./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_11-equ_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_11-equ_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 7a871ced968faf41a0f8af6a159878b93bdcf732e313f0b046f138879ce945fc --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 11:08:31,193 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 11:08:31,229 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-04-29 11:08:31,232 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 11:08:31,233 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 11:08:31,251 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 11:08:31,252 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 11:08:31,252 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 11:08:31,252 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 11:08:31,252 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 11:08:31,253 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 11:08:31,253 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 11:08:31,253 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 11:08:31,254 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 11:08:31,254 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-29 11:08:31,254 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 11:08:31,254 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-29 11:08:31,254 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 11:08:31,254 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 11:08:31,254 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-29 11:08:31,254 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 11:08:31,254 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-29 11:08:31,254 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-29 11:08:31,255 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-29 11:08:31,255 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 11:08:31,255 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-29 11:08:31,255 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 11:08:31,255 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 11:08:31,255 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 11:08:31,255 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:08:31,255 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:08:31,255 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:08:31,255 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 11:08:31,256 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:08:31,256 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:08:31,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:08:31,256 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 11:08:31,256 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 11:08:31,256 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-29 11:08:31,256 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-29 11:08:31,256 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-29 11:08:31,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-29 11:08:31,256 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 11:08:31,256 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 11:08:31,256 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 11:08:31,256 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 -> 7a871ced968faf41a0f8af6a159878b93bdcf732e313f0b046f138879ce945fc [2025-04-29 11:08:31,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 11:08:31,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 11:08:31,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 11:08:31,509 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 11:08:31,510 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 11:08:31,513 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_11-equ_nr.c [2025-04-29 11:08:32,895 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f2e6272d/5426afb352854ed7a8073051edeea1f1/FLAG9667bdcc2 [2025-04-29 11:08:33,083 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 11:08:33,084 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_11-equ_nr.c [2025-04-29 11:08:33,085 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:08:33,086 WARN L117 ultiparseSymbolTable]: System include stdlib.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:08:33,086 WARN L117 ultiparseSymbolTable]: System include limits.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:08:33,093 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f2e6272d/5426afb352854ed7a8073051edeea1f1/FLAG9667bdcc2 [2025-04-29 11:08:34,947 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f2e6272d/5426afb352854ed7a8073051edeea1f1 [2025-04-29 11:08:34,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 11:08:34,950 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 11:08:34,951 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 11:08:34,951 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 11:08:34,955 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 11:08:34,956 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:08:34" (1/1) ... [2025-04-29 11:08:34,956 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@730abab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:34, skipping insertion in model container [2025-04-29 11:08:34,957 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:08:34" (1/1) ... [2025-04-29 11:08:34,967 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 11:08:35,135 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:08:35,145 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 11:08:35,166 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:08:35,180 INFO L204 MainTranslator]: Completed translation [2025-04-29 11:08:35,181 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:35 WrapperNode [2025-04-29 11:08:35,181 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 11:08:35,182 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 11:08:35,182 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 11:08:35,182 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 11:08:35,186 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 11:08:35,192 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 11:08:35,209 INFO L138 Inliner]: procedures = 12, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 62 [2025-04-29 11:08:35,211 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 11:08:35,211 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 11:08:35,211 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 11:08:35,211 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 11:08:35,217 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 11:08:35,217 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 11:08:35,222 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 11:08:35,223 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 11:08:35,231 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 11:08:35,232 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 11:08:35,235 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 11:08:35,236 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 11:08:35,237 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 11:08:35,239 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 11:08:35,243 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 11:08:35,243 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 11:08:35,243 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 11:08:35,244 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 11:08:35,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:08:35,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:08:35,274 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 11:08:35,281 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 11:08:35,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-04-29 11:08:35,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-29 11:08:35,303 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-29 11:08:35,303 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-29 11:08:35,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 11:08:35,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 11:08:35,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-29 11:08:35,303 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-29 11:08:35,303 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-29 11:08:35,305 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 11:08:35,374 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 11:08:35,375 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 11:08:35,563 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-29 11:08:35,564 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 11:08:35,588 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 11:08:35,591 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-29 11:08:35,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:08:35 BoogieIcfgContainer [2025-04-29 11:08:35,592 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 11:08:35,593 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 11:08:35,594 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 11:08:35,597 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 11:08:35,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 11:08:34" (1/3) ... [2025-04-29 11:08:35,598 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@383b7b9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:08:35, skipping insertion in model container [2025-04-29 11:08:35,598 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 11:08:35,599 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@383b7b9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:08:35, skipping insertion in model container [2025-04-29 11:08:35,599 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:08:35" (3/3) ... [2025-04-29 11:08:35,600 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_11-equ_nr.c [2025-04-29 11:08:35,611 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 11:08:35,613 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_11-equ_nr.c that has 2 procedures, 80 locations, 80 edges, 1 initial locations, 0 loop locations, and 2 error locations. [2025-04-29 11:08:35,614 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-29 11:08:35,667 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-29 11:08:35,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 81 transitions, 166 flow [2025-04-29 11:08:35,730 INFO L116 PetriNetUnfolderBase]: 1/83 cut-off events. [2025-04-29 11:08:35,733 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:08:35,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 83 events. 1/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 53 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2025-04-29 11:08:35,735 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 81 transitions, 166 flow [2025-04-29 11:08:35,742 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 78 transitions, 159 flow [2025-04-29 11:08:35,751 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 11:08:35,759 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;@1067f0ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 11:08:35,760 INFO L341 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-04-29 11:08:35,776 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-29 11:08:35,777 INFO L116 PetriNetUnfolderBase]: 1/61 cut-off events. [2025-04-29 11:08:35,777 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:08:35,777 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:35,777 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] [2025-04-29 11:08:35,778 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-04-29 11:08:35,781 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:35,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1074437082, now seen corresponding path program 1 times [2025-04-29 11:08:35,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:35,787 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438717244] [2025-04-29 11:08:35,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:35,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:35,848 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-04-29 11:08:35,881 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-04-29 11:08:35,882 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:35,883 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:36,448 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 11:08:36,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:36,449 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438717244] [2025-04-29 11:08:36,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438717244] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:36,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:36,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:08:36,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640139891] [2025-04-29 11:08:36,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:36,460 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:08:36,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:36,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:08:36,480 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:08:36,583 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 81 [2025-04-29 11:08:36,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 78 transitions, 159 flow. Second operand has 6 states, 6 states have (on average 64.5) internal successors, (387), 6 states have internal predecessors, (387), 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 11:08:36,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:36,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 81 [2025-04-29 11:08:36,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:36,721 INFO L116 PetriNetUnfolderBase]: 79/325 cut-off events. [2025-04-29 11:08:36,722 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-29 11:08:36,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 509 conditions, 325 events. 79/325 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1421 event pairs, 25 based on Foata normal form. 0/305 useless extension candidates. Maximal degree in co-relation 459. Up to 130 conditions per place. [2025-04-29 11:08:36,725 INFO L140 encePairwiseOnDemand]: 70/81 looper letters, 21 selfloop transitions, 22 changer transitions 4/107 dead transitions. [2025-04-29 11:08:36,725 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 107 transitions, 311 flow [2025-04-29 11:08:36,726 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:08:36,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:08:36,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 426 transitions. [2025-04-29 11:08:36,737 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8765432098765432 [2025-04-29 11:08:36,739 INFO L175 Difference]: Start difference. First operand has 81 places, 78 transitions, 159 flow. Second operand 6 states and 426 transitions. [2025-04-29 11:08:36,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 107 transitions, 311 flow [2025-04-29 11:08:36,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 107 transitions, 310 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-29 11:08:36,748 INFO L231 Difference]: Finished difference. Result has 90 places, 99 transitions, 308 flow [2025-04-29 11:08:36,750 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=308, PETRI_PLACES=90, PETRI_TRANSITIONS=99} [2025-04-29 11:08:36,753 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, 9 predicate places. [2025-04-29 11:08:36,754 INFO L485 AbstractCegarLoop]: Abstraction has has 90 places, 99 transitions, 308 flow [2025-04-29 11:08:36,755 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.5) internal successors, (387), 6 states have internal predecessors, (387), 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 11:08:36,755 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:36,755 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] [2025-04-29 11:08:36,756 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-29 11:08:36,756 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-04-29 11:08:36,757 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:36,757 INFO L85 PathProgramCache]: Analyzing trace with hash 362384713, now seen corresponding path program 1 times [2025-04-29 11:08:36,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:36,757 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906827658] [2025-04-29 11:08:36,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:36,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:36,773 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-04-29 11:08:36,800 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-04-29 11:08:36,801 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:36,801 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:37,040 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 11:08:37,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:37,040 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906827658] [2025-04-29 11:08:37,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906827658] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:37,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:37,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:08:37,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814263003] [2025-04-29 11:08:37,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:37,041 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:08:37,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:37,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:08:37,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:08:37,096 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 81 [2025-04-29 11:08:37,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 99 transitions, 308 flow. Second operand has 6 states, 6 states have (on average 61.833333333333336) internal successors, (371), 6 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:08:37,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:37,097 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 81 [2025-04-29 11:08:37,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:37,261 INFO L116 PetriNetUnfolderBase]: 132/458 cut-off events. [2025-04-29 11:08:37,261 INFO L117 PetriNetUnfolderBase]: For 136/144 co-relation queries the response was YES. [2025-04-29 11:08:37,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1051 conditions, 458 events. 132/458 cut-off events. For 136/144 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2206 event pairs, 31 based on Foata normal form. 0/444 useless extension candidates. Maximal degree in co-relation 995. Up to 218 conditions per place. [2025-04-29 11:08:37,267 INFO L140 encePairwiseOnDemand]: 70/81 looper letters, 39 selfloop transitions, 29 changer transitions 7/134 dead transitions. [2025-04-29 11:08:37,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 134 transitions, 598 flow [2025-04-29 11:08:37,268 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:08:37,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:08:37,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 411 transitions. [2025-04-29 11:08:37,271 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.845679012345679 [2025-04-29 11:08:37,272 INFO L175 Difference]: Start difference. First operand has 90 places, 99 transitions, 308 flow. Second operand 6 states and 411 transitions. [2025-04-29 11:08:37,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 134 transitions, 598 flow [2025-04-29 11:08:37,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 134 transitions, 598 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-29 11:08:37,277 INFO L231 Difference]: Finished difference. Result has 100 places, 123 transitions, 562 flow [2025-04-29 11:08:37,278 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=562, PETRI_PLACES=100, PETRI_TRANSITIONS=123} [2025-04-29 11:08:37,278 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, 19 predicate places. [2025-04-29 11:08:37,278 INFO L485 AbstractCegarLoop]: Abstraction has has 100 places, 123 transitions, 562 flow [2025-04-29 11:08:37,279 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 61.833333333333336) internal successors, (371), 6 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:08:37,279 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:37,279 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:08:37,279 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-29 11:08:37,279 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-04-29 11:08:37,280 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:37,280 INFO L85 PathProgramCache]: Analyzing trace with hash -72238849, now seen corresponding path program 1 times [2025-04-29 11:08:37,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:37,280 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765753861] [2025-04-29 11:08:37,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:37,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:37,290 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-04-29 11:08:37,306 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-04-29 11:08:37,307 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:37,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:37,521 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 11:08:37,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:37,521 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765753861] [2025-04-29 11:08:37,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765753861] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:37,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:37,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-04-29 11:08:37,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200524589] [2025-04-29 11:08:37,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:37,522 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-29 11:08:37,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:37,522 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-29 11:08:37,522 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2025-04-29 11:08:37,605 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 81 [2025-04-29 11:08:37,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 123 transitions, 562 flow. Second operand has 7 states, 7 states have (on average 67.71428571428571) internal successors, (474), 7 states have internal predecessors, (474), 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 11:08:37,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:37,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 81 [2025-04-29 11:08:37,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:37,701 INFO L116 PetriNetUnfolderBase]: 88/432 cut-off events. [2025-04-29 11:08:37,702 INFO L117 PetriNetUnfolderBase]: For 187/192 co-relation queries the response was YES. [2025-04-29 11:08:37,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1061 conditions, 432 events. 88/432 cut-off events. For 187/192 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2214 event pairs, 5 based on Foata normal form. 2/431 useless extension candidates. Maximal degree in co-relation 847. Up to 86 conditions per place. [2025-04-29 11:08:37,704 INFO L140 encePairwiseOnDemand]: 73/81 looper letters, 11 selfloop transitions, 4 changer transitions 16/135 dead transitions. [2025-04-29 11:08:37,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 135 transitions, 642 flow [2025-04-29 11:08:37,705 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-29 11:08:37,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-04-29 11:08:37,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 491 transitions. [2025-04-29 11:08:37,706 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8659611992945326 [2025-04-29 11:08:37,706 INFO L175 Difference]: Start difference. First operand has 100 places, 123 transitions, 562 flow. Second operand 7 states and 491 transitions. [2025-04-29 11:08:37,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 135 transitions, 642 flow [2025-04-29 11:08:37,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 135 transitions, 624 flow, removed 9 selfloop flow, removed 0 redundant places. [2025-04-29 11:08:37,712 INFO L231 Difference]: Finished difference. Result has 109 places, 118 transitions, 552 flow [2025-04-29 11:08:37,712 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=552, PETRI_PLACES=109, PETRI_TRANSITIONS=118} [2025-04-29 11:08:37,713 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, 28 predicate places. [2025-04-29 11:08:37,713 INFO L485 AbstractCegarLoop]: Abstraction has has 109 places, 118 transitions, 552 flow [2025-04-29 11:08:37,713 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 67.71428571428571) internal successors, (474), 7 states have internal predecessors, (474), 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 11:08:37,713 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:37,713 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:08:37,713 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-29 11:08:37,714 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-04-29 11:08:37,714 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:37,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1120728661, now seen corresponding path program 1 times [2025-04-29 11:08:37,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:37,714 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876743428] [2025-04-29 11:08:37,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:37,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:37,722 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-04-29 11:08:37,727 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-04-29 11:08:37,727 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:37,727 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:38,059 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 11:08:38,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:38,060 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876743428] [2025-04-29 11:08:38,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876743428] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:38,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:38,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-04-29 11:08:38,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785452412] [2025-04-29 11:08:38,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:38,060 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-04-29 11:08:38,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:38,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-04-29 11:08:38,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2025-04-29 11:08:38,381 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 81 [2025-04-29 11:08:38,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 118 transitions, 552 flow. Second operand has 11 states, 11 states have (on average 56.54545454545455) internal successors, (622), 11 states have internal predecessors, (622), 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 11:08:38,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:38,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 81 [2025-04-29 11:08:38,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:38,707 INFO L116 PetriNetUnfolderBase]: 129/437 cut-off events. [2025-04-29 11:08:38,707 INFO L117 PetriNetUnfolderBase]: For 434/434 co-relation queries the response was YES. [2025-04-29 11:08:38,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1377 conditions, 437 events. 129/437 cut-off events. For 434/434 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2110 event pairs, 22 based on Foata normal form. 11/444 useless extension candidates. Maximal degree in co-relation 1320. Up to 89 conditions per place. [2025-04-29 11:08:38,710 INFO L140 encePairwiseOnDemand]: 69/81 looper letters, 62 selfloop transitions, 32 changer transitions 23/167 dead transitions. [2025-04-29 11:08:38,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 167 transitions, 1094 flow [2025-04-29 11:08:38,711 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-04-29 11:08:38,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-04-29 11:08:38,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 668 transitions. [2025-04-29 11:08:38,712 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7497194163860831 [2025-04-29 11:08:38,712 INFO L175 Difference]: Start difference. First operand has 109 places, 118 transitions, 552 flow. Second operand 11 states and 668 transitions. [2025-04-29 11:08:38,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 167 transitions, 1094 flow [2025-04-29 11:08:38,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 167 transitions, 1043 flow, removed 21 selfloop flow, removed 5 redundant places. [2025-04-29 11:08:38,719 INFO L231 Difference]: Finished difference. Result has 113 places, 119 transitions, 648 flow [2025-04-29 11:08:38,719 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=537, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=648, PETRI_PLACES=113, PETRI_TRANSITIONS=119} [2025-04-29 11:08:38,719 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, 32 predicate places. [2025-04-29 11:08:38,720 INFO L485 AbstractCegarLoop]: Abstraction has has 113 places, 119 transitions, 648 flow [2025-04-29 11:08:38,720 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 56.54545454545455) internal successors, (622), 11 states have internal predecessors, (622), 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 11:08:38,720 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:38,720 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:08:38,720 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-29 11:08:38,720 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-04-29 11:08:38,721 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:38,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1770379150, now seen corresponding path program 1 times [2025-04-29 11:08:38,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:38,721 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441378109] [2025-04-29 11:08:38,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:38,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:38,734 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-04-29 11:08:38,744 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-04-29 11:08:38,744 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:38,744 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:39,089 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 11:08:39,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:39,089 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441378109] [2025-04-29 11:08:39,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441378109] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:39,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:39,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-04-29 11:08:39,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795273549] [2025-04-29 11:08:39,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:39,090 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-04-29 11:08:39,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:39,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-04-29 11:08:39,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2025-04-29 11:08:39,383 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 81 [2025-04-29 11:08:39,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 119 transitions, 648 flow. Second operand has 11 states, 11 states have (on average 56.54545454545455) internal successors, (622), 11 states have internal predecessors, (622), 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 11:08:39,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:39,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 81 [2025-04-29 11:08:39,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:39,604 INFO L116 PetriNetUnfolderBase]: 105/377 cut-off events. [2025-04-29 11:08:39,605 INFO L117 PetriNetUnfolderBase]: For 631/649 co-relation queries the response was YES. [2025-04-29 11:08:39,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1323 conditions, 377 events. 105/377 cut-off events. For 631/649 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1693 event pairs, 20 based on Foata normal form. 16/390 useless extension candidates. Maximal degree in co-relation 1300. Up to 82 conditions per place. [2025-04-29 11:08:39,607 INFO L140 encePairwiseOnDemand]: 70/81 looper letters, 45 selfloop transitions, 28 changer transitions 33/149 dead transitions. [2025-04-29 11:08:39,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 149 transitions, 1120 flow [2025-04-29 11:08:39,607 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-29 11:08:39,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-04-29 11:08:39,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 602 transitions. [2025-04-29 11:08:39,609 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7432098765432099 [2025-04-29 11:08:39,609 INFO L175 Difference]: Start difference. First operand has 113 places, 119 transitions, 648 flow. Second operand 10 states and 602 transitions. [2025-04-29 11:08:39,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 149 transitions, 1120 flow [2025-04-29 11:08:39,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 149 transitions, 1070 flow, removed 8 selfloop flow, removed 7 redundant places. [2025-04-29 11:08:39,615 INFO L231 Difference]: Finished difference. Result has 113 places, 100 transitions, 535 flow [2025-04-29 11:08:39,615 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=535, PETRI_PLACES=113, PETRI_TRANSITIONS=100} [2025-04-29 11:08:39,616 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, 32 predicate places. [2025-04-29 11:08:39,616 INFO L485 AbstractCegarLoop]: Abstraction has has 113 places, 100 transitions, 535 flow [2025-04-29 11:08:39,616 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 56.54545454545455) internal successors, (622), 11 states have internal predecessors, (622), 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 11:08:39,617 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:39,617 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:08:39,617 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-29 11:08:39,617 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-04-29 11:08:39,618 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:39,618 INFO L85 PathProgramCache]: Analyzing trace with hash -2135256879, now seen corresponding path program 1 times [2025-04-29 11:08:39,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:39,618 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126839570] [2025-04-29 11:08:39,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:39,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:39,632 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-04-29 11:08:39,639 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-04-29 11:08:39,639 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:39,641 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:39,964 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 11:08:39,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:39,964 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126839570] [2025-04-29 11:08:39,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126839570] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:39,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:39,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-04-29 11:08:39,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692786890] [2025-04-29 11:08:39,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:39,965 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-04-29 11:08:39,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:39,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-04-29 11:08:39,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2025-04-29 11:08:40,233 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 81 [2025-04-29 11:08:40,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 100 transitions, 535 flow. Second operand has 11 states, 11 states have (on average 57.09090909090909) internal successors, (628), 11 states have internal predecessors, (628), 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 11:08:40,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:40,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 81 [2025-04-29 11:08:40,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:40,422 INFO L116 PetriNetUnfolderBase]: 49/210 cut-off events. [2025-04-29 11:08:40,422 INFO L117 PetriNetUnfolderBase]: For 429/438 co-relation queries the response was YES. [2025-04-29 11:08:40,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 755 conditions, 210 events. 49/210 cut-off events. For 429/438 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 657 event pairs, 11 based on Foata normal form. 10/217 useless extension candidates. Maximal degree in co-relation 737. Up to 40 conditions per place. [2025-04-29 11:08:40,425 INFO L140 encePairwiseOnDemand]: 71/81 looper letters, 37 selfloop transitions, 17 changer transitions 21/121 dead transitions. [2025-04-29 11:08:40,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 121 transitions, 820 flow [2025-04-29 11:08:40,425 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-04-29 11:08:40,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-04-29 11:08:40,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 651 transitions. [2025-04-29 11:08:40,426 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7306397306397306 [2025-04-29 11:08:40,427 INFO L175 Difference]: Start difference. First operand has 113 places, 100 transitions, 535 flow. Second operand 11 states and 651 transitions. [2025-04-29 11:08:40,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 121 transitions, 820 flow [2025-04-29 11:08:40,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 121 transitions, 705 flow, removed 5 selfloop flow, removed 12 redundant places. [2025-04-29 11:08:40,434 INFO L231 Difference]: Finished difference. Result has 106 places, 90 transitions, 408 flow [2025-04-29 11:08:40,434 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=408, PETRI_PLACES=106, PETRI_TRANSITIONS=90} [2025-04-29 11:08:40,435 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, 25 predicate places. [2025-04-29 11:08:40,435 INFO L485 AbstractCegarLoop]: Abstraction has has 106 places, 90 transitions, 408 flow [2025-04-29 11:08:40,435 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 57.09090909090909) internal successors, (628), 11 states have internal predecessors, (628), 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 11:08:40,436 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:40,436 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:08:40,436 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-29 11:08:40,436 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-04-29 11:08:40,436 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:40,436 INFO L85 PathProgramCache]: Analyzing trace with hash -929510127, now seen corresponding path program 2 times [2025-04-29 11:08:40,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:40,437 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110830787] [2025-04-29 11:08:40,437 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-29 11:08:40,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:40,449 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 65 statements into 1 equivalence classes. [2025-04-29 11:08:40,456 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-04-29 11:08:40,457 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-29 11:08:40,457 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:40,739 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 11:08:40,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:40,739 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110830787] [2025-04-29 11:08:40,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110830787] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:40,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:40,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-04-29 11:08:40,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683081023] [2025-04-29 11:08:40,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:40,739 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-04-29 11:08:40,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:40,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-04-29 11:08:40,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2025-04-29 11:08:41,027 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 81 [2025-04-29 11:08:41,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 90 transitions, 408 flow. Second operand has 11 states, 11 states have (on average 57.09090909090909) internal successors, (628), 11 states have internal predecessors, (628), 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 11:08:41,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:41,029 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 81 [2025-04-29 11:08:41,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:41,225 INFO L116 PetriNetUnfolderBase]: 36/181 cut-off events. [2025-04-29 11:08:41,225 INFO L117 PetriNetUnfolderBase]: For 326/331 co-relation queries the response was YES. [2025-04-29 11:08:41,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 595 conditions, 181 events. 36/181 cut-off events. For 326/331 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 500 event pairs, 11 based on Foata normal form. 6/184 useless extension candidates. Maximal degree in co-relation 577. Up to 36 conditions per place. [2025-04-29 11:08:41,228 INFO L140 encePairwiseOnDemand]: 71/81 looper letters, 25 selfloop transitions, 9 changer transitions 29/108 dead transitions. [2025-04-29 11:08:41,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 108 transitions, 629 flow [2025-04-29 11:08:41,228 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-29 11:08:41,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-04-29 11:08:41,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 704 transitions. [2025-04-29 11:08:41,230 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7242798353909465 [2025-04-29 11:08:41,230 INFO L175 Difference]: Start difference. First operand has 106 places, 90 transitions, 408 flow. Second operand 12 states and 704 transitions. [2025-04-29 11:08:41,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 108 transitions, 629 flow [2025-04-29 11:08:41,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 108 transitions, 586 flow, removed 5 selfloop flow, removed 10 redundant places. [2025-04-29 11:08:41,233 INFO L231 Difference]: Finished difference. Result has 107 places, 76 transitions, 284 flow [2025-04-29 11:08:41,233 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=369, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=284, PETRI_PLACES=107, PETRI_TRANSITIONS=76} [2025-04-29 11:08:41,234 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, 26 predicate places. [2025-04-29 11:08:41,234 INFO L485 AbstractCegarLoop]: Abstraction has has 107 places, 76 transitions, 284 flow [2025-04-29 11:08:41,235 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 57.09090909090909) internal successors, (628), 11 states have internal predecessors, (628), 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 11:08:41,235 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:41,235 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:08:41,235 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-04-29 11:08:41,235 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-04-29 11:08:41,235 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:41,235 INFO L85 PathProgramCache]: Analyzing trace with hash -28811021, now seen corresponding path program 3 times [2025-04-29 11:08:41,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:41,235 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814890579] [2025-04-29 11:08:41,236 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-29 11:08:41,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:41,245 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 65 statements into 1 equivalence classes. [2025-04-29 11:08:41,250 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-04-29 11:08:41,250 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-29 11:08:41,250 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:41,499 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 11:08:41,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:41,500 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814890579] [2025-04-29 11:08:41,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814890579] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:41,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:41,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-04-29 11:08:41,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530444470] [2025-04-29 11:08:41,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:41,500 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-04-29 11:08:41,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:41,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-04-29 11:08:41,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2025-04-29 11:08:41,728 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 81 [2025-04-29 11:08:41,728 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 76 transitions, 284 flow. Second operand has 11 states, 11 states have (on average 57.09090909090909) internal successors, (628), 11 states have internal predecessors, (628), 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 11:08:41,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:41,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 81 [2025-04-29 11:08:41,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:41,871 INFO L116 PetriNetUnfolderBase]: 16/124 cut-off events. [2025-04-29 11:08:41,871 INFO L117 PetriNetUnfolderBase]: For 142/143 co-relation queries the response was YES. [2025-04-29 11:08:41,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322 conditions, 124 events. 16/124 cut-off events. For 142/143 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 248 event pairs, 11 based on Foata normal form. 2/123 useless extension candidates. Maximal degree in co-relation 304. Up to 32 conditions per place. [2025-04-29 11:08:41,872 INFO L140 encePairwiseOnDemand]: 71/81 looper letters, 0 selfloop transitions, 0 changer transitions 80/80 dead transitions. [2025-04-29 11:08:41,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 80 transitions, 373 flow [2025-04-29 11:08:41,872 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-04-29 11:08:41,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-04-29 11:08:41,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 633 transitions. [2025-04-29 11:08:41,873 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7104377104377104 [2025-04-29 11:08:41,873 INFO L175 Difference]: Start difference. First operand has 107 places, 76 transitions, 284 flow. Second operand 11 states and 633 transitions. [2025-04-29 11:08:41,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 80 transitions, 373 flow [2025-04-29 11:08:41,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 80 transitions, 328 flow, removed 7 selfloop flow, removed 14 redundant places. [2025-04-29 11:08:41,876 INFO L231 Difference]: Finished difference. Result has 93 places, 0 transitions, 0 flow [2025-04-29 11:08:41,876 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=93, PETRI_TRANSITIONS=0} [2025-04-29 11:08:41,876 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, 12 predicate places. [2025-04-29 11:08:41,876 INFO L485 AbstractCegarLoop]: Abstraction has has 93 places, 0 transitions, 0 flow [2025-04-29 11:08:41,877 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 57.09090909090909) internal successors, (628), 11 states have internal predecessors, (628), 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 11:08:41,880 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2025-04-29 11:08:41,881 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-04-29 11:08:41,881 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2025-04-29 11:08:41,881 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2025-04-29 11:08:41,881 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-04-29 11:08:41,881 INFO L422 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1] [2025-04-29 11:08:41,887 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-29 11:08:41,887 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-29 11:08:41,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 11:08:41 BasicIcfg [2025-04-29 11:08:41,893 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-29 11:08:41,894 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-29 11:08:41,894 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-29 11:08:41,894 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-29 11:08:41,895 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:08:35" (3/4) ... [2025-04-29 11:08:41,896 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-29 11:08:41,898 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-04-29 11:08:41,900 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-04-29 11:08:41,900 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-04-29 11:08:41,900 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-04-29 11:08:41,954 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-29 11:08:41,954 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-29 11:08:41,954 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-29 11:08:41,955 INFO L158 Benchmark]: Toolchain (without parser) took 7004.95ms. Allocated memory was 167.8MB in the beginning and 360.7MB in the end (delta: 192.9MB). Free memory was 123.0MB in the beginning and 303.8MB in the end (delta: -180.8MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2025-04-29 11:08:41,956 INFO L158 Benchmark]: CDTParser took 1.04ms. Allocated memory is still 201.3MB. Free memory is still 115.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:08:41,956 INFO L158 Benchmark]: CACSL2BoogieTranslator took 230.66ms. Allocated memory is still 167.8MB. Free memory was 123.0MB in the beginning and 108.3MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-29 11:08:41,957 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.70ms. Allocated memory is still 167.8MB. Free memory was 108.3MB in the beginning and 106.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:08:41,957 INFO L158 Benchmark]: Boogie Preprocessor took 31.28ms. Allocated memory is still 167.8MB. Free memory was 106.8MB in the beginning and 105.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:08:41,957 INFO L158 Benchmark]: RCFGBuilder took 348.79ms. Allocated memory is still 167.8MB. Free memory was 105.3MB in the beginning and 90.8MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-29 11:08:41,958 INFO L158 Benchmark]: TraceAbstraction took 6300.43ms. Allocated memory was 167.8MB in the beginning and 360.7MB in the end (delta: 192.9MB). Free memory was 90.1MB in the beginning and 308.1MB in the end (delta: -218.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:08:41,958 INFO L158 Benchmark]: Witness Printer took 60.41ms. Allocated memory is still 360.7MB. Free memory was 308.1MB in the beginning and 303.8MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:08:41,959 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.04ms. Allocated memory is still 201.3MB. Free memory is still 115.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 230.66ms. Allocated memory is still 167.8MB. Free memory was 123.0MB in the beginning and 108.3MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.70ms. Allocated memory is still 167.8MB. Free memory was 108.3MB in the beginning and 106.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.28ms. Allocated memory is still 167.8MB. Free memory was 106.8MB in the beginning and 105.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 348.79ms. Allocated memory is still 167.8MB. Free memory was 105.3MB in the beginning and 90.8MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6300.43ms. Allocated memory was 167.8MB in the beginning and 360.7MB in the end (delta: 192.9MB). Free memory was 90.1MB in the beginning and 308.1MB in the end (delta: -218.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 60.41ms. Allocated memory is still 360.7MB. Free memory was 308.1MB in the beginning and 303.8MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 23]: 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, 98 locations, 98 edges, 4 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: 6.2s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1474 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1234 mSDsluCounter, 1358 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1296 mSDsCounter, 107 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3884 IncrementalHoareTripleChecker+Invalid, 3991 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 107 mSolverCounterUnsat, 62 mSDtfsCounter, 3884 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=648occurred in iteration=4, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 457 NumberOfCodeBlocks, 457 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 449 ConstructedInterpolants, 0 QuantifiedInterpolants, 2859 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-29 11:08:41,973 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