./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_08-tricky_address3.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_08-tricky_address3.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 28b3bab484555e9055546754c9232dcacfc14ffc38dad13c847fa435ed7ff870 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 11:08:28,422 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 11:08:28,491 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-04-29 11:08:28,495 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 11:08:28,495 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 11:08:28,517 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 11:08:28,517 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 11:08:28,518 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 11:08:28,518 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 11:08:28,518 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 11:08:28,518 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 11:08:28,518 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 11:08:28,519 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 11:08:28,519 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 11:08:28,519 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-29 11:08:28,519 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 11:08:28,519 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-29 11:08:28,519 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 11:08:28,519 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 11:08:28,519 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-29 11:08:28,519 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 11:08:28,520 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-29 11:08:28,520 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-29 11:08:28,520 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-29 11:08:28,520 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 11:08:28,520 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-29 11:08:28,520 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 11:08:28,520 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 11:08:28,520 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 11:08:28,520 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:08:28,520 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:08:28,520 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:08:28,520 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 11:08:28,520 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:08:28,520 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:08:28,520 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:08:28,520 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 11:08:28,520 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 11:08:28,520 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-29 11:08:28,520 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-29 11:08:28,521 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-29 11:08:28,521 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-29 11:08:28,521 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 11:08:28,521 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 11:08:28,521 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 11:08:28,521 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 -> 28b3bab484555e9055546754c9232dcacfc14ffc38dad13c847fa435ed7ff870 [2025-04-29 11:08:28,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 11:08:28,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 11:08:28,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 11:08:28,957 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 11:08:28,957 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 11:08:28,959 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_08-tricky_address3.c [2025-04-29 11:08:30,198 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a7bb3577/dd25717615344e40976a280343760966/FLAG244a65bd4 [2025-04-29 11:08:30,396 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 11:08:30,397 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_08-tricky_address3.c [2025-04-29 11:08:30,398 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:08:30,398 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:08:30,403 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a7bb3577/dd25717615344e40976a280343760966/FLAG244a65bd4 [2025-04-29 11:08:31,199 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a7bb3577/dd25717615344e40976a280343760966 [2025-04-29 11:08:31,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 11:08:31,202 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 11:08:31,203 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 11:08:31,203 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 11:08:31,206 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 11:08:31,207 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:08:31" (1/1) ... [2025-04-29 11:08:31,207 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ed72725 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:31, skipping insertion in model container [2025-04-29 11:08:31,207 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:08:31" (1/1) ... [2025-04-29 11:08:31,217 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 11:08:31,356 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:08:31,367 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 11:08:31,388 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:08:31,399 INFO L204 MainTranslator]: Completed translation [2025-04-29 11:08:31,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:31 WrapperNode [2025-04-29 11:08:31,400 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 11:08:31,401 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 11:08:31,401 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 11:08:31,401 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 11:08:31,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:31" (1/1) ... [2025-04-29 11:08:31,411 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:31" (1/1) ... [2025-04-29 11:08:31,433 INFO L138 Inliner]: procedures = 14, calls = 34, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 111 [2025-04-29 11:08:31,434 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 11:08:31,435 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 11:08:31,435 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 11:08:31,435 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 11:08:31,441 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:31" (1/1) ... [2025-04-29 11:08:31,441 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:31" (1/1) ... [2025-04-29 11:08:31,443 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:31" (1/1) ... [2025-04-29 11:08:31,443 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:31" (1/1) ... [2025-04-29 11:08:31,450 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:31" (1/1) ... [2025-04-29 11:08:31,451 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:31" (1/1) ... [2025-04-29 11:08:31,452 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:31" (1/1) ... [2025-04-29 11:08:31,453 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:31" (1/1) ... [2025-04-29 11:08:31,454 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:31" (1/1) ... [2025-04-29 11:08:31,456 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 11:08:31,459 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 11:08:31,459 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 11:08:31,459 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 11:08:31,460 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:31" (1/1) ... [2025-04-29 11:08:31,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:08:31,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:08:31,482 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 11:08:31,484 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 11:08:31,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-29 11:08:31,499 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-29 11:08:31,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-29 11:08:31,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-04-29 11:08:31,499 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-29 11:08:31,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 11:08:31,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 11:08:31,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-04-29 11:08:31,500 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-29 11:08:31,500 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-29 11:08:31,501 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 11:08:31,560 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 11:08:31,562 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 11:08:31,784 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-29 11:08:31,784 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 11:08:31,798 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 11:08:31,799 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-29 11:08:31,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:08:31 BoogieIcfgContainer [2025-04-29 11:08:31,799 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 11:08:31,800 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 11:08:31,801 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 11:08:31,804 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 11:08:31,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 11:08:31" (1/3) ... [2025-04-29 11:08:31,804 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6546d1e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:08:31, skipping insertion in model container [2025-04-29 11:08:31,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:31" (2/3) ... [2025-04-29 11:08:31,805 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6546d1e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:08:31, skipping insertion in model container [2025-04-29 11:08:31,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:08:31" (3/3) ... [2025-04-29 11:08:31,806 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_08-tricky_address3.c [2025-04-29 11:08:31,815 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 11:08:31,817 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_08-tricky_address3.c that has 2 procedures, 121 locations, 122 edges, 1 initial locations, 1 loop locations, and 4 error locations. [2025-04-29 11:08:31,817 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-29 11:08:31,883 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-29 11:08:31,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 123 transitions, 250 flow [2025-04-29 11:08:31,956 INFO L116 PetriNetUnfolderBase]: 3/122 cut-off events. [2025-04-29 11:08:31,959 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:08:31,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 122 events. 3/122 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 78 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2025-04-29 11:08:31,961 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 123 transitions, 250 flow [2025-04-29 11:08:31,966 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 123 places, 122 transitions, 247 flow [2025-04-29 11:08:31,971 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 11:08:31,979 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;@4ac5a57b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 11:08:31,979 INFO L341 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-04-29 11:08:31,996 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-29 11:08:31,996 INFO L116 PetriNetUnfolderBase]: 3/72 cut-off events. [2025-04-29 11:08:31,996 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:08:31,996 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:31,997 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] [2025-04-29 11:08:31,997 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:08:32,002 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:32,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1225955442, now seen corresponding path program 1 times [2025-04-29 11:08:32,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:32,007 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580491926] [2025-04-29 11:08:32,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:32,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:32,063 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-04-29 11:08:32,075 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-04-29 11:08:32,075 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:32,075 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:32,243 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 11:08:32,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:32,250 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580491926] [2025-04-29 11:08:32,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580491926] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:32,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:32,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-29 11:08:32,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591703010] [2025-04-29 11:08:32,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:32,257 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:08:32,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:32,274 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:08:32,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:08:32,294 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 123 [2025-04-29 11:08:32,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 122 transitions, 247 flow. Second operand has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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 11:08:32,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:32,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 123 [2025-04-29 11:08:32,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:32,345 INFO L116 PetriNetUnfolderBase]: 7/184 cut-off events. [2025-04-29 11:08:32,345 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-29 11:08:32,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 184 events. 7/184 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 328 event pairs, 6 based on Foata normal form. 5/177 useless extension candidates. Maximal degree in co-relation 147. Up to 24 conditions per place. [2025-04-29 11:08:32,347 INFO L140 encePairwiseOnDemand]: 118/123 looper letters, 10 selfloop transitions, 2 changer transitions 1/121 dead transitions. [2025-04-29 11:08:32,347 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 121 transitions, 269 flow [2025-04-29 11:08:32,348 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:08:32,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:08:32,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 345 transitions. [2025-04-29 11:08:32,357 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9349593495934959 [2025-04-29 11:08:32,358 INFO L175 Difference]: Start difference. First operand has 123 places, 122 transitions, 247 flow. Second operand 3 states and 345 transitions. [2025-04-29 11:08:32,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 121 transitions, 269 flow [2025-04-29 11:08:32,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 121 transitions, 268 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-29 11:08:32,366 INFO L231 Difference]: Finished difference. Result has 125 places, 120 transitions, 252 flow [2025-04-29 11:08:32,369 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=125, PETRI_TRANSITIONS=120} [2025-04-29 11:08:32,371 INFO L279 CegarLoopForPetriNet]: 123 programPoint places, 2 predicate places. [2025-04-29 11:08:32,372 INFO L485 AbstractCegarLoop]: Abstraction has has 125 places, 120 transitions, 252 flow [2025-04-29 11:08:32,373 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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 11:08:32,373 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:32,373 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] [2025-04-29 11:08:32,373 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-29 11:08:32,373 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:08:32,374 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:32,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1444201427, now seen corresponding path program 1 times [2025-04-29 11:08:32,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:32,375 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801033953] [2025-04-29 11:08:32,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:32,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:32,388 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-04-29 11:08:32,405 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-04-29 11:08:32,406 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:32,406 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:32,543 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:08:32,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:32,543 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801033953] [2025-04-29 11:08:32,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801033953] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-29 11:08:32,544 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518256044] [2025-04-29 11:08:32,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:32,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:08:32,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:08:32,546 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-29 11:08:32,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-04-29 11:08:32,588 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-04-29 11:08:32,605 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-04-29 11:08:32,605 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:32,605 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:32,606 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-29 11:08:32,609 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:08:32,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:08:32,655 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-29 11:08:32,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:08:32,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518256044] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-29 11:08:32,695 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-29 11:08:32,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-04-29 11:08:32,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932228267] [2025-04-29 11:08:32,695 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-29 11:08:32,696 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-04-29 11:08:32,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:32,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-04-29 11:08:32,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-04-29 11:08:32,729 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 123 [2025-04-29 11:08:32,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 120 transitions, 252 flow. Second operand has 10 states, 10 states have (on average 109.0) internal successors, (1090), 10 states have internal predecessors, (1090), 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 11:08:32,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:32,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 123 [2025-04-29 11:08:32,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:32,836 INFO L116 PetriNetUnfolderBase]: 7/190 cut-off events. [2025-04-29 11:08:32,836 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-29 11:08:32,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 190 events. 7/190 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 323 event pairs, 6 based on Foata normal form. 2/181 useless extension candidates. Maximal degree in co-relation 194. Up to 24 conditions per place. [2025-04-29 11:08:32,837 INFO L140 encePairwiseOnDemand]: 117/123 looper letters, 14 selfloop transitions, 9 changer transitions 0/128 dead transitions. [2025-04-29 11:08:32,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 128 transitions, 316 flow [2025-04-29 11:08:32,838 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-29 11:08:32,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-04-29 11:08:32,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 988 transitions. [2025-04-29 11:08:32,844 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8925022583559169 [2025-04-29 11:08:32,845 INFO L175 Difference]: Start difference. First operand has 125 places, 120 transitions, 252 flow. Second operand 9 states and 988 transitions. [2025-04-29 11:08:32,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 128 transitions, 316 flow [2025-04-29 11:08:32,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 128 transitions, 314 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-29 11:08:32,848 INFO L231 Difference]: Finished difference. Result has 134 places, 126 transitions, 300 flow [2025-04-29 11:08:32,848 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=300, PETRI_PLACES=134, PETRI_TRANSITIONS=126} [2025-04-29 11:08:32,848 INFO L279 CegarLoopForPetriNet]: 123 programPoint places, 11 predicate places. [2025-04-29 11:08:32,848 INFO L485 AbstractCegarLoop]: Abstraction has has 134 places, 126 transitions, 300 flow [2025-04-29 11:08:32,849 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 109.0) internal successors, (1090), 10 states have internal predecessors, (1090), 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 11:08:32,849 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:32,850 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:08:32,856 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-04-29 11:08:33,050 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:08:33,051 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:08:33,051 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:33,051 INFO L85 PathProgramCache]: Analyzing trace with hash -147991373, now seen corresponding path program 2 times [2025-04-29 11:08:33,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:33,051 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906807024] [2025-04-29 11:08:33,052 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-29 11:08:33,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:33,061 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-04-29 11:08:33,071 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 54 of 69 statements. [2025-04-29 11:08:33,074 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-29 11:08:33,074 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:33,404 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-04-29 11:08:33,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:33,405 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906807024] [2025-04-29 11:08:33,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906807024] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:33,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:33,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:08:33,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474756460] [2025-04-29 11:08:33,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:33,407 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:08:33,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:33,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:08:33,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:08:33,650 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 123 [2025-04-29 11:08:33,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 126 transitions, 300 flow. Second operand has 6 states, 6 states have (on average 98.66666666666667) internal successors, (592), 6 states have internal predecessors, (592), 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 11:08:33,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:33,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 123 [2025-04-29 11:08:33,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:33,792 INFO L116 PetriNetUnfolderBase]: 103/495 cut-off events. [2025-04-29 11:08:33,792 INFO L117 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-04-29 11:08:33,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 761 conditions, 495 events. 103/495 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2310 event pairs, 40 based on Foata normal form. 0/459 useless extension candidates. Maximal degree in co-relation 688. Up to 184 conditions per place. [2025-04-29 11:08:33,797 INFO L140 encePairwiseOnDemand]: 112/123 looper letters, 31 selfloop transitions, 22 changer transitions 0/155 dead transitions. [2025-04-29 11:08:33,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 155 transitions, 464 flow [2025-04-29 11:08:33,798 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:08:33,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:08:33,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 636 transitions. [2025-04-29 11:08:33,800 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8617886178861789 [2025-04-29 11:08:33,800 INFO L175 Difference]: Start difference. First operand has 134 places, 126 transitions, 300 flow. Second operand 6 states and 636 transitions. [2025-04-29 11:08:33,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 155 transitions, 464 flow [2025-04-29 11:08:33,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 155 transitions, 458 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-04-29 11:08:33,805 INFO L231 Difference]: Finished difference. Result has 143 places, 147 transitions, 444 flow [2025-04-29 11:08:33,805 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=444, PETRI_PLACES=143, PETRI_TRANSITIONS=147} [2025-04-29 11:08:33,805 INFO L279 CegarLoopForPetriNet]: 123 programPoint places, 20 predicate places. [2025-04-29 11:08:33,805 INFO L485 AbstractCegarLoop]: Abstraction has has 143 places, 147 transitions, 444 flow [2025-04-29 11:08:33,806 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 98.66666666666667) internal successors, (592), 6 states have internal predecessors, (592), 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 11:08:33,806 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:33,806 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:08:33,806 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-29 11:08:33,806 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:08:33,807 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:33,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1789261283, now seen corresponding path program 1 times [2025-04-29 11:08:33,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:33,808 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693035191] [2025-04-29 11:08:33,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:33,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:33,822 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-04-29 11:08:33,829 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-04-29 11:08:33,830 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:33,830 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:33,932 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:08:33,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:33,932 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693035191] [2025-04-29 11:08:33,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693035191] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-29 11:08:33,932 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624708006] [2025-04-29 11:08:33,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:33,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:08:33,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:08:33,934 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-29 11:08:33,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-29 11:08:33,982 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-04-29 11:08:34,004 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-04-29 11:08:34,005 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:34,005 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:34,006 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-04-29 11:08:34,007 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:08:34,060 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:08:34,062 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-29 11:08:34,159 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:08:34,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624708006] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-29 11:08:34,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-29 11:08:34,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-04-29 11:08:34,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527697495] [2025-04-29 11:08:34,161 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-29 11:08:34,161 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-29 11:08:34,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:34,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-29 11:08:34,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-04-29 11:08:34,193 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 123 [2025-04-29 11:08:34,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 147 transitions, 444 flow. Second operand has 18 states, 18 states have (on average 109.0) internal successors, (1962), 18 states have internal predecessors, (1962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:08:34,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:34,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 123 [2025-04-29 11:08:34,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:34,419 INFO L116 PetriNetUnfolderBase]: 41/362 cut-off events. [2025-04-29 11:08:34,419 INFO L117 PetriNetUnfolderBase]: For 57/62 co-relation queries the response was YES. [2025-04-29 11:08:34,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 639 conditions, 362 events. 41/362 cut-off events. For 57/62 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1179 event pairs, 11 based on Foata normal form. 4/350 useless extension candidates. Maximal degree in co-relation 491. Up to 51 conditions per place. [2025-04-29 11:08:34,421 INFO L140 encePairwiseOnDemand]: 117/123 looper letters, 18 selfloop transitions, 21 changer transitions 0/165 dead transitions. [2025-04-29 11:08:34,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 165 transitions, 610 flow [2025-04-29 11:08:34,422 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-29 11:08:34,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-04-29 11:08:34,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2290 transitions. [2025-04-29 11:08:34,426 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.886566008517228 [2025-04-29 11:08:34,426 INFO L175 Difference]: Start difference. First operand has 143 places, 147 transitions, 444 flow. Second operand 21 states and 2290 transitions. [2025-04-29 11:08:34,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 165 transitions, 610 flow [2025-04-29 11:08:34,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 165 transitions, 610 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-29 11:08:34,433 INFO L231 Difference]: Finished difference. Result has 168 places, 160 transitions, 574 flow [2025-04-29 11:08:34,434 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=574, PETRI_PLACES=168, PETRI_TRANSITIONS=160} [2025-04-29 11:08:34,435 INFO L279 CegarLoopForPetriNet]: 123 programPoint places, 45 predicate places. [2025-04-29 11:08:34,435 INFO L485 AbstractCegarLoop]: Abstraction has has 168 places, 160 transitions, 574 flow [2025-04-29 11:08:34,437 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 109.0) internal successors, (1962), 18 states have internal predecessors, (1962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:08:34,437 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:34,437 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:08:34,444 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-04-29 11:08:34,638 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2025-04-29 11:08:34,638 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:08:34,639 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:34,639 INFO L85 PathProgramCache]: Analyzing trace with hash -2005299293, now seen corresponding path program 2 times [2025-04-29 11:08:34,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:34,639 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335606821] [2025-04-29 11:08:34,639 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-29 11:08:34,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:34,650 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 97 statements into 2 equivalence classes. [2025-04-29 11:08:34,658 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 62 of 97 statements. [2025-04-29 11:08:34,659 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-29 11:08:34,659 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:34,911 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-04-29 11:08:34,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:34,912 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335606821] [2025-04-29 11:08:34,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335606821] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:34,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:34,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:08:34,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245162281] [2025-04-29 11:08:34,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:34,913 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:08:34,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:34,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:08:34,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:08:35,124 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 123 [2025-04-29 11:08:35,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 160 transitions, 574 flow. Second operand has 6 states, 6 states have (on average 93.66666666666667) internal successors, (562), 6 states have internal predecessors, (562), 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 11:08:35,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:35,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 123 [2025-04-29 11:08:35,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:35,327 INFO L116 PetriNetUnfolderBase]: 223/855 cut-off events. [2025-04-29 11:08:35,327 INFO L117 PetriNetUnfolderBase]: For 188/194 co-relation queries the response was YES. [2025-04-29 11:08:35,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1726 conditions, 855 events. 223/855 cut-off events. For 188/194 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4711 event pairs, 82 based on Foata normal form. 5/801 useless extension candidates. Maximal degree in co-relation 1569. Up to 407 conditions per place. [2025-04-29 11:08:35,331 INFO L140 encePairwiseOnDemand]: 108/123 looper letters, 53 selfloop transitions, 39 changer transitions 5/205 dead transitions. [2025-04-29 11:08:35,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 205 transitions, 888 flow [2025-04-29 11:08:35,332 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:08:35,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:08:35,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 622 transitions. [2025-04-29 11:08:35,333 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8428184281842819 [2025-04-29 11:08:35,333 INFO L175 Difference]: Start difference. First operand has 168 places, 160 transitions, 574 flow. Second operand 6 states and 622 transitions. [2025-04-29 11:08:35,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 205 transitions, 888 flow [2025-04-29 11:08:35,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 205 transitions, 864 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-04-29 11:08:35,338 INFO L231 Difference]: Finished difference. Result has 172 places, 196 transitions, 838 flow [2025-04-29 11:08:35,338 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=550, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=838, PETRI_PLACES=172, PETRI_TRANSITIONS=196} [2025-04-29 11:08:35,339 INFO L279 CegarLoopForPetriNet]: 123 programPoint places, 49 predicate places. [2025-04-29 11:08:35,339 INFO L485 AbstractCegarLoop]: Abstraction has has 172 places, 196 transitions, 838 flow [2025-04-29 11:08:35,339 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 93.66666666666667) internal successors, (562), 6 states have internal predecessors, (562), 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 11:08:35,339 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:35,339 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:08:35,340 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-29 11:08:35,340 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:08:35,340 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:35,340 INFO L85 PathProgramCache]: Analyzing trace with hash 300061580, now seen corresponding path program 1 times [2025-04-29 11:08:35,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:35,340 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843193730] [2025-04-29 11:08:35,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:35,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:35,348 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-04-29 11:08:35,356 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-04-29 11:08:35,356 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:35,356 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:35,597 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:08:35,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:35,598 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843193730] [2025-04-29 11:08:35,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843193730] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-29 11:08:35,598 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691088446] [2025-04-29 11:08:35,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:35,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:08:35,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:08:35,600 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-29 11:08:35,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-04-29 11:08:35,640 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-04-29 11:08:35,661 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-04-29 11:08:35,661 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:35,661 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:35,662 INFO L256 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-04-29 11:08:35,664 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:08:35,738 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:08:35,738 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-29 11:08:35,910 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:08:35,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691088446] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-29 11:08:35,910 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-29 11:08:35,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2025-04-29 11:08:35,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629672585] [2025-04-29 11:08:35,911 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-29 11:08:35,911 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-04-29 11:08:35,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:35,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-04-29 11:08:35,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-04-29 11:08:35,937 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 123 [2025-04-29 11:08:35,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 196 transitions, 838 flow. Second operand has 23 states, 23 states have (on average 109.08695652173913) internal successors, (2509), 23 states have internal predecessors, (2509), 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 11:08:35,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:35,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 123 [2025-04-29 11:08:35,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:36,243 INFO L116 PetriNetUnfolderBase]: 120/627 cut-off events. [2025-04-29 11:08:36,243 INFO L117 PetriNetUnfolderBase]: For 324/329 co-relation queries the response was YES. [2025-04-29 11:08:36,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1368 conditions, 627 events. 120/627 cut-off events. For 324/329 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2919 event pairs, 15 based on Foata normal form. 3/602 useless extension candidates. Maximal degree in co-relation 1132. Up to 118 conditions per place. [2025-04-29 11:08:36,248 INFO L140 encePairwiseOnDemand]: 117/123 looper letters, 21 selfloop transitions, 30 changer transitions 0/213 dead transitions. [2025-04-29 11:08:36,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 213 transitions, 1062 flow [2025-04-29 11:08:36,248 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-04-29 11:08:36,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-04-29 11:08:36,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 3264 transitions. [2025-04-29 11:08:36,254 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8845528455284553 [2025-04-29 11:08:36,254 INFO L175 Difference]: Start difference. First operand has 172 places, 196 transitions, 838 flow. Second operand 30 states and 3264 transitions. [2025-04-29 11:08:36,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 213 transitions, 1062 flow [2025-04-29 11:08:36,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 213 transitions, 1030 flow, removed 16 selfloop flow, removed 0 redundant places. [2025-04-29 11:08:36,261 INFO L231 Difference]: Finished difference. Result has 204 places, 206 transitions, 958 flow [2025-04-29 11:08:36,261 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=806, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=958, PETRI_PLACES=204, PETRI_TRANSITIONS=206} [2025-04-29 11:08:36,262 INFO L279 CegarLoopForPetriNet]: 123 programPoint places, 81 predicate places. [2025-04-29 11:08:36,263 INFO L485 AbstractCegarLoop]: Abstraction has has 204 places, 206 transitions, 958 flow [2025-04-29 11:08:36,264 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 109.08695652173913) internal successors, (2509), 23 states have internal predecessors, (2509), 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 11:08:36,264 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:36,264 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:08:36,270 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-04-29 11:08:36,469 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:08:36,469 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:08:36,470 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:36,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1469596337, now seen corresponding path program 2 times [2025-04-29 11:08:36,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:36,470 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162103114] [2025-04-29 11:08:36,470 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-29 11:08:36,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:36,479 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 117 statements into 2 equivalence classes. [2025-04-29 11:08:36,483 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 67 of 117 statements. [2025-04-29 11:08:36,483 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-29 11:08:36,483 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:36,666 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-04-29 11:08:36,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:36,667 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162103114] [2025-04-29 11:08:36,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162103114] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:36,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:36,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:08:36,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517122993] [2025-04-29 11:08:36,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:36,667 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:08:36,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:36,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:08:36,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:08:36,744 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 123 [2025-04-29 11:08:36,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 206 transitions, 958 flow. Second operand has 6 states, 6 states have (on average 101.33333333333333) internal successors, (608), 6 states have internal predecessors, (608), 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 11:08:36,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:36,746 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 123 [2025-04-29 11:08:36,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:36,896 INFO L116 PetriNetUnfolderBase]: 212/894 cut-off events. [2025-04-29 11:08:36,897 INFO L117 PetriNetUnfolderBase]: For 585/633 co-relation queries the response was YES. [2025-04-29 11:08:36,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2154 conditions, 894 events. 212/894 cut-off events. For 585/633 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 4935 event pairs, 40 based on Foata normal form. 3/879 useless extension candidates. Maximal degree in co-relation 1917. Up to 338 conditions per place. [2025-04-29 11:08:36,901 INFO L140 encePairwiseOnDemand]: 112/123 looper letters, 72 selfloop transitions, 40 changer transitions 0/245 dead transitions. [2025-04-29 11:08:36,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 245 transitions, 1366 flow [2025-04-29 11:08:36,902 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:08:36,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:08:36,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 651 transitions. [2025-04-29 11:08:36,903 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8821138211382114 [2025-04-29 11:08:36,903 INFO L175 Difference]: Start difference. First operand has 204 places, 206 transitions, 958 flow. Second operand 6 states and 651 transitions. [2025-04-29 11:08:36,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 245 transitions, 1366 flow [2025-04-29 11:08:36,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 245 transitions, 1320 flow, removed 5 selfloop flow, removed 18 redundant places. [2025-04-29 11:08:36,910 INFO L231 Difference]: Finished difference. Result has 196 places, 237 transitions, 1280 flow [2025-04-29 11:08:36,910 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=912, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1280, PETRI_PLACES=196, PETRI_TRANSITIONS=237} [2025-04-29 11:08:36,911 INFO L279 CegarLoopForPetriNet]: 123 programPoint places, 73 predicate places. [2025-04-29 11:08:36,911 INFO L485 AbstractCegarLoop]: Abstraction has has 196 places, 237 transitions, 1280 flow [2025-04-29 11:08:36,911 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 101.33333333333333) internal successors, (608), 6 states have internal predecessors, (608), 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 11:08:36,911 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:36,912 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:08:36,912 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-04-29 11:08:36,912 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:08:36,912 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:36,913 INFO L85 PathProgramCache]: Analyzing trace with hash -17572170, now seen corresponding path program 1 times [2025-04-29 11:08:36,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:36,913 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750506149] [2025-04-29 11:08:36,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:36,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:36,924 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-04-29 11:08:36,935 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-04-29 11:08:36,936 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:36,936 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:37,279 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-04-29 11:08:37,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:37,279 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750506149] [2025-04-29 11:08:37,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750506149] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:37,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:37,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:08:37,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518704777] [2025-04-29 11:08:37,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:37,280 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:08:37,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:37,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:08:37,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:08:37,351 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 123 [2025-04-29 11:08:37,352 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 237 transitions, 1280 flow. Second operand has 6 states, 6 states have (on average 96.33333333333333) internal successors, (578), 6 states have internal predecessors, (578), 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 11:08:37,352 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:37,352 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 123 [2025-04-29 11:08:37,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:37,581 INFO L116 PetriNetUnfolderBase]: 361/1299 cut-off events. [2025-04-29 11:08:37,582 INFO L117 PetriNetUnfolderBase]: For 1484/1525 co-relation queries the response was YES. [2025-04-29 11:08:37,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3638 conditions, 1299 events. 361/1299 cut-off events. For 1484/1525 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 7984 event pairs, 87 based on Foata normal form. 2/1265 useless extension candidates. Maximal degree in co-relation 3418. Up to 610 conditions per place. [2025-04-29 11:08:37,589 INFO L140 encePairwiseOnDemand]: 108/123 looper letters, 100 selfloop transitions, 64 changer transitions 10/298 dead transitions. [2025-04-29 11:08:37,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 298 transitions, 1968 flow [2025-04-29 11:08:37,590 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:08:37,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:08:37,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 637 transitions. [2025-04-29 11:08:37,591 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8631436314363143 [2025-04-29 11:08:37,591 INFO L175 Difference]: Start difference. First operand has 196 places, 237 transitions, 1280 flow. Second operand 6 states and 637 transitions. [2025-04-29 11:08:37,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 298 transitions, 1968 flow [2025-04-29 11:08:37,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 298 transitions, 1950 flow, removed 9 selfloop flow, removed 0 redundant places. [2025-04-29 11:08:37,602 INFO L231 Difference]: Finished difference. Result has 206 places, 284 transitions, 1848 flow [2025-04-29 11:08:37,603 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=1262, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1848, PETRI_PLACES=206, PETRI_TRANSITIONS=284} [2025-04-29 11:08:37,603 INFO L279 CegarLoopForPetriNet]: 123 programPoint places, 83 predicate places. [2025-04-29 11:08:37,604 INFO L485 AbstractCegarLoop]: Abstraction has has 206 places, 284 transitions, 1848 flow [2025-04-29 11:08:37,604 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 96.33333333333333) internal successors, (578), 6 states have internal predecessors, (578), 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 11:08:37,604 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:37,604 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:08:37,604 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-04-29 11:08:37,604 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:08:37,605 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:37,605 INFO L85 PathProgramCache]: Analyzing trace with hash -19124792, now seen corresponding path program 1 times [2025-04-29 11:08:37,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:37,605 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871908998] [2025-04-29 11:08:37,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:37,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:37,615 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-04-29 11:08:37,653 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-04-29 11:08:37,656 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:37,656 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:38,830 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-04-29 11:08:38,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:38,831 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871908998] [2025-04-29 11:08:38,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871908998] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:38,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:38,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-04-29 11:08:38,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962409357] [2025-04-29 11:08:38,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:38,832 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-04-29 11:08:38,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:38,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-04-29 11:08:38,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2025-04-29 11:08:39,277 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 123 [2025-04-29 11:08:39,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 284 transitions, 1848 flow. Second operand has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 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 11:08:39,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:39,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 123 [2025-04-29 11:08:39,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:39,896 INFO L116 PetriNetUnfolderBase]: 460/1606 cut-off events. [2025-04-29 11:08:39,896 INFO L117 PetriNetUnfolderBase]: For 3028/3149 co-relation queries the response was YES. [2025-04-29 11:08:39,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5251 conditions, 1606 events. 460/1606 cut-off events. For 3028/3149 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 10446 event pairs, 19 based on Foata normal form. 50/1640 useless extension candidates. Maximal degree in co-relation 5014. Up to 571 conditions per place. [2025-04-29 11:08:39,906 INFO L140 encePairwiseOnDemand]: 102/123 looper letters, 190 selfloop transitions, 78 changer transitions 46/433 dead transitions. [2025-04-29 11:08:39,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 433 transitions, 3564 flow [2025-04-29 11:08:39,907 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-29 11:08:39,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-04-29 11:08:39,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1199 transitions. [2025-04-29 11:08:39,909 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8123306233062331 [2025-04-29 11:08:39,909 INFO L175 Difference]: Start difference. First operand has 206 places, 284 transitions, 1848 flow. Second operand 12 states and 1199 transitions. [2025-04-29 11:08:39,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 433 transitions, 3564 flow [2025-04-29 11:08:39,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 433 transitions, 3478 flow, removed 43 selfloop flow, removed 0 redundant places. [2025-04-29 11:08:39,929 INFO L231 Difference]: Finished difference. Result has 225 places, 321 transitions, 2396 flow [2025-04-29 11:08:39,930 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=1774, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2396, PETRI_PLACES=225, PETRI_TRANSITIONS=321} [2025-04-29 11:08:39,930 INFO L279 CegarLoopForPetriNet]: 123 programPoint places, 102 predicate places. [2025-04-29 11:08:39,930 INFO L485 AbstractCegarLoop]: Abstraction has has 225 places, 321 transitions, 2396 flow [2025-04-29 11:08:39,931 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 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 11:08:39,931 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:39,931 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:08:39,931 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-04-29 11:08:39,931 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:08:39,932 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:39,932 INFO L85 PathProgramCache]: Analyzing trace with hash -967158576, now seen corresponding path program 2 times [2025-04-29 11:08:39,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:39,932 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167319676] [2025-04-29 11:08:39,932 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-29 11:08:39,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:39,941 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 131 statements into 2 equivalence classes. [2025-04-29 11:08:39,964 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 81 of 131 statements. [2025-04-29 11:08:39,966 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-29 11:08:39,966 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:43,804 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-04-29 11:08:43,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:43,805 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167319676] [2025-04-29 11:08:43,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167319676] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:43,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:43,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-04-29 11:08:43,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108572756] [2025-04-29 11:08:43,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:43,805 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-29 11:08:43,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:43,806 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-29 11:08:43,806 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2025-04-29 11:08:44,802 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 123 [2025-04-29 11:08:44,803 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 321 transitions, 2396 flow. Second operand has 13 states, 13 states have (on average 83.0) internal successors, (1079), 13 states have internal predecessors, (1079), 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 11:08:44,803 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:44,803 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 123 [2025-04-29 11:08:44,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:45,641 INFO L116 PetriNetUnfolderBase]: 456/1551 cut-off events. [2025-04-29 11:08:45,641 INFO L117 PetriNetUnfolderBase]: For 4439/4617 co-relation queries the response was YES. [2025-04-29 11:08:45,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5952 conditions, 1551 events. 456/1551 cut-off events. For 4439/4617 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 9930 event pairs, 80 based on Foata normal form. 105/1639 useless extension candidates. Maximal degree in co-relation 5706. Up to 662 conditions per place. [2025-04-29 11:08:45,652 INFO L140 encePairwiseOnDemand]: 97/123 looper letters, 174 selfloop transitions, 89 changer transitions 32/404 dead transitions. [2025-04-29 11:08:45,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 404 transitions, 3615 flow [2025-04-29 11:08:45,653 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-29 11:08:45,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-04-29 11:08:45,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1268 transitions. [2025-04-29 11:08:45,655 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7363530778164924 [2025-04-29 11:08:45,655 INFO L175 Difference]: Start difference. First operand has 225 places, 321 transitions, 2396 flow. Second operand 14 states and 1268 transitions. [2025-04-29 11:08:45,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 404 transitions, 3615 flow [2025-04-29 11:08:45,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 404 transitions, 3591 flow, removed 12 selfloop flow, removed 0 redundant places. [2025-04-29 11:08:45,678 INFO L231 Difference]: Finished difference. Result has 239 places, 325 transitions, 2624 flow [2025-04-29 11:08:45,679 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=2372, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2624, PETRI_PLACES=239, PETRI_TRANSITIONS=325} [2025-04-29 11:08:45,679 INFO L279 CegarLoopForPetriNet]: 123 programPoint places, 116 predicate places. [2025-04-29 11:08:45,679 INFO L485 AbstractCegarLoop]: Abstraction has has 239 places, 325 transitions, 2624 flow [2025-04-29 11:08:45,680 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.0) internal successors, (1079), 13 states have internal predecessors, (1079), 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 11:08:45,680 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:45,680 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:08:45,680 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-04-29 11:08:45,680 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:08:45,681 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:45,681 INFO L85 PathProgramCache]: Analyzing trace with hash -164988746, now seen corresponding path program 3 times [2025-04-29 11:08:45,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:45,681 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709465651] [2025-04-29 11:08:45,681 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-29 11:08:45,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:45,691 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 131 statements into 11 equivalence classes. [2025-04-29 11:08:45,708 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 81 of 131 statements. [2025-04-29 11:08:45,708 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-29 11:08:45,708 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:48,343 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-04-29 11:08:48,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:48,343 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709465651] [2025-04-29 11:08:48,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709465651] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:48,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:48,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-04-29 11:08:48,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687890980] [2025-04-29 11:08:48,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:48,343 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-04-29 11:08:48,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:48,344 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-04-29 11:08:48,344 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2025-04-29 11:08:49,170 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 123 [2025-04-29 11:08:49,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 325 transitions, 2624 flow. Second operand has 15 states, 15 states have (on average 84.73333333333333) internal successors, (1271), 15 states have internal predecessors, (1271), 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 11:08:49,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:49,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 123 [2025-04-29 11:08:49,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:50,444 INFO L116 PetriNetUnfolderBase]: 777/2458 cut-off events. [2025-04-29 11:08:50,444 INFO L117 PetriNetUnfolderBase]: For 9662/9898 co-relation queries the response was YES. [2025-04-29 11:08:50,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10428 conditions, 2458 events. 777/2458 cut-off events. For 9662/9898 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 18343 event pairs, 77 based on Foata normal form. 81/2510 useless extension candidates. Maximal degree in co-relation 10178. Up to 632 conditions per place. [2025-04-29 11:08:50,460 INFO L140 encePairwiseOnDemand]: 98/123 looper letters, 355 selfloop transitions, 102 changer transitions 17/587 dead transitions. [2025-04-29 11:08:50,461 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 587 transitions, 6286 flow [2025-04-29 11:08:50,461 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-04-29 11:08:50,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-04-29 11:08:50,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1548 transitions. [2025-04-29 11:08:50,463 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7403156384505022 [2025-04-29 11:08:50,463 INFO L175 Difference]: Start difference. First operand has 239 places, 325 transitions, 2624 flow. Second operand 17 states and 1548 transitions. [2025-04-29 11:08:50,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 587 transitions, 6286 flow [2025-04-29 11:08:50,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 587 transitions, 6124 flow, removed 2 selfloop flow, removed 9 redundant places. [2025-04-29 11:08:50,502 INFO L231 Difference]: Finished difference. Result has 253 places, 405 transitions, 4035 flow [2025-04-29 11:08:50,503 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=2542, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=4035, PETRI_PLACES=253, PETRI_TRANSITIONS=405} [2025-04-29 11:08:50,504 INFO L279 CegarLoopForPetriNet]: 123 programPoint places, 130 predicate places. [2025-04-29 11:08:50,504 INFO L485 AbstractCegarLoop]: Abstraction has has 253 places, 405 transitions, 4035 flow [2025-04-29 11:08:50,504 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 84.73333333333333) internal successors, (1271), 15 states have internal predecessors, (1271), 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 11:08:50,504 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:50,504 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:08:50,504 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-04-29 11:08:50,505 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:08:50,505 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:50,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1932768632, now seen corresponding path program 4 times [2025-04-29 11:08:50,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:50,505 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559221537] [2025-04-29 11:08:50,505 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-29 11:08:50,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:50,514 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 131 statements into 2 equivalence classes. [2025-04-29 11:08:50,558 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 111 of 131 statements. [2025-04-29 11:08:50,558 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-29 11:08:50,558 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:54,787 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:08:54,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:54,788 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559221537] [2025-04-29 11:08:54,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559221537] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-29 11:08:54,788 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268835587] [2025-04-29 11:08:54,788 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-29 11:08:54,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:08:54,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:08:54,791 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-29 11:08:54,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-04-29 11:08:54,863 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 131 statements into 2 equivalence classes. [2025-04-29 11:08:54,912 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 111 of 131 statements. [2025-04-29 11:08:54,912 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-29 11:08:54,912 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:54,919 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 63 conjuncts are in the unsatisfiable core [2025-04-29 11:08:54,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:08:55,259 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2025-04-29 11:08:55,294 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2025-04-29 11:08:55,329 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2025-04-29 11:08:55,372 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2025-04-29 11:08:55,553 INFO L325 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2025-04-29 11:08:55,553 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2025-04-29 11:08:55,604 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2025-04-29 11:08:55,803 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-29 11:08:55,804 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-29 11:08:55,805 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-29 11:08:55,806 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-29 11:08:55,807 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-29 11:08:55,808 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 73 [2025-04-29 11:08:55,930 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-04-29 11:08:55,931 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-29 11:08:56,736 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 47 [2025-04-29 11:08:56,789 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-04-29 11:08:56,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268835587] provided 1 perfect and 1 imperfect interpolant sequences [2025-04-29 11:08:56,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-04-29 11:08:56,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [33, 26] total 66 [2025-04-29 11:08:56,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606416868] [2025-04-29 11:08:56,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:56,794 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-04-29 11:08:56,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:56,794 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-04-29 11:08:56,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=4150, Unknown=0, NotChecked=0, Total=4422 [2025-04-29 11:08:58,171 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 123 [2025-04-29 11:08:58,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 405 transitions, 4035 flow. Second operand has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 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 11:08:58,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:58,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 123 [2025-04-29 11:08:58,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:09:00,312 INFO L116 PetriNetUnfolderBase]: 883/2749 cut-off events. [2025-04-29 11:09:00,312 INFO L117 PetriNetUnfolderBase]: For 14650/14920 co-relation queries the response was YES. [2025-04-29 11:09:00,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12584 conditions, 2749 events. 883/2749 cut-off events. For 14650/14920 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 20914 event pairs, 77 based on Foata normal form. 145/2859 useless extension candidates. Maximal degree in co-relation 12326. Up to 1152 conditions per place. [2025-04-29 11:09:00,337 INFO L140 encePairwiseOnDemand]: 98/123 looper letters, 168 selfloop transitions, 214 changer transitions 20/519 dead transitions. [2025-04-29 11:09:00,337 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 519 transitions, 6119 flow [2025-04-29 11:09:00,338 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-04-29 11:09:00,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2025-04-29 11:09:00,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1552 transitions. [2025-04-29 11:09:00,340 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7886178861788617 [2025-04-29 11:09:00,340 INFO L175 Difference]: Start difference. First operand has 253 places, 405 transitions, 4035 flow. Second operand 16 states and 1552 transitions. [2025-04-29 11:09:00,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 519 transitions, 6119 flow [2025-04-29 11:09:00,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 519 transitions, 6055 flow, removed 26 selfloop flow, removed 6 redundant places. [2025-04-29 11:09:00,393 INFO L231 Difference]: Finished difference. Result has 267 places, 462 transitions, 5322 flow [2025-04-29 11:09:00,394 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=3975, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=158, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=5322, PETRI_PLACES=267, PETRI_TRANSITIONS=462} [2025-04-29 11:09:00,394 INFO L279 CegarLoopForPetriNet]: 123 programPoint places, 144 predicate places. [2025-04-29 11:09:00,394 INFO L485 AbstractCegarLoop]: Abstraction has has 267 places, 462 transitions, 5322 flow [2025-04-29 11:09:00,395 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 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 11:09:00,395 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:09:00,395 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:09:00,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-04-29 11:09:00,599 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:09:00,599 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:09:00,600 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:09:00,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1520585904, now seen corresponding path program 5 times [2025-04-29 11:09:00,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:09:00,600 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752399092] [2025-04-29 11:09:00,600 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-29 11:09:00,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:09:00,608 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 131 statements into 11 equivalence classes. [2025-04-29 11:09:00,635 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 131 of 131 statements. [2025-04-29 11:09:00,635 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-04-29 11:09:00,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:04,809 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 237 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-29 11:09:04,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:09:04,810 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752399092] [2025-04-29 11:09:04,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752399092] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-29 11:09:04,810 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192666956] [2025-04-29 11:09:04,810 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-29 11:09:04,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:09:04,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:09:04,814 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-29 11:09:04,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-04-29 11:09:04,868 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 131 statements into 11 equivalence classes. [2025-04-29 11:09:04,922 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 131 of 131 statements. [2025-04-29 11:09:04,922 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-04-29 11:09:04,922 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:04,924 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 65 conjuncts are in the unsatisfiable core [2025-04-29 11:09:04,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:09:05,242 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2025-04-29 11:09:05,346 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2025-04-29 11:09:05,387 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2025-04-29 11:09:05,437 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2025-04-29 11:09:05,499 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2025-04-29 11:09:05,566 INFO L325 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2025-04-29 11:09:05,566 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2025-04-29 11:09:05,776 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-29 11:09:05,778 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-29 11:09:05,779 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-29 11:09:05,786 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-29 11:09:05,792 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-29 11:09:05,792 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 73 [2025-04-29 11:09:05,899 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-04-29 11:09:05,899 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-29 11:09:06,661 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2025-04-29 11:09:06,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [192666956] provided 1 perfect and 1 imperfect interpolant sequences [2025-04-29 11:09:06,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-04-29 11:09:06,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [35, 25] total 68 [2025-04-29 11:09:06,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384747019] [2025-04-29 11:09:06,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:09:06,662 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-04-29 11:09:06,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:09:06,662 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-04-29 11:09:06,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=311, Invalid=4381, Unknown=0, NotChecked=0, Total=4692 [2025-04-29 11:09:07,630 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 123 [2025-04-29 11:09:07,631 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 462 transitions, 5322 flow. Second operand has 11 states, 11 states have (on average 88.0) internal successors, (968), 11 states have internal predecessors, (968), 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 11:09:07,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:09:07,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 123 [2025-04-29 11:09:07,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:09:09,481 INFO L116 PetriNetUnfolderBase]: 982/2985 cut-off events. [2025-04-29 11:09:09,481 INFO L117 PetriNetUnfolderBase]: For 19755/19919 co-relation queries the response was YES. [2025-04-29 11:09:09,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14796 conditions, 2985 events. 982/2985 cut-off events. For 19755/19919 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 22911 event pairs, 54 based on Foata normal form. 80/3040 useless extension candidates. Maximal degree in co-relation 14534. Up to 1136 conditions per place. [2025-04-29 11:09:09,521 INFO L140 encePairwiseOnDemand]: 99/123 looper letters, 209 selfloop transitions, 239 changer transitions 25/588 dead transitions. [2025-04-29 11:09:09,521 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 588 transitions, 7612 flow [2025-04-29 11:09:09,522 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-29 11:09:09,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-04-29 11:09:09,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1282 transitions. [2025-04-29 11:09:09,527 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8017510944340213 [2025-04-29 11:09:09,527 INFO L175 Difference]: Start difference. First operand has 267 places, 462 transitions, 5322 flow. Second operand 13 states and 1282 transitions. [2025-04-29 11:09:09,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 588 transitions, 7612 flow [2025-04-29 11:09:09,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 588 transitions, 7360 flow, removed 60 selfloop flow, removed 3 redundant places. [2025-04-29 11:09:09,688 INFO L231 Difference]: Finished difference. Result has 282 places, 510 transitions, 6670 flow [2025-04-29 11:09:09,692 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=5101, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=193, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=6670, PETRI_PLACES=282, PETRI_TRANSITIONS=510} [2025-04-29 11:09:09,693 INFO L279 CegarLoopForPetriNet]: 123 programPoint places, 159 predicate places. [2025-04-29 11:09:09,693 INFO L485 AbstractCegarLoop]: Abstraction has has 282 places, 510 transitions, 6670 flow [2025-04-29 11:09:09,697 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 88.0) internal successors, (968), 11 states have internal predecessors, (968), 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 11:09:09,698 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:09:09,698 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:09:09,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-04-29 11:09:09,898 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-04-29 11:09:09,899 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:09:09,900 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:09:09,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1934677452, now seen corresponding path program 6 times [2025-04-29 11:09:09,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:09:09,901 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390917061] [2025-04-29 11:09:09,901 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-29 11:09:09,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:09:09,917 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 131 statements into 11 equivalence classes. [2025-04-29 11:09:10,019 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 79 of 131 statements. [2025-04-29 11:09:10,019 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-04-29 11:09:10,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:15,219 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2025-04-29 11:09:15,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:09:15,219 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390917061] [2025-04-29 11:09:15,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390917061] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:09:15,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:09:15,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2025-04-29 11:09:15,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246854940] [2025-04-29 11:09:15,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:09:15,220 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-04-29 11:09:15,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:09:15,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-04-29 11:09:15,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2025-04-29 11:09:17,416 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 123 [2025-04-29 11:09:17,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 510 transitions, 6670 flow. Second operand has 17 states, 17 states have (on average 80.70588235294117) internal successors, (1372), 17 states have internal predecessors, (1372), 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 11:09:17,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:09:17,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 123 [2025-04-29 11:09:17,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Killed by 15