:08:40,016 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 192 transitions, 806 flow [2025-04-29 11:08:40,016 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:08:40,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:08:40,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 633 transitions. [2025-04-29 11:08:40,018 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8791666666666667 [2025-04-29 11:08:40,018 INFO L175 Difference]: Start difference. First operand has 168 places, 185 transitions, 740 flow. Second operand 6 states and 633 transitions. [2025-04-29 11:08:40,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 192 transitions, 806 flow [2025-04-29 11:08:40,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 192 transitions, 782 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-04-29 11:08:40,025 INFO L231 Difference]: Finished difference. Result has 166 places, 184 transitions, 724 flow [2025-04-29 11:08:40,025 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=714, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=724, PETRI_PLACES=166, PETRI_TRANSITIONS=184} [2025-04-29 11:08:40,025 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, 44 predicate places. [2025-04-29 11:08:40,025 INFO L485 AbstractCegarLoop]: Abstraction has has 166 places, 184 transitions, 724 flow [2025-04-29 11:08:40,026 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 102.33333333333333) internal successors, (614), 6 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:08:40,026 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:40,026 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:08:40,027 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-29 11:08:40,027 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:08:40,028 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:40,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1319464351, now seen corresponding path program 1 times [2025-04-29 11:08:40,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:40,028 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417324765] [2025-04-29 11:08:40,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:40,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:40,039 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-04-29 11:08:40,047 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-04-29 11:08:40,047 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:40,047 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:40,302 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:08:40,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:40,302 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417324765] [2025-04-29 11:08:40,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417324765] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-29 11:08:40,302 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550125020] [2025-04-29 11:08:40,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:40,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:08:40,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:08:40,305 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) [2025-04-29 11:08:40,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-04-29 11:08:40,346 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-04-29 11:08:40,371 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-04-29 11:08:40,371 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:40,371 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:40,372 INFO L256 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-04-29 11:08:40,374 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:08:40,452 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:08:40,452 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-29 11:08:40,642 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:08:40,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [550125020] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-29 11:08:40,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-29 11:08:40,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2025-04-29 11:08:40,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937859931] [2025-04-29 11:08:40,643 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-29 11:08:40,644 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-04-29 11:08:40,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:40,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-04-29 11:08:40,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-04-29 11:08:40,670 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 120 [2025-04-29 11:08:40,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 184 transitions, 724 flow. Second operand has 23 states, 23 states have (on average 106.08695652173913) internal successors, (2440), 23 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:08:40,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:40,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 120 [2025-04-29 11:08:40,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:40,989 INFO L116 PetriNetUnfolderBase]: 127/812 cut-off events. [2025-04-29 11:08:40,990 INFO L117 PetriNetUnfolderBase]: For 252/267 co-relation queries the response was YES. [2025-04-29 11:08:40,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1604 conditions, 812 events. 127/812 cut-off events. For 252/267 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4653 event pairs, 45 based on Foata normal form. 3/797 useless extension candidates. Maximal degree in co-relation 1370. Up to 132 conditions per place. [2025-04-29 11:08:40,994 INFO L140 encePairwiseOnDemand]: 114/120 looper letters, 23 selfloop transitions, 30 changer transitions 0/201 dead transitions. [2025-04-29 11:08:40,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 201 transitions, 952 flow [2025-04-29 11:08:40,995 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-04-29 11:08:40,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-04-29 11:08:40,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 3176 transitions. [2025-04-29 11:08:41,000 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8822222222222222 [2025-04-29 11:08:41,001 INFO L175 Difference]: Start difference. First operand has 166 places, 184 transitions, 724 flow. Second operand 30 states and 3176 transitions. [2025-04-29 11:08:41,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 201 transitions, 952 flow [2025-04-29 11:08:41,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 201 transitions, 942 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-04-29 11:08:41,007 INFO L231 Difference]: Finished difference. Result has 194 places, 194 transitions, 866 flow [2025-04-29 11:08:41,007 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=714, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=866, PETRI_PLACES=194, PETRI_TRANSITIONS=194} [2025-04-29 11:08:41,008 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, 72 predicate places. [2025-04-29 11:08:41,008 INFO L485 AbstractCegarLoop]: Abstraction has has 194 places, 194 transitions, 866 flow [2025-04-29 11:08:41,009 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 106.08695652173913) internal successors, (2440), 23 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:08:41,009 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:41,009 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:08:41,016 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-04-29 11:08:41,214 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:08:41,214 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:08:41,214 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:41,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1525580884, now seen corresponding path program 2 times [2025-04-29 11:08:41,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:41,215 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143793546] [2025-04-29 11:08:41,215 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-29 11:08:41,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:41,223 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 103 statements into 2 equivalence classes. [2025-04-29 11:08:41,228 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 53 of 103 statements. [2025-04-29 11:08:41,230 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-29 11:08:41,230 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:41,407 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-04-29 11:08:41,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:41,407 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143793546] [2025-04-29 11:08:41,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143793546] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:41,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:41,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:08:41,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547858488] [2025-04-29 11:08:41,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:41,408 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:08:41,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:41,408 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:08:41,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:08:41,612 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 120 [2025-04-29 11:08:41,612 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 194 transitions, 866 flow. Second operand has 6 states, 6 states have (on average 91.33333333333333) internal successors, (548), 6 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:08:41,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:41,613 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 120 [2025-04-29 11:08:41,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:41,845 INFO L116 PetriNetUnfolderBase]: 445/1466 cut-off events. [2025-04-29 11:08:41,845 INFO L117 PetriNetUnfolderBase]: For 715/749 co-relation queries the response was YES. [2025-04-29 11:08:41,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3629 conditions, 1466 events. 445/1466 cut-off events. For 715/749 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 9417 event pairs, 126 based on Foata normal form. 24/1467 useless extension candidates. Maximal degree in co-relation 3394. Up to 640 conditions per place. [2025-04-29 11:08:41,852 INFO L140 encePairwiseOnDemand]: 103/120 looper letters, 109 selfloop transitions, 53 changer transitions 6/285 dead transitions. [2025-04-29 11:08:41,852 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 285 transitions, 1570 flow [2025-04-29 11:08:41,852 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:08:41,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:08:41,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 642 transitions. [2025-04-29 11:08:41,854 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8916666666666667 [2025-04-29 11:08:41,854 INFO L175 Difference]: Start difference. First operand has 194 places, 194 transitions, 866 flow. Second operand 6 states and 642 transitions. [2025-04-29 11:08:41,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 285 transitions, 1570 flow [2025-04-29 11:08:41,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 285 transitions, 1524 flow, removed 5 selfloop flow, removed 18 redundant places. [2025-04-29 11:08:41,860 INFO L231 Difference]: Finished difference. Result has 186 places, 245 transitions, 1326 flow [2025-04-29 11:08:41,860 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=820, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1326, PETRI_PLACES=186, PETRI_TRANSITIONS=245} [2025-04-29 11:08:41,861 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, 64 predicate places. [2025-04-29 11:08:41,861 INFO L485 AbstractCegarLoop]: Abstraction has has 186 places, 245 transitions, 1326 flow [2025-04-29 11:08:41,861 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 91.33333333333333) internal successors, (548), 6 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:08:41,861 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:41,861 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:08:41,861 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-04-29 11:08:41,861 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:08:41,862 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:41,862 INFO L85 PathProgramCache]: Analyzing trace with hash -684919383, now seen corresponding path program 1 times [2025-04-29 11:08:41,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:41,862 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246835543] [2025-04-29 11:08:41,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:41,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:41,871 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-04-29 11:08:41,883 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-04-29 11:08:41,886 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:41,886 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:42,182 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2025-04-29 11:08:42,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:42,182 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246835543] [2025-04-29 11:08:42,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246835543] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:42,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:42,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:08:42,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384364325] [2025-04-29 11:08:42,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:42,183 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:08:42,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:42,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:08:42,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:08:42,439 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 120 [2025-04-29 11:08:42,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 245 transitions, 1326 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) [2025-04-29 11:08:42,440 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:42,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 120 [2025-04-29 11:08:42,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:42,565 INFO L116 PetriNetUnfolderBase]: 255/1207 cut-off events. [2025-04-29 11:08:42,565 INFO L117 PetriNetUnfolderBase]: For 1023/1084 co-relation queries the response was YES. [2025-04-29 11:08:42,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3002 conditions, 1207 events. 255/1207 cut-off events. For 1023/1084 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 7964 event pairs, 57 based on Foata normal form. 9/1196 useless extension candidates. Maximal degree in co-relation 2783. Up to 215 conditions per place. [2025-04-29 11:08:42,572 INFO L140 encePairwiseOnDemand]: 114/120 looper letters, 25 selfloop transitions, 5 changer transitions 0/252 dead transitions. [2025-04-29 11:08:42,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 252 transitions, 1400 flow [2025-04-29 11:08:42,572 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:08:42,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:08:42,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 613 transitions. [2025-04-29 11:08:42,574 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8513888888888889 [2025-04-29 11:08:42,574 INFO L175 Difference]: Start difference. First operand has 186 places, 245 transitions, 1326 flow. Second operand 6 states and 613 transitions. [2025-04-29 11:08:42,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 252 transitions, 1400 flow [2025-04-29 11:08:42,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 252 transitions, 1392 flow, removed 4 selfloop flow, removed 0 redundant places. [2025-04-29 11:08:42,582 INFO L231 Difference]: Finished difference. Result has 190 places, 244 transitions, 1326 flow [2025-04-29 11:08:42,583 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=1316, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1326, PETRI_PLACES=190, PETRI_TRANSITIONS=244} [2025-04-29 11:08:42,583 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, 68 predicate places. [2025-04-29 11:08:42,583 INFO L485 AbstractCegarLoop]: Abstraction has has 190 places, 244 transitions, 1326 flow [2025-04-29 11:08:42,584 INFO L486 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) [2025-04-29 11:08:42,584 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:42,584 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:08:42,584 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-04-29 11:08:42,584 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:08:42,585 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:42,585 INFO L85 PathProgramCache]: Analyzing trace with hash 824692371, now seen corresponding path program 1 times [2025-04-29 11:08:42,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:42,585 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532643683] [2025-04-29 11:08:42,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:42,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:42,595 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-04-29 11:08:42,604 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-04-29 11:08:42,605 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:42,605 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:42,906 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2025-04-29 11:08:42,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:42,906 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532643683] [2025-04-29 11:08:42,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532643683] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:42,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:42,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:08:42,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986661466] [2025-04-29 11:08:42,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:42,907 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:08:42,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:42,907 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:08:42,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:08:43,123 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 120 [2025-04-29 11:08:43,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 244 transitions, 1326 flow. Second operand has 6 states, 6 states have (on average 89.83333333333333) internal successors, (539), 6 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:08:43,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:43,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 120 [2025-04-29 11:08:43,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:43,416 INFO L116 PetriNetUnfolderBase]: 594/1838 cut-off events. [2025-04-29 11:08:43,416 INFO L117 PetriNetUnfolderBase]: For 2434/2479 co-relation queries the response was YES. [2025-04-29 11:08:43,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5644 conditions, 1838 events. 594/1838 cut-off events. For 2434/2479 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 12347 event pairs, 150 based on Foata normal form. 25/1831 useless extension candidates. Maximal degree in co-relation 5424. Up to 891 conditions per place. [2025-04-29 11:08:43,424 INFO L140 encePairwiseOnDemand]: 103/120 looper letters, 122 selfloop transitions, 58 changer transitions 39/336 dead transitions. [2025-04-29 11:08:43,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 336 transitions, 2288 flow [2025-04-29 11:08:43,425 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:08:43,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:08:43,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 624 transitions. [2025-04-29 11:08:43,426 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8666666666666667 [2025-04-29 11:08:43,427 INFO L175 Difference]: Start difference. First operand has 190 places, 244 transitions, 1326 flow. Second operand 6 states and 624 transitions. [2025-04-29 11:08:43,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 336 transitions, 2288 flow [2025-04-29 11:08:43,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 336 transitions, 2278 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-04-29 11:08:43,438 INFO L231 Difference]: Finished difference. Result has 194 places, 271 transitions, 1724 flow [2025-04-29 11:08:43,439 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=1316, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1724, PETRI_PLACES=194, PETRI_TRANSITIONS=271} [2025-04-29 11:08:43,439 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, 72 predicate places. [2025-04-29 11:08:43,439 INFO L485 AbstractCegarLoop]: Abstraction has has 194 places, 271 transitions, 1724 flow [2025-04-29 11:08:43,440 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 89.83333333333333) internal successors, (539), 6 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:08:43,440 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:43,440 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:08:43,440 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-04-29 11:08:43,440 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-29 11:08:43,441 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:43,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1933750555, now seen corresponding path program 1 times [2025-04-29 11:08:43,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:43,442 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486251712] [2025-04-29 11:08:43,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:43,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:43,453 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-04-29 11:08:43,458 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-04-29 11:08:43,459 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:43,459 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:43,523 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2025-04-29 11:08:43,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:43,523 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486251712] [2025-04-29 11:08:43,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486251712] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:43,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:43,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-29 11:08:43,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233851378] [2025-04-29 11:08:43,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:43,524 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:08:43,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:43,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:08:43,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:08:43,537 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 120 [2025-04-29 11:08:43,537 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 271 transitions, 1724 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) [2025-04-29 11:08:43,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:43,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 120 [2025-04-29 11:08:43,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:43,566 INFO L116 PetriNetUnfolderBase]: 6/237 cut-off events. [2025-04-29 11:08:43,566 INFO L117 PetriNetUnfolderBase]: For 253/253 co-relation queries the response was YES. [2025-04-29 11:08:43,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 596 conditions, 237 events. 6/237 cut-off events. For 253/253 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 265 event pairs, 1 based on Foata normal form. 2/239 useless extension candidates. Maximal degree in co-relation 412. Up to 23 conditions per place. [2025-04-29 11:08:43,567 INFO L140 encePairwiseOnDemand]: 116/120 looper letters, 0 selfloop transitions, 0 changer transitions 145/145 dead transitions. [2025-04-29 11:08:43,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 145 transitions, 658 flow [2025-04-29 11:08:43,567 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:08:43,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:08:43,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 346 transitions. [2025-04-29 11:08:43,568 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9611111111111111 [2025-04-29 11:08:43,568 INFO L175 Difference]: Start difference. First operand has 194 places, 271 transitions, 1724 flow. Second operand 3 states and 346 transitions. [2025-04-29 11:08:43,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 145 transitions, 658 flow [2025-04-29 11:08:43,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 145 transitions, 520 flow, removed 30 selfloop flow, removed 29 redundant places. [2025-04-29 11:08:43,571 INFO L231 Difference]: Finished difference. Result has 163 places, 0 transitions, 0 flow [2025-04-29 11:08:43,571 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=163, PETRI_TRANSITIONS=0} [2025-04-29 11:08:43,572 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, 41 predicate places. [2025-04-29 11:08:43,572 INFO L485 AbstractCegarLoop]: Abstraction has has 163 places, 0 transitions, 0 flow [2025-04-29 11:08:43,572 INFO L486 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) [2025-04-29 11:08:43,574 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2025-04-29 11:08:43,574 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2025-04-29 11:08:43,574 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2025-04-29 11:08:43,574 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2025-04-29 11:08:43,574 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2025-04-29 11:08:43,574 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2025-04-29 11:08:43,574 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2025-04-29 11:08:43,574 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2025-04-29 11:08:43,574 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2025-04-29 11:08:43,575 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-04-29 11:08:43,575 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1] [2025-04-29 11:08:43,578 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-29 11:08:43,578 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-29 11:08:43,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 11:08:43 BasicIcfg [2025-04-29 11:08:43,582 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-29 11:08:43,583 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-29 11:08:43,583 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-29 11:08:43,583 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-29 11:08:43,584 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:08:36" (3/4) ... [2025-04-29 11:08:43,585 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-29 11:08:43,587 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-04-29 11:08:43,589 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-04-29 11:08:43,590 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-04-29 11:08:43,590 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-04-29 11:08:43,646 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-29 11:08:43,647 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-29 11:08:43,647 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-29 11:08:43,648 INFO L158 Benchmark]: Toolchain (without parser) took 8135.62ms. Allocated memory was 167.8MB in the beginning and 385.9MB in the end (delta: 218.1MB). Free memory was 122.7MB in the beginning and 234.9MB in the end (delta: -112.2MB). Peak memory consumption was 101.9MB. Max. memory is 16.1GB. [2025-04-29 11:08:43,648 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:08:43,648 INFO L158 Benchmark]: CACSL2BoogieTranslator took 253.29ms. Allocated memory is still 167.8MB. Free memory was 122.7MB in the beginning and 108.7MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-29 11:08:43,649 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.44ms. Allocated memory is still 167.8MB. Free memory was 108.7MB in the beginning and 106.4MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:08:43,649 INFO L158 Benchmark]: Boogie Preprocessor took 25.38ms. Allocated memory is still 167.8MB. Free memory was 106.4MB in the beginning and 104.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:08:43,649 INFO L158 Benchmark]: RCFGBuilder took 385.51ms. Allocated memory is still 167.8MB. Free memory was 104.9MB in the beginning and 86.1MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-29 11:08:43,650 INFO L158 Benchmark]: TraceAbstraction took 7362.53ms. Allocated memory was 167.8MB in the beginning and 385.9MB in the end (delta: 218.1MB). Free memory was 85.3MB in the beginning and 239.1MB in the end (delta: -153.8MB). Peak memory consumption was 68.3MB. Max. memory is 16.1GB. [2025-04-29 11:08:43,650 INFO L158 Benchmark]: Witness Printer took 63.82ms. Allocated memory is still 385.9MB. Free memory was 239.1MB in the beginning and 234.9MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:08:43,651 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 253.29ms. Allocated memory is still 167.8MB. Free memory was 122.7MB in the beginning and 108.7MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.44ms. Allocated memory is still 167.8MB. Free memory was 108.7MB in the beginning and 106.4MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.38ms. Allocated memory is still 167.8MB. Free memory was 106.4MB in the beginning and 104.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 385.51ms. Allocated memory is still 167.8MB. Free memory was 104.9MB in the beginning and 86.1MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7362.53ms. Allocated memory was 167.8MB in the beginning and 385.9MB in the end (delta: 218.1MB). Free memory was 85.3MB in the beginning and 239.1MB in the end (delta: -153.8MB). Peak memory consumption was 68.3MB. Max. memory is 16.1GB. * Witness Printer took 63.82ms. Allocated memory is still 385.9MB. Free memory was 239.1MB in the beginning and 234.9MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 28]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 28]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 31]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 31]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 16]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 16]: 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, 148 locations, 147 edges, 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: 7.2s, OverallIterations: 10, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1047 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 684 mSDsluCounter, 102 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 85 mSDsCounter, 354 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2362 IncrementalHoareTripleChecker+Invalid, 2716 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 354 mSolverCounterUnsat, 17 mSDtfsCounter, 2362 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 493 GetRequests, 381 SyntacticMatches, 11 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1724occurred in iteration=9, InterpolantAutomatonStates: 96, 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, 2.6s InterpolantComputationTime, 1046 NumberOfCodeBlocks, 946 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1229 ConstructedInterpolants, 0 QuantifiedInterpolants, 2032 SizeOfPredicates, 22 NumberOfNonLiveVariables, 481 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 16 InterpolantComputations, 7 PerfectInterpolantSequences, 1073/1466 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-29 11:08:43,666 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